Questions tagged [terminology]

Terminology is the studying of the terms used to identify things. In electronics, just like any other complex human endeavour, using the proper terms helps in understanding.

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72 views

Square wave, triangle wave etc. not defined in International Electrotechnical Vocabulary (IEV.) Are they not standard terminology?

Why are there no definitions for typical terms like square wave, triangle wave etc. in the International Electrotechnical Vocabulary (IEV)? Are these widely used descriptions not defined by ...
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2answers
46 views

What is the origin of the “iso [frequency/voltage/power]” terminology?

In the VLSI and computer architecture world, it is common to hear terms like "iso frequency" or "iso power" when comparing the performance of different designs. My understanding is ...
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1answer
49 views

Is there a commonly used name for a “local ground” or “local common”?

Suppose we have a circuit that measures some external voltage like so: simulate this circuit – Schematic created using CircuitLab We will assume that the circuit is powered by batteries, and ...
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1answer
72 views

What is meant by “T” and “aT” here?

https://ctms.engin.umich.edu/CTMS/index.php?example=BallBeam&section=ControlFrequency I am trying to learn about lead compensator from above link But i have bit confusion regarding two terms,"...
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47 views

Terminilogy for AC/DC classification

For example if you wanted to created a datasheet with an item specifying that the device requires AC power, what would that item be called. My first thought is current type but that does not seem ...
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1answer
126 views

Can it be said “transistor open/closed” and what does it mean?

I some other language literature I used to read it is common to find a text that translates directly into English as "transistor open" or "diode open". This means that transistor ...
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6answers
15k views

Why does 60 Hz mean 60 refreshes and not 120?

A light bulb using alternating current at 60Hz turns on and off 120 times per second but in a monitor 60Hz means 60 refreshes per second. Why is that? Shouldn't 60Hz mean 120 refreshes?
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1answer
320 views

What is the difference between a USB port and a USB receptacle?

The Wikipedia article USB hardware states: Standard connectors The type-A plug. This plug has an elongated rectangular cross-section, inserts into a type-A receptacle on a downstream port on a USB ...
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2answers
552 views

What is meant by “plant” in control system?

What is meant by "plant" in control system? Does it also means systems like DC motor or it only includes large systems like chemical (fertilizer or cement) plant?
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Name for old-style (purple-tinged) white LEDs?

Older white LEDs (ca. 2005-2010?) had a distinct purple tinge while modern ones have a spectrum much closer to a blackbody. I rather like the look of the older style and would like to purchase some ...
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38 views

ETSI Definition of “Channelized system”

ETSI standards EN 301 489-1 and EN 300 330 use the term "channelized" (system or equipment). But I could not find any definition for "channelized" in one of the standards or any ...
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1answer
252 views

What's is yx8018b and what is it symbol?

I am trying to fix some solar lamps, that contain pretty much only a handful of electrical components: A switch a solar panel a 1.2 V AAA batery an LED a resistor (inside its "home" it ...
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57 views

How do you call wire pins that can be used as jumpers with your breadboard?

I can't seem to find these things on electronics distributor websites. There is a bunch of various pins and connectors but I can't find these among them. What are they called? I tried "dupont 2.54mm ...
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1answer
66 views

VSWR WOW measurement

I see the term WOW in spec sheets and drawings. I understand the term means a variation in a measurement (VSWR, Insertion Loss, Phase) over 360 degrees of rotation. But I have never correlated how the ...
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2answers
51 views

Jacket diameter of coaxial cable : how to read those documentations?

Before anything: I am not an electrical engineer: I don't know very much coaxial cables (just the very basics). I need to do some orders of magnitude calculation of heat transport of typical coaxial ...
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2answers
36 views

Coaxial cable terminology : how to read?

I need to understand the nomenclature used for coaxial cable. For example: UT-085-SS-SS, or UT-085-SS, or UT-085-NbTi As far as I understood, the number 085 here is the total diameter of the cable ...
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2answers
110 views

What does the T stand for in “T flip-flop”?

