EMC emission on clock line
Let's learn how to fix emissions due to clock lines. Over the course of my career, I have helped many companies resolve EMC issues. One...
top of page
EMC Consutancy & Design solutions
Francesco Poderico
Apr 303 min read
di/dt related EMI issues on Power supply
In terms of EMI, it is very difficult to have a product that is both efficient and low noise. Today I'd like to discuss some typical...
1,1981
Francesco Poderico
Feb 262 min read
Brackets on PCIE
Last year I worked with Cryptalab on the design of a quantum random number generator card. SSL/TSL experts know how important this is in...
2920
Francesco Poderico
Feb 193 min read
ESD precautions on battery powered devices
In my previous post, I explained why there are emissions in DC-DC converters that are insulated and how to minimize them. I have also...
5430
Francesco Poderico
Feb 72 min read
Emissions due to insulated power supply Part 3
As I mentioned in two previous posts, I have discussed the emission path of an insulated DCDC converter below the frequency of 80 MHz. It...
3520
Francesco Poderico
Feb 13 min read
Emissions due to insulated power supply Part 2
Hello again! The previous post demonstrated how an insulated DCDC converter can generate unwanted emissions at frequencies below 80 MHz....
5720
Francesco Poderico
Jan 293 min read
Emissions due to insulated power supply
As a matter of fact, it is quite common these days that we need some amount of insulation between our electronics and the outside world....
1,1990
Francesco Poderico
Jan 222 min read
Atomic Bomb proof Electronics
The 2023 was the busies time ever. Because of all the projects I had, I barely had time to write articles for EMC. In this year, I've...
3212
Francesco Poderico
Feb 15, 20233 min read
Some post design checking I do
The use of good ECAD is crucial to the design and development of high-quality electronic products. ECAD can provide a variety of...
7530
Francesco Poderico
Feb 12, 20232 min read
Conductive Immunity failure due to a two layers stack PCB
Over the last ten years, I have seen so many PCBs fail conductive immunity that I could write a book about it. In most cases, the errors...
7950
Francesco Poderico
Feb 1, 20232 min read
A note on Analog VDD
These days, we tend to encounter circuits with microcontrollers that incorporate AD/DA converters as a part of their design. As an...
8730
Francesco Poderico
Jan 24, 20233 min read
Radiated emissions due to split planes.
As part of my job, I have been analyzing PCB layouts that have been designed by third parties. Whenever I do this, it is interesting to...
8830
Francesco Poderico
Jan 11, 20233 min read
Conductive emissions issues due to rectifier diodes
There is a feeling in me that sometimes the old books are better than the new ones. As an example, a book by Hnatek called Design of...
1,7340
Francesco Poderico
Jan 9, 20232 min read
A PDN design note (bypass capacitors)
PDN design is not an easy task, and it can be challenging. One of the most common mistakes is to follow so-called "rules of thumb" that...
1,4170
Francesco Poderico
Jan 6, 20233 min read
Typical errors on Ribbon Cables
In today's world, ribbon cables are widely used as a way to interconnect PCBs with each other. They are low-cost and very easy to...
6030
Francesco Poderico
Jan 1, 20233 min read
Radiated Emissions by the heatsinks of microprocessors.
My current client has four heatsinks in his design, so in my solution, I'm designing some precautions to minimize emissions in the final...
4830
Francesco Poderico
Dec 31, 20222 min read
Criteria A, Criteria B and the Criteria C.
Back in the day, when testing was conducted for EMC, it was possible to perform tests, such as immunity tests, during which the device...
3320
Francesco Poderico
Dec 7, 20223 min read
CAN BUS protection.
The CAN interface is the most common BUS inside a car. Some years back, I was introduced to the CAN bus by a good friend of mine from...
1,6597
Francesco Poderico
Dec 4, 20224 min read
Cable length strategy during radiated emissions.
Radiated emissions from a product don't always turn out the way we want. And having a plan for troubleshooting emissions when they exceed...
1,4370
Francesco Poderico
Nov 30, 20222 min read
Common mode coupling mechanism on AC/DC converter.
In a previous article, I discussed the common mode coupling on the PoE (Power Over Ethernet) DCDC converter that I discussed a few months...
1,0150
bottom of page