Symbol Meaning: "+" Enclosed in a Circle

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    Circle Symbol
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Discussion Overview

The discussion revolves around the meaning of a symbol representing a "+" enclosed in a circle, specifically in the context of analog signal processing. Participants explore its significance and usage in relation to analog adders and signal modulation.

Discussion Character

  • Exploratory, Technical explanation, Conceptual clarification

Main Points Raised

  • One participant identifies the "+" enclosed in a circle as representing an analog adder, suggesting it is used to add analog signals.
  • Another participant questions whether this symbol serves as shorthand for a specific type of circuit or operation, referencing external resources for clarification.
  • A different participant relates the symbol's function to amplitude modulation, indicating a potential application in combining analog signals.

Areas of Agreement / Disagreement

Participants express varying interpretations of the symbol's meaning and application, indicating that multiple views remain without a clear consensus.

Contextual Notes

Some assumptions about the context of the symbol's use in specific applications or circuits are not fully explored, and the discussion does not resolve the exact terminology or definitions associated with the symbol.

nimitzhunter
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Hi,
I am reading this paper and it has a symbol that I don't know what it's called. So for an x enclosed in a circle, it represents an analog multiplier. What does a "+" enclosed in a circle mean? I know it's add the analog signal, but what is it called?
 
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nimitzhunter said:
Hi,
I am reading this paper and it has a symbol that I don't know what it's called. So for an x enclosed in a circle, it represents an analog multiplier. What does a "+" enclosed in a circle mean? I know it's add the analog signal, but what is it called?

Welcome to the PF.

I'd just call it an analog adder:

http://www.mossbauer.org/images/Trends4.gif

.
 
Last edited by a moderator:
In other words, it's symbolic shorthand for a http://www.electronics-tutorials.ws/opamp/opamp_4.html" ? Or what?
 
Last edited by a moderator:
I think I get what it's used for. It's like amplitude modulation where you add together analog signals.
 

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