FEELING TECHNOLOGY CORP. Patent applications |
Patent application number | Title | Published |
20140339921 | Light Load Current Detection System - A light load current detection system including a detection process module and a control circuit is provided for detecting a current value of a light load current of a load in a light load mode; the detection process module including a power save unit and a voltage detection module. The power save unit sends a power save signal, wherein a cycle of the power save signal corresponds to a switch state. The voltage detection module detects an input voltage value to generate and output a detection signal. The control circuit includes a data table and a threshold, the data table showing a relation among the cycle, the current value and the input voltage value. The control circuit determines if the current value reaching the threshold, the switch is turned off in the light load module. | 11-20-2014 |
20140327094 | SEMICONDUCTOR STRUCTURE FOR ELECTROMAGNETIC INDUCTION SENSING AND A METHOD OF MANUFACTURING THE SAME - A semiconductor structure for electromagnetic induction sensing and a method for manufacturing the same are provided: forming the Hall sensor in a first semiconductor fabrication; forming the passivation layer above the Hall sensor to cover the Hall sensor according to the first semiconductor fabrication; and forming the current-carrying layer above the passivation layer in a second semiconductor fabrication to form the semiconductor structure for electromagnetic induction sensing. The current-carrying layer carries the current to be sensed; and the Hall sensor senses the magnetic field generated. The Hall sensor generates a voltage or a current signal proportional to the strength of the current to be sensed. | 11-06-2014 |
20140167681 | CURRENT REGULATION SYSTEM - A current regulation system for generating a charging current curve for charging a rechargeable battery is provided, the system including a current regulation module coupled to a power converter to output a conversion current in a constant current mode and a constant voltage mode, a voltage-to-current regulation module coupled to the rechargeable battery to output a voltage conversion current in the constant voltage mode, a temperature-to-current regulation module and a resistance. The temperature-to-current regulation module outputs a temperature conversion current in the constant current mode and the constant voltage mode. The resistance is coupled to the current regulation module, the voltage-to-current regulation module and the temperature-to-current regulation module to regulate the voltage conversion current or the temperature conversion current, the conversion current is weakened by maintain a constant value so the charging current curve is regulated when the power of the rechargeable battery is full. | 06-19-2014 |
20140062367 | DETECTION CONTROL SYSTEM - A detection control system includes a sensing unit, a control module and a driving module for a motor including a rotor and a stator. The sensing unit electrically connects the motor to sense a first and a second magnetic pole of the rotor cross a chip disposed between the rotor and the stator; a third magnetic pole is alternated to a forth magnetic pole of the stator to generate a sensing signal. A detection unit of the control module detects a kickback voltage value generated by a first current value changing to a second current value to calculate a minimum current value to generate a detecting signal. A timing unit receives the sensing and the detecting signal to calculate a first and a second period of time, and a discharging time. The driving module drives the rotor by receiving a control signal the control unit generates by controlling an alternating time. | 03-06-2014 |
20110153041 | CONNECTION SYSTEM - The connection system of the present invention includes a human-machine interface device and a host device. The human-machine interface device includes a signal generating module and a control module. The host device includes an operation module, an identification module and a system module. After the signal generating module generates an original working signal, the original working signal is sent to the operation module to generate a transforming signal via control module, and then the operation module sends the transforming signal back to the control module such that the control module generates a final working signal meeting an identification condition. Finally, the control module sends the final working signal to the identification module for identification such that the system module executes a predetermined work. | 06-23-2011 |
20110022858 | CONTROL CIRCUIT FOR POWER SUPPLYING - The control circuit for power supplying includes a driving module and a control module, wherein the driving module includes a first switch, a second switch, a third switch, and a fourth switch. In a first power supply mode, the first switch and the second switch are turned on, and the third switch and the fourth switch are turned off. The load current flows to the ground terminal via the first switch, the inductive load, and the second switch. When the control module sends a switching signal to the driving module, the first switch and the second switch are turned off and the third switch and the fourth switch are turned on, and the load current flows to the high potential terminal via the fourth switch, the inductive load, and the third switch due to the current inertia. | 01-27-2011 |
20090257740 | Switching Regulation Circuit and Dual-Winding Motor Apparatus - A switching regulation circuit for a dual-winding motor apparatus is provided. The switching regulation circuit comprises a gate-controlled device and a driving circuit. When one of the two windings generates an induced voltage signal greater than a threshold value, the driving circuit generates an output signal for turning on the gate-controlled transistor. Thereby, a parasitic diode of the gate-controlled device will not be turned on and damage the entire circuit. | 10-15-2009 |
20090179603 | Control Apparatus for Starting a Direct Current Brushless Motor and Method Thereof - An apparatus for starting a direct current brushless motor and a method thereof are provided. The direct current brushless motor comprises a plurality of windings. The control apparatus comprises a sense amplifier, a differential circuit, and a control circuit. The sense amplifier is configured to detect a first back electromotive force of a non-electrified first winding. The differential circuit is configured to calculate a differential value of the first back electromotive force. The control circuit is configured to provide a current to two of the windings and to switch the current to another two of the windings to start the direct current brushless motor. | 07-16-2009 |
20090174355 | Starting Apparatus for a Direct Current Brushless Motor and Method Thereof - A starting apparatus for a direct current (DC) brushless motor and a method thereof are provided. The DC brushless motor comprises a plurality of windings presenting a joint connection via a common connection. The starting apparatus provides current to two of the three windings and rotates the DC brushless motor to obtain a Back Electro-Motive Force (BEMF) from the floating winding. Then, the starting apparatus provides a current to another two windings to operate the motor according to the variation of BEMF induced by the swing of the motor when it rotates to a static equilibrium point. | 07-09-2009 |
20090167226 | Method for Controlling a Direct Current Brushless Motor, and Control Circuit - A method for controlling a direct current (DC) brushless motor, and a control circuit thereof are provided. The DC brushless motor is sensorless. In response to a digital output signal that is applied to drive the direct current brushless motor, detection of a back electromotive force (BEMF) is ceased in a predetermined time interval, so as to avoid detecting erroneous BEMF and keep normal operation of the direct current brushless motor. | 07-02-2009 |