350V single phase buck inverter using IR2181 driver and negative gate-off voltage

Open online SPICE simulator circuit link: power_350VDC_Buck_Inverter_IR2181_High-Lowside_Driver_NegGateBias.tsc


350V Single Phase Buck Inverter using IR2181 Driver and
Negative Gate-Off Voltage

{1. click here to set application parameters}
{2. click on "Run" to calculate components}
{3. click on "OK" and Simulate Transient }

{Input voltage [V]}
Hv:= 350 {use 100... 400}
{Gate driver supply[V]}
Vcc:= 18 {use 12 .. 20}

{Load resistor [Ohm]}
R_load:= 15

{Switching frequency [Hz]}
fPWM:= 10k {use 1k .. 100k}
{Duty cycle}
Duty:= 0.6 {use 0.1 .. 0.9}

tDead:= 1000n

The IR2181 is a high voltage, high speed power MOSFET and IGBT driver with independent
high and low-side referenced output channels. The output drivers feature a high pulse current buffer stage
designed for minimum driver cross-conduction. The floating channel can be used to drive
an N-channel power MOSFET or IGBT in the high-side configuration which operates up to 600 V.
AUIRGP50B60PD1 is an automotive grade 600V IGBT with UltraFast soft recovery diode
for switching frequency up to 150 kHz.

A simple way to generate negative gate-off voltage, in combination with bootstrap based supply,
is simulated here. The negative gate-off voltage is the most effecient way to prevent parasitic turn on
at high speed switching.

Further details can be found at
Petar J. Grbovic and Michel Arpiliere, “IGBT Cross Conduction Phenomenon - Origin and
Simple Protection Gate Driving Technique,” in Proc. EPE’09.



Technical Assistance
Product info: AUIRGP50B60PD1
Product info: IR2181
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