Power Supply Circuit Symbol

Constant current source the symbol represents an independent current source which delivers constant current.

Power supply circuit symbol.

The fuse will break the circuit if excessive current flows and saves the other devices from damage. It applies dc supply to the circuit. Electrical symbols electronic circuit symbols of schematic diagram resistor capacitor inductor relay switch wire ground diode led transistor power. Power supply symbols cell.

The larger line is positive. Used in circuits where a probability of excessive current flows. A battery is more than one cell. These are represents power supply and bias details in circuit diagram.

Ac supply circuit symbol. Crystal and resonators are important to produce clock pulse for microcontrollers and other circuit. A single cell is often called a battery but strictly speaking a battery is two or more cells joined together. This is called a dual supply because it is like two ordinary supplies connected together as shown in the diagram.

The larger line is positive. Ac supply this represents ac supply in the circuit. Usually depends on other sources voltage. Dc supply this represents the dc power supply.

Some electronic circuits require a power supply with positive and negative outputs as well as zero volts 0v. Symbol with and indicates dc direct current source and symbol with sin wave indicates ac alternating current source.