Quite unlikely.is it due to wrong way of soldering??
And the frequency and details of the pulse transformer.Please post your schematic.
The last 1000 time that question is asked here, the Gates are not driven right.Im trying to make an H bridge with mosfets .... it blows off
I can only guess, but I'd bet you're putting DC into a low ohm load. What is the DC resistance of the pulse transformer?Im trying to make an H bridge with mosfets....works fine on no load. But moment i connect it to an out put pulse transformer it blows off?? is it due to wrong way of soldering??
Dana,Actually you can drive the NPN inverted, in fact for some types you wind up with lower
Vcesat when you do. But forced beta much worse in this configuration.
I am in agreement with Sensacell, there are better ways of doing this.
Regards, Dana.
I did a simulation of this, using 2N3904, but the emitter of the lower transistor doesn't get above 43mV despite 84mA flowing in the 51Ω resistor. I think this must be that the model doesn't understand 2N3904 with reverse polarity?Actually you can drive the NPN inverted, in fact for some types you wind up with lower
Vcesat when you do. But forced beta much worse in this configuration.
I am in agreement with Sensacell, there are better ways of doing this.
Regards, Dana.
Sim should handle reverse polarity, its just passive constants and V and I sources.I did a simulation of this, using 2N3904, but the emitter of the lower transistor doesn't get above 43mV despite 84mA flowing in the 51Ω resistor. I think this must be that the model doesn't understand 2N3904 with reverse polarity?
Its base is at +5V.Sim should handle reverse polarity, its just passive constants and V and I sources.
I think.......
If emitter 43 mV off ground, is it saturated ?
Regards, Dana.
And this is despite the forward biased base collector which would limit the maximum base voltage. In a real circuit the base voltages of the transistors would not get above about 0.7V so the top transistor wouldn't turn on!Its base is at +5V.
Something's certainly odd. There's 200mA base current!I think this must be that the model doesn't understand 2N3904 with reverse polarity?
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