i need help doing a conversion

S

steveharrmr23

New Member

• Aug 28, 2009

• #1

i want to know if there is a way to take an ac motion switch and make it so it works with dc power so that i can have it activate a relay instead of a light

 

blueroomelectronics

Well-Known Member

• Aug 28, 2009

• #2

What model is the AC motion switch?

 

S

steveharrmr23

New Member

• Aug 28, 2009

• #3

it is maid by cooper i pulled the chip and everything out of it

if that helps

 

Last edited: Aug 28, 2009

birdman0_o

Active Member

• Aug 28, 2009

• #4

Got any part numbers or model numbers? Based on what you are giving us it is very hard to come up with an answer!

 

blueroomelectronics

Well-Known Member

• Aug 28, 2009

• #5

Why not use an AC relay?

 

S

steveharrmr23

New Member

• Aug 28, 2009

• #6

cause i am putting it in a car and it is dc not ac

 

blueroomelectronics

Well-Known Member

• Aug 28, 2009

• #7

What voltage is it on AC?

 

Mr RB

Well-Known Member

• Aug 28, 2009

• #8

They usually use a capacitive reactance supply (ie a capacitor) to provide the few mA DC supply required by the PIR motion sensor.

It should be fairly trivial to convert it to 12v DC use.