Class / Patent application number | Description | Number of patent applications / Date published |
219661000 | Power switching | 50 |
20090014440 | INDUCTION HEATING COOKING DEVICE - An induction heating cooking device has an inverter including a resonant circuit, and a heating output control part. The resonant circuit has a resonant capacitor and a heating coil that is magnetically coupled to a load. The inverter has first and second switching elements. The heating output control part performs control by inverting the rate values of the driving periods of the first and second switching elements. The driving of the inverter is thus controlled so that substantially the same heating output is obtained to average the losses of the first and second switching elements. | 01-15-2009 |
20100006563 | INDUCTION HEATING DEVICE AND ASSOCIATED OPERATING AND SAUCEPAN DETECTION METHOD - The invention relates to a method for operating an induction heating device, to a pot detection method for an induction heating device and to an induction heating device. The method for operating the induction heating device is characterized by determining a low point of a resonant cycle on a linking node (N | 01-14-2010 |
20100072193 | METHOD AND APPARATUS FOR THE HEAT TREATMENT OF WELDS - To improve and further develop the heat treatment of the weld and the joining weld regions ( | 03-25-2010 |
20100258556 | ELECTROMAGNETIC INDUCTION HEATING DEVICE - Provided is a low cost and highly safe electromagnetic induction heating device capable of uniformly heating an object to be heated. A work coil ( | 10-14-2010 |
20110120989 | METHOD AND INDUCTION HEATING DEVICE FOR DETERMINING A TEMPERATURE OF A COOKING VESSEL BASE WHICH IS HEATED BY MEANS OF AN INDUCTION HEATING COIL - An induction heating device comprises a frequency converter that generates a high-frequency drive voltage from an intermediate circuit voltage generated at least temporarily as a function of an AC mains voltage, a resonant circuit having an induction heating coil, with the drive voltage applied to the resonant circuit, and a temperature detection device that determines a temperature of a cooking vessel base which is heated by means of the induction heating coil. An auxiliary voltage source generated the intermediate circuit voltage over predefined time periods at a constant level. The frequency converter generates the drive voltage over time periods such that the resonant circuit oscillates at a natural resonant frequency in a substantially de-attenuated manner, and the temperature detection device further measuring at least one oscillation parameter over the time periods, and to evaluate the at least one measured oscillation parameter in order to determine the temperature. | 05-26-2011 |
20110139771 | Series-Parallel Resonant Inverters - A series-parallel resonant inverter inductively couples a switchable DC power source, which has a positive reference voltage node, a negative voltage reference node and a common reference node to a load. The load comprises a parallel resonator that is inductively coupled to the work piece and a series resonator. The series and parallel resonators each preferably has impedance, where the series circuit's impedance is greater than the impedance of the parallel circuit. The series resonator could include a high impedance inductor and a DC blocking capacitor in series with each other. | 06-16-2011 |
20110192838 | INDUCTIVE HEATING DEVICE - Disclosed is an inductive heating device which can lower losses in the device and readily provide cooling, wherein a controller is operated in a first control mode which controls the operation so that a unipolar first switching element and a unipolar second switching element conduct alternately when one of a bipolar third switching element and a bipolar fourth switching element is conducting and the other is disconnected when an aluminum object to be heated is heated, and in a second control mode in which the conduction of the first switching element and the fourth switching element and the conduction of the second switching element and the third switching element alternate when an iron object to be heated is heated. | 08-11-2011 |
20110233199 | HOB HAVING AT LEAST ONE INDUCTOR, AT LEAST ONE INVERTER AND A SWITCHING APPARATUS - A hob having at least one inductor, at least one inverter, a switching apparatus and a detection circuit for detection of cooking utensils. The switching apparatus is arranged in a circuit between the inductor and the inverter and switchable between a first switch position in which a connection between the inverter and the inductor is established and a second switch position in which the connection between the inverter and the inductor is interrupted. In order to allow an energy-saving detection mode, the switching apparatus is connected to the detection circuit such that the switching apparatus connects the inductor to the detection circuit when it is in the second switch position. | 09-29-2011 |
