Circuit Symbols

Power Supply Symbols

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CELL

Single container chamical reactor. Output DC  1.2V, 1.5V, 3.7V

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SWITCH

It is use to ON/ OFF a device by breaking the circuit. There are many types of switches and symbols.

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BATTERY

Many cell combine together to make a battery.  DC  source

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SOLAR CELL

It converts sunlight energy in to electric current.

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FUSE

Fuse is used as a safety device. When there is short circuit it blows and break circuit.

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TRANSFORMER

It is mutual inductance device used to convert voltage and current  in to different level. 

Electronic Symbols

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DIODE

It is semi-conductor device used to flow current in one direction. 

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ZENER DIODE

It is used for regulating  over limit voltage. 

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TRANSISTOR

Semi-conductor device use to amplify weak signals.

LED

It converts electric current in to light. Apart from regular LED other types are IR LED, Laser LED, UV LED.

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TRANSISTOR

Semi-conductor device use to amplify weak signals.

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IC

Integrated Circuit - it is an assembly of electronic components, fabricated as a single unit

Passive Elements

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RESISTANCE

Electrical resistance is the opposition to current flow.

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CONDENSER

Electrolytic capacitor.  Use for storing charges.

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INDUCTOR

Inductor stores energy creating magnetic field.

BULB

It is used for lighting purpose. This symbol is used for filament bulb.

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CAPACITOR

Capacitor store energy in the form of electric field

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SPEAKER

It converts electrical waves into sound waves.