Multi-phase pulse power supply and pulse forming method

Abstract

The invention discloses a multi-phase pulse power supply and a pulse forming method, and belong to the technical field of pulse power supplies and the power supply comprise a direct-current power supply, no less than two pulse shaping circuit, a pulse trigger control circuit and a controller. Each pulse shaping circuit comprises a main power conversion switch for converting input power into powerrequired by a pulse load; a topological inductor for energy storage of the main power conversion switch in the power conversion process; and a fly-wheel diode for providing a fly-wheel loop for the energy storage inductor when the main power conversion switch is turned off; an auxiliary switch for providing a follow current loop for the inductive part of the pulse load and the energy storage inductor and enabling the load to obtain a pulse edge; the phase difference of output pulses of the pulse shaping circuits is 360 degrees / N; wherein N is the number of the pulse shaping circuits. The powersupply with ultrahigh current amplitude, low transient response time and low output current ripples can be provided, and the power supply has the functions of input and output overcurrent protectionand multi-path time sequence synchronous phase control.

Description

technical field [0001] The invention belongs to the technical field of pulse power supplies, and in particular relates to a multi-phase pulse power supply and a pulse forming method. Background technique [0002] As we all know, pulse power supply is widely used in food processing, medical treatment, ion implantation, engine ignition and other fields. The response speed, output current ripple and repetition frequency of the power supply are directly related to the operating characteristics of the load. [0003] The pulse power supply is a special power supply that compresses energy accumulation and releases it quickly at the moment of triggering. Its technical requirements are significantly different from those of traditional power supplies. The instantaneous output power of the power supply is more than 50 times that of traditional power supplies, and the output current characteristic index is also extremely strict. , the traditional power supply design scheme cannot meet ...

AI Technical Summary

Problems solved by technology

[0003] The pulse power supply is a special power supply that compresses energy accumulation and releases it quickly at the moment of triggering. Its technical requirements are significantly different from those of traditional power supplies. The instantaneous output power of the power supply is more than 50 times that of traditional power supplies, and the output current characteristic index is also extremely strict. , the traditional power supply design scheme cannot meet the application requirements of the load

[0004] Existing pulse power supply schemes include magnetic pulse compression, pulse forming network, Marx generator, etc. For the characteristics of large current, high quality, and fast response, it is difficult for a single power device and power conversion circuit to achieve reliable operation under working conditions. work, and the traditional analog circuit control method is difficult to adapt to the online adjustment requirements flexibly and accurately

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