Electronics Forum / CAD / July 2008

Anyone have a Spice model for a photo-multiplier TUBE ??
                                       ...Jim Thompson

I am building a charger for large (20-40 AH) lead acid batteries to
power kid-size electric cars.  I'm using an L200CV voltage regulator
that's a step up from the 78XX, or LM317 types.  It has 5 pins, and
offers more control.  Unfortunately, when I hooked it up to a battery

I am building a charger for large (20-40 AH) lead acid batteries to
power kid-size electric cars.  I'm using an L200CV voltage regulator
that's a step up from the 78XX, or LM317 types.  It has 5 pins, and
offers more control.  Unfortunately, when I hooked it up to a battery

My problem is that I have a very large spice circuit to simulate and I
have to do this on a remote computer which is not very stable. My
simulations takes more then one day, but the remote computer often
crash before my simulation is finished (the crashes don't have

My problem is that I have a very large spice circuit to simulate and I
have to do this on a remote computer which is not very stable. My
simulations takes more then one day, but the remote computer often
crash before my simulation is finished (the crashes don't have

In OrCAD Crapture, wiring as below...
----.---------------> GND
 __|__
  ---

Is the proper model of a loopstick antenna an inductance with a
voltage source in series (representing the signal)?
Or would something else be a better representation?
                                       ...Jim Thompson

I am trying to simulate BUZ272 in LTSpice, here is my buz272.mod file
*******
*p-MOSFET*100V 15A 0.3mOhm*Add_in_Line
.SUBCKT BUZ-272 1 2 3