This circuit shows a steady source of continuous power combined with an output of +5 VDC and +12 VDC to earth has been estimated to design a current of about 900mA Max, enough to power any digital circuit with a relay output, there they have from us that your cascade design makes consumption is the sum total power provided by the 2 outputs. Keep in mind that regulators doit be mounted to a heat radiator.
Vin: 220 Vac
Vout: +12 Vdc and +5 V.
Imax: 900mA
Designed in Proteus v.7.4 SP3.
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