Switching power supply is the same as other electronic devices. Short circuit is the most serious fault. Whether short-circuit protection is reliable or not is an important factor affecting the reliability of Constant voltage power supply.

IGBT has the characteristics of high input impedance of field effect transistor, low driving power, high voltage, current capacity and reduced tube voltage of bipolar transistor. It is currently the most commonly used medium and high power switching power supply. Power electronic switching devices.

The short-circuit time that an IGBT can withstand depends on its saturation voltage drop and short-circuit current, which is generally only a few μs to tens of μs. Excessive short-circuit current not only shortens the short-circuit withstand time, but also causes the current drop rate during turn-off to be too large.

Because the short circuit is very harmful to the lamp and the power supply, we need to choose a LED power supply with short circuit protection. The smarts 100W Waterproof led driver has overload, overheating, short circuit protection, good waterproof performance, and can protect the lamp for a longer life. Time