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Direct-current voltage conversion device

A technology of DC voltage conversion and driving voltage, which is applied in the conversion device of output power, conversion of DC power input to DC power output, and conversion equipment without intermediate conversion to AC, which can solve problems, increase design and production, etc.

Inactive Publication Date: 2009-12-16
NIKO SEMICON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In particular, the method of integrating the power transistor Q into the PWM control unit 91 to form a single control chip will increase the troubles in design and production.

Method used

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Embodiment Construction

[0060] The present invention improves the output part of the boost circuit of the DC voltage conversion device to further modulate the output voltage of the original boost circuit, so that the drive voltage output by the DC voltage conversion device of the present invention to drive the load will not Limited by the withstand voltage of the power transistor originally used to switch the output voltage, the original output voltage can be effectively further increased to meet the needs of the load operation.

[0061] Please refer to figure 2 , is a circuit block diagram of an embodiment of the DC voltage conversion device of the present invention. Such as figure 2 As shown, this embodiment provides a DC voltage conversion device 1 for generating a driving voltage V Drive To drive a load 2 , it includes: a boost circuit 11 and a modulation circuit 12 . Wherein, the boost circuit 11 receives an input voltage V IN , and is used to boost the input voltage V IN to generate an o...

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Abstract

The invention discloses a direct-current voltage conversion device which is used for generating a drive voltage to drive a load. The direct-current voltage conversion device comprises a voltage booster circuit and a modulation circuit, wherein the voltage booster circuit is used for receiving an input voltage and boosting the input voltage to generate an output voltage, and the voltage booster circuit further controls the output voltage according to a feedback voltage representing the state of the load so as to achieve the design of outputting rated current; the modulation circuit is coupled to the voltage booster circuit, is used for forming electric effect with the output voltage to generate the drive voltage, and leads the drive voltage to be higher than the output voltage. Therefore, the invention achieves the purpose of further boosting the boosted output voltage.

Description

technical field [0001] The invention relates to a DC voltage conversion device, in particular to a DC voltage conversion device designed with a constant current and used for boosting voltage. Background technique [0002] In recent years, due to the high development of science and technology, the types and applications of various electronic products have grown rapidly. And we all know that power is one of the basic requirements for the operation of various electronic products, and the quality of the power supply is enough to affect the operation and performance of the entire electronic product. [0003] Generally, in the power supply design of electronic products, such as a DC voltage conversion circuit (DC / DC Converter) is often used to perform voltage conversion to provide the requirements for load operation. Taking the high-power white light-emitting diodes that are commonly developed and utilized in current electronic products as an example, it is necessary to use a DC ...

Claims

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Application Information

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IPC IPC(8): H02M3/155H02M3/07
Inventor 陈丁辉
Owner NIKO SEMICON
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