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What does this schematic symbol mean?

enter image description here

peteey
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  • Also related: http://electronics.stackexchange.com/questions/38536/what-does-this-circuit-symbol-mean-circle-with-horizontal-line-through-it – dim Jul 21 '16 at 20:53

1 Answers1

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This is a current source symbol.

It provides a constant current (whose value should be written next to the symbol), whatever the voltage across it. And basically, it's the opposite of a constant voltage source (ideal power supply).

Its meaning is not different from the usual symbol with a single circle.

Here are different symbols for current source: enter image description here Source: https://commons.wikimedia.org/wiki/File:Ideal_current_source_symbols.svg

They all mean the same.

  • a is the usual US symbol.
  • b is a variant of a.
  • c is the DIN40700 symbol (german).
  • d is the usual european symbol.
  • e never saw that one before today, actually.

Your specific symbol is actually a mix of a and d. Half-US, half-european. A "melting pot" symbol, somehow.

dim
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