Everyone knows about the components of LED slim panel light. How many do you know about LED panel light driving power technology?
Since the LED lamp bead is a low voltage start-up semiconductor device, the most basic LED panel lamp requires a matched low voltage power supply and requires a constant current.
At present, LED driver power supply mainly has three technical solutions:
1. Resistor-capacitor: The scheme is simple, the device is small, the cost is low, and the constant current is not constant.
2. Non-isolated power supply: moderate cost, IC constant current, but there is also the danger of leakage caused by the breakdown of the lamp board. Therefore, it is also required that the structural shell of the lamp body must be insulated with panel lights.
3. Isolated power supply: high cost, IC constant current, good security.
In order to achieve better light extraction efficiency, LED panel lights generally have a slender strip structure. Therefore, in order to ensure the heat dissipation of the LED lamp, a full aluminum structure is used as a cavity and as a heat sink.
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