Since the recovery of the fuse for the LED driver input and output protection scheme is how to protect it? Today from the electronic technology in this small series to explain the details.
LED is driven by a constant current, the forward voltage is between 2V and 4.5V, which is related to the color and current. Vintage designs rely on simple resistors to limit the LED drive current, but the design of the LED circuit based on the typical forward voltage drop specified by the manufacturer will cause the LED drive to overheat. This may occur when the forward voltage drop of LED is down to a level that is much lower than the typical value. In this kind of event, the voltage rise of the LED driving device may lead to higher power dissipation from the driver package, so it has a negative effect on the performance or life.
At present, most LED applications use power conversion and controller parts to connect all kinds of power sources, such as AC power lines, solar panels or batteries, to control the power dissipation of the LED drive device. These interfaces are protected against damage due to over current and over temperature, and often used to have the ability to reset the polymer positive temperature coefficient (self recovery fuse) device. Can be prevented due to electrical short circuit, circuit overload or user error operation and damage.
Since the restoration of the fuse can be placed in the MOV. A number of equipment manufacturers preferred protection circuit and a combination of self recovery fuse device with upstream fault safety protection.
Above is the self recovery fuse for LED driver input and output protection program to explain! If you have a friend on the self recovery fuse selection and parameter does not understand the place, you can contact our sales department manager to do the details of the solution.


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