Newest Questions

3 votes
2 answers
267 views

I'm doing a thermal analysis and need to estimate the worst-case dissipated power in this LDO. My thinking is to do this: (input current * input voltage) - (output current * output voltage) But ...
charles's user avatar
  • 423
1 vote
2 answers
80 views

I`m working on a feedback ladder for an integrated LDO voltage regulator. I would like to implement trimming in it so that you can choose between: 1.867 V -1%, +1% +2% So that you can choose between : ...
Anthox's user avatar
  • 339
2 votes
1 answer
79 views

Basic Explanation of my System: The proposed design is a battery-powered wearable device that integrates advanced sensing and power management features. The system operates primarily from a single-...
Confused's user avatar
  • 4,097
-2 votes
0 answers
36 views

I am building a test rig for computer systems that would contain different single board computers running different software program that would change their power consumption during operation, now in ...
Farid-ur-Rahman's user avatar
-1 votes
2 answers
56 views

I know how important it is to use capacitors to reduce noise in a DC circuit. I use them to ensure Vs is clean for any ...
Jason Crosby's user avatar
0 votes
0 answers
54 views

I have designed a 9V, 2.5A constant current/constant voltage (CC/CV) power supply based on TI's TL431/TL431W reference design ("Designing CC-CV Feedback Circuits With the TL103WB"). The ...
shah's user avatar
  • 79
3 votes
3 answers
122 views

I'm building a formicarium to have below my monitor. With a Pi pico 2 W as controller, powered by a USB3 port on the monitor. I'm a software developer, but new to electronics. The schematic below is ...
Adriaan's user avatar
  • 33
0 votes
1 answer
39 views

In the following bus scheme, that contains one breaker sectionalizing the bus: How is the automation of TR1 and TR2 parallelism performed? I have read that the tap of a transformer must be changed (...
Murilo's user avatar
  • 183
0 votes
1 answer
49 views

Following my LTSpice simulation of the L0103DE triac: I see that this Triac appears to act just the same as two SCR's wired back-to-back (see its datasheet link here). I am a little bit confused by ...
Stephen Elliott's user avatar
0 votes
1 answer
73 views

I want to build an Ambilight analog on a Raspberry Pi. I need to use the HDMI input for this, but the board only has HDMI outputs and no input. Therefore, I decided to use an HDMI to Raspberry Pi 4B ...
Plazma's user avatar
  • 1
5 votes
4 answers
447 views

Wouldn't the diode block any incoming signals? How does the NRST actually work? All I can infer from the datasheet is the pin is responsible for mcu resets, it has an internal pullup-high resistor ...
Tdengineer's user avatar
10 votes
2 answers
716 views

It's my first time working on a board with more than 2 slaves on SPI bus and I'm not sure if I'm doing it right. Also, I can't find any clear instructions how I'm supposed to do layout. The SPI clock ...
Stanislav Ryzhkov's user avatar
2 votes
1 answer
51 views

I’m designing a power control front-end for a 48 V (60 V max) system using the LM5069 hot-swap controller. My goal is to implement a press-to-turn-on / MCU-latch-ON / MCU-kill-power sequence using ...
MICRO's user avatar
  • 560
0 votes
0 answers
42 views

I am working on a problem where I have many SPI devices and many populated SPI inputs on a STM32 H7 Nucleo board. SPI 1, 2 and 3 offer transmitting and receiving data of sizes up to 32 bits, but SPI 4,...
miha medved's user avatar
3 votes
1 answer
149 views

I’m building a zero-cross detector using an LM393 OpAmp (as that is readily available with me). My AC source is a wall adapter (plug-in transformer: 120 VAC → 9 VAC). The output block has three ...
power_electronics_engineer's user avatar

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