20120074134 | Transverse Flux Electric Induction Heat Treatment of a Discrete Workpiece in a Gap of a Magnetic Circuit - Discrete workpieces move through a longitudinally-oriented through-gap in an open-box rectangular ferromagnetic material. A transverse magnetic flux established in the through-gap inductively heats the discrete workpieces moving through the longitudinally-oriented through-gap. A longitudinal axis of the workpiece or the planar surface of a planarly-oriented workpiece is oriented either parallel to, or perpendicular to, the transverse magnetic flux to heat treat the workpiece. | 03-29-2012 |
20120097665 | DEVICE AND METHOD FOR CONTROLLING ENERGY - A method of irradiating a load comprising providing different amounts of energy at different frequencies by varying respective durations during which corresponding frequencies are transmitted. The method is useful for any form of heating including warming, drying and thawing using microwave and/or RF energy. | 04-26-2012 |
20120111855 | MODULAR INDUCTION HEATER SYSTEM - An electrically conductive physical object, e.g., a rolling-elements bearing, is inductively heated by using a first primary coil around a first core for inducing a first electrical current in the object; and a second primary coil around a second core, different from the first core, for inducing a second electrical current in the electrically conductive material. The first and second primary coils are electrically connected in parallel and the parallel connection is driven from a single switched-mode power supply. | 05-10-2012 |
20120152935 | INDUCTION HEATING APPARATUS - It is an object of the present invention to provide an induction heating apparatus that can enable a plurality of heating coil to perform heating by sharing a inverter having semiconductor switches in use, thereby adjusting a power without increasing losses of the semiconductor switches so much with respect to the respective heating coils, the present invention being configured such that the inverter alternately outputs drive signals respectively having each of two operating frequencies to the plurality of heating coils in every predetermined operation lapse of time and the plurality of heating coils are respectively connected to capacitance circuits in the inverter to have the different frequency characteristics. | 06-21-2012 |
20130008891 | INDUCTION HEATING COOKER - In order to provide an induction heating cooker capable of preventing a phenomenon that a drive circuit is stopped or a high-frequency current is reduced because boiling over is erroneously determined due to a fluctuation in electrostatic capacitance during cooking, the induction heating cooker includes an inverter for supplying a current to a heating coil, a control portion for driving the inverter, an electrostatic capacitance detecting portion for measuring electrostatic capacitance of a plurality of electrodes, and a boiling over detecting portion. The boiling over detecting portion reduces an output of the inverter from a first set value to a second set value after a sensed value of the electrostatic capacitance has reached a range of a first variation (ΔV | 01-10-2013 |
219662000 | Plural load inductors | 13 |
20080302786 | INDUCTION DRYER - In an induction heater, preheated, pressurized air is further heated in the heating cabinet and also drawn into the coil tube via a suction fan. The simultaneous pulling and pushing of the twice-heated air through the tube provides superior air flow to pick up more moisture from the can ends being dried. The tube ends rest on upwardly concave collars and are held in place by gravity, with a single screw acting as a stop above to prevent upward movement. Removal requires only removing the single screw at each end then lifting the tube straight up out of the cabinet, which is facilitated by providing a hinged cover on the cabinet. | 12-11-2008 |
20100282740 | INDUCTION HOB COMPRISING A PLURALITY OF INDUCTION HEATERS - An induction hob having a plurality of induction heating elements; a control unit to operate the plurality of induction heating elements so as to heat at least one flexibly definable heating zone in a synchronized manner; and a measurement array to measure a heating power generated by the plurality of induction heating elements. The measurement array measures a sum of heating powers of at least two induction heating elements and the control unit uses the sum of heating powers to regulate the heating power generated by the plurality of induction heating elements. | 11-11-2010 |
20130248520 | INDUCTION HEATING DEVICE, INDUCTION HEATING METHOD, AND PROGRAM - The purpose of the present invention is to minimize switching losses of an inverter. An induction heating device includes: a plurality of induction heating coils ( | 09-26-2013 |
20130334210 | INDUCTION HEATING COOKER AND CONTROL METHOD FOR SAME - An induction cooker comprises: first and second inverters [[( | 12-19-2013 |
20130334211 | INDUCTION HEATING APPARATUS CAPABLE OF AVOIDING UNSTABLE HEATING DUE TO LIMITATION OF HEATING OUTPUT - When the control unit makes both the first and second inverter circuits operational, the control unit controls the first and second inverter circuits by duty control such that an average heating output from the first inverter circuit reaches a predetermined first target heating output, and an average heating output from the second inverter circuit reaches a predetermined second target heating output. When the control unit makes one of the first and second inverter circuits operational in an automatic heating mode for automatic heating control according to a predetermined heating output sequence, the control unit inhibits the first and second inverter circuits from being controlled by the duty control. | 12-19-2013 |
