What is the cause of overheating of fast recovery diode loading? — SUNMATE
What is the cause of overheating of fast recovery diode loading?
The reason for the overheating of fast recovery diode loading. During the use, replacing a high-power fast recovery diode will cause the overheating of loading.
Due to the high frequency of the circuit current signal, the diode speed can not keep up. You measured the effective value of the current, which should be DC. There may be high-frequency components in the signal, and the peak value of the current is much higher than the 2A you measured, which leads to the extremely high peak power of the diode and the tube is very hot.
Fast recovery diode loading overheating treatment method. Generally, it is recommended that you use ultrafast recovery diode