Class / Patent application number | Description | Number of patent applications / Date published |
307033000 | Constant magnitude control | 15 |
20090021076 | DC CONVERTER - A DC converter is connected to a DC source on its input side. On the output side, the DC delivers a converted DC voltage to at least one electric consumer via a cable connection. To improve such a DC converter in that it has a comparatively simple structural design and is able to reliably convert high DC voltages even in the case of high power, and in such a way that the reliability of the converter is increased and cooling systems entailing high costs can be dispensed with, the DC converter comprises a plurality of DC converter components, each of said DC components being, on the input side, serially connected to the DC source and, on the output side connected in parallel to the cable connection so as to provide the converted DC voltage for the electric consumer. | 01-22-2009 |
20090167086 | SYSTEM, METHOD AND APPARATUS FOR PROVIDING DIRECT CURRENT - A system and method for providing direct-current power is described. In one embodiment a direct current voltage is converted into at least two regulated DC voltages, and a first of the at least two regulated DC voltages is applied across a first and second outputs and a second of the at least two regulated DC voltages is applied across the second output and a third output. And when a first impedance across the first and second outputs is less than a second impedance across the second and third outputs, current is received via the second output while delivering power to the first and second impedances. | 07-02-2009 |
20090206664 | Power supply circuit - Provided is a power supply circuit generating a desired voltage by voltage multiplication, and satisfying both a demand to reduce current consumption and a demand to enable operation with a low power voltage at the same time. A power supply circuit of the present invention includes: a voltage generating circuit for generating internal voltages VI | 08-20-2009 |
20090309417 | Method and System For a Multiple Output Capacitive Buck/Boost Converter - Methods and systems for a multiple output capacitive buck/boost converter are disclosed and may include charging one or more input capacitors via an input voltage. One or more output voltages may be generated on a chip by switching the charged input capacitors to output capacitors via a switch array on the chip. The switch array may be controlled via a state machine. A constant current and/or voltage may be generated for the one or more output voltages via one or more current and/or voltage comparators. A variable resistance may be coupled in series with one or more switches in the switch array. The one or more input capacitors may be discrete capacitors external to the chip and/or integrated within the chip. One or more of the output voltages may be greater than the input voltage, or may be less than the input voltage. | 12-17-2009 |
20100013307 | Active Droop Current Sharing - Point-of-load (POL) regulators may be configured as multiphase POL DC-to-DC (direct current to direct current) converters, operating in a multiphase configuration in order to boost the total current available to a system. Current balancing may be performed by utilizing an active low bandwidth current sharing algorithm that uses matched artificial line resistance (droop resistance) while maintaining multi-loop stability during both steady-state and dynamic transient states. The current sharing algorithm may be facilitated through digital communication between the devices, where the digital bus may be a single wire bus, a parallel bus or a clock-and-data bus. | 01-21-2010 |
20110309679 | Mult-Use Voltage Regulator - Embodiments for at least one method and apparatus of a multi-use voltage regulator providing a supply voltage to a power amplifier and at least one other device are disclosed. One method includes generating a plurality of regulated voltage supplies from an unregulated voltage. An output signal power level of the power amplifier is determined. A one of the regulated plurality of voltage supplies and the unregulated voltage supply is selected as a power amplifier voltage supply for the power amplifier based at least in part on the output signal power level of the power amplifier. If the selected power amplifier voltage supply is one of the plurality of regulated voltage supplies, then the selected one of the plurality of regulated voltage supplies is simultaneously provided to the power amplifier and the at least one other device. | 12-22-2011 |
20120086271 | MULTI-OUTPUT POWER SUPPLY DEVICE - A method of controlling a plurality of output voltages in a multi-output power supply device for generating a plurality of output powers by using a transformer. The method includes, if a system to which power is supplied from the multi-output power supply device is in a standby mode, blocking any one of at least two output powers of a secondary side of the transformer, wherein the blocked power is supplied to the system; and compensating for a resistance of a feedback circuit connected to a switching controller of a power switch of a primary side of the transformer in relation to one or more unblocked output powers of the transformer and maintaining the output of the unblocked output power to be constant. | 04-12-2012 |
