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Special DC constant voltage and current power supply for high-voltage speed controller

A technology of constant voltage and constant current and klystron, which is applied in the direction of adjusting electrical variables, transformer/inductor coil/winding/connection, irreversible AC power input conversion to DC power output, etc., and can solve the difficulty of power supply ripple suppression, etc. problem, to achieve the effect of suppressing the output ripple

Inactive Publication Date: 2009-10-21
国充充电科技江苏股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This feature of the circuit requires that there should be no inert components such as inductors and capacitors used to suppress output ripple in the main circuit of the circuit, because the electric energy stored on such components makes the circuit unable to quickly cut off the output voltage within 1ms
This brings great difficulty to power supply ripple suppression.

Method used

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  • Special DC constant voltage and current power supply for high-voltage speed controller
  • Special DC constant voltage and current power supply for high-voltage speed controller
  • Special DC constant voltage and current power supply for high-voltage speed controller

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Embodiment Construction

[0023] Further illustrate the present invention in conjunction with accompanying drawing and embodiment, as figure 1 As shown, the present invention consists of a computer, a drive circuit, a three-phase power frequency voltage input protection circuit included in the power supply main circuit, a fast cut-off output DC high voltage circuit, a non-contact motor drive voltage regulator, a high voltage transformer, a high voltage rectifier bridge, a high voltage stabilizer The three-phase input protection part is mainly composed of an air switch, an AC contactor and a fuse, which introduces the three-phase power frequency power into the power supply as the input AC power of the power supply; quickly cuts off the three-phase In the voltage link, when the load fails and the DC output of 23,000 volts needs to be cut off quickly, this link works to quickly cut off the three-phase voltage input, thereby achieving the purpose of quickly cutting off the DC high voltage; in the three-phas...

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Abstract

The invention relates to a DC constant-voltage and constant-current power supply for high-voltage klystron devices, which belongs to the technical field of DC constant-voltage and constant-current power supplies. In order to effectively suppress output ripples, the invention adopts brushless electromagnetic voltage regulation controlled by a DC motor The transformer is used as a voltage control component; the secondary winding of the high-voltage transformer uses two windings, the delta and the star, instead of the 6-pulse full-wave rectification technology that usually only uses one winding, and uses a delta connection and a star connection. 12-pulse rectification technology, so that the ripple coefficient after rectification can reduce the P-P value of the ripple coefficient from 13.4% to 3.4% even without the filtering effect of inductance and capacitance; a main The electronic voltage stabilizing adjustment component composed of transistor network finally reduces the ripple coefficient applied to the load from 3.4% to 0.1%. The invention is suitable for DC constant voltage and constant current power supply as a high-voltage klystron device.

Description

technical field [0001] The invention relates to a DC constant-voltage constant-current power supply dedicated to a high-voltage klystron device, belonging to the technical field of DC constant-voltage constant-current power supply. Background technique [0002] Under normal conditions, the high-voltage klystron device is required to output 23KV high voltage and 4A output current to the load of the power supply. The klystron not only requires the power supply to have fast shutdown performance, but also requires extremely small ripple voltage, and the ripple coefficient index is 0.1%. Because the value of a klystron is hundreds of thousands of yuan, once the load current exceeds 4A, it means that the klystron may be damaged. Therefore, the power supply must cut off the output high voltage and current within 1ms. This feature of the circuit requires that there should be no inert components such as inductors and capacitors used to suppress output ripple in the main circuit of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M7/145G05F1/46H01F27/28
Inventor 徐宏安吕德宽
Owner 国充充电科技江苏股份有限公司
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