20130334212 | INDUCTION HEATING DEVICE - An induction heating device includes: a rectifying circuit that rectifies an AC power supply; a smoothing capacitor that smooths the rectified output to obtain a DC power supply; a first and a second inverters each composed of a heating coil, a resonance capacitor, and a switching element, and connected to the smoothing capacitor in parallel; a first and a second oscillating circuits that supply drive signals to the switching elements; and a controller that controls drive of the first and second oscillating circuits. The controller alternately drives the first and second oscillating circuits, and controls a drive time ratio of the first and second oscillating circuits so that a power change amount generated every time the drive is switched between the first and second oscillating circuits is not more than a predetermined amount. | 12-19-2013 |
20130334213 | INDUCTION HEATING COOKER - A conventional induction heating cooker which operates two inverters at the same time, with only one input current detecting circuit provided, cannot measure each of input currents to each of the plurality of inverters, and cannot control input powers by feedback control on input currents. In the induction heating cooker which has a plurality of inverters, when the input power varies to the inverter which has less input power supplied, the variation hardly influences the cooking. The induction heating cooker according to the present invention fixes the operating frequency for the inverter which has less input power supplied and performs the feedback control of the input current for the inverter which has bigger input power supplied. | 12-19-2013 |
20140166641 | POWER SUPPLY DEVICE FOR A HOUSEHOLD APPLIANCE AND AN OPERATING METHOD THEREOF - A power supply device and method for a household appliance is disclosed. The power supply device comprises a switching converter having a rectifying stage, electrically connected with the mains, a bus capacitor, electrically connected in parallel with at least one output terminal of the rectifying stage, a first and second resonant tank, electrically connected with at least a terminal of the bus capacitor, a first and second switching device respectively having a first and second switching period and are connected respectively with the first and second resonant tank. The power supply device further comprises a control means for controlling the first and second switching device. The control means operates at least one of a first switching device independently from the operating conditions of a second switching device. The control means operates the second switching device depending on the operating conditions of the first switching device. | 06-19-2014 |
20140183182 | INDUCTION HEAT COOKING APPARATUS AND METHOD FOR CONTROLLING OUTPUT LEVEL THEREOF - Provided is an induction heat cooking apparatus. The induction heat cooking apparatus includes a rectifying part rectifying an input voltage to output a DC voltage; an inverter switching the DC voltage outputted through the rectifying part to generate an AC voltage; a first heating part operated by the AC voltage applied from the inverter; a second heating part connected to the first heating part in parallel, the second heating part being operated by the AC voltage applied from the inverter; and a switching signal generation part controlling an operation state of each of the first and second heating parts from the inverter according to an operation mode inputted from the outside. The switching signal generation part includes a pulse transformer. | 07-03-2014 |
20140183183 | INDUCTION HEAT COOKING APPARATUS AND METHOD FOR CONTROLLING OUTPUT LEVEL THEREOF - Provided is an induction heat cooking apparatus. The induction heat cooking apparatus includes a rectifying part rectifying an input voltage to output a DC voltage, an inverter switching the DC voltage outputted through the rectifying part to generate an AC voltage, a first heating part operated by the AC voltage applied from the inverter, a second heating part connected to the first heating part in parallel, the second heating part being operated by the AC voltage applied from the inverter, and a switching signal generation part controlling an operation state of each of the first and second heating parts from the inverter according to an operation mode inputted from the outside. The switching signal generation part includes an inverter driver including a bootstrap circuit. | 07-03-2014 |
