Ememory Technology Inc.

Lin-Fwu Chen

Shao-Chang Huang

Wen-Hao Lee

Wei-Yao Lin

Tang-Lung Lee

Kun-Wei Chang

Luan-Yi Yen

Yu-Chun Chang

A high-voltage selecting circuit generates an output voltage with no voltage drop by means of an auxiliary NMOS transistor turning on the corresponding selecting PMOS transistor of the high-voltage selecting circuit when the voltage levels of a first input voltage and a second input voltage are equal. In addition, when one of the first input voltage and the second input voltage is higher than the other one, the high-voltage selecting circuit avoids the leakage current by means of an auxiliary PMOS transistor turning off the corresponding selecting PMOS transistor of the high-voltage selecting circuit. In this way, the high-voltage selecting circuit can correctly generate the output voltage according to the first input voltage and the second input voltage, and avoid the leakage current at the same time.

High-voltage selecting circuit which can generate an output voltage without a voltage drop

Growing community of inventors

Hsinchu County, Taiwan

Lin-Fwu Chen