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Efficient LED fluorescent lamp power supply

A technology of LED drive and power supply, which is applied in the direction of light source, electric light source, lamp circuit layout, etc., and can solve the problem that the LED drive power supply cannot simultaneously meet the remote control dimming of phase-cut dimmers.

Inactive Publication Date: 2015-07-01
SHANGHAI RONGJI CONTROL SYST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the embodiments of the present invention is to provide an LED drive power supply, aiming to solve the problem that the existing LED drive power supply cannot simultaneously meet the needs of phase-cut dimmers, key switch dimming and remote control dimming for small indoor applications

Method used

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  • Efficient LED fluorescent lamp power supply
  • Efficient LED fluorescent lamp power supply
  • Efficient LED fluorescent lamp power supply

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Embodiment Construction

[0021] In order to make the objectives, technical invention embodiments and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0022] In the embodiment of the present invention, a dimming mode detection circuit is set to distinguish the type of dimmer, and a remote control receiving module is set to realize remote dimming. The load circuit adjusts the duty cycle of the main power converter, so as to achieve the effect of adjusting the current and brightness of the LED light source.

[0023] figure 1 The structure of the LED driving power supply provided by the first embodiment of the present invention is shown, and for the convenience of description, only the parts related to the embodiment of the pres...

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Abstract

The invention is applicable to the field of LED power supplies and provides an LED driving power supply and an LED light source. The LED driving power supply comprises a rectification filter circuit, a dimming mode detection circuit, a remote control receiving module, a dummy load circuit, a main power converter, a secondary rectification filter circuit and a master control integrated circuit. The efficient LED fluorescent lamp power supply can automatically detect different types of dimmers so as to automatically select corresponding dimming modes and achieve the multiple-purpose effect through one lamp. The LED driving power supply can be suitable for phase cut type dimmers, key switch dimming and remote control dimming, and wire arrangement and installation of other LED driving power supplies are not needed.

Description

technical field [0001] The invention belongs to the field of LED power supplies, in particular to an LED driving power supply and an LED light source. Background technique [0002] At present, phase-cut dimmers can only adapt to purely resistive incandescent bulbs. Using LED drive power will damage the semiconductor devices of phase-cut dimmers, and LED lights will also flicker. Using the button switch, it takes 3 seconds from each time it is turned off to on again. The energy-saving lamps designed with this dimming function will enter the brightness adjustment mode, but when using LED lights, the dimming control cannot be performed, only off and on. status. At present, remote control dimming is mostly used in the control of outdoor urban lighting lamps. Generally, the power and volume are relatively large, and it cannot be applied to small-volume LED light sources for indoor lighting. [0003] Therefore, when LED lamps are used in different dimming methods, it is necessar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B37/02
Inventor 俞展
Owner SHANGHAI RONGJI CONTROL SYST
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