question for you EE guys ...

[BlackVert]

but a little background first ...

you know i have been having problems with my tranny not shifting right. i am convinced it is the wiring. i have a manual valve body on order for it, but in the meanwhile i have been messing around with the idea of building my own little circuit with a 6 position switch to control the forward gears. so i put together a circuit on my breadboard that does what i want:

1st: SS1 on , SS2 off
2nd: SS1 and SS2 both off
3rd: SS1 off, SS2 on
4th: SS1 and SS2 both on

each solenoid will be fed by a relay rated at 10A. right now, the relays just turn on 12v LEDs.

i have the control (ie - coil) side of the relays powered by a 12V DC power source rated at 1A, i have a diode in front of the whole circuit to protect it from being connected backwards, and i will use a fuse to protect it (i have 1, 2, 5, and 10A fuses for it). i also have a 12V regulator (#7812) as the first thing in the circuit (after the diode), but i am still worried that if i hook it up to a car battery, the battery will burn something up because it can push a whole lot more current than my little DC power source

can you guys enlighten me about what to expect if i hook my little breadboard up to a car battery?

 

[go-stang5.0]

As long is your breadboard stuff is setup for 12 volts you will be fine. Electrical stuff will only draw as much current as it needs with the proper voltage. If you run too much voltage you will burn things out. If your dc source was set at 12 volts and eveything worked fine, there should be no problem hooking it up to the battery.

BTW I'm an ME not an EE.

 

[BlackVert]

good news, thanks