car central locking - Electronic Circuits Projects Diagrams Free

mahinda jayasinghe · 22nd October 2005, 05:00 AM

I want to install central locking in my car.
I installed the latch(relay or solinoid) to the door.
To make it work I need to reverse the polarity.
that means, need to apply +12V to operate (one direction), Need to reverse the polarity to operatr into other direction.

My question is any simple way to togle the polarity every time I lock and unlock.

I have a alarm circuit but it has contact normaly closed and normaly open
when I press unlock button, contacts operates and come back to original position in seconds.

Any idea how to make a togle switch to operate my door lach.

Many thanks in advance

zachtheterrible · 22nd October 2005, 05:28 AM

Is it a remote lock or what? Cuz if it's just a switch in the car all you'd need is a double pole quadruple throw switch I think.

mahinda jayasinghe · 22nd October 2005, 09:09 AM

This is remote lock. Remote part can operate one part of the switch. I need a interface in between the remote switch and the door latch.

mahinda jayasinghe · 22nd October 2005, 08:47 PM

see the diagram

zachtheterrible · 22nd October 2005, 10:21 PM

Or you could use a double pole quadruple throw relay.

musthave · 23rd October 2005, 09:18 PM

here is the a diagram of switch wiring i uses to reverse polarity to small motors just use the proper switch rating for the load.

mahinda jayasinghe · 25th October 2005, 08:59 AM

Thank everybody, I solved the problem.

cbonanno · 12th August 2008, 07:01 PM

Quote:

Originally Posted by mahinda jayasinghe

Thank everybody, I solved the problem.

Dear Mahinda Jayasinghe,
i have the same problem you had with a car central locking i can not find how to revers the polarity. Can you please help by sending me the circuit you used.
Thank you
Charles Bonanno

blueroomelectronics · 12th August 2008, 08:11 PM

Mahinda Jayasinghe hasn't logged in for over 2 years.

cbonanno · 13th August 2008, 05:51 PM

Hello every one, I have a problem with a car cenral locking system the soliniod has 2 wires and you need to revers the polarity for it to open or close. I want it to be operated by the same remote control pulse for opening and closing the door.
Can any one help please with a diagram.
Thank you
Charles Bonanno

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22nd October 2005, 05:00 AM	#1
mahinda jayasinghe	car central locking I want to install central locking in my car. I installed the latch(relay or solinoid) to the door. To make it work I need to reverse the polarity. that means, need to apply +12V to operate (one direction), Need to reverse the polarity to operatr into other direction. My question is any simple way to togle the polarity every time I lock and unlock. I have a alarm circuit but it has contact normaly closed and normaly open when I press unlock button, contacts operates and come back to original position in seconds. Any idea how to make a togle switch to operate my door lach. Many thanks in advance

22nd October 2005, 05:28 AM	#2
zachtheterrible	Is it a remote lock or what? Cuz if it's just a switch in the car all you'd need is a double pole quadruple throw switch I think. __________________ I'm no electronics god, i just talk too much.

22nd October 2005, 09:09 AM	#3
mahinda jayasinghe	This is remote lock. Remote part can operate one part of the switch. I need a interface in between the remote switch and the door latch.

22nd October 2005, 10:21 PM	#5
zachtheterrible	Or you could use a double pole quadruple throw relay. __________________ I'm no electronics god, i just talk too much.

23rd October 2005, 09:18 PM	#6
musthave	here is the a diagram of switch wiring i uses to reverse polarity to small motors just use the proper switch rating for the load. __________________ http://personal.nbnet.nb.ca/alaindes/alss33.jpg

25th October 2005, 08:59 AM	#7
mahinda jayasinghe	Thank everybody, I solved the problem.

12th August 2008, 08:11 PM	#9
blueroomelectronics	Mahinda Jayasinghe hasn't logged in for over 2 years. __________________ Bill Smart Kits build Smart People http://www.blueroomelectronics.com/

13th August 2008, 05:51 PM	#10
cbonanno	Hello every one, I have a problem with a car cenral locking system the soliniod has 2 wires and you need to revers the polarity for it to open or close. I want it to be operated by the same remote control pulse for opening and closing the door. Can any one help please with a diagram. Thank you Charles Bonanno