Flicker-free dimming circuit for non-point light source
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United States of America Patent
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Dec 26, 2017
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app pub date -
Feb 8, 2017
filing date -
Dec 5, 2016
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Abstract
A flicker-free dimming circuit for non-point light source has a TRIAC module, an input module, a conversion module and an output module. The TRIAC module adjusts the voltage phase of an external power supply for the input module to export an input voltage, and the conversion module in a boost circuit structure is provided with a conversion coil and a converter to receive and raise the voltage value of the input voltage to a voltage value of an operating voltage and then supplies the operating voltage to the output module. The output module adopts a fly-back circuit structure and induces the operating voltage to form a driving voltage in a constant value and then outputs the driving voltage to a lamp with a relatively wide light source area. In this way, the panel lamp can meet high safety standards and enhance its product adaptability and competiveness.
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