High output current with a short circuit protection 18V regulator.
It is a high output current with a short circuit protection 18V Voltage Regulator power supply. This is the circuit diagram. In this circuit, an input positive voltage of 24V is used with an output positive voltage of 18V. This power supply can drive positive 18v, 12amp(max), and 75-watt(max) devices. It can be used as a 75-watt (max) device. This power supply uses a voltage regulator LM7818 and BD712 PNP Transistor. DC to DC voltage can be converted through this circuit. This is called a stop-down positive power supply.
Circuit Diagram
Circuit Components
- LM7818 voltage regulator [See Buy Click Amazon]
- BD712 Transistor [See Buy Click Amazon]
- 3.3-ohm Resistor [See Buy Click Amazon]
- 1uf,50V Capacitor [See Buy Click Amazon]
- 0.1uf,50V Capacitor [See Buy Click Amazon]
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Components used:
- 1uf,50V Capacitor
- LM7818 Voltage Regulator
- BD712 Transistor
- 3.3-ohm Resistor
- 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.
The LM7818 voltage regulator fixed-voltage is an integrated circuit (IC). The voltage regulator provides constant output voltage even if its load or input voltage changes.LM7818 is a monolithic 3-terminal positive voltage regulator. It provides a fixed regulated output of 17.3V- 18.7V DC for a variable input voltage range of 21V to 33V DC. The maximum output current is 1 A. The dropout voltage of LM7818 is 2V. LM7818 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 output capacitance of 0.5 pF.
PNP Transistors are made of silicon or germanium semiconductor materials. When an n-type semiconductor element is made up of two p-type semiconductor elements, it is called a PNP transistor. Shows a layer of n-type material sandwiched between two layers of p-type material. It is called a PNP transistor. PNP transistor has three terminals: emitter, base, and collector.
The BD712 is a PNP Transistor. The collector and emitter pins are closed (forward-biased) when the base pin is grounded. When a positive voltage is applied to the base pin, the collector and emitter pins are open (reverse biased). It is a bi-polar NPN transistor. This component has a maximum collector current (IC) of 12A, an emitter-base voltage (VBE) of 100V, a base current (IB) of a maximum of 5A, a maximum of 75 watts, and a Collector peak current of 18amp.
A resistor is a component that resists the flow of electricity in a circuit. It is used to control the amount of current, voltage, or signal level in various applications. The unit of resistance is ohm (Ω). Carbon Film Resistor.Value: 3.3 Ohm Wattage: 2W, Approximate Maximum Current: 1.16A, Tolarence: ±5% Durable and easy to install Small, low noise, precise and stable performance.Long service life.3.3 Ohm Resistor Color Code: Orange, Orange, Golden, Golden.
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 minimum and maximum input voltage of LM7818?
LM7818 minimum and maximum input voltage is 21V to 33V.
What is the minimum and maximum output voltage of LM7818?
LM7818 minimum and maximum output voltage is 17.3V to 18.7V and fixed 18v.
What is the maximum Collector Base voltage of the BD712 Transistor?
BD712 Transistor maximum Collector Base voltage is 100V.
What is the maximum Collector-Emitter voltage of the BD712 Transistor?
BD712 Transistor maximum collector Emitter voltage is 100V.
What is the maximum Collector Current of the BD712 Transistor?
BD712 Transistor maximum collector Current is 12amp.
What is the maximum collector peak Current of the BD712 Transistor?
BD712 Transistor maximum collector peak Current is 18amp.
What is the maximum Base Current of the BD712 Transistor?
BD712 Transistor maximum Base Current is 5amp.
What is the maximum Emitter Base voltage of the BD712 Transistor?
BD712 Transistor maximum Emitter Base voltage is 5V.
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