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US 2014/0112024 A1Published application
High voltage switching linear amplifier and method therefor
AssigneeMicrochip Technology Incorporated
InventorJimes Lei
Life of this patent
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Abstract
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.
Claims18
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.
2 more elements
A switching linear amplifier comprising:
- a charge pump to increase a low input DC voltage source for supplying a higher DC voltage for a gate driver;
- a DC-DC converter to increase a low input DC voltage to a first high voltage DC and coupled to the charge pump to provide adequate gate drive voltage for increased efficiency;
- a high voltage high frequency inverter coupled to the DC-DC converter to generate high voltage pulses, wherein the high voltage high frequency inverter generates two outputs, wherein the two outputs are approximately 180 degrees out of phase with respect to each other;
- 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.
3 more elements
Dependencies are inferred from the claim text.