The difference between an led drive and a power source and a ballast
They're all on the switch Leds require dc work, and the current is constant: 3.3vdc, 350 milliamps A fluorescent lamp usually requires alternating current: 77VAC, 0.2 ampere. 3 from 220V to their way of communication. Power supply, electronic ballast is just a power switch. 4 early is inductive ballast, fluorescent tube is nonlinear load, current and voltage on both ends is small, the current is bigger, so there must be something curb its current. This is an early inductance ballast, now electronic ballast The pure power supply is constant pressure, the output 12V, which is 12V, is small, and the load can range from zero to maximum. Leds now do constant current, which is a lot more volatile and has to do with LED properties.
This problem actually makes clear what call the whole flow what call the driver understand: 1, rectifier is ac into dc, in order to make the power more stable, avoid communication wave of ups and downs to make electrical appliances use more stable and durable, so like to use dc electrical appliances like fluorescent lamp, TV, flashlight, radio and so on are rectifier. 2, LED drive refers to in order to achieve a certain power, you have to drive on the LED IC, that is to say you five LED light, in 50 you will give him come on, come on is to his driver, (say so a bit vulgar). 3, the power supply is good to say, without electricity all appliances are decoration.
Leds are designed for leds, which can be used for leds, or for other things, for fluorescent lamps.
