Abstract
In this paper, an ultrafast high voltage pulse generator based on power MOSFETs delay push-pull structure is designed. The two complementary power MOSFETs are connected in the push-pull circuit and driven by the low-power MOSFETs separately. The output ultrafast high-voltage pulse amplitude is +30 V ~ -200 V, and the front edge and back edge times of the pulse are 5 ns and 4 ns, respectively. The width and frequency of the output pulse are controlled by the external trigger input signal. The shortest output pulse width is 12 ns and the maximum operating frequency is 100 kHz while the load is 10 pF. The delay conduction method of power MOSFETs is helpful to reduce power dissipation and improve the reliability of the circuit at a high operating frequency.
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