20130181522 | Power Management Control Circuit - A power management control circuit controls a first power transistor to convert a input voltage to an output voltage and controls a second power transistor to charge a battery from the output voltage. The first power transistor is coupled between the input voltage and the output voltage, and the second power transistor is coupled between the output voltage and the battery. The power management control circuit includes: a detection transistor detecting a current through the second power transistor and generating a charging reference voltage; an amplifier comparing the output voltage with the voltage of the battery to generate an amplified signal for controlling the charging reference voltage; a comparator comparing a reference voltage with the charging reference voltage to generate an EOC (End of Charge) signal for determining whether to stop charging the battery; and an offset voltage compensation device compensating an input offset voltage of the amplifier. | 07-18-2013 |
20130278062 | LIGHT ADJUSTING CIRCUIT - A light adjusting circuit, it provide power required for an overall operation of light adjusting circuit, and it utilizes a light adjusting controller to perform light adjusting of load. During light adjusting, in case operating voltage of a driving controller is equal to or greater than a threshold value, then a rectifier or a power controller provides a first power supply to driving controller through an AC voltage adjusted by light adjusting controller, so that it can regulate a driving voltage through power controller based on DC voltage variation, to drive a load. Otherwise, in case operating voltage of driving controller is less than threshold value, it is switched to a battery to provide a second power supply to driving controller, to make it have stable operating voltage, control power controller to output driving voltage to load, to eliminate blinking of load when conduction angle is small. | 10-24-2013 |
20160064928 | SYSTEM AND METHOD FOR CONTROL OF MULTIPLE VOLTAGE REGULATORS - A power control system provides multiple supply voltages that are guaranteed not to violate boundary conditions regardless of the timing of voltage change commands. A first voltage (V | 03-03-2016 |
307034000 | By control of one or more load circuits | 5 |
20090121547 | SYSTEM AND METHOD FOR ALLOCATING POWER TO LOADS - A system and method for adaptive control of power among a plurality of loads based on a categorization of the loads as either delayable or non-delayable, wherein the non-delayable loads are preferably supplied power over the delayable loads. In one aspect, the system may be used to allocate limited power from a backup power source. | 05-14-2009 |
20110181113 | FUEL CELL SYSTEM AND POWER MANAGEMENT METHOD THEREOF - A fuel cell system including a fuel cell power generator, a first state detecting unit, an electronic load circuit, an external load power supply circuit, a secondary battery, a charge module, and a control unit is provided. The first state detecting unit detects an output voltage and an output power of the fuel cell power generator. The electronic load circuit performs a current-sinking operation on the fuel cell power generator. The external load power supply circuit receives a power from the fuel cell power generator and supplies the power to an external load. The control unit controls the current-sinking operation of the electronic load circuit according to the detection result of the first state detecting unit, so as to adjust the output voltage of the fuel cell power generator and enable at least one of the electronic load circuit, the charge module, and the external load power supply circuit. | 07-28-2011 |
20130154373 | PRIMARY UNIT CONTROL OF RESONANT INDUCTIVE POWER TRANSFER SYSTEM FOR OPTIMUM EFFICIENCY - A circuit and method for wirelessly coupling an electrical energy between an electrical energy source and at least one load is provided. The circuit comprises a primary unit and at least one secondary unit. The primary unit includes an input node for receiving an input voltage produced by the energy source; a transmitter circuit including a transmitter coil configured to generate an electromagnetic field; and a regulator. The regulator is configured to sense a current consumption of the primary unit, determine a gradient of the current consumption with respect to different input voltages, and determine an optimal input voltage based on the gradient. The at least one secondary unit comprises a receiver circuit and a load. The receiver unit includes a coil that wirelessly and inductively couples with the electromagnetic field of the primary unit to receive power therefrom. The receiver unit further includes a regulator circuit configured to provide a constant power to an output node. | 06-20-2013 |
20140375128 | STABILIZING A DC ELECTRICITY NETWORK - A method of stabilizing a DC electricity network, the network including a DC voltage source powering electrical loads that are connected in parallel to terminals of the voltage source and each of which is to receive a current or voltage setpoint. The method stabilizes the network by regulating setpoints applied to the loads by a virtual stabilization impedance generated at terminals of each load, the virtual impedances being dimensioned to stabilize the network in desired operating points and in given configurations of the network including a state in which at least one load is inactive or has failed and a state in which the stabilization of a load is inactive. Each virtual impedance is generated by a non-linear regulation loop acting on the setpoint for the corresponding load. | 12-25-2014 |
20150357823 | MULTIPATH CURRENT SOURCE SWITCHING DEVICE - The present disclosure discloses a multipath current source switching device, including a switching control unit, N current paths, and N loads. Each current path is formed by a constant current source circuit and a switching circuit. One terminal of a first load is coupled to a load power supply, and the other terminal of the first load is coupled to an output terminal of a constant current source circuit of a first current path and one terminal of a second load; one terminal of an i | 12-10-2015 |