Questions tagged [symbol]
An electronic symbol is a pictogram used to represent various electrical and electronic devices
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What is the correct schematic symbol to use for virtual ground?
I'm following the design of a circuit requiring a power supply to provide something the author calls virtual ground, \$V_{gnd}\$. The circuit look like this:
However, I'm using KiCad for the design ...
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2answers
63 views
Cannot Identify Schematic Symbol
I am looking at a VGA to HDMI conversion circuit, and right near the HDMI connector is an array of these symbols:
By the values posted by these symbols, it looks like some sort of capacitor, but I ...
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1answer
483 views
What does this resistor symbol mean?
While repairing a Marantz amplifier using the service manual, I came across resistors with odd symbols (see page 18).
They are trapped between two parallel lines (for example, 3297).
Is this linked ...
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0answers
36 views
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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0answers
48 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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1answer
68 views
NTC PTC thermistor symbol
What is the reasoning behind the arrows on the circuit symbols of NTC (up and down arrow) and PTC (two up arrows)?
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0answers
33 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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3answers
108 views
Multiple different grounds in one diagram
Assume I have multiple electronic circuits and I need to display them working together. Each of them has a common ground symbol. However, the different grounds of the different circuits are not ...
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2answers
127 views
Is this symbol another version of a ferrite bead symbol?
I saw this symbol in the schematic of the ADPD2140z eval board. From what Ive seen online, ferrite bead symbols are usually slanted rectangles with right angled corners. This is slightly different, ...
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1answer
106 views
unknown circuit symbol rectangle with arrow
I've never seen this symbol before but my wiring diagram is full of it. I also have searched for lists of symbols but it isn't among them. Does anybody know what is is? It is from my wiring diagram of ...
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2answers
48 views
Altium pin parameters in symbols
thanks for the many great questions and answers over the years. This is my first question.
I use Altium Designer for capturing designs.
I had an idea to make my processor components a little more ...
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0answers
93 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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3answers
1k views
What are the use cases for a closed solder jumper on a PCB?
I've come across the the symbols for closed solder jumpers in design libraries, and now I came across one in a design. I get why you might include an open jumper that could be solder closed, but what ...
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1answer
71 views
what is the German/Austrian nomenclature(Voltage and current direction) in electronic circuit?
AS I came from a country where we use the french system in defining the voltage current arrows in electronic circuit, I am confused about the German/Austrian system where I see the voltage arrow is ...
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2answers
122 views
KiCAD symbol editor - how to use insert key to duplicate pins with every other number
I'm trying to make this header row in KiCAD. If I place pin 1, and press the insert key, it gets duplicated nicely. The problem is, that pin becomes pin 2, then the next pin 3. I want pin 1,3,5,7,9 ...
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2answers
298 views
Fusible resistor
I'm currently working on an assessment for the electronics part of my PEO and have to complete a resistor report, detailing different types of resistor and their circuit symbols.
I have managed to ...
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6answers
2k views
How can I tell if a MOSFET is enhancement-mode or depletion-mode?
Today, from ignorance I have fallen head-first into the world of MOSFET transistors. In my scramble to find some information on the MOSFET I will be using as a switch (HEXFET actually), I learned that ...
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1answer
70 views
What does this transformer symbol mean
In a balun I have, (model 50-7725 from CPC, datasheet -> http://www.farnell.com/datasheets/2365902.pdf?_ga=2.142463986.1590159842.1535980880-667311346.1535980880)
It shows the Balun as:
What is the ...
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1answer
610 views
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1answer
1k views
What is the meaning of the “lasso loop” on circuit diagram?
I've never seen this "loop" structure in a circuit diagram before.
Pin 6 has a line that loops around the lines from pins 5 and 9.
Pin 7 has a line that loops around all other lines, except the ?...
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1answer
2k views
Symbols: Double-arrow circle enclosed “10” on electronic appliances
What does the symbol that says 10 inside the double arrowed circle mean? I have seen a similar symbol on another appliance that had the number 25
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0answers
45 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 ...
2
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1answer
257 views
What does this symbol in a schematic diagram mean? (wire through circle)
I am looking at the data sheet for the iC-NZN N-type laser diode driver.
What does the marked symbol stand for?
It appears in a number of places, always marking IO pins.
My guess would have been ...
2
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1answer
187 views
Having Trouble Identifying Crystal Oscillator Symbol
I'm working on a circuit implementing the TI CC2640R2F (Datasheet) which requires an external 24MHz crystal oscillator to function. In the schematic (pg. 42), it shows what looks like a normal ...
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1answer
82 views
What does this “Not Installed” symbol mean on the data sheet?
I am designing a circuit that uses the TI TPS561201 buck converter. Reading the data sheet, I am slightly confused with the notation of "Not Installed" next to some of the components.
Questions:
...
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2answers
126 views
SENT protocol output unit is LSB. What does this mean?
I have read couple of datasheet of devices which uses SENT protocol. They define the output between 193 and 3896. The unit is LSB. I think that this does not mean least significant bit?
Example:
...
