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A circuit compatible with driving LED lamps and fluorescent lamps

A technology for compatible driving of LED lamps, applied in the direction of light sources, electric light sources, electrical components, etc., can solve the problem that the driving circuit cannot drive LED lamps at the same time

Active Publication Date: 2017-10-10
东莞市北测检测技术服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a circuit compatible with driving LED lamp tubes and fluorescent lamp tubes in view of the deficiencies in the prior art, so as to overcome the defect that the drive circuit for driving fluorescent lamp tubes in the prior art cannot drive LED lamp tubes at the same time

Method used

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  • A circuit compatible with driving LED lamps and fluorescent lamps
  • A circuit compatible with driving LED lamps and fluorescent lamps

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Embodiment Construction

[0017] like figure 1 and figure 2 As shown, the present invention is compatible with circuits for driving LED lamp tubes and fluorescent lamp tubes, including a double-bridge rectifier filter circuit, a power factor correction PFC circuit, a step-down conversion BUCK circuit and a linear switch control circuit connected in sequence, wherein the linear switch control The circuit includes: main control chip U1, capacitor C5, resistor R3, resistor R4, resistor R5, resistor R6, resistor R7, capacitor C6, resistor R10, resistor R9, resistor R13, resistor R14, after resistor R3 and resistor R4 are connected in series, the resistor R4 is connected to pin 1 of the main control chip U1. After resistor R7 and capacitor C6 are connected in parallel, one end is connected to pin 2 of the main control chip U1, the other end is grounded, pin 3 of the main control chip U1 is grounded, and both ends of the resistor R6 are respectively connected to the main control Chip U1 pin 4 and main cont...

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Abstract

The invention discloses a circuit compatible with driving LED lamp tubes and fluorescent lamp tubes, which comprises a double-bridge rectifier filter circuit connected in sequence, a power factor correction PFC circuit, a step-down conversion BUCK circuit and a linear switch control circuit, wherein the linear switch The control circuit includes: main control chip U1, capacitor C5, resistor R3, resistor R4, resistor R5, resistor R6, resistor R7, capacitor C6, resistor R10, resistor R9, resistor R13, resistor R14, the circuit of the present invention can be fully compatible with driving LED Lamp tubes and fluorescent lamp tubes have created favorable conditions for the popularization and use of LED lamp tubes.

Description

technical field [0001] The invention relates to the technical field of LED power supplies, in particular to a circuit compatible with driving LED lamp tubes and fluorescent lamp tubes. Background technique [0002] The drive of traditional fluorescent tubes generally uses two types of ballasts, one is electronic ballasts, and the other is magnetic ballasts. If the drive circuit for driving fluorescent tubes is used to drive LED tubes, the drive circuit If the electronic ballast is removed and rewired, or the starter needs to be removed, it will make users feel very inconvenient and cause obstacles to the popularization of LED lamps. Therefore, the market urgently needs a circuit that is compatible with driving LED lamps and fluorescent lamps. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a circuit compatible with driving LED lamp tubes and fluorescent lamp tubes in view of the deficiencies in the prior art, so ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B35/00H05B33/08H05B41/295H05B41/36H05B44/00
CPCH05B35/00H05B41/295H05B41/36H05B45/00
Inventor 廖玉柱
Owner 东莞市北测检测技术服务有限公司