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

作者: Kun-Wei Chang , Shao-Chang Huang , Lin-Fwu Chen , Tang-Lung Lee , Luan-Yi Yen

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