Richtek Technology Corporation

Po-Shun Chung

Kwan-Jen Chu

Chung-Lung Pai

Jing-Meng Liu

Liang-Pin Tai

Chun-Tsung Chen

Chin-Chiang Yeh

A pulse width modulation (PWM) Regulator System with automatically switching pulse skipping mode (PSM) is disclosed. The PWM regulator system comprises a PWM regulator, a PSM switching module and a pulse generator. The PWM regulator converts the input voltage by PWM. The PSM switching module determines to enter or exit the PSM. The pulse generator adaptively produces pulse signal for the switching regulator to operate in PSM.

Pulse width modulation regulator system with automatically switching pulse skipping mode

A direct current voltage boosting/bucking device includes a direct current voltage boosting circuit and a low drop-out (LDO) linear voltage converting circuit. The direct current voltage boosting circuit boosts an input voltage so as to generate an output voltage higher than the input voltage. The LDO linear voltage converting circuit converts the output voltage into a load voltage that is to be provided to a load, and controls the direct current voltage boosting circuit in accordance with a feedback signal from the load such that the output voltage and the load voltage have a minimum drop-out voltage differential therebetween and such that current flow through the load is maintained at a determined level.

Direct current voltage boosting/bucking device

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Taichung, Taiwan

Po-Shun Chung