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News >> LED downlight power energy conversion equation |
LED downlight power energy conversion equation |
LED downlight linear step-down constant current power supply is a constant example of the type of energy consumption for a given current, the energy represented by constant pressure drop across the filter is consumed; another case is a constant energy conversion devices, LED downlight power trying to put the energy difference between the different levels of storage.
This LED downlight power energy conversion equation used is one of the basic laws of thermodynamics: input power = output power; with W = V ¡¤ I given (given), replace the formula of W; Vin ¡¤ Iin = Vout ¡¤ Iout + (100-X% efficiency) W fever (fever). If the front LED forward voltage as Vout, the required current as Iout, will get LED downlights power driver's general equation.
Although LED downlight power circuit is simple, but with all the energy LED driver, as there are issues of energy consumption and heat generated by the resistance. With the increase in the brightness of power LED downlights, fever will become increasingly serious, the brighter the LED downlight power points, the more energy is wasted.
In the current is small, and the pre-strung together when power to the LED downlight voltage slightly lower than the sum of the supply voltage, this type of constant current mode can be used. There are several manufacturers to use the power LED downlight is this constant current method, but when driving high-brightness LED, does not recommend using this method.
Guangzhou, a sharp Optimax Technology Co., Ltd. (www.crilite.com) - specialized in producing LED waterproof power supply, LED downlights LED panel lights power supply and other products.
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