Pravin Gosavi
Member
Hello I want to calculate all the resistances shown in the fig. I have used +15V and -9V supply. Current should be 2-3 A through the driving transistor. Please help.
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Ok, so like a totem-pole output on TTL, except that the driver can source ~2A when high, and sink ~2A when low?
I will LTSpice it later today, but have to be away for a while...
I don't see the problem. I looked at some data sheets and +/-30V and +/-20V is fine. (IGBT)You are going to have minus 9v on the base of the output transistor. It won't like that.
It needs to be driven like that. (With negative supply)You are going to have minus 9v on the base of the output transistor. It won't like that.
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