Design of Fast Response High-Voltage Power Supply for the Electrostatic Deflection System in a Low-Energy Particle Spectrometer
2021
A fast response high-voltage power supply for the electrostatic deflection system in a low-energy particle spectrometer is designed. The high-voltage power supply uses high-voltage optocouplers as the core amplifying devices, and the output stage is a two-arm push-pull amplifier composed of two high-voltage optocouplers. The experimental results show that the high-voltage power supply can output either positive or negative voltage from the same output port, and the output voltage range is from −3 kV to +3 kV, which can meet the demand of the electrostatic deflection system for the bipolar voltage supply. The adjustment speed of the output voltage is fast. The time of voltage rise or fall does not exceed 1.7 ms, which can speed up the scanning speed of the spectrometer and improve the time resolution. The output stage adopts a push-pull amplification structure, which can improve the temperature stability of the output voltage. The design satisfies the expected performance of the high-voltage power supply for the electrostatic deflection system.
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