| 摘要 |
FIELD: voltage regulation circuits used in manufacture of chip-carrying card integrated circuits. ^ SUBSTANCE: proposed circuit has series regulator L with field-effect transistor M1. Series-connected between source lead placed at higher potential VDDext and gate lead M1 are capacitor C1 and second field-effect transistor that functions as transmitting gate TG1 controlled by power/reset signal POR. Applying external supply voltage VDDext with series-connected transmitting gate TG1 drives in conduction field-effect transistor M1 in compliance with charge of capacitor C1 that takes place in the process. As this charge takes certain time, overshoot of internal voltage VDDint can be avoided. ^ EFFECT: reduced degree of overshoot when driving transistor in conduction. ^ 3 cl, 5 dwg |
