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Intelligent rectification control high-robustness output circuit

An output circuit, high robust technology, applied in the direction of output power conversion devices, electrical components, etc., can solve the problems of poor reliability, high power consumption, low efficiency, etc., and achieve high power factor, low power consumption, and low cost Effect

Inactive Publication Date: 2014-06-11
XIAN ZHIHAI POWER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The invention provides an intelligent rectification control high robustness output circuit, which mainly solves the problems of high power consumption, low efficiency and poor reliability of existing low-voltage new energy power converters

Method used

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  • Intelligent rectification control high-robustness output circuit

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Embodiment Construction

[0022] The intelligent rectification control high robustness output circuit includes a reverse isolation circuit, the output end of the reverse isolation circuit is connected to the load through the energy storage filter circuit, and the input end of the reverse isolation circuit is connected to the output end of the VMOS switch circuit , the input end of the VMOS switch circuit is connected to the output end of the input power supply through the freewheeling inductance, the output end of the input power supply is connected to the input end of the width-adjustable pulse control circuit through the input current sampling circuit, and the output end of the energy storage filter circuit is passed through the output The current sampling circuit is connected to the input end of the width-adjustable pulse control circuit, the output end of the width-adjustable pulse control circuit is connected to the input end of the VMOS switch circuit through the drive signal synthesis circuit, the...

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Abstract

The invention provides an intelligent rectification control high-robustness output circuit. The intelligent rectification control high-robustness output circuit mainly solves the problems that an existing low-voltage new energy power converter is high in power consumption, low in efficiency and poor in reliability. A follow current inductor of the intelligent rectification control high-robustness output circuit utilizes the inductance characteristic to boost an input power supply; in the switching-on process of a VMOS switching circuit, current passes through the follow current inductor; in the switching-off process of the VMOS switching circuit, a follow current circuit is switched on, the current in the follow current inductor continues passing, high voltage is produced to charge an energy storage filter circuit, and the energy storage filter circuit charges a load after being charged; the energy storage filter circuit is used for supplying power to the load in the switching-off process of the VMOS switching circuit; an output protective circuit is arranged before the load.

Description

technical field [0001] The invention relates to a power conversion circuit. Background technique [0002] In recent years, photovoltaic power generation, wind power generation, battery power supply and other renewable new energy systems with AC low voltage and DC low voltage power supply have been widely used. It is imperative to improve the power supply efficiency, power supply quality and power supply reliability of low voltage new energy power supply systems. [0003] At present, the power conversion known in the art basically adopts: [0004] 1. AC (AC) input, using a full-wave rectifier to rectify the input AC (AC) power to DC (DC) power, and then convert DC / DC to DC (DC) output. This kind of scheme solves the conversion problem of higher input voltage AC power supply and low-power power supply. However, when low-voltage AC power input and high-power power conversion, because the voltage drop of the AC / DC rectifier circuit is relatively high, high power consumption is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M1/088H02M1/32
Inventor 胡家培胡民海
Owner XIAN ZHIHAI POWER TECH
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