20140183184 | INDUCTION HEAT COOKING APPARATUS AND METHOD FOR CONTROLLING OUTPUT LEVEL THEREOF - Provided is an induction heat cooking apparatus. The induction heat cooking apparatus includes a rectifying part rectifying an input voltage to output a DC voltage, an inverter switching the DC voltage outputted through the rectifying part to generate an AC voltage, a first heating part operated by the AC voltage applied from the inverter, a second heating part connected to the first heating part in parallel, the second heating part being operated by the AC voltage applied from the inverter, and a switching signal generation part controlling an operation state of each of the first and second heating parts from the inverter according to an operation mode inputted from the outside. The switching signal generation part includes a photo coupler. | 07-03-2014 |
20140251981 | SWITCH CONTROL MODULE WITH PIEZOELECTRIC ELEMENT AND ELECTRIC DEVICE EMPLOYING SAME - A switch control module for an electric device is provided. The switch control module includes a substrate and at least one piezoelectric element. The substrate includes a first surface and a second surface. Moreover, at least one operating area is formed on the first surface. The at least one piezoelectric element is attached on the second surface of the substrate and aligned with the at least one operating area. In response to an external force exerted on the at least one operating area of the substrate, the at least one piezoelectric element is subjected to a deformation. According to an amount of the deformation, a voltage signal is generated to control operations of the electric device. | 09-11-2014 |
20150048080 | METHODS FOR FABRICATION OF THERMOPLASTIC COMPONENTS - A method of fabricating a thermoplastic component using inductive heating is described. The method includes positioning a plurality of induction heating coils to define a process area for the thermoplastic component, wherein the plurality of induction heating coils comprises a first set of coils and a second set of coils. The method also includes controlling a supply of electricity provided to the plurality of inductive heating coils to intermittently activate the coils. The intermittent activation is configured to facilitate prevention of electromagnetic interference between adjacent coils. | 02-19-2015 |
219663000 | Condition responsive | 24 |
20090173732 | INDUCTION HEATING COOKER AND CONTROL CIRCUIT THEREFOR - The invention relates to an induction heating cooker and a control circuit therefor. The cooker includes a switch element and an inductive coil, which is coupled between a power voltage and a first terminal of the switch element. A second terminal of the switch element is coupled to a common voltage. The control circuit includes first and second comparators and a pulse generator. The first comparator receives voltages of two terminals of the inductive coil and thus outputs a trigger signal. The second comparator receives a reference voltage and a voltage of the first terminal of the switch element, and enables a fading signal when the voltage of the first terminal is higher than the reference voltage. When the trigger signal is enabled, the pulse generator outputs a pulse to control the switch element. When the fading signal is enabled, the pulse generator reduces a pulse width of the pulse. | 07-09-2009 |
20110309070 | METHOD AND DEVICE FOR HEATING ACCUMULATOR CELLS - The invention relates to a method for heating accumulator cells of an electrical energy accumulator, at least one first accumulator cell and at least one second accumulator cell being arranged in series. According to the invention, the first accumulator cell and the second accumulator cell alternately feed at least one inductive component which is electrically connected to an intermediate tap between the first and second accumulator cells. The invention also relates to a corresponding device. | 12-22-2011 |
20120097666 | Systems for Operating Multiple Plasma and/or Induction Heating Systems and Related Methods - In some aspects of the invention, a system for operating a plurality of plasma and/or induction heating processing systems includes an operating unit that has a display device on which a graphic user interface can be displayed, at least two power generators that supply power to a plasma process or an induction heating process, and a network that connects the operating unit to the power generators to transmit signals between the operating unit and the power generators. The graphic user interface includes a static region and a dynamic region, and a selection device for selecting information to be displayed in the dynamic region. | 04-26-2012 |
20130008892 | INDUCTION HEATING COOKER AND CONTROL CIRCUIT THEREFOR - An induction heating cooker and a control circuit therefor are provided. The cooker includes a switch element and an inductive coil, which is coupled between a power voltage and a first terminal of the switch element. A second terminal of the switch element is coupled to a common voltage. The control circuit includes first and second comparators and a pulse generator. The first comparator receives voltages of two terminals of the inductive coil and thus outputs a trigger signal. The second comparator receives a reference voltage and a voltage of the first terminal of the switch element, and enables a fading signal when the voltage of the first terminal is higher than the reference voltage. When the trigger signal is enabled, the pulse generator outputs a pulse to control the switch element. When the fading signal is enabled, the pulse generator reduces a pulse width of the pulse. | 01-10-2013 |
