High-voltage modulator system

摘要

A high-power modulation system includes drive circuitry that receives input signals from the signal source via a series of transformers. The drive circuitry amplifies the input signals and provides the resulting amplified signals to the high-power switch. A storage capacitor within the drive circuitry stores energy derived from the input signals, and the stored energy is used to power the drive circuitry. One embodiment takes advantage of inductive ringing to more rapidly turn off the high-power switch. A diode connected in series between two drive transistors rectifies the ringing signals, pulling a control signal to the high-power switch negative.