speedshop
Junior Member level 3
Hi I thought I'd have a go at building this very simple circuit using an IGBT to drive a Car ignition coil.
So far I've had no luck getting it to work, with T1 failing after a couple of seconds running. The IGBT side seems fine and never fails. I've tried numberous things such as replacing T1 with a 1 amp mosfet, a 240 volt mosfet and altered the resistors all to no avail.
This is the circuit I am trying to use:
The components are:
R1 1K 1Watt
R2 1K 1Watt
R3 50R
D1 1N4007
D2 1N4007
D3 400v zener 1.5KE400
T1 2n7000 mosfet
T2 IRGB6860KPBF
So why is the T1 blowing, even when a 1 amp / 240 volt item used?
So far I've had no luck getting it to work, with T1 failing after a couple of seconds running. The IGBT side seems fine and never fails. I've tried numberous things such as replacing T1 with a 1 amp mosfet, a 240 volt mosfet and altered the resistors all to no avail.
This is the circuit I am trying to use:
The components are:
R1 1K 1Watt
R2 1K 1Watt
R3 50R
D1 1N4007
D2 1N4007
D3 400v zener 1.5KE400
T1 2n7000 mosfet
T2 IRGB6860KPBF
So why is the T1 blowing, even when a 1 amp / 240 volt item used?