O2micro International Limited

02 Micro International Limited

Chun-Hsi Lin

Footshen Wong

Han-Jung Kao

Chih-Lang Lin

Mingkwang Han

Chen-Hsiang Yu

Winson Wong

Vlad Popescu-Stenesti

Shih-Chun Chen

ShyhShin Lee

Chien Kung

A power supply topology with pulse width modulation frequency control allows the use of an inductor with higher inductance in a converter. By controlling the switching frequency of the pulse width modulation signal, the inductor can achieve high efficiency during a light load condition and is also suitable for a heavy load condition.

Power supply topologies with PWM frequency control

A method for using a single pin to support both power input and power control functions for an integrated circuit, wherein the integrated circuit is in communication with a system. The method includes receiving at the pin a power input signal from the system, generating a power control signal based on the power input signal through a control signal generating circuit, and sending the power control signal to the integrated circuit.

Single pin for multiple functional control purposes

The present invention provides a test card for multiple functions testing. The test card includes a host of media devices, all of which reside on a single printed circuit board; and a selection device which selects each one of the host of media devices for testing. The test card can test all SD, MMC, MS (Pro), SMC devices and functions in one time in a bench without inserting and removing the media devices, thus accelerates the production line test speed.

Test card for multiple functions testing

Growing community of inventors

Yi-Lan Shien, Taiwan

Chun-Hsi Lin