NEED CIRCUITS DESIGN VOLTAGE STABILIZADOR AC 120V

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FOLKS
I am finding scematics circuits stabilizador voltage AC 120Vac, pLEASE

 

[Homer J Simpson]

I am finding scematics circuits stabilizador voltage AC 120Vac, pLEASE

Search for (constant voltage transformer)

See http://www.powerquality.com/mag/power_correcting_voltage_sags/index.html
as an example.