Direct current power circuit based on inductive storage and having no electrolytic capacitor

A technology of DC power supply and electrolytic capacitors, which is applied in circuit devices, emergency protection circuit devices, conversion of DC power input to DC power output, etc. The effect of power conversion efficiency

Inactive Publication Date: 2010-10-13
尤建兴
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the electrolytic capacitor used in the existing DC power supply has a short service life, which limits the application of the DC power supply in impo

Method used

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  • Direct current power circuit based on inductive storage and having no electrolytic capacitor
  • Direct current power circuit based on inductive storage and having no electrolytic capacitor
  • Direct current power circuit based on inductive storage and having no electrolytic capacitor

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Embodiment Construction

[0028] The functional block diagram of the DC power supply circuit based on inductive energy storage and no electrolytic capacitor of the present invention is as attached figure 1 As shown, it includes system working power supply, input terminal of industrial frequency power supply, output terminal of DC power supply, switching signal source, switching circuit, inductive energy storage device, filter circuit and voltage and current detection and protection device. Enter the working power of the system to provide energy to the DC power circuit based on inductive energy storage and without electrolytic capacitors. The switching signal source generates switching signals for the normal operation of the DC power circuit based on inductive energy storage and without electrolytic capacitors. The switching circuit generates the switching signal source The switching signal is amplified and shaped, so that the switching circuit produces an on and off state synchronously with the switchin...

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Abstract

The invention relates to a direct current power circuit based on inductive storage and having no electrolytic capacitor, comprising a switching signal source, a switching circuit, an inductive storage device, a filter circuit, a power-frequency power input end, a direct current power output end and a system operating source which are electrically connected. The switching circuit comprises a multistage directly-coupled triode push-pull switching circuit and an insulated gate field-effect-transistor, a capacitor of the filter circuit is not an electrolytic capacitor, and the capacity of a single capacitor is not greater than 10 microfarads. The multistage directly-coupled triode push-pull switching circuit is provided with a regenerative feedback circuit, and a speed-up capacitor is connected to the regenerative feedback circuit in series. The wave form of a switching signal has great squareness factor, steep leading edge and sharp front angle, and the operating efficiency of a power tube is high. The direct current power circuit based on inductive storage and having no electrolytic capacitor has high efficiency, low energy consumption, less maintenance and long fault-free operating time and can meet the use requirements of important engineering fields.

Description

technical field [0001] The invention relates to a power supply circuit, in particular to a DC power supply circuit based on inductive energy storage and without electrolytic capacitors. Background technique [0002] DC power supply is a power supply device that uses modern electronic technology to convert alternating current into direct current. Due to the current technical needs, more electrolytic capacitors are used in DC power supplies for energy storage and filtering functions, but the life of electrolytic capacitors is short, which shortens the trouble-free working time of DC power supplies and limits the use of DC power supplies in important projects. applications in the technical field. Contents of the invention [0003] In order to solve the problem that the electrolytic capacitor used in the existing DC power supply has a short service life, which limits the application of the DC power supply in important engineering technical fields, the present invention propos...

Claims

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Application Information

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IPC IPC(8): H02M7/217H02H7/125H02H3/04
CPCH02M1/08H02M3/156
Inventor 尤建兴
Owner 尤建兴
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