20140197160 | SYSTEMS AND METHODS FOR PROTECTING SWITCHING ELEMENTS IN AN INDUCTION HEATING SYSTEM - The present disclosure provides systems and methods for protecting switching elements in an induction heating system. A switching power loss associated with a switching element of the induction heating system can be calculated and an operating frequency of the induction heating system can be adjusted based upon the switching power loss. According to one aspect, the switching power loss can be classified into one of a plurality of threat zones based upon the magnitude of the switching power loss and the operating frequency can be adjusted based upon the threat zone into which the switching power loss is classified. According to another aspect, the switching power loss can be calculated based at least in part on a duty cycle of an output signal. The duty cycle of the output signal can provide an indication of the proximity of the operating frequency of the induction heating system to resonance. | 07-17-2014 |
20150334782 | INDUCTION HEATING SYSTEM TRAVEL SENSOR ASSEMBLY - An induction heating system includes an induction heating head assembly configured to move relative to a workpiece. The induction heating system may also include a temperature sensor assembly configured to detect a temperature of the workpiece and/or a travel sensor assembly configured to detect a position, movement, or direction of movement of the induction heating head assembly relative to the workpiece, and to transmit feedback signals to a controller configured to adjust the power provided to the induction heating head assembly by a power source based at least in part on the feedback signals. In certain embodiments, the induction heating system may also include a connection box configured to receive the feedback signals, to perform certain conversions of the feedback signals, and to provide the feedback signals to the power source. Furthermore, in certain embodiments, the induction heating system may include an inductor stand assembly configured to hold the induction heating head assembly against the workpiece. | 11-19-2015 |
219664000 | Input monitoring | 2 |
20140319128 | Dynamic Power Balancing Among Multiple Induction Heater Power Units - A modular RF power system allows multiple power supplies to combine their RF output power as a single system and deliver it to a common resonant circuit. For flexibility and commonality, each power supply is designed to be separately powered by AC line voltage (aka AC Mains). The AC voltage supplied to each power supply may differ due to differing AC distribution line length, line impedance, wire gauge, or different supply generation locations. | 10-30-2014 |
20160165669 | HIGH-FREQUENCY HEATING DEVICE AND METHOD AND APPARATUS FOR CONTROLLING POWER SUPPLY OF THE SAME - Disclosed is a method for controlling a power supply of a high-frequency heating device, comprising: controlling a switching element of the high-frequency heating device to operate according to a control signal with a preset duty ratio; detecting a real-time current flowing through the switching element; and if the real-time current is greater than or equal to a preset current reference value, controlling the switching element to turn off, and controlling the switching element to turn on when a next turn-on window of the control signal comes. The method may reduce a maximum current during an operation of the switching element, thus reducing requirements for the switching element and enabling an effective over-current protection. Further disclosed is an apparatus for controlling a power supply of a high-frequency heating device and a high-frequency heating device with the apparatus for controlling the power supply. | 06-09-2016 |
219665000 | Load sensing | 16 |
20090084776 | INDUCTION DEVICE FOR A HUMIDIFIER - An induction device for a humidifier includes an backward wave oscillating circuit an emitting induction coil connected to the backward wave oscillating circuit and a control circuit composed of a rectifying filtering circuit, a transmit control circuit and a receiving induction coil and a function unit. The emitting induction coil and the receiving induction coil are positioned very near for effectively interacting to each other so that the control circuit may be activated to work by the voltage generated at two terminals of the receiving induction coil to permit the humidifier function. The function unit is a decorative element. The receiving induction coil receives the electromagnetic field generated by the emitting induction coil, so voltage can be generated at two terminals of the receiving induction coil for driving the control circuit. | 04-02-2009 |
20100230401 | INDUCTION HEATING APPARATUS - An induction heating device includes the following elements: a resonance circuit; a power factor improvement circuit for boosting rectified output, supplying the output to an inverter, and improving the power factor of a commercial alternating current; and a load material detector for detecting the material of the load. The inverter includes switching elements forming a full-bridge circuit. The drive frequency of the switching elements is switched between a frequency substantially equal to an integral multiple of the resonance frequency of the resonance circuit and a frequency substantially 1/n time (n being an integer equal to or larger than two) thereof, according to a detection result of the load material. | 09-16-2010 |