The meaning of the letters J and K in "JK flip-flop" was previously discussed here, and the meaning of the letter D in "D flip-flop" was previously discussed here. What does the T stand for in "T ...
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3answers
127 views

Is the term “byte” useless now? [closed]

As all of us probably know, a byte is 8 bits that can store 256 different binary numbers. This term feels like it can only be used for 8-bit computers that actually use bits in groups of 8. But most ...
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2answers
117 views

What is this output stage?

simulate this circuit – Schematic created using CircuitLab I've been calling this push-pull but apparently "push pull" is another name for totem pole now.
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3answers
4k views

Difference between “|Z|” and “Resistance” in capacitor datasheet?

I'm shopping for capacitors, and I expect good capacitor datasheets to have a graph of |Z| (the magnitude of the capacitor's impedance) as a function of frequency. I was confused when I looked at ...
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71 views

Collective Term for (FPGA, GPU, CPU, DSP, NPU)

I am looking for a collective term for these compute blocks (FPGA, GPU, CPU, DSP,NPU). I found it in some journal but I cant recall. I want to use it in an article I am writing. P.S I made up to term ...
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2answers
70 views

What is the correct name for a footprint that connects to a panel mount component?

Let's say you have a panel mount switch. When you create the footprint for this switch, you aren't creating it for the switch itself, rather, you are making a footprint with holes for the wires that ...
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1answer
37 views

What is “tap line”?

I am reading this article (https://arxiv.org/ftp/arxiv/papers/1901/1901.02069.pdf) where I have come across this sentence: "we first designed a parallel coupled Chebyshev bandpass filter as shown in ...
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1answer
83 views

What does the T stand for in AXI4-Stream's TDATA, TVALID, TREADY, etc.?

In the AXI4-Stream protocol, the names of the signal that make up a stream are prefixed with T: TDATA, ...
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2answers
2k views

What is smallest addressable value in an octal number called?

In a binary number, the smallest addressable value is called as a bit. In a decimal number, the smallest addressable value is called as a digit. In an octal number, what is the smallest addressable ...
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1answer
50 views

Confusion regarding the term“locking” in PLL

I am trying to learn PLL from a website https://www.allaboutcircuits.com/technical-articles/what-exactly-is-a-phase-locked-loop-anyways/ ]1 I came across a sentence containin[g the term "lock" ...
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1answer
47 views

Layman explanation of “dynamics” or “dynamic behaviour”

I often read the term dynamics or dynamic behaviour in electrical engineering especially in control systems course What is meant by it? Is it means that the system whose internal state/properties ...
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2answers
4k views

What's the meaning of Electrical Inches?

I was reading a PCB design notes and guidelines from Xilinx for their 7 series FPGAs and came across this sentence: The capacitors should be placed as close as possible to the FPGA. Any placement ...
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3answers
118 views

How to classify power electronics components in 2 main groups?

I'm working on preparing a course about power electronics, and with my basic search conclusions. I thought that if it's possible or acceptable to classify the power electronics components in 2 main ...
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2answers
271 views

Definitions of elements, nodes, branches, loop, mesh for a network with short circuit

CONTEXT This question is intended to highlight the lack of precise definitions of basic circuit terminology that I have found. For example, consider the following definition of branch. "A ...
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4answers
3k views

Why does `buck` mean `step-down`?

I just read about buck converters and boost converters and buck/boost converters. Great stuff. But, why is a step-down converter called a buck converter? I tried to research this myself. According ...
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3answers
951 views

The term Feed-forward and its meaning?

I am trying to understand the technical meaning of the term 'feed-forward', when and where it can be used and where it cannot be used? I have seen this term in various different areas. For example: ...
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1answer
750 views

What is this kind of symbol meant to be?

I found this picture in some old labnotes where one wants to determine the vacuum permittivity \$\epsilon_0\$ by using a resonance circuit for a sender and recipient each. However, I don't understand ...
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1answer
84 views

Are there round header pins?

