Questions tagged [diagram]

Plan, sketch, drawing, graph or outline designed to demonstrate or explain how something works.

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60 views

4 Channel NOT and AND Gate Symbols

I am designing an ALU for my computer architecture class. The rubric states that we need to simplify each logical part to make it as clear as possible. My group condensed the 4 NOT gates and 4 AND ...
39 views

Interpret the arrows in a circuit diagram of an OP-amp

I have the following diagram of an ideal OP and $$y=-Ae \tag 1$$ simulate this circuit – Schematic created using CircuitLab I'm not used of using arrows for voltages, so I don't grasp the ...
71 views

What does this diamond, arrow and tail symbol means in schematic diagram

What does these symbols in the electric schematic means? I believe the arrow head indicates the direction of flow of current from left device to right device. What is the tail of that arrow symbol ...
563 views

What does the triangle look like in this diagram?

Using my intuition, I would assume the triangle in this simple circuit to be an inverter, but does that look correct? What is this symbol?
54 views

Circuit Diagrams - 2 Input/Output Current Source

I have encountered a situation where I need to draw 1 controlled current source on a circuit diagram with 2 inputs and 2 outputs but I'm not sure what is the proper way to convey this idea. I can't ...
56 views

How to understand these 8086 bus cycle timing diagrams

Please see the two diagrams below. In the first diagram, each state (T1, T2, ...) seems to begin with the clock low. In the second diagram - with the clock high. If we look at the DR/R' signal - in ...
58 views

Circuit analysis - determine the voltage and current on branches

I am working on a cardiovascular model that uses circuit diagram as an approximation and this is the circuit of a bifurcation but I got troubles determining the voltage on the capacitors and the ...
108 views

Diagram shows four wires coming from my two wire power supply, what am I missing?

Completely new to electronics and I’m trying to follow a blog post to wire up a linear actuator to a dpdt relay and photocell. I’m stuck, because the diagram I’m following is showing a total of 4 ...
27 views

Multiple power supplies/sources for LEDs, how/where to ground with data line

I have hit a point in my LED project where I am about to introduce a second power supply (5V 60A Source - Amazon Link Here) and I would like to ensure a common ground. Think of the project as one ...
8k views

This LM317 diagram doesn't make any sense to me

So this is the basic wiring for an LM317 as a voltage regulator, and very little of it makes sense to me. First off, if one pin is for my adjustment, why do I need $R_1$? $R_2$ will give me just ...
30 views

BJT - How does an applied voltage at BE and BC affect the band diagram?

Let's say we have an energy band diagram of a BJT at equilibrium. Then, we apply -0.7V to BE, while 0.7V is applied to BC. How will these voltages affect the band diagram? I would appreciate it if ...
110 views

Arduino Vehicle Remote Start

I am really intrigued in the idea of designing a remote start using an Arduino and Bluetooth connectivity. I plan to wire a relay to the starter switch of a motorbike. I have chosen to do it this way ...
91 views

What is the triangle components in this diagram?

I am reading through datasheet of a voltage translator for I2C (FXMA2102) and I cannot understand the triangle components in the block diagram: Are they diodes to make current flow in one direction? ...
39 views

How can I draw the diagram using few decoders for this truth table?

For the truth table above, abc is the input and xyz is the output. I do know how to draw the diagram using a decoder in case of when I have only one output. How can I draw the diagram using a decoder ...
63 views

In need of wiring diagram [closed]

Could someone link me a simulated circuit wiring diagram for the following circuit: DPDT switch (6 terminals), 2 limit switches,battery pack, motor? I don't have any wiring diagram software.
79 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?
130 views

SRAM-Logic Block Diagram

I am a beginner and I am trying to understand the block diagram of a Static RAM. I want to draw a "256x4 bit SRAM" block diagram. According to some information I collected from the internet I managed ...
205 views

Butt splice electrical symbol

I'm making a detailed electrical diagram which needs to include splices. From researching on Google I couldn't find the conventional symbol for a butt splice, or even a splice, in an electrical ...
339 views

Raspberry Pi Super Capacitor On Battery Loss

I am looking to provide power to my raspberry Pi upon power loss from 5v power supply. It just needs to provide power long enough for the Pi to safely shutdown (with the setup I have, I am estimating ...
67 views

How to diagram power-side and ground-side switches?

I'm an early-stage self-teaching hobbyist. Just as a practice exercise I'm diagramming simple circuits (without looking at the instructions) of DIY kits that I've bought on banggood.com (awesome ...
49 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 ...
171 views

Fan speed control with resistor

Electrician from Australia here. Just having an issue with a heater fan in a bathroom for a client. According to the diagram I have posted, I can wire a second fan up to this and it should all work. ...
45 views

Schematic diagram probe question

I am not sure whether to call it a probe on my schematic diagram or is it something else. I have ATmega328P checking its two digital pins whether both have been connected to the ground. When floating,...
182 views

MOSFET Power Supply Explained

I am struggling to understand how the jumpers at the bottom of this diagram change the voltage of the circuit in this diagram. The input J1 is a 9V wall wart. By my understating the MOSFET only ...
150 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 ...
131 views

What is the best/safest way to wire a 200V fan in the USA, using 120v or 240v? [closed]

I bought a surplus fan/HEPA filter unit for using in a clean room. The wiring diagram is here. I want to connect it to a power cord and plug it into the wall. I know basic electric, but I'm not sure ...
250 views

Why are latches level triggered and flip flops edge triggered?

