DC voltage source symbol
Also called DC supply, Voltage source
An ideal source of DC voltage, with its positive and negative terminals marked.
ANSI / IEEE
IEC 60617
What the DC voltage source symbol means
An ideal source of DC voltage, with its positive and negative terminals marked.
ANSI and IEC symbols
Where you see it
Circuit diagrams and simulations, and to show a DC power supply in general.
What is written next to it
On a schematic, the DC voltage source usually carries its voltage, such as 24 V DC.
Related symbols
Frequently asked questions
What does the DC voltage source symbol look like?
On ANSI drawings: A circle with plus and minus signs. In IEC 60617: The same circle with polarity marks.
Is the DC voltage source symbol the same in IEC and ANSI?
Yes, it is drawn the same way in most legends.
Where is a DC voltage source used?
Circuit diagrams and simulations, and to show a DC power supply in general.
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