Fast recovery diode (FRD) is a kind of semiconductor diode with good switching characteristics and short reverse recovery time. It is mainly used in switching power supply, PWM pulse width modulator, frequency converter and other electronic circuits, as a high-frequency rectifier diode, freeform diode or damping diode. The internal structure of the fast recovery diode is different from that of the ordinary PN junction diode. It belongs to the PIN junction diode, that is, the base area I is added between the P-type silicon material and the N-type silicon material to form a PIN silicon wafer.
Phone