Mapson silicon carbide diode, PFC circuit design, one of the "peerless double pride"

Time：2023-10-24　Reading：105

With the development of gallium nitride fast charge, high-power fast charge has become popular.

and the high-power fast charge needs to use PFC circuit to carry out power factor correction and suppress the interference to the grid. 

In order to achieve small volume high-power output, 
the PFC circuit also uses gallium nitride switching tubes to increase the operating frequency and reduce the volume of magnetic components. 

However, if the traditional fast recovery diode is combined with gallium nitride switching tube, the reverse recovery time is longer and the switching loss is larger.

which can not meet the high frequency applications of small volume. 

The silicon carbide diode series products launched by Mposen MSD04065G1 and MSM06065G1 have no reverse recovery current.

which is very suitable for high-frequency rectifier applications, 
and the strong combination of gallium nitride switching tubes can increase the frequency and reduce the loss.

thereby reducing the magnetic component volume and further improving the power density of the charger.

Product introduction

MSD04065G1 silicon carbide diode withstand voltage 650V, 150℃ continuous forward current 4.8A.
operating temperature range -55 to 175℃, positive pressure drop 1.45V, and has a positive temperature coefficient characteristics, can be directly used in parallel. 
It can be used in switching power supplies, power factor correction, motor drives and HID lighting applications.

Product characteristics

1、650V Schottky rectifier

2、Shorter recovery time

3、provides high-speed switching

4、Very high frequency

5、The switching behavior is temperature-independent

6、The switching speed is extremely fast

7、VF is a positive temperature coefficient



Product advantage

1、higher overvoltage safety margin

2、 improve efficiency under all load conditions

3、Compared with silicon diode, the efficiency is improved and the heat sink requirements are reduced

4、no thermal runaway, can be parallel

5、basically no switching loss



Application field

1、switching power supply

2、PFC circuit

3、Motor driver

4、HID lighting