9v dc tranformerless power supply circuit diagram

Presented circuit diagram is of 9V DC 200mA transformerless power supply.  A polyester capacitor C1 105J 400v is used in this circuit to step down the AC voltage.  

<img src="/imgs/9v dc transformerless power supply circuit diagram.jpg" alt="9v DC Transformerless Power Supply Circuit Diagram">

Resistance R1 1mega ohm is used to discharge the capacitor.  And resistance R2 100 Ohm is used as a fuse.  Four diodes 1N4007 have been used in this circuit to convert AC volts to DC. 

 Apart from this, an electroletic capacitor C2 1000UF 25v has been used in this circuit to filter the voltage.  A zener diode 9v 1W has been used in this circuit to protect the circuit.  

This circuit is very simple and very easy to use.  The list of all the electrical components used in this circuit is given below.


List of electronics components 

Capacitor 

C1 105j 400v 

C2 1000uf 25v

Resistance 

R1 1M ohm 1/4w

R2 100 ohm 1w

R3 1Ik ohm 

Diode 

D×4

1N4007

Jenner diode 

9v 1w

LED light 

Location: Baghpat, Uttar Pradesh 250609, India

Comments

Unknown said…
Thanks for nine work
7 April 2022 at 03:10
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