Recently Active Questions

Ask Question
213,345 questions
Newest Active Bountied Unanswered
0 votes
0 answers
11 views

I'm designing a power supply with both negative and positive power supply rail. The voltage source shown in the schematics is actually the output from the secondary of a flyback converter transformer. ...
user641035's user avatar
  • 37
2 votes
4 answers
237 views

I have to design a transformer with defined parameters such as my primary and secondary voltage, rated power of the transformer, the flux density and the lowest frequency \$f\$, are there other ...
Andy aka's user avatar
  • 505k
0 votes
1 answer
77 views

I am working on a project in which I have to power 32 different motors with different rated currents and powers. The smallest motor has a rated power of 36W and a current of 1A, whereas the largest ...
Community's user avatar
  • 1
1 vote
1 answer
39 views

I have a basic Class AB push-pull amplifier that uses diode biasing for the transistors. The circuit operates from a single-ended supply (e.g., +VCC and ground), and the input is a sinusoidal signal ...
G36's user avatar
  • 18.1k
-2 votes
0 answers
22 views

Circuit design Band pass filter Active filter Multisim And find their objective circuit analysis
Mûřéțã MD Ûšhê's user avatar
  • 1
0 votes
1 answer
114 views

I built a circuit based on the uCurrent Gold meter to measure current within -500uA/500uA range, and I was wondering how can I add a protection to the ADC against: Overvoltage, Negative Voltage, and ...
Russell McMahon's user avatar
  • 155k
0 votes
1 answer
71 views

I am driving a Texas Instruments DP83825I (10/100M Ethernet PHY) using an STM32H573 with firmware I am writing (see output below) on a custom board. So far as I can tell, the board is good (750M pings ...
SnappyRiffs's user avatar
  • 1,430
6 votes
2 answers
326 views

I'm repairing a speaker power supply (KEF LSX), and I'm trying to find a replacement for component L802 (see arrow), this is either an inductor or ferrite bead, but I'm not fully sure. The primary ...
magneto's user avatar
  • 1
-1 votes
0 answers
26 views

I'm trying to get the transfer function of the circuit, I get the instrumentation amp part but later I got stuck again in the the inversor plus the last one (sum point?). Started with the next section ...
riccs_0x's user avatar
  • 574
0 votes
1 answer
207 views

I am building a vacuum tube RF power amplifier for SSB. Here is the link for the amplifier. https://www.qsl.net/vu2awc/ham_radio_india_v/vu2atn_qro/vu2atn.htm I need to clarify first that I am ...
Voltage Spike's user avatar
  • 93.5k
-1 votes
2 answers
106 views

Continuing my amplifier design, I don't know what to do after this. AFAIK I need to make a push-pull AB class power amplifier with global negative feedback because the impedance of AB class itself ...
periblepsis's user avatar
  • 21.6k
0 votes
1 answer
40 views

I am assembling a proximity/motion activated night light using a dpdt 6 prong, 3 position switch (on/off/auto). When set to on, I expect the full voltage (5 volts or so) to pass through the switch, ...
Spehro 'speff' Pefhany's user avatar
  • 452k
0 votes
1 answer
2k views

Recently I lost power on my printer with an BTT SKR 2 board (https://github.com/bigtreetech/SKR-2). I connected my ST-Link v3 to the SWD pins and confirmed I can identify the IC. I am connecting to ...
Community's user avatar
  • 1
0 votes
0 answers
25 views

I am using the following firmware function to detect link up on a Texas Instruments dp83825i (10/100M Ethernet PHY). ...
personal_cloud's user avatar
  • 804
2 votes
1 answer
67 views

Does anyone have a good system for keeping track of boards and what is loaded on them? For instance, if I have 10 Pi or Arduino projects going, I would like to label which board is which. And there ...
brhans's user avatar
  • 15.3k

15 30 50 per page
1
2 3 4 5
…
14223