Ashok chakravarthi
Newbie level 3
ir2110 igbt
Hai,
I designed IGBT triggering circuit as follows
Boost strap cap:220 uf electrostatic
boost diode: UN4007
frequency 50hz that means 10ms on period and 10 ms off period.
I use only HO pulse for triggering IGBT. Supply voltage 30 v DC.
Vcc=12v,vdd=12v. load 120Ω ,10 watt resistor.
There is no problem during turn on period, IGBT is turn on for 10ms but while turn off time i got problem as follows
IGBT is off for only 25 usec and it again on and it is in on condition for 250 u sec and it is agin off for 25 u sec and on for 250 usec this condition is repeats.
any plz help me to rectify this problem.
Hai,
I designed IGBT triggering circuit as follows
Boost strap cap:220 uf electrostatic
boost diode: UN4007
frequency 50hz that means 10ms on period and 10 ms off period.
I use only HO pulse for triggering IGBT. Supply voltage 30 v DC.
Vcc=12v,vdd=12v. load 120Ω ,10 watt resistor.
There is no problem during turn on period, IGBT is turn on for 10ms but while turn off time i got problem as follows
IGBT is off for only 25 usec and it again on and it is in on condition for 250 u sec and it is agin off for 25 u sec and on for 250 usec this condition is repeats.
any plz help me to rectify this problem.