Patent application number | Description | Published |
20100060401 | INDUCTOR AND INDUCTOR COIL - An inductor includes a ferromagnetic core, an inductor coil, and a holder. The inductor coil is coiled to form one or more loops around a center. The inductor coil defines a through hole surrounded by an innermost loop to fit about the ferromagnetic core. The holder is configured for holding the ferromagnetic core with the inductor coil. Two ends of the inductor coil protrude out of the holder. | 03-11-2010 |
20100103708 | POWER SUPPLY SAVING SYSTEM FOR AN ELECTRONIC DEVICE - A power supply saving system includes a power input interface, a power output interface, an alternating current/direct current (AC/DC) converter, a relay, a relay driving circuit, a trigger, and a timing sequence circuit. The AC/DC converter is capable of transforming the AC power signal to direct current (DC) power to supply to the relay, the relay driving circuit, the trigger, and the timing sequence circuit. The timing sequence circuit is capable of controlling the relay driving circuit via the trigger to turn on the relay to connect the power input interface to the power output interface when the timing sequence circuit receives a power-on signal. The timing sequence circuit is capable of controlling the relay driving circuit via the trigger to turn off the relay to cut off connection between the power input interface and the power output interface when the timing sequence circuit receives a power-off signal. | 04-29-2010 |
20100181664 | INTEGRATED CIRCUIT CHIP PACKAGE MODULE - An integrated circuit (IC) package module includes a carrier, an IC chip, a number of wires, a number of pins, a seal member, and a thermal conductor. The IC chip is attached on a top surface of the carrier. The number of pins is connected to the IC chip via the number of wires. The seal member contains the carrier, the IC chip, and the number of wires. The thermal conductor is located over or located on a top surface of the IC chip. Parts of each of the number of pins and the thermal conductor are projected out of the seal member. | 07-22-2010 |
20100181976 | MULTI-PHASE DRIVING CIRCUIT - A multi-phase driving circuit includes a single-phase pulse-width modulation (PWM) controller, a number of drivers, and a number of switch circuits connected to the number of drivers correspondingly. The single-phase PWM controller is configured for providing a single-phase PWM signal. Each of the number of drivers receives the single-phase PWM signal and adjusts a phase of the single-phase PWM signal to output an adjusted PWM signal. Each of the number of drivers also outputs a driving signal. Each of the number of switch circuits receives the adjusted PWM signal and the driving signal from a driver. Each of the number of switch circuits generates a driving voltage controlled by the driving signal and adjusts a phase of the driving voltage controlled by the adjusted PWM signal and then outputs the adjusted driving voltage, so as to make the number of switch circuits output a multi-phase driving voltage to a load. | 07-22-2010 |
20100284206 | POWER ADAPTER AND POWER SUPPLY METHOD THEREOF - A power adapter for an electronic device selectively works in different modes according to a working state signal of the electronic device. When the electronic device is powered off or on with a battery in a determined charge state, the power adapter controls a relay to turn off the relay to disconnect power to the electronic device. | 11-11-2010 |
20130021010 | DIGITAL PULSE WIDTH MODULATION CONTROLLER FOR POWER MANAGEMENT - A digital pulse width modulation (PWM) controller is used for controlling the operating voltage of an electrical load and includes a setting module, a storage module and a control module. The setting module generates control parameters corresponding to different preset load currents and load voltages of the electrical load. The storage module stores the control parameters and the prestored load current and load voltage. The control module is in electronic communication with the storage module, and detects current load voltage and current load current of the electrical load, and compares the current load voltage and load current with the prestored load voltage. Thus, the control module can output the control parameters which are necessary to stabilize the operating voltage of the electrical load, by comparison with stored data. | 01-24-2013 |
20130076334 | SELECTABLE PHASE POWER SUPPLY SYSTEM - A power supply system to provide power for a central processing unit (CPU) includes a bridge circuit, a pulse width modulation (PWM) controller and a pulse adjusting driver circuit. The bridge circuit detects a work state of the PWM controller to obtain a feedback signal output from the PWM controller, and provides the feedback signal to the CPU. The CPU outputs a control signal to the bridge circuit according to a work state of the CPU and the feedback signal, and the bridge circuit outputs a PWM signal to the pulse adjusting driver circuit according to the control signal. The pulse adjusting driver circuit receives a first driving signal provided by an external circuit, and adjusts the first driving signal according to the PWM signal to generate at least one second driving signal to drive the CPU. | 03-28-2013 |
20130086575 | APPLICATION BURNING DEVICE FOR POWER PWM CONTROLLERS AND APPLICATION BURNING METHOD - An application burning device and at least one power PWM controller are mounted on a main board. The device includes a processor and a storage unit storing applications to be burned to the at least one power PWM controller. The processor determines whether there is a power PWM controller not burned yet, and burns a corresponding application to the controller. A related application burning method is also provided. | 04-04-2013 |