Efficient and stable LED intelligent lagging edge phase-shifting light modulator
A phase-cut dimming and stable technology, applied in the field of dimmers, can solve the problems of low work efficiency, inconvenient use, small use range, etc., and achieve the effects of improving stability, stable power supply, and delicate and soft dimming of LED work.
Pending Publication Date: 2016-03-09
赖春梅
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Problems solved by technology
With the improvement of LED production technology and the continuous reduction of production costs, it is possible for white LEDs to replace traditional lighting sources. However, the existing LED dimmers generally have the defects of low work efficiency, small use range and inconvenient use.
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[0015] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0016] see Figure 1-7 , an efficient and stable LED intelligent trailing edge phase-cut dimmer, including a synchronous head detection module, a photoelectric coupling module A, a photoelectric coupling module B, a photoelectric coupling module C, a driving power supply module A, a driving power supply module B, and a driving power supply module C. PWM suspension drive module A, PWM suspension drive module B, PWM suspension drive module C, MOSFET cycle conver...
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The invention discloses an efficient and stable LED intelligent lagging edge phase-shifting light modulator. The light modulator comprises a synchronous head detection module, a photoelectric coupling module, a driving power supply module A, a driving power supply module B, a driving power supply module C, a PWM suspension driving module A, a PWM suspension driving module B, a PWM suspension driving module C, an MOSFET frequency converter A, an MOSFET frequency converter B, an MOSFET frequency converter C, an MCU detection module, an MCU power supply module and 0-10V signal input. The efficient and stable LED intelligent lagging edge phase-shifting light modulator performs the PWM debugging through detecting the driving voltage, the mains supply phase position and the frequency to enable the zero crossing points of the input and the output to be consistent so as to improve the stability; and the light modulator has the following advantages of: 1, compatible capacitive load; 2, greater than 98% of working efficiency; 3, fine and smooth LED light dimming; 4, capabilities of supporting the 0-10V signal modulation mode, performing the MCU detection and performing intelligent light dimming; 5, capability of supporting light dimming by a manual rotary knob; and 5, capability of supporting multiple paths of LED lamps in parallel (3600W) for synchronous phase-shifting light modulation.
Description
technical field [0001] The invention relates to a dimmer. Specifically, it is an efficient and stable LED intelligent trailing edge phase-cut dimmer. Background technique [0002] As the negative effects caused by the global greenhouse effect continue to emerge, countries around the world regard energy conservation and emission reduction as an important issue that must be considered in their own economic development. An emerging energy-saving technology. LED is recognized as the fourth-generation green light source. It is a solid cold light source with many advantages such as high efficiency, long life, safety and environmental protection, small size, high reliability, and fast response. With the improvement of LED production technology and the continuous reduction of production costs, it is possible for white LEDs to replace traditional lighting sources. However, the existing LED dimmers generally have the defects of low work efficiency, small use range and inconvenient u...
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Login to View More IPC IPC(8): H05B33/08H05B44/00
CPCH05B45/40H05B45/50
Inventor 赖春梅魏文财
Owner 赖春梅