| 摘要 |
An output driver for providing a gate voltage to an external positive-channel field-effect transistor (PFET) device. A capacitor accumulates charge which, upon switching by an input switching signal, is applied, in addition to the supply voltage, to the base of a drive circuit NPN transistor to rapidly pull the PFET gate voltage, derived at the emitter of the drive circuit NPN transistor, up to the supply voltage. An active voltage limiter, coupled in parallel with the drive circuit, limits excursion of the gate voltage with respect to the supply voltage.
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