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PROJECT DESCRIPTION

The main concept of this project is to design a circuit which is used to turn off the power supply automatically when no current is drawn by the load. The current drawn by the load can be varied by using the potentiometer setting.

The proposed system uses a rectifier and other electronic devices. Based on the condition of the load, the power supply is controlled by the relay and transistor arrangement in the circuit.

If there is no load, then the relay will be turned off automatically by using properties of a capacitor in the circuit. By using a variable potentiometer, the current can be varied from 3.5 to 8.7A.

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The main concept of this project is to design a circuit which is used to turn off the power supply automatically when no current is drawn by the load. The current drawn by the load can be varied by using the potentiometer setting.

The proposed system uses a rectifier and other electronic devices. Based on the condition of the load, the power supply is controlled by the relay and transistor arrangement in the circuit.

If there is no load, then the relay will be turned off automatically by using properties of a capacitor in the circuit. By using a variable potentiometer, the current can be varied from 3.5 to 8.7A.

PROJECT HIGHLIGHTS
Save Energy by Self Switching PSU.
Non-Microcontroller Project.
Call/mail for Tech Support from 10 am - 7 pm IST.
Easy to use, Self-explanatory kit.
All-inclusive solution kit.
Extensive audio-visuals available.
Branding-free material.
Pre-programmed Microcontroller.
×
Save Energy by Self Switching PSU.
Non-Microcontroller Project.
Call/mail for Tech Support from 10 am - 7 pm IST.
Easy to use, Self-explanatory kit.
All-inclusive solution kit.
Extensive audio-visuals available.
Branding-free material.
Pre-programmed Microcontroller.
BLOCK DIAGRAM
Hardware Requirements
  • Transformer
  • Rectifier
  • Filter
  • Regulator
  • Relay
  • Transistor (BC 547 & BC 557)
  • Resistor
  • Capacitor
  • 1n 4007
×
  • Transformer
  • Rectifier
  • Filter
  • Regulator
  • Relay
  • Transistor (BC 547 & BC 557)
  • Resistor
  • Capacitor
  • 1n 4007
Q & A
Q:  What is self-switching power supply unit (PSU)?
A:  When load is present it automatically switches on the supply otherwise it goes off.
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