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Voltage conversion apparatus and voltage conversion method thereof

A voltage conversion and conversion circuit technology, which is applied in the direction of output power conversion device, high-efficiency power electronic conversion, conversion equipment that can be converted to DC without intermediate conversion, etc., can solve the problem of increasing circuit complexity, power loss, and energy consumption of electronic devices. Efficiency reduction and other issues, to achieve the effect of reducing circuit complexity and improving conversion efficiency

Active Publication Date: 2021-07-20
POWER FOREST TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the required operating voltage can be obtained in this way, setting the DC-DC voltage conversion device will increase the complexity of the circuit, and there will be power loss during the voltage conversion process of the DC-DC voltage conversion device, resulting in electronic Reduced energy efficiency of the unit

Method used

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  • Voltage conversion apparatus and voltage conversion method thereof
  • Voltage conversion apparatus and voltage conversion method thereof
  • Voltage conversion apparatus and voltage conversion method thereof

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Embodiment Construction

[0022] figure 1 is a schematic diagram of a voltage conversion device according to an embodiment of the present invention, please refer to figure 1 . The voltage conversion device can be, for example, a flyback converter, which includes a transformer circuit 102, a feedback circuit 104, a conversion circuit 106, a switch M1, and a control circuit 108, wherein the input end of the transformer circuit 102 is used to receive the DC obtained by rectifying the AC voltage. Input voltage Vin, the output terminal of the transformer circuit 102 is coupled to the feedback circuit 104, the conversion circuit 106 is coupled to the transformer circuit 102 and the feedback circuit 104, the feedback circuit 104 is coupled to the control circuit 108, and the switch M1 is coupled to the transformer circuit 102 and the control circuit 108 , and coupled to ground through a resistor Rcs.

[0023] Further, the transformer circuit 102 may include, for example, a primary side coil W1, a secondary ...

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Abstract

A voltage conversion apparatus and a voltage conversion method thereof are provided. A conversion circuit converts outputs of a plurality of secondary windings to generate a conversion voltage or a conversion current to a resistor network of a feedback circuit to thereby change impedance characteristics of the resistor network. The feedback circuit adjusts a feedback voltage in response to the change in the impedance characteristics of the resistor network, so that a control circuit controls an output of a transformer circuit according to the feedback voltage.

Description

technical field [0001] The invention relates to an electronic device, in particular to a voltage conversion device and a voltage conversion method thereof. Background technique [0002] A power conversion apparatus can convert a high-voltage and low-stability input voltage provided by a power company into a DC output voltage suitable for use by various electronic devices. Therefore, power conversion devices are widely used in light source modules of display devices (such as LCD screens, LEDs, TVs, electronic billboards, lighting devices, etc.), automotive electronics, computers, office automation equipment, industrial control equipment, and communication equipment. in the electronic device. [0003] Generally speaking, in order to provide the operating voltage required for the operation of different circuits in electronic devices, the AC voltage is first converted into a low-voltage DC voltage by a power conversion device, and then the DC voltage is boosted by a DC-DC volta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M5/12H02M7/06
CPCH02M5/12H02M7/068H02M3/33523H02M1/009H02M1/0048H02M1/0025
Inventor 王文圣刘嘉宪
Owner POWER FOREST TECH
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