I know what it means to be edge or level triggered but considering the block diagram or logic diagram of inside of latches and flip flops I cannot see what inside them specifies this property of each, ...
42 views

How do you reduce this simple system diagram for the sake of doing algebraic manipulation?

My guess is that since H(s) is parallel with 1(s) we'd do A(H - 1)? But this is my first ...
127 views

A beginner that could use a few tips on wiring my first circuit involving relays

I am in no way experienced or knowledgeable with circuits or electronics passed installing my own car subwoofers and amps, or swapping out pickups on a guitar which means I only basically know how to ...
413 views

Zero crossing detection circuit correct?

I am working on a DIY AC dimmer circuit with arduino. This project is part of the AC dimmer circuit as mentioned here Since, I was stuck in so thought of retracing my steps and checking each part of ...
49 views

Difference between low signal and no signal for a SR latch?

I am struggling to understand how the SR latch works. When an input has designation 0, this means "low signal" correct? Is this completely different than "no signal"? Doesn't a logic gate need some ...
50 views

What is the meaning of the first gain in the block diagram?

I have do design a circuit based on the block diagram below. I know how to design the PID part but I don't understand what the K=2 is. For the PID I have made the following:
138 views

Calculate radiation power of an antenna in respect to a given antenna radiation pattern and a given angle

I work on a program that simulates the wave propagation of high frequency electromagnetic waves (2.4 or 5 GHz Bands) in 3D. I use a ray launching approach, where the emitted rays approximate the ...
158 views

Understanding how current is 0A in secondary circuit of this potentiometer - misprint, or am I dumb?

I'm learning some basic electronics, and I'm using an old textbook (Basic Electronics for Scientists, Brophy, 1966) to wrap my head around some fundamentals. At the moment, I'm looking at ...
2k views

Wiring Diagram Software for Open Source Projects

So, obviously, there are plenty of CAD software options out there for hobbyists and open source hardware folks to do PCB schematic capture and layout. However, I'm having a really hard time figuring ...
181 views

Is it possible to request a mapped diagram of electricity usage from your provider? [closed]

Whenever I see our electric bill, it just shows the amount owed, and the amount used (in kWh). However, it would be really nice if we could request or pay a premium per month, for a service that ...
479 views

Block diagrams can be different and still works for the same system?

I am an telecommunications engineer who is working now as a programmer. At university we took a class on digital filters, Laplace transformation and working in the frequency and time domain. At the ...
91 views

Transfer function of a System Diagram

I would like to have some help on this system: I have to consider that all initial conditions at t = 0 are null. I've tried some things and I have some answers but I don't know if they are true. ...
171 views

How does the diagram really work? [closed]

Good afternoon, I am a high school student and in my scientific fair project, I would like to do an experiment about wireless energy. I want to implement the resonant inductive coupling. According ...
61 views

Confusion with interpreting a functional safety diagram of a motor driver

I have a problem with interpreting the functional safety diagram of a servo motor driver. It has a long manual here but I will present the parts I'm stuck at. The minimum basic requirement for safety ...
82 views

What does this logic/circuit symbol mean [duplicate]

While browsing through the datasheet of an ATMega324p description of a pin I noticed this symbol which looks like four diodes/triangles pointing at each other. So my question is what is it actually?
46 views

Standard for document in diagrams the power of motor

One machine supplier shipped us a motor with a power in its plate so different (800 kW) to the one indicated in the electrical diagrams (500 kW). We calculate the wires using the diagrams information ...
139 views

what size/kind of capacitor is needed 12VDC automotive

I want to have a light bulb as a daytime running light that is located next to the turn signal (blinker). Since that daylight running light is kind of bright (having a clear lens) I want it to turn ...
63 views

First or last value checker component/funtion [closed]

I am trying to make a circuit that can store the first and last value from a series of values. To do this I'm guessing I need a component to determine if it's the first or last value and this is what ...
113 views

Finding the average and RMS value of this signal

How can I find the RMS and the average voltage of the following diagram?: My work: The RMS: \sqrt{\left(\sqrt{\frac{1}{3\times10^{-3}}\int_0^{3\times10^{-3}}\left(\frac{5000}{3}\cdot t\right)^2\...
137 views

How to Redraw or Interpret This

I am really stumped at this: I've been mulling this over my head for literal hours. I am pretty sure there should be 4 currents, because there are at least nodes with 3 parallel resistors. I just ...
139 views

Iterative simulation of RC low pass filter, strange correction required

To get further understanding in how iterative simulators work, like circuitJS for an example, I decided to make my own of a simple RC low pass filter. The voltage I am interested in is the one across ...
140 views

Ideal Voltage/Current Source Circuit Analysis

I am trying to understand what it going on in this circuit diagram and how to go about solving this problem. I am told to find Vx given that the current in the central wire is zero. Does this mean ...