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Author Topic: Ideal diode (almost)  (Read 674 times)
Shepherd
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« on: February 18, 2017, 06:29:08 AM »

I am looking for an almost ideal diode model.
Well, it should have typical forward voltage like 0.6V, some capacitance, but no nonlinearities.
I'd like to speed up transient simulations that way.
I have the 11-th version of Tina Industrial.
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CDRIVE
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« Reply #1 on: February 18, 2017, 10:38:27 AM »

I am looking for an almost ideal diode model.
Well, it should have typical forward voltage like 0.6V, some capacitance, but no nonlinearities.
I'd like to speed up transient simulations that way.
I have the 11-th version of Tina Industrial.

I'm prefacing my response with the fact that I'm not proficient in reading or writing Pcode but my concept of an Ideal Diode would be a diode with absolutely no forward voltage drop, no junction capacitance in either polarity, absolutely infinite resistance in the reverse direction and an infinite reverse voltage rating.

Vf = 0V
Cj = 0F
Irev = 0A
Vrev Max = ∞

Of course these characteristics don't exist in our universe.  Smiley

That said and keeping my preface in mind I put a general purpose power rectifier 1N1183 and changed the N/Emission Coefficient[-]: 1u. I then ran a DC Transfer and Transit curves on it. Though in my mind an ideal diode would have zero junction capacitance I didn't touch the junction capacitance or any other properties.

Chris

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