High voltage MOS tube knx42150 1500v/3a is applied to frequency converter power supply inverter, etc

N Ditch MOSFET–KNX42150A The drain source breakdown voltage is as high as 1500V, The maximum drain current is 3A, Suitable for inverter power supply , inverter ,DC-DC Conversion, etc .

KNX42150 The main features ：
The drain source breakdown voltage is as high as 1500V
High switching frequency
Low drive current

KNX42150 The typical opening delay of is 30nS, The typical value of shutdown delay time is 45nS, Rise time 65nS, Descent time 60nS, Reverse transfer capacitor 11pF, With extremely fast switching speed , High reliability . Reverse recovery time 410nS, Typical value of forward voltage 1.6V.

The MOS The typical value of the conduction impedance of the tube is 6.5Ω. The maximum power consumption is 50W, The maximum junction temperature is 150℃. The storage temperature of this product is -55 To 150℃, Suitable for most environments .

KNX42150 example AC380V Application block diagram of frequency converter controller

Suitable for frequency converter power supply, because it can easily change the speed of the motor , Improve the performance of the drag system , It is widely used in fans 、 The elevator 、 Water pump 、 Machine tool 、 Conveyor belt and other industrial motor drive equipment ;

The following figure shows a typical AC380V Application block diagram of frequency converter controller , Mainly including input AC380V Three phase rectification 、 Three phase inverter IGBT Power drive 、 Auxiliary power supply and other parts ; The auxiliary power supply mainly passes through DC After high pressure reduction, it is IGBT drive IC、 master control mcu、 Power supply of communication module chip, etc .

Among them, the inverter is commonly used in flyback auxiliary power supply design , Its application block diagram is shown in Figure 2 Shown , Because the auxiliary power supply is taken AC380V High voltage input after rectification , The voltage after rectification and filtering is 550V about , Therefore, high voltage is generally required MOS Design ;

1500V/3A KNX42150 Apply to advantage features

The main recommendation here is 1500V/3A High pressure MOS tube KNL42150 Applied to AC380V Advantages and characteristics of flyback auxiliary power supply of frequency converter ：

1、 The KNX42150 MOS tube VDS voltage 1500V, stay 550V Voltage should be reserved 1.5-2.5 Times the margin , With 2.5 The calculation of times the maximum withstand voltage margin requires withstand voltage 1375V, Therefore, it needs to be applied to 1500V Pressure resistant MOS tube ,KNX42150 Withstand pressure VDS voltage 1500V Meet application requirements ;

2、 The maximum on resistance is 9 Milliohm , It can reduce the conduction loss , Reduce input power consumption ; The continuous drain current is 25℃ The maximum rating is 3A, Generally, the power of auxiliary power supply is 10 A few watts , The current margin can meet the power demand ;

3、 The working junction temperature and storage temperature range are -55~150℃, Industrial grade operating temperature range , It is completely suitable for industrial market .

chart 2 Auxiliary power flyback power topology