1. E

    Honda heated grip controller

    I have Honda heated grips on my motorcycle. The heating function works, but the LED does not light up when the heating is turned on. I have conducted some measurements myself and connected the controller to a lab power supply, but I cannot simulate the setup. Also, I cannot measure/find some...
  2. tienk

    What am i doing wrong here?

    Getting "could not open file.." shown in the first image, when trying to do transient analysis, is my circuit wrong or am i missing something
  3. M

    Different readings when testing a diode on-board and off-board

    Hello, I have a two identical PCBs (one faulty and one non-faulty). The PCB has a buck converter (AOZ1212) to convert 24V to 4.5V. This converter uses a Schottky diode as flyback/freewheeling diode. When I was debugging the faulty board, this diode read 0.2V in forward bias, and 2.3V in reverse...
  4. B

    Preference for Connecting Batteries to PCBs

    Hello, I'm currently working on a project that involves connecting a 9V battery with a T-connector to a PCB, and I'm looking for some advice on the best way to go about it. Right now, I'm considering two options: Terminal Block: Using a terminal block to connect the wires from the connector of...
  5. tienk

    Why am i getting a 5 pin comparator when downloading an 8 pin?

    beginner here, i imported a spice file into ltspice but in the datasheet it says its 8 pins but in ltspice its 5 pin, did i do something wrong or am i missing something
  6. ponas.jonas

    Force Sensitive Resistor Design Question

    Hi everyone, I wanted to post in this forum to ask a question regarding a PCB I have designed. I have just received my PCB and am trying to program it, but I am not getting any values, so I immediately thought that something is wrong with my electronics... I am using a force sensitive resistor...
  7. jma2388

    LM2679-5.0 Switching Regulator Design

    I am designing a constant 5 volt output switching regulator that bucks 12 to 24 volts down to 5 volts while supporting 5 amps. It is used to boot up a Raspberry Pi with a 10 inch screen. At 12 volts, the Pi will boot up fine. At 24 volts, around halfway through the bootup, the regulator will...
  8. M

    Circuit board to amplify and filter the electrical signals from the piezoelectric disks

    Hi, im working on creating a step counter using piezoelectric disks. The idea is that I want to use the disks as sensors and be able to read their voltage and current values with an Arduino Uno. Im also using a voltage sensor, the sensor that will be used is an ACS712 that can detect the flowing...
  9. TommasoB

    Custom Flight Controller Board design - Suggestions and Criticisms

    Hello community, My name is Tommaso Bugliesi and I am currently designing a custom flight controller board. It's not just one board, but rather two boards to be stacked on top of each other using rubber dampers. The hole spacing is 30.5mm, and the overall dimensions of the two boards is...
  10. TommasoB

    ESP32 based Custom Flight Controller - Drones

    Hello, My name is Tommaso Bugliesi and I am a mechanical engineer currently engaged in the development of an open-source flight controller centered around the ESP32 chip. While this project is ambitious, I find myself encountering challenges in the realm of PCB design—an area where my expertise...
  11. X

    Circuit for reading weight and displaying into LED

    Hello, I want to fabricate a PCB capable of reading weight from between 0 - 100 lb, and then take that data through some microchip PIC and display it to a LCD or LED. I'm not very familiar with load scales, but I was curious if there were any ideas or insights into the proper components needed...
  12. Ivan Badal

    book recommendations about PCB Design

    this post must be removed
  13. R

    How do I recharge a 3.7V battery that has a wire like this, without the PCB?

    I'm thinking that maybe there's something I can buy that has a charger port for the plug/connector in the picture. (P.S.: If there's no such thing, pls tell me as I would just bring this to an electronic repair shop or something)
  14. Aarmin

    Schematic Review: Rocket flight controller + Advice

    Hello! This is a schematic i made for my model rocket based on an MPU9150, BMP280 and ATSAMD21, along with an swd programmer to flash the chip. Would like to know whether all the connections made are fine, and how i can add servo control along with pyrochannels using mosfets Thanks!
  15. Younes Thabet

    What can happen to a PCB burnt during hot air soldering?

    Hello all, I was soldering an SMD component and I accidentally used a higher temperature and airflow to solder it so I burnt the PCB and a bubble appeared around the area as seen in the image below. Is this bad? will this issue affect the functionality of the PCB? What can I do to fix this...
  16. saviobezerra

    Help with Protomat E33

    Hello! First of all, I'm sorry for the bad English, I'm using Google Translate for most of the text. I'm doing an internship at university in an electronics lab and I've been asked to print a capacitor using a Protomat E33, however, it's my first time using such a machine, I'm not sure I'm...
  17. A

    Capacitor snapped from motherboard Supermicro

    Recently,i snnaped ,a capacitor,from my motherboard supermicro x9dae...im a newbee on things related to circuits...i try to find the capacitor online for replacement...but is so confusing for me...if anybody can read my post,maybe can guide me to find ,or a link where to find it...many thanks..i...
  18. Qasimhmdn

    Help with trouble shooting sit stand desk control box PCB

    Hello guys, so i have an electric sit stand desk and it stopped working a while ago, i opened up the control box model TC15L from TI motion, and saw the IC in the pictures was fried so much so that it was impossible to read the part number off of the IC. Upon touching this IC, it blew away like...
  19. C

    TP4056 Lipo charger with voltage regulator for OEM issues

    Hi all, Im relatively new to PCB design and schematics, A new skill I'm learning at my company is to try to bring some components in-house. We currently have a PCB in place where just voltage regulates 5v from the wall plug and the standard 3.7v from the battery to the OEM but it does not do...
  20. K

    How can I place the Capacitor on a PCB that receives a single power supply and outputs multiple power out?

    Hello I made a circuit that turns on/off the fan according to the temperature and controls the FAN speed(PWM) and this is my PCB design this is 2 layer board and both GND plane the FAN Speed Control motor is 3A and the Comp FAN motor requires 4 A power before this circuit, there was no...
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