How to make a 12V fixed voltage DC power supply | Power supply


How to make a fixed 12V voltage DC power supply | Power supply

12v fixed 1A positive power supply regulator.

This is a simple power supply circuit diagram. In this circuit, an input voltage of 14.5V to 27V can be used, with a fixed output voltage of 11.5V to 12.5V. This power supply can drive 12V, 1amp, and 15 watt devices. It can be used as a 15 watt electronic device. This power supply uses a voltage regulator lm7812 IC. DC to DC voltage can be converted through this circuit. This is called a stop-down power supply.

Circuit Diagram

12V fixed Voltage Diagram

Circuit Components

  1. LM7812 voltage regulator [See Buy Click Amazon]
  2. 1uf,50V Capacitor [See Buy Click Amazon]
  3. 0.1uf,50V Capacitor [See Buy Click Amazon]

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Components used to Simple Mobile Charger:

  1. 1uf,50V Capacitor
  2. Capacitor,50V,1uf

    The capacitor is a Two-Terminal detached part having the Property of Capacitance This Property Zaps (accusing of power) Capacitors with input Voltage. Capacitors Gather Power, Thus it is otherwise called a Condenser. It comprises two Electrical Conveyors that are Isolated by Distance. The Capacitor Stores Charge and can carry on like a Battery. It is fundamental for channel Circuits to Limit voltage spikes, and Smoothing changes in voltage.

  3. LM7812 Voltage Regulator
  4. Voltage Regulator LM7812

    The LM7812 voltage regulator fixed-voltage is an integrated circuit (IC). The voltage regulator provides constant output voltage even if its load or input voltage changes.LM7812 is a monolithic 3-terminal positive voltage regulator. It provides a fixed regulated output of 11.5V- 12.5V DC for a variable input voltage range of 14.5V to 27V DC. The maximum output current is 1 A. The dropout voltage of LM7812 is 2V. LM7812 IC is in compact packaging with 3 pins for positive input voltage/positive output voltage and ground pin. It has internal thermal shutdown, short-circuit and SOA protection, and an outputcapacitance of 0.5 pF.

  5. 0.1uf,50V Capacitor
  6. 0.1uf 50v Capacitor

    The capacitor is a Two-Terminal detached part having the Property of Capacitance This Property Zaps (accusing of power) Capacitors with input Voltage. Capacitors Gather Power, Thus it is otherwise called a Condenser. It comprises two Electrical Conveyors that are Isolated by Distance. The Capacitor Stores Charge and can carry on like a Battery. It is fundamental for channel Circuits to Limit voltage spikes, and Smoothing changes in voltage.

Frequently Asked Questions:
What is the maximum input voltage of LM7812?

LM7812 maximum input voltage is 27V.

What is the minimum input voltage of LM7812?

LM7812 maximum input voltage is 14.5V.

What is the maximum output current of LM7812?

LM7812 maximum output current up to 1amp

What is the number of LM7812 terminators?

The number of LM7812 terminals is three.

What is the peak output current of LM7812?

LM7812 peak output current up to 2.2amp,25"C.

Video: Circuit Test

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