All Questions
Tagged with electrical-engineering circuit-design
30
questions
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answers
55
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Strange problem with Impedance?
I've encountered a strange problem with a 12V key-fob device. We use a device to remote control a relay via a key-fob transmitter. It's installed in a plastic box that is mounted at an operator ...
0
votes
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34
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How do I draw a circuit for a conducting loop inside a solenoid?
To solve a homework problem, I need to redraw the following diagram in circuit form.
The large blue circle represents the solenoid. Inside the solenoid, the two gray semicircles represent a wire loop,...
1
vote
0
answers
49
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What should be the clearance and creepage for the line to line 440 Vac and line to neutral 240 Vac of the three-phase system on PCB?
Also is there any link to calculate this as per the UL and other industrial standards
- 11
1
vote
2
answers
316
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Precisely control voltage output
I think the component name is a rheostat- is that what allows you to control the voltage output please? I want to control it in steps close enough to 0.1 ish volts? So I would like to attach a knob ...
- 13
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1
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58
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How to Supply two different DC voltages using High Current
I'm trying to function a 12V stepper motor(>2.5A) and five 6V servos(>3A). Are there any reliable circuits that can output both these voltages and a high output current since there will be some ...
- 33
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2
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151
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Circuit with Contradiction
What would happen in real life if you made a paradoxical circuit (a circuit whose output is on iff its output is off). Something like this:
Would the discrete model break down and the output end up ...
1
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1
answer
96
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What are the charge/power connector of restaurant order pagers / buzzers called?
They look like snap buttons and used for stacking pagers for charging.
Closest things I can find are socket screws and cap nuts.
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votes
1
answer
42
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Explanation for photovoltaic circuit
My background is in Environmental Science, although I have recently been taught in the basics for energy engineering especially for solar panels.
I'm currently using PVsyst to build solar panels on a ...
- 105
1
vote
1
answer
483
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Building oscillating magnetic field circuit
I wanted to create an oscillating magnetic field using an electromagnet which is rated for 12V continuous duty. I was thinking that I need an arduino to control the electromagnetic circuit by using a ...
- 153
2
votes
3
answers
800
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How can I calculate overcurrent from over voltage for the AP9101C IC
I designed a battery charging, protection, and boost circuit for a project I am working on. However, I made a complete noob mistake and forgot to find the overcurrent value for the battery protection ...
- 21
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votes
2
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229
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Voltage at node A respective to the ground
I want to calculate the voltage at node $A$ respective to the ground.
$R_1=1.8\text{k}\Omega, R_2=3.8\text{k}\Omega, R_3=1.8\text{k}\Omega, R_4=5.8\text{k}\Omega, R_5=2.4\text{k}\Omega$ and $V1=4.3V, ...
1
vote
2
answers
246
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Designing a loaded voltage divider?
I was wondering how to design this circuit in depth, since I have no idea what to do.
- 11
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1
answer
73
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Voltage controlled switch?
So I am in the process of working on a rather strange and specific project. I am looking to capture as much energy as possible from a small steam turbine using a DC motor and then use that to power ...
1
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0
answers
313
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Difference between a positive and negative adjustable voltage regulator (LDO's)
I am having trouble understanding the difference between positive and negative adjustable voltage regulators (LDO's). There are circuit diagrams for the positive LDO's such as the following:
I am ...
- 11
0
votes
1
answer
691
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Utilize multiple vehicle power outlets to increase wattage capacity of inverter
I'm trying to determine whether it would be possible to use multiple power outlets in vehicle to increase the wattage that can be obtained.
This question is driven from a desire to install an DC to ...
- 106