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Power supply for max 100mW from powerline (none isolated)

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Cor Jansen

Jan 1, 1970
0
Hello All,

I need to power a smal circuit (about 3 Volts, 30mA).
This circuit need to be powered from the powerline (220VAC).
The circuit need not to be isolated from the powerline.

I searched the internet for a simple solution for this, but could not
find it.
I hope there are special chips that do just this.

Does anybody has an idea?

Any help is welcome.

Thanks and greetings,

Cor Jansen.
 
Hello All,

I need to power a smal circuit (about 3 Volts, 30mA).
This circuit need to be powered from the powerline (220VAC).
The circuit need not to be isolated from the powerline.

I searched the internet for a simple solution for this, but could not
find it.
I hope there are special chips that do just this.

Does anybody has an idea?

Any help is welcome.

Thanks and greetings,

Cor Jansen.

3vDC?
The simplest solution is a diode and capacitor in series with the line
in and another capacitor across the load. You can use a zener to limit
the voltage across the load.
I have used this for SSRs
 
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