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    Sam Marty's Avatar
    Sam Marty Posts: 1, Reputation: 1
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    #1

    Feb 5, 2014, 02:01 PM
    Operate a 12 volt DC bell using a 110 volt ac
    I want operate a 12 volt DC bell from a 110 volt A C source. I know that I'll have to through a 110 vot A C relay coil to get the voltage through to feed the bell with 12 Volt DC. My problem is that when I go on the internet they keep showing a moition detection to turn on the lights. I tried that but it won't pull the relay.I called the manufactor and they said it will not do what I want. So do you know of a suite that sells a moition dector that will pull in the relay coil?
    I thank you for any and all info you can give.
    ma0641's Avatar
    ma0641 Posts: 15,675, Reputation: 1012
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    #2

    Feb 5, 2014, 02:57 PM
    Goodwill has loads of phone chargers and computer voltage suppliers that go from 120VAC to 12VDC, many run 1Amp or more. Last time I was there I got a 1200 milliamp DC for $1.50. It was running 13.2 VDC.
    donf's Avatar
    donf Posts: 5,679, Reputation: 582
    Printers & Electronics Expert
    		  
    #3

    Feb 5, 2014, 03:04 PM
    Step down converters are also available from Radio Shack.

    I have several phone chargers sitting in a box in my closet. If interested shoot me a private message and I'll see if I can find one that meets your needs. I need the input voltgge (120 vac) Output voltage needed (12 vdc?) and the needed output amperage
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