20100288755 | Frequency to Voltage Converter Using Gate Voltage Sampling of Power Oscillator - A frequency-to-voltage (F2V) conversion module includes a pulse shaping module that generates a square wave signal based on an oscillator signal, an edge to pulse conversion module that generates a pulse train based on corresponding rising and falling edges of the square wave signal, and an integrator module that generates an output voltage based on the pulse train. The output voltage is based on a frequency of the oscillator signal. | 11-18-2010 |
20120037616 | POWER INVERTER - A power inverter ( | 02-16-2012 |
20140158680 | CONTACTLESS POWER FEEDER AND CONTACTLESS TRANSMISSION SYSTEM - A contactless power feeder of the present invention includes: a top plate which is mounted with a load; a primary coil which is arranged below the top plate and generates a high-frequency field; an inverter which feeds high-frequency power to the primary coil; a control part which controls the inverter; and a load discriminating part which determines whether the load is an object to be heated that is a metal container such as a pot and should be induction-heated, or a power receiving device provided with a secondary coil that is electromagnetically coupled with the primary coil, wherein the control part is configured to control the inverter in accordance with a result of determination by the load discriminating part. | 06-12-2014 |
20140367376 | METHOD AND ARRANGEMENT FOR PROGRESSIVE SURFACE HARDENING - The invention relates to a method for the progressive induction surface hardening of a closed curve trace of a workpiece, the closed curve trace and a hardening device being moved relative to one another in a feed mode to harden the closed curve trace starting from an initial zone to an end zone, an unhardened soft zone being provided. According to the invention, the workpiece is provided with a marking, the hardening device having a sensor for detecting said marking. The curve trace and the hardening device are moved relative to one another along the treatment direction until the senor detects the marking. Once the marking is detected, another movement takes place in the treatment direction before the hardening device is activated, the curve trace being hardened by the relative movement. The marking is again detected by means of the sensor and the hardening device is then deactivated. The invention also relates to an arrangement which is suitable for carrying out the method described. | 12-18-2014 |
219666000 | With tuning | 3 |
20140151367 | Dual Edge Phase Detector and Tuning Method That Uses Same - A tuning system for controlling a voltage controlled oscillator is described herein. The tuning system makes use of a dual edge phase detector. | 06-05-2014 |
20140183185 | TUNED POWER AMPLIFIER WITH LOADED CHOKE FOR INDUCTIVELY HEATED FUEL INJECTOR - A tuned power amplifier includes: a tuning capacitor connected in series with a loaded choke that represents an inductance of an oscillator, and a semiconductor power switch connected to the series connection between the tuning capacitor and the loaded choke. The loaded choke may be an induction heating coil of an inductively heated fuel injector. The induction heating coil or the tuning capacitor may be connected to a voltage source. An on state and an off state of the semiconductor power switch may be synchronized with, or at a frequency below, a natural resonant frequency of the tuned power amplifier. | 07-03-2014 |
20160014850 | SYSTEMS AND METHODS FOR CONTROL OF A WORKPIECE HEATING SYSTEM | 01-14-2016 |
219667000 | Temperature | 7 |
20100084395 | METHOD FOR CONTROLLING A STATIC POWER CONVERSION UNIT AND INDUCTION HEATING SYSTEM FOR COOLING APPLIANCES USING SUCH METHOD - In a method for controlling a static power conversion unit to an inductor, particularly for an induction system used in cooking appliances, the value of an electrical parameter of the circuit is monitored at predetermined time intervals and at a predetermined duty cycle of the power transistor switching frequency, and on the basis of the monitored value, the duty cycle is modulated accordingly between the predetermined time intervals in order to keep the delivered power at a predetermined constant value. | 04-08-2010 |
20140076887 | Induction Heated Hair Styling Appliances And The Heating Unit Therefor - The present invention provides an induction heating unit for heating up a hair styling appliance. The induction heating unit comprises a container defining a well that is surrounded by an induction coil winding, a controller electrically connected to the induction coil winding to operationally control a heating power; and a sensor plug disposed at the bottom on the well, the sensor plug adapted for coupling with a sensor socket on the hair styling appliance to detect at least temperature of the hair styling appliance through a temperature sensor, wherein the controller operationally controls a heating power based at least on the temperature detected through the temperature sensor. A method of heating up a hair styling appliance is also provided. | 03-20-2014 |
