S
Simon Australia.
- Jan 1, 1970
- 0
Hi there
I have a problem. I am using Circuitmaker PRO (student version) and
specifically the simulation component SPICE in it to model simple
resonance and IGBT switching.
1. I initially constructed a circuit with a capacitor in series with
an inductor and used a signal generator model to feed the simple
circuit with a square wave at the resonant frequency. It worked. I
identified a siginficant gain across the coil due to voltage
magnification.
2. I then placed a DC source in series with the same capacitor/coil
combination but this time placed an IGBT (the switch) in series
sinking to ground. I sent a square wave into the gate of the IGBT. I
wanted to achieve the same result as in (1) above. IT DIDNT WORK. I
have tried having the IGBT above the cap/coil combination and below
it. I have tried reverse biasing part of the square wave and that
didnt work.
Do I need to change the modelling program... it still uses spice...
I would have thought that it was possible to use an IGBT as a switch
to create a square wave through the cap/coil combination. CAN SOME ONE
GUIDE ME RE THE STRUCTURE OF THIS SIMPLE SERIES RESONANT CIRCUIT WITH
A IGBT SWITCH?
I would really appreciate some ideas on this....
Kind Regards
Simon
I have a problem. I am using Circuitmaker PRO (student version) and
specifically the simulation component SPICE in it to model simple
resonance and IGBT switching.
1. I initially constructed a circuit with a capacitor in series with
an inductor and used a signal generator model to feed the simple
circuit with a square wave at the resonant frequency. It worked. I
identified a siginficant gain across the coil due to voltage
magnification.
2. I then placed a DC source in series with the same capacitor/coil
combination but this time placed an IGBT (the switch) in series
sinking to ground. I sent a square wave into the gate of the IGBT. I
wanted to achieve the same result as in (1) above. IT DIDNT WORK. I
have tried having the IGBT above the cap/coil combination and below
it. I have tried reverse biasing part of the square wave and that
didnt work.
Do I need to change the modelling program... it still uses spice...
I would have thought that it was possible to use an IGBT as a switch
to create a square wave through the cap/coil combination. CAN SOME ONE
GUIDE ME RE THE STRUCTURE OF THIS SIMPLE SERIES RESONANT CIRCUIT WITH
A IGBT SWITCH?
I would really appreciate some ideas on this....
Kind Regards
Simon