james tornes wrote:
> I have an interesting problem. I have a mains circuit that looks like thi=
s:
>
> mains---110VAC--+ on/off switch +-------------------+ load
> +----------mains return
>
> The load is a regular incandescent light. I need to insert a 5V device
> in series with the switch. The problem is that when the switch is off,
> then the device also goes off. I have heard that leakage current could
> be a way to still have a mostly functional switch and still be able to
> provide power to the 5V device. But I haven't been able to find any
> designs/circuits that show this. Anyone have any advice?
>  =20
How much current does your device need?
Does the devices power supply need to be referenced to any particular point=
?
Is the wattage of the bulb known in advance?
Does the device need to work with the light both on and off?
> Jim
>  =20

--=20
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