Dual Power Supply Circuit Diagram With Explanation. 1 5v 3v 4 5v 6v 9v at 1 5a selector voltage regulator. 15 volt dual power supply circuit diagram.
At the input stage we convert 230v ac into 18 0 18 ac and then convert ac to dc using bridge ic after the rectifier section we remove ripples with c1 and c2 capacitors. Usb 5v to 1 5v 3v dc adapter converts usb to 1 5v or 3v output small uninterruptible ups. Rv1 variable resistor has to adjust to varying ve supply.
A zener diode is a silicon semiconductor device that permits current to flow in either a forward or reverse direction.
If you need to have a low ripple voltage than this. Voltage range varies depends on circuit output voltage. This can be done when the center tapped transformer s primary terminals are connected to a power supply. Rv1 variable resistor has to adjust to varying ve supply.