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Inductive energy-storage microsecond-grade high-power pulse current source

A high-power pulse, microsecond-level technology, applied in the field of current source, can solve the problems of pulse width limited to millisecond level and response time of hundreds of microsecond level, which cannot satisfy fast pulses, etc., and achieve good constant current characteristics, lead Arc and Constant Current Ultra-Fast Effects

Active Publication Date: 2010-12-22
ECU ELECTRONICS INDAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is also a high-frequency power supply based on fast current feedback to achieve pulse current output, but it is limited to a pulse width of milliseconds and a response time of hundreds of microseconds, which cannot meet the requirements of fast pulses.

Method used

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Embodiment Construction

[0008] A microsecond-level high-power pulse current source for inductive energy storage, including an inductive charging circuit 1, an inductive discharging circuit and a clamping circuit 2. The inductive charging circuit 1 is a series connection composed of an excitation power supply V2, an inductance L and a switch tube. loop, the excitation power supply V2 injects magnetic field energy into the inductor L. The inductance discharge circuit is a series loop composed of a load, a freewheeling diode D1 and an inductance L, and the clamp circuit 2 is connected across the inductance charging circuit 1, such as figure 1 shown. The switch tube includes a field effect transistor S1, and a field effect transistor S2 composed of a plurality of field effect transistors connected in series. In the present invention, the described field effect transistor S2 is composed of 3 to 5 field effect transistors connected in series, The excitation power supply V2, the switch tube S1, the inducto...

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Abstract

The invention relates to an inductive energy-storage microsecond-grade high-power pulse current source comprising an inductive charging circuit, an inductive discharging circuit and a clamping circuit, wherein the inductive charging circuit is a series loop which consists of an excitation power supply V2, an inductor L and a switch tube; the inductive discharging circuit is a series loop which consists of a loader, a fly-wheel diode D1 and the inductor L; and the clamping circuit is connected with the inductive charging circuit in a spanning way. The invention can generate a current-controllable high-power pulse power supply on the negative-resistance loader, has adjustable striking voltage, not only has very well constant-current characteristics, but also can fast respond to plasma arcs and realize the ultrafast switching of striking arcs and constant currents.

Description

technical field [0001] The invention relates to a current source, in particular to a microsecond-level high-power pulse current source for inductive energy storage. Background technique [0002] At present, high-voltage pulse power supplies are widely used in high-energy physics and nuclear fusion research fields, especially for ion source loads, because their volt-ampere characteristics are negative resistance, and the physical process of plasma discharge is as short as tens of nanoseconds. , not only requires the power system to have good steady-state current characteristics, but also requires it to have extremely fast dynamic response characteristics. [0003] Traditional high-voltage pulse power supplies generally use MARX generators or PFNs to generate high-voltage pulse outputs. They are all voltage source outputs and do not have good current output characteristics. At present, there is also a high-frequency power supply based on fast current feedback to realize pulse...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M9/02
Inventor 陈滋健
Owner ECU ELECTRONICS INDAL
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