High voltage switching linear amplifier and method therefor

摘要

A switching linear amplifier has a DC-DC converter to increase a low input DC voltage to a first high voltage DC. A high voltage high frequency inverter is coupled to the DC-DC converter to generate high voltage pulses. A multistage voltage multiplier is coupled to the high voltage high frequency inverter to generate a second high voltage DC. A controlled charge and discharge circuit is coupled to the multistage voltage multiplier to drive a capacitive load.

主权项

1. A switching linear amplifier comprising:
a DC-DC converter to increase a low input DC voltage to a first high voltage DC; a high voltage high frequency inverter coupled to the DC-DC converter to generate high voltage pulses; a multistage voltage multiplier coupled to the high voltage high frequency inverter to generate a second high voltage DC; and a controlled charge and discharge circuit coupled to the multistage voltage multiplier to drive a capacitive load; wherein the controlled charge and discharge circuit comprises: a first series stacked N-channel MOSFETs with balancing resistors for a controlled charge; and a second series of stacked N-channel MOSFETs with balancing resistors for a controlled discharge.