Micro-star Int'l Co., Limited.

Chien-Chi Hsu

Meng-Feng Chen

Chih-Sheng Li

Chien-Fa Chuang

Fu-Kang Cheng

Guo-Yang Wu

Yung-Kuang Lee

Wen-Chi Hsieh

Chih-Sheng Lee

In prior arts, additional pulse-width modulators and more costs are needed for increasing the current output. The invention provides a synchronized parallel running power converter. The power converter includes multiple power converters controlled by single-phase or double-phase pulse-width modulators. Each power converter includes a first pulse input port, a second pulse input port and a current output port. Each first pulse input ports are coupled, and each second pulse input ports are coupled also, so that each power converter is controlled by the same pulse signal and provide a same output current to be added as several times of current output.

Synchronized parallel running power converter

An inductor module includes a common inductor core, and first and second inductor windings. Each of the first and second inductor windings has an input end, an output end, and an inductor winding section disposed between the input and output ends. The inductor winding sections are wound on the common inductor core such that the distance between the input end of the first inductor winding and the output end of the second inductor winding is larger than the distance between the output end of the first inductor winding and the input end of the second inductor winding. The output end of the first inductor winding is free of an electrical connection with the input end of the second inductor winding.

Inductor module including inductor windings wound on a common inductor core

A power converter module includes a wave generator, a rectifier, and a switch controller. The rectifier includes first and second power switches, and an LC circuit. The switch controller is coupled electrically to the wave generator and control terminals of the first and second power switches, and includes a control coil coupled electromagnetically to an inductor coil of the LC circuit. The switch controller can turn the first power switch on and off periodically in response to a periodic output of the wave generator, and can ensure that the second power switch is turned off when the first power switch is turned on, and that the second power switch is turned on when the first power switch is turned off.

Power converter module with an electromagnetically coupled inductor for switch control of a rectifier

An inductor module includes a common inductor core and an inductor winding. The inductor winding includes a plurality of inductor winding sections, each of which has a first end and a second end, and each of which is wound on the common inductor core. The inductor winding further includes a common contact interconnecting the second ends of the inductor winding sections.

Inductor module including plural inductor winding sections connected to a common contact and wound on a common inductor core

A power-off protection device. The device outputs operating power according to a first level signal and a second level signal, and comprises a processor, a modulating circuit, a power generating circuit, and a reference-voltage maintenance device. The processor outputs a voltage modulating signal. The circuit is coupled to the processor and the first level signal to output a voltage control signal responding to the voltage modulating signal. The power generating circuit is coupled to the second level signal and the modulating circuit for generating operating power from the second level signal according to the voltage control signal. The reference -voltage maintenance device is coupled to the first level signal and the modulating circuit to delay the drop time of the first level signal to confirm that the first level signal is higher than the second level signal when the first level signal and the second level signal are turned off.

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Chung-Ho, Taiwan

Chien-Chi Hsu