High-voltage isolation power supply

A high-voltage isolation and power supply technology, applied to electrical components, adjusting electrical variables, instruments, etc., can solve the problems of unusable and low voltage withstand level of high-voltage isolated power supplies, so as to ensure the safety of electricity use, reduce switching losses, and realize voltage equalization Effect

Pending Publication Date: 2020-02-21
HUNAN FUDE ELECTRICAL +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The defect of the existing technology is: the withstand voltage level of the high-voltage isolated power supply is low, and it cannot be used in high-power voltage occasions such as DC10KV

Method used

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  • High-voltage isolation power supply

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Embodiment Construction

[0019] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0020] The high-voltage isolated power supply of this embodiment is as figure 1 As shown, a plurality of energy storage capacitors E1-E10 with equal capacitance are connected in series and connected between the positive bus Bus+ and the negative bus Bus-, and a resistor is connected in parallel at both ends of each energy storage capacitor. This part of the resistance is shown in Fig. The resistance values ​​of R1-R10 are the same,...

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Abstract

The invention relates to a high-voltage isolation power supply suitable for a high-power voltage occasion. The high-voltage isolation power supply comprises a positive bus Bus+, a negative bus Bus-, atransformer T1, an inductor L1, a first rectifier bridge, a filter, a plurality of switch tubes and a plurality of energy storage capacitors with equal capacitance values, the energy storage capacitors are connected in series and then bridged between the positive bus Bus+ and the negative bus Bus-, and two ends of each energy storage capacitor are connected in parallel with resistors with the same resistance value; the switch tubes are connected in series and then bridged between the positive bus Bus+ and the negative bus Bus-, and the C pole and the E pole of each switch tube are bridged with resistors with the same resistance value; each energy storage capacitor is divided into two groups, the contact between the two groups is A, the switch tube is divided into two groups, the contact between the two groups is B, and the contact B is sequentially connected with the inductor L1 and the primary side of the transformer T1 in series and then connected to the contact A; the transformer T1 is provided with a first group of secondary sides, and the first group of secondary sides are sequentially connected with a first rectifier bridge and a filter and then connected to the output end of the high-voltage isolation power supply.

Description

technical field [0001] The invention relates to a high-voltage isolated power supply. Background technique [0002] The existing high-voltage isolated power supply, as shown in document 201020684716.5, is composed of an inverter circuit, a transformer and a rectification filter circuit, and the voltage conversion is realized by controlling the switching tubes in the inverter circuit to conduct alternately. [0003] The defect in the prior art is that the withstand voltage level of the high-voltage isolated power supply is low, and it cannot be used in high-power voltage occasions such as DC10KV. Contents of the invention [0004] In order to solve the deficiencies in the prior art, the present invention aims to provide a high-voltage isolated power supply suitable for high-power voltage occasions. [0005] For this purpose, a high voltage isolated power supply is provided, [0006] Including positive bus Bus+, negative bus Bus-, transformer T1, inductor L1, first rectifi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M3/335
CPCH02M3/33592
Inventor 李稳根廖晓斌
Owner HUNAN FUDE ELECTRICAL
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