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Panel lamp power drive circuit

A power drive circuit and panel light technology, which is applied in the field of electrical equipment, can solve problems such as unsatisfactory, interference equipment, output isolation and dimming not up to the latest safety standards, etc., and achieve the effect of simplifying internal layout and simplifying wiring

Inactive Publication Date: 2019-02-01
株洲市众普森技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, in the existing dimming technology, the output isolation and dimming cannot meet the latest safety standards and cannot meet the latest UL standards. There is a problem of equipment interference caused by interference. At present, our solution can achieve input and output isolation effects that meet the latest UL standards, and front-end input. Wide voltage 90~347Vac requirements

Method used

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  • Panel lamp power drive circuit

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Embodiment

[0014] like figure 1 In the panel light power drive circuit shown, the front-end input realizes the requirement of wide voltage 90~347Vac, mainly composed of F101, MOV101, CX101, LF101, BD101, and the input protection circuit plays a protective role.

[0015] The dimming part realizes the output isolation standard >3.0mm through U302B, U302A, U401, D402, C402 and LED+, LED-, LED+ is the positive pole of the output voltage, and LED- is the negative pole of the output voltage.

[0016] The rectification circuit performs rectification, including the first rectifier tube BD101 and the second capacitor C201 for voltage division and rectification, and R204, R205, R206, and C211 form a voltage stabilizing circuit to realize the power supply mode.

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PUM

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Abstract

The invention discloses a panel lamp power drive circuit, and the circuit comprises an input protection circuit for circuit protection. The input protection circuit is electrically connected with a rectification voltage-dividing circuit, and the rectification voltage-dividing circuit is electrically connected with a dimming circuit. The circuit enables the front end input to meet the requirement of the voltage of 90-347Vac, solves a problem that the isolation effect of a current output and dimming circuit meets a latest standard (greater than 3.0mm), simplifies the wiring, and enables the internal arrangement of the whole unit to be simplified.

Description

technical field [0001] The invention belongs to the field of electrical equipment, and in particular relates to a panel light power drive circuit. Background technique [0002] At present, in the existing dimming technology, the output isolation and dimming cannot meet the latest safety standards and cannot meet the latest UL standards. There is a problem of equipment interference caused by interference. Currently, our solution can achieve input and output isolation effects that meet the latest UL standards, and front-end input. Wide voltage 90 ~ 347Vac requirements. Contents of the invention [0003] In order to solve the above problems, the present invention provides a power supply drive circuit for panel lights. The present invention enables the front-end input to meet the requirements of a wide voltage of 90-347Vac, solves the problem that the isolation effect between the current output and the dimming circuit meets the latest standard >3.0mm, and simplifies wiring....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B33/08H05B44/00
CPCH05B45/00Y02B20/30
Inventor 钟太保
Owner 株洲市众普森技术有限公司