Questions tagged [symbol]

An electronic symbol is a pictogram used to represent various electrical and electronic devices

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What's the circuit diagram symbol for a variable reluctance sensor transducer?

I know I've seen the symbol before, it's something like a circle with an open triangle facing in the direction of current flow with a line through the middle. I'm specifically thinking of the ...
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229 views

What does a triangle with a slashed zero in it represent?

In the block diagram for an RF component, there is a triangle with a slashed zero in it as below: What is it meant to represent?
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2answers
459 views

Can I have two (or more) different symbols for the same LTspice schematic? How?

I have two components in my top-level schematic and noticed that the schematics of these components are actually the same. To avoid any duplication of changes done to these subcircuits, it would be ...
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0answers
87 views

Common symbol for PLL

Is there a common symbol for PLLs, either for schematics or functional diagrams? I need a symbol which would be easily recognized as a PLL, without having to draw the phase comparator, loop filter, ...
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1answer
81 views

Is there a standardised noise source symbol for circuit diagrams?

Does anyone know of any standard symbol for a noise source, for example of one wants to represent the Johnson-Nyquist noise, what is best to use?
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0answers
115 views

Female symbol on PCB silkscreen?

You can see the symbol on the upper right hand side of the board, what appears to be a pictogram of a woman wearing a dress, similar to a bathroom sign (?) Wondering what this is.
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84 views

What does this key looking symbol (with 4 bars) indicate?

Im currently studying for my NEN3140 exam and I stumbeld acros this image: I have been poking around in google (and all the symbol questions I could find here) and the closest I got is this (page2): ...
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1answer
48 views

What symbol to use for a electronic circuit breaker in a schematic?

What symbol should I use to electronic circuit breaker in a schematic?
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57 views

Is there a standardized symbol/refdes for PCB mounting points?

I've seen a variety of different parts substituted in for mounting locations, including 1-pin header, test pad, and fiducial symbols. I've also seen a variety of reference designators for mounting ...
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36 views

Proteus 8.6 pin names disappear after creating schematic symbol

I selected "Draw name" after placing the pin, but after I created the symbol (which I placed in a user created library) and placed the newly created symbol in the schematic, all of the pin names ...
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0answers
85 views

Spark gap schematic symbol help

I disassembled a Sharp 42" LCD TV power supply board and discovered 3 glass Spark Gap components (Gas Discharge Tube/Surge Absorbers). I haven't worked with them before and I'm curious about the ...
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1answer
84 views

Power Source Symbol — Which to use (Arrow, Bar, Circle, etc.)?

I'm wondering if there is anyone out there with a definitive answer to why and/or what standard would call out the usage of the different voltage sources. There are Bars, Arrows, Dots, Waves, etc. I ...
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21 views

Data rate with modulation and conventional encoding

I had a rather simple question. Say I had a SISO communications system with an information data rate of 50 Mbps that uses QPSK modulation and a rate 1/2 conventional coding. What would be my symbol ...
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52 views

Addition to DC/AC converter symbol

This image is of a DC/AC converter (inverter), but with the addition of a "C S" block to the left. What is the meaning of this additional block? The wire at 9 o'clock is from an AC supply. This is ...
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80 views

Error: L6218E: Undefined symbol LCD_X_Config in Keil

I encountered a problem working with the EMWIN package in keil, this error message: ...
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101 views

Help with RGBS schematic

I am making up a cable for the below diagram, but am slightly confused about the shielding. Does this mean that the red (earth) should shield the yellow, white (earth) shield the orange, etc? Does ...