20140238978 | NON-CONTACT POWER RECEIVING DEVICE AND NON-CONTACT POWER TRANSMISSION DEVICE - In a non-contact power transmission device according to the present invention, a non-contact power receiving device includes a changeover portion for opening and closing the connection between a power receiving coil and a load device which is supplied with electric power from the power receiving coil, the power receiving coil being adapted to output electric power by receiving a high-frequency magnetic field from an induction heating apparatus used as a feeding apparatus, wherein a power-reception-side control portion for controlling opening/closing operations of the changeover portion is adapted to control the opening/closing operations of the changeover portion, in order to adjust the electric power supplied to the load device from the power receiving coil. | 08-28-2014 |
20150034630 | INDUCTION COOKING DEVICE FOR TEMPERATURE-CONTROLLED COOKING - A modular heat-retaining system for keeping food warm. The system contains a plurality of induction heat retaining units, each of which forms a heat-retaining area, and further contains a common power and control unit having a common power controller and a plurality of connection interfaces for individually connecting and individually activating the induction heat-retaining units. In addition, the heat-retaining system contains one or more operating units, wherein the induction heat-retaining units contain at least one induction coil as part of an induction resonant circuit for generating an alternating magnetic field. The power and control unit contains control means for individual activation of the induction heat-retaining units. | 02-05-2015 |
20150334780 | INDUCTION HEATING SYSTEM - An induction heating system includes an induction heating head assembly configured to move relative to a workpiece. The induction heating system may also include a temperature sensor assembly configured to detect a temperature of the workpiece and/or a travel sensor assembly configured to detect a position, movement, or direction of movement of the induction heating head assembly relative to the workpiece, and to transmit feedback signals to a controller configured to adjust the power provided to the induction heating head assembly by a power source based at least in part on the feedback signals. In certain embodiments, the induction heating system may also include a connection box configured to receive the feedback signals, to perform certain conversions of the feedback signals, and to provide the feedback signals to the power source. Furthermore, in certain embodiments, the induction heating system may include an inductor stand assembly configured to hold the induction heating head assembly against the workpiece. | 11-19-2015 |
20150334781 | INDUCTION HEATING SYSTEM TEMPERATURE SENSOR ASSEMBLY - An induction heating system includes an induction heating head assembly configured to move relative to a workpiece. The induction heating system may also include a temperature sensor assembly configured to detect a temperature of the workpiece and/or a travel sensor assembly configured to detect a position, movement, or direction of movement of the induction heating head assembly relative to the workpiece, and to transmit feedback signals to a controller configured to adjust the power provided to the induction heating head assembly by a power source based at least in part on the feedback signals. In certain embodiments, the induction heating system may also include a connection box configured to receive the feedback signals, to perform certain conversions of the feedback signals, and to provide the feedback signals to the power source. Furthermore, in certain embodiments, the induction heating system may include an inductor stand assembly configured to hold the induction heating head assembly against the workpiece. | 11-19-2015 |
20150334783 | INDUCTION HEATING SYSTEM CONNECTION BOX - An induction heating system includes an induction heating head assembly configured to move relative to a workpiece. The induction heating system may also include a temperature sensor assembly configured to detect a temperature of the workpiece and/or a travel sensor assembly configured to detect a position, movement, or direction of movement of the induction heating head assembly relative to the workpiece, and to transmit feedback signals to a controller configured to adjust the power provided to the induction heating head assembly by a power source based at least in part on the feedback signals. In certain embodiments, the induction heating system may also include a connection box configured to receive the feedback signals, to perform certain conversions of the feedback signals, and to provide the feedback signals to the power source. Furthermore, in certain embodiments, the induction heating system may include an inductor stand assembly configured to hold the induction heating head assembly against the workpiece. | 11-19-2015 |