1. all_about_the_dip

    EMC improvements

    Greetings, I've been in a design for a while for my university. It's a security system based on sound(a glass break detector) but the point of the question is not the functionality of the circuit but the EMC issue. I've tried to reduce the EMI but I would like to ask to any expert any kind of...
  2. finconv

    EMC vs Isolation

    Hi to all, I'm desigining a PCB with an Eurocard size that will be used in a subrack. The board is connected to a mother board internal to the subrack and have some connector on the frontal side. On the frontal side, the boards are covered by a metal front panel (chassis) that will be connected...
  3. Younes Thabet

    What're design rules to consider in order to have the best chance of complying with EMC requirement?

    Hello guys, I am designing a 2 layer PCB that contains a power part (PSU, Relays) and digital one (MCU, digital & analog I/Os, ..)... I looked up some design rules that should minimize EMI but i am not sure if those rules I applied are sufficient for my board to be EMC compliant!! here are the...
  4. L

    I have a question about the EMC test results of a product under development.

    Hello. I work in the incubator product(like a smart farm ) development team. Product development was recently completed and we commissioned a national agency capable of EMC testing. We have been judged nonconforming several times, and we are currently debugging. However, there was something I...
  5. Sajid_Naseeb

    How do I simulate these two different Line Impedance Stabilization Network (LISN) models in LTspice?

    So, I found these models for Line Impedance Stabilization Network (LISN) in two different books. I want to simulate these two models in LTspice, but I don't know which side to connect the EUT and which side to connect the spectrum analyzer and ofcourse, where to connect the source? and how do I...
  6. S

    CDN distorting the wave form too much

    Hi! I've built a CDN (Coupling/decoupling network) and when connecting it to a Surge generator the wave form gets a little distorted, the fall time becomes half of what the Surge pulse produces. I'm new to designing circuits and am not really sure what components to tweak and how. The image...
  7. R

    Electromagnetic interferences - how to handle?

    Hi everyone, I'm working on a little DIY lamp project with a capacitive switch. The kit consists of a breadboard with some components, a battery and its charging PCB, and a 20cm-long electric wire that leads to the aluminium foil used as capacitive sensor. The lamp switch on and off randomly...
Top