I am attempting to get two probes through a sealed case to detect the pH of a fluid like water. My thought was to get two header pins and seal them with a custom 2mm diameter seal. However it looks ...
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1answer
45 views

What is meant by the term “baseline noise” in this context?

I came across this article about oscilloscopes. Under the figures and scope screenshots there is a term called "baseline noise". I googled but it turned out this baseline noise is used at different ...
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3answers
258 views

Is space division multiplexing really multiplexing?

I don't know much about electronics, but happened upon the Wikipedia article for Multiplexing, which defined it as: a method by which multiple analog or digital signals are combined into one signal ...
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2answers
49 views

Need a 48v relay but I don't know the terminology

I need a little terminology help so I can search for and obtain the correct relay. The relay will control a 48v 32a circuit. It should be normally open unless a signal is present. If the signal is ...
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2answers
143 views

Electrodes and number of pins in vacuum tubes

I am confused regarding the terminology 'diodes', 'triodes' etc and the number of pins in these elements. If a diode has a cathode, an anode, and a supplementary anode (the control grid or plate) and ...
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1answer
177 views

DC-DC Converter - Why is the input voltage called Vg?

In the textbook I'm reading (Fundamentals of Power Electronics 2nd Ed, Erickson and Maksimovic), the input voltage for several different types of converter circuits is labeled Vg. The textbook gives ...
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0answers
53 views

Control a solenoid position “in / out” with power only (no spring)

I'm going to use a < 5$ solenoid (vertically oriented) that has to press something. If I understand well, a linear solenoid like this one: moves to one precise position when powered, but when you ...
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2answers
78 views

What does “heavily decoupled voltage source” mean in this context?

Regarding the following paragraph: To measure the amount of input-referred noise, the input of the ADC is either grounded or connected to a heavily decoupled voltage source, and a large number ...
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2answers
242 views

Calculating voltage drop and current use of an IC

I’m trying to figure out the voltage drop and the current used by a Johnson counter from a data sheet and am feeling a little lost. In particular I’m looking at a CD4022B from TI. I’m looking at ...
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1answer
475 views

what is the difference between rated power and power rating?

Very appreciated if anyone can explain the difference between rated power and power rating. I used to see both of them in electronic magazine.
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148 views

What is a “digital” servo motor?

ServoDatabase lists various different servo motors, and describes some as "analog" (e.g. SG90) and some as "digital" (SG92R). "Digital" servo motors are apparently better (they seem to cost more, ...
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3answers
4k views

What does a resistor value of “NOM” mean?

On this schematic of part of the Apollo Guidance Computer (found here), some resistors have a value of "NOM." According to this question, "NOM" stands for "nominal" when it's found in a datasheet, ...
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1answer
241 views

Is there an industry term for IC “drop-in” circuits used for malicious or clandestine purposes?

There is a vocabulary for code used for malicious or clandestine purposes. Terms include malware, virus, trojan-horse... In a large IC with millions of transistors, it is feasible to produce a ...
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1answer
75 views

Help deciphering abbreviated terms in technical manual

I'm having trouble deciphering some abbreviations in a parts list of capacitors from a technical manual for an old (80s-90s) computer. I've managed to work out that "CPCTR" stands for "Capacitor", ...
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Is it correct to say that a smartphone cable is only a “1A” cable?

A store owner said that some lower quality smartphone charging cables are only "1A cables", so if you want 2A, those cables won't do the job. Is it correct to say a cable is only 1A? Does the metal ...
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2k views

What is meant by 'local' in local oscillator?

We know that a local oscillator (LO) is an electronic oscillator used with a mixer to change the frequency of a signal. But what do we mean by 'local'? How is 'local oscillator' different from ...
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2answers
92 views

Two-port circuit with input/output duality

Suppose I have a circuit with two ports. One port is considered the input, and the second port is considered the output. Assume it's described via $$V_{out} = \frac{V_{in}}{2}$$ Now assume there's ...

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