You could try a voltage regulator, but I don't know how well they would work with a high power circuit, you can generally get them in 5v variants.
-Gregory On Sun, Aug 23, 2009 at 1:51 PM, Mike Mane <[email protected]> wrote: > I might as well ask an electrical question myself. What is the cheapest (or > at least simplest) way to reduce the main tank's voltage X volts to power > small, intricate IC's, etc on a circuit that require <X volts? Is there any > way to reduce voltage like this without harming the circuit or messing up > the battery? Is resistance the answer? > > —Mike "not the electrician" Måne > > Message sent by way of mobile device > > On Aug 22, 2009, at 7:49 PM, Don Shankin <[email protected]> wrote: > > Good call, just be careful around those caps > > On Sat, Aug 22, 2009 at 6:13 PM, Gregory Pwneror < <[email protected]> > [email protected]> wrote: > >> 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]> >> [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> >>> 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. >>> >>> >>> >>> >> >> >> > > > -- > ---------- > Donald Shankin > Computer Engineering Undergrad > Blue Marble Security Member > IEEE Vice Chair, MTU Chapter > NSBE Telecommunications Chair, MTU Chapter > CAEL Partner > (507) 301-2499 > <[email protected]>[email protected] > <[email protected]>[email protected] > ---------- > > > > > > --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
