Small and efficient high-power solid-state modulator

Abstract

The invention discloses a small and efficient high-power solid-state modulator and belongs to the technical field of pulse power. The modulator comprises a solid-state modulator component and a pulse transformer (T), wherein the solid-state modulator component comprises a direct-current power supply (E1), an energy storage capacitor (C1) and a solid-state switch (V1). The direct-current power supply (E1) is used for charging the energy storage capacitor (C1). Output pulses of the modulator are obtained through the pulse transformer (T) after the energy storage capacitor (C1), the solid-state switch (V1) and the pulse transformer (T) form a discharge circuit. According to the small and efficient high-power solid-state modulator, the single solid-state switch is used, the equalization voltage and the connection consistency of the solid-state switch are not required to be considered, the voltage is low, insulation design can be achieved easily, the output waveform quality of the modulator is greatly improved, the circuit topological structure is simple, the size is small, the efficiency is high, modularization can be achieved easily, and the modulator is applicable to various platforms.

Description

technical field [0001] The invention relates to a solid-state modulator, in particular to a high-power solid-state modulator, belonging to the technical field of pulse power. Background technique [0002] The modulator is the key equipment of the high-power transmitter, and the output pulse waveform of the modulator directly affects the quality of the radar radio frequency signal. The working voltage of the single-shot klystron used in high-power MW-class transmitters is generally tens of kilovolts, the working current is generally tens of amperes, and the efficiency is about 30%. Radar requires a working waveform ranging from less than 1 microsecond to tens of microseconds, with a repetition rate up to thousands of Hertz. For this reason, the output peak power of the high-power modulator should exceed 3MW, the output pulse amplitude can reach 70kV to 80kV, the pulse current can reach 40A to 50A, the pulse width can be adjusted from 1 microsecond to tens of microseconds, an...

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Problems solved by technology

However, it can be seen from the paper that the scheme uses multiple excitation circuits (i.e. primary components), the circuit topology is slightly complicated, the amount of equipment is large, and the volume is large; at the same time, in order to ensure the current sharing of multiple excitation circuits, the scheme requires each group The components and layout of the excitation circuit should be as consistent as possible, and the synchronization and delay of the trigger circuit should be high

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