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1answer
424 views
Symbol for ideal voltage source vs symbol for real voltage source
Wikipedia's article on Voltage source shows the figure below. It says in the figure that the following symbols is an ideal voltage source.
However, elsewhere in the same article they have a circuit ...
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1answer
265 views
What is this triangle symbol representing?
I am getting started with electronics and decided to learn about the inner workings of the L293D. However, I found a symbol I don't recognize, which is the triangle with 3 connections. There are four ...
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2answers
186 views
What are these “X”s / crosses on this schematic's wiring? Traces attached to the metal housing (ground)?
Below is a section of the schematic for the RF modulator of a Nintendo NES-001 system. I am curious what these Xs are that I've boxed in red below. Looking at my own NES-001 and matching locations, I ...
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3answers
1k views
Where does this current source symbol come from?
There's an old symbol for a current source that's just two overlapping circles, reminiscent of a Venn diagram. There is more than one question on here with people asking what the symbol is, but I'm ...
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1answer
523 views
What do the letters W, Z and G stand for on an extension cord (USA)?
G seems to be obviously (G)round, but I have no idea which of the others is Neutral and which is Hot.
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1answer
210 views
Is there a switch that can replace Voltage Controlled Switches?
This is the voltage controlled switch in the LTspice.
Is there a switch which can replace it? I need a switch for a schematic. At first, I used a transmission gate switch, but the simulation of the ...
2
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1answer
87 views
Please, define symbols which are pointed
What do these symbols mean? Please, describe
It is a part of high voltage power supply
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3answers
367 views
Meaning of Ceramic Capacitor markings
I was inspecting a PCB with a magnifying glass and noticed some of the light brown ceramic smd capacitors have 3 digit markings on them. Is there a "standard" of what these markings stand for? The ...
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3answers
2k views
what does this symbol mean?(like a comparator,but there is another symbol in this triangle)
What does the symbol mean?what is this comparator difference?what is its function?can anyone introduce it to me?
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0answers
73 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):
...
0
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1answer
404 views
What does a P-Channel MOSFET symbol with body connected to source mean?
I was just trying to source a power MOSFET, and I stumbled across a very odd symbol for a P-channel MOSFET.
I know that the arrow pointing out means it is P-channel, and I know that the dashed bar ...
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1answer
270 views
LTSpice arbitrary voltage block (bv) simulating full wave bridge rectifier
I'm creating a LTSpice simulation. I need a voltage source that looks like the output of a full wave bridge rectifier.
The simulation includes a sine voltage source (voltage block) line to generate ...
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3answers
3k views
What does this symbol (three connected triangles) mean?
What do the symbols \$GD_{SN}\$ and \$GD_{SI}\$ mean? What is the component’s purpose? The second picture shows its schematic.
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4answers
2k views
What is this symbol near an AC motor?
What is this symbol circled in green in the image? Is related to that induction motor, and I guess it is a french project (if that helps).
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0answers
50 views
Unknown symbol in logic diagram [duplicate]
I am trying to make sense of this logic diagram for an ON Semiconductor 7-segment display driver. What is this logic symbol? I have never seen it before, and I have not seen it anywhere online after ...
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0answers
56 views
What is this component FL12?
I am working on a pcb design and found this in a schematic. I have been told it is a snubber but when I look up a snubber it doesn't look anything like that as the symbol. Any explanation would be ...
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3answers
657 views
What does this diode symbol mean?
I found this diagram in the TI TLV431 datasheet. The diode symbol looks like a zener, but has an addition input on the side. What is this supposed to represent?
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2answers
3k views
Diode in MOSFET symbol [duplicate]
Is there any difference between MOSFETs with a diode in their symbol and the HEXFET?
Also, is there a difference between MOSFETs with a diode in their symbol and other MOSFETs?
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1answer
467 views
Potentiometer schematic symbol help
I cant figure out which pin is the number 1 on the potentiometer and variable resistors within this schematic. I would guess that the circle with a slash through it is pin one but I'm not sure. Any ...
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1answer
120 views
LM3466 circuit symbols, SEN/SRC to ground?
I'm reading the LM3466 datasheet (page 9) and am confused about the symbol downstream of the SEN/SRC pins and R(sen). Is this a ground symbol? If so, why do they use multiple different ground symbols ...
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1answer
218 views
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5answers
5k views
Anyone recognise this capacitor and its symbol (circle with dot)?
Trying to repair an old Hameg CRT oscilloscope and looking at the schematics for the HV Z board I see the following capacitor symbol (in red box):
The capacitor itself looks (vaguely) like this:
I'm ...
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1answer
192 views
Altium - Is it possible to move the symbols added to pins when creating components?
I'm drawing a simple inverter and would like to have the Schmidt trigger symbol inside of it.
Altium places it outside the boundaries. Can't find how to move & scale it. Suggestions are welcomed!
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1answer
370 views
Is there a standard for schematic power symbols?
I notice that some schematics use a single, labelled, symbol for power that looks like an uppercase letter "T", while others use varying symbols (mostly types of arrow) to indicate various voltages; I ...
