To learn more about Bridge rectifier circuit, follow the link.įilter capacitor, C1 is added after the bridge converter to smooth out the output voltage. The diodes are used to make a bridge converter which is an essential part of the AC to DC conversion circuit. These four diodes are used to convert the 13V AC output across the transformer. 1N4007 has a peak repetitive reverse voltage of 1000V with an average rectified forward current of 1A. The transformer is used to step down the 230V AC to 13V AC.įour general purpose rectifier diode 1N4007 are used here to retify the AC input. The schematic for this AC-DC converter circuit is simple. The project will be an AC-DC converter using Transformer with an input voltage of 230V and output of 12V 1A.ģ.A 1000uF Electrolytic capacitor with the 25V rating.Ħ.LDO or a Linear Voltage Regulator as per specification (Here LM2940 used). In this project, we will discuss traditional Transformer based design which use simple diodes and capacitor to convert the Alternating current into Direct Current and an optional voltage regulator to regulate the output DC voltage. The other type of converter is SMPS or Switch mode power supply which uses high-frequency small transformer and a switching regulator to provide DC output. Simple Diode Bridge can be constructed either with single semiconductor device like DB107 or with 4 independent diodes like 1N4007. One is the traditional Transformer-based linear converter which uses a simple diode bridge, capacitor, voltage regulator.

Dc usb to ac converter