I've been building small circuits for decades but never used SPICE. What all does it do? How good are the models in the library? I am familiar with ORCAD. But have my doubts about SPICE.
Referring to the guy who built the 12 V SLA battery charger using a TL072 running at 5 V, he said the simulation was good but he was applying a 12 V input to an op amp running off of 5 V. Does SPICE check such things? Does it just check that you don't have two outputs connected together that shouldn't and that all inputs are tied to something?
How does it model things like transistor gain? This isn't a precise value. LEDs do not have a precise voltage drop across them.
How does it deal with op amp offset voltage? Again this isn't a precise and predictable value.
thanks, just wondering if I should bother to learn PSPICE. Most of my stuff is pretty simple. Yes, I make mistakes but usually catch them the second or third time through.
I can see the long term value of simulations over breadboarding as parts get more surface mount and difficult to breadboard. Yes I can put the SMD parts on adapters but the adapters cost more than the chips.
Referring to the guy who built the 12 V SLA battery charger using a TL072 running at 5 V, he said the simulation was good but he was applying a 12 V input to an op amp running off of 5 V. Does SPICE check such things? Does it just check that you don't have two outputs connected together that shouldn't and that all inputs are tied to something?
How does it model things like transistor gain? This isn't a precise value. LEDs do not have a precise voltage drop across them.
How does it deal with op amp offset voltage? Again this isn't a precise and predictable value.
thanks, just wondering if I should bother to learn PSPICE. Most of my stuff is pretty simple. Yes, I make mistakes but usually catch them the second or third time through.
I can see the long term value of simulations over breadboarding as parts get more surface mount and difficult to breadboard. Yes I can put the SMD parts on adapters but the adapters cost more than the chips.