If you need to find a MOSFET look inside an old computer power supply, they usually have half a dozen of them inside. They also have 1600uf capacitors :)
-Gregory On Sun, Aug 23, 2009 at 7:36 AM, Frank Pittelli <[email protected]>wrote: > > Don Shankin wrote: > > Are you talking about MOSFETs? They're essentially voltage-controlled > > transistors (as opposed to being current controlled). > > Yes, there is a new breed of MOSFETs called "self-protected MOSFETs" > that are specifically designed to be driven from logic levels and that > protect against all kinds of problems. For example, see: > > http://www.onsemi.com/PowerSolutions/parametrics.do?id=819 > > The last time I looked (about 6 months ago), they only produced them in > tiny surface mount packages (which are too small for my eyes and > soldering skills :-) However, while googling to answer this question, I > see that they are now producing them in good old TO-220 packages, so > I'll have to see if my normal electronics suppliers stock them as well. > > The nice thing about this new breed is that (a) they are designed for > logic level inputs, (b) they protect the logic circuit from load > problems and (c) they don't need suppression diodes when used with > inductive loads. Basically, they are a one package solution for > switching 4-6A loads. When I start noodling with circuit designs in > the winter (the official season for circuit noodling) I plan on playing > with them to see how well they work for my purposes (cheap, durable, > easy to repair). > > Frank P. > > > > > --~--~---------~--~----~------------~-------~--~----~ You are currently subscribed to the "R/C Tank Combat" group. To post a message, send email to [email protected] To unsubscribe, send email to [email protected] Visit the group at http://groups.google.com/group/rctankcombat -~----------~----~----~----~------~----~------~--~---
