Ghetto Startup/Shutdown Control for Inverter

**vcbb5** · 05-29-2004, 08:57 AM

Does anyone know what kind of relays and capacitor Iwould need for this diagram? (preferably from www.radioshack.com, cause I'm goin there today.

)

**elec999** · 05-31-2004, 03:40 PM

Anyone got more technical, electronic schematics. Where does pin 4 and 8 come from. Cant you just use a smal switch to short the two, instead of the relay.

**weekendowel** · 05-31-2004, 03:49 PM

Ofcourse you could have a pushbutton to short them, any short will do

**Laidback** · 05-31-2004, 03:53 PM

Originally Posted by elec999

Anyone got more technical, electronic schematics. Where does pin 4 and 8 come from. Cant you just use a smal switch to short the two, instead of the relay.

I think we're trying to get around using a switch here!

**morgant6911** · 06-01-2004, 09:55 AM

Well, Ill just sit back and wait for you smart people to figure this out for me, heh...

**vcbb5** · 06-01-2004, 09:58 AM

me too.........................

I was thinking two 1 amp relays if your going directly to the inverter's switch. I have no idea about the capacitor. I also don't know how to wire the relays.

**joebagodoe** · 11-29-2004, 10:51 PM

Originally Posted by vcbb5

Does anyone know what kind of relays and capacitor I would need for this diagram? (Preferably from www.radioshack.com, cause I'm goin there today.

)

Mee tooo. I am battling a ground loop but want to move forward to get this going. What relays would we be using to accomplish what this scematic displays and how does one build the capacitor? I've looked and there really isn't anything definitive. Sorry I'm such a noob, I just want to get this completed!

**vcbb5** · 11-29-2004, 11:44 PM

http://www.vcbb10.info/ShutdownController

that's the most recent with pics of my shuttle wired up. I didn't use a cap, so no delay, but it shuts the inverter off after the computer shuts down (leaves on if computer hangs, but that shouldn't happen...much

)

Also uses this for com port trigger: New shutdown controller - software

more in-depth info: I've soldered in my relay 4 different ways and it still won't work. Help please.

**PatO** · 04-26-2005, 09:17 PM

Just reviving a great thread....
Some of you appear to be stumped about the power off delay in this circuit. I've been working on my own shutdown controller do-hickey and have this clip to share. The entire thing isn't ready yet, but I thought I'd share this portion.

All parts are available at Rat Shack, and it's been tested and works fine. Not tested in a car or on a computer, but a breadboard is close, isn't it?

The caps hold the base of the transistor charged for a while. Transistor powers the relay. Very simple. Adjust the caps for your desired time.
My comp does a full shutdown in around 1 minute, so I shot for 1m 15sec+, hence the caps I chose. I haven't tested it at 14+V in a car, more time, I guess...

The +12 input will charge until unlatched, then the caps determine the time until the relay is shut off.

Optional areas are in pink (led's to make the circuit flashy).

**MikeyTampa** · 07-26-2005, 10:45 PM

Ok I have said this a few times but is it possible for people to take pictures of their ghetto shutdown controller? Or make a list of parts so a newb can have a DIY. I don't know how to read wiring diagrams so real pictures would be very helpful...thanks