Questions tagged [education]
The education tag is deprecated and should not be used for new questions. Please consider using other tags to indicate your area of interest.
84
questions
1
vote
3
answers
85
views
Decent MOSFET for a beginner to learn from?
I am relearning MOSFETs, but more importantly I would like to focus on building some basic circuits and learning practicality over theory. I have a BSEE but haven't spent much time outside of class on ...
0
votes
1
answer
173
views
If the RPM of an AC generator doubles, and its frequency and voltage doubles, how much does its current decrease?
From what I understand, if the rotation rate of an alternating current generator increases, its voltage increases at the same rate...
I also have learned that the total power produced increases ...
1
vote
2
answers
162
views
LED lights on Christmas card without coin battery?
I’m an elementary / primary school teacher and I would like my students to be able to create Christmas / holiday cards with LEDs, using either copper tape or graphite pens (like circuit scribe) … BUT ...
1
vote
1
answer
358
views
Where can I find information about "Enhanced Policies and Procedures Exam" for IPC?
I'm taking the CSE test for IPC-J-STD-001 and at chapter 7.Certification Exam Overview, I can see that there are 3 types of tests.
Policy and procedure test (10 questions)
Closed book test (25 ...
0
votes
2
answers
116
views
Output voltage of a step-down voltage regulator (or buck converter)
I've the following step-down regulator:
and I'm wondering how to get the following formula for the output voltage:
$$
V_{OUT} = \frac{T_{ON}}{T_{ON} + T_{OFF}} \, V_{IN}
$$
I calculated the current ...
0
votes
1
answer
106
views
Definition of current capacity of a voltaic cell
I'm looking for the definition of current capacity of a voltaic cell, but online I found only sentences in which this locution was used without a definiton.
Can you tell me what is the definition ...
1
vote
1
answer
2k
views
Battery capacity in mWh instead of mAh [duplicate]
I know that the capacity of a battery is expressed in mAh, i.e. A/s (international system of units). Today I used a command in PowerShell (*) in order to get the battery capacity, but the unit of ...
4
votes
2
answers
380
views
TRIAC phase angle control 120 VAC line ripple
I'm working on a phase angle controlled TRIAC dimming circuit (schematic attached below), and I'm seeing a lot of ripple/noise on the 120 VAC input as I near 50% power. I'm wondering what I can do in ...
1
vote
0
answers
93
views
What type of SMPS is this?
What specific type of SMPS is this? I'm working on troubleshooting no power out.
I'm having trouble finding comparable circuits so I can learn how it works. It appears to be some sort of resonant ...
-2
votes
1
answer
59
views
Microcontroller to realize a wireless electrical switch - Suggestion [closed]
I hope this is the right place where ask my question.
I'm looking for a small microcontroller to realize a wireless electrical switch; can you suggest me any microcontroller to do this please?
Thank ...
0
votes
1
answer
90
views
Reading recommendations to better understand how to understand the intended function of a circuit
This is a general question. Suppose I have a circuit like below from CircuitDigest:

My supervisor said that about the circuit that..
[The] circuit does actually involve an amplifier, even ...
1
vote
3
answers
647
views
Sensitivity (or responsitivity?) of an electrochemical sensor - Definition
I read a paper about an electrochemical sensor where there is the term sensitivity expressed in ampere. What is its definition? I found a IUPAC definition here, but the units are ampere/watt or volt/...
0
votes
0
answers
54
views
Different number of bit for the ADC and DAC linked to a \$\mu\$controller - Electrochemical sensor
I am studying an electrochemical sensor (see figures below please) where the number of the bit of the DAC (Analog Devices AD5685R) is 14, whereas the number of the bit of the ADC (Analog Devices ...
0
votes
4
answers
2k
views
Is electrical designer same as electrical engineer? [closed]
A job I'm interested in has a title of "electrical designer". The qualifications are either a Bachelor of Engineering or Electronics Engineering Technology.
Is this not an Engineering job? ...
0
votes
1
answer
186
views
Pseudobipolar signal example - Analog Devices AD7682
What is a pseudobipolar signal? I read this word in the datasheet below:
http://www.analog.com/media/en/technical-documentation/data-sheets/AD7682_7689.pdf
Can you show me an example with a plot ...