Forums Update, Tips and Tricks - Please Read!

Started by stephaneb 6 years ago13 replieslatest reply 4 months ago2028 views
It's been a few months since the launch of the new forums.  Here are a few thoughts. The thumbsup and beer buttons    If there is one thing that could have a...

AMD chip AM27C256-120DC

Started by Old_Physics 4 months ago19 views
Hello,I have a PSI (Power Solutions Inc.) electronic engine control ECU with the following information:Part Number:  LS20-1-P100-001Serial #:  1601 A  0012Possibly...

Reference Designs for Solar Inverters?

Started by dcomer 4 months ago21 views
Does anyone have links, tutorials, or related information on open source (HW/SW) inverter designs suited for a good SW controlled micro-inverter (DC->AC) for...

Connecting USB generates voltage spikes in circuit.

Started by pcbGuru 5 months ago5 replieslatest reply 5 months ago96 views
Hello,           I have a PCB with an MCU, opamps meant to measure a weak differential signal from a sensor. Every thing works as expected. However when I...

people detectors using antenna

Started by moscardo 8 months ago21 views
Hi guys,after after coming across a 2004 installation by Carsten Nicolai titled "anti" where he used a theremin as an element for presence sensing, I was wondering...

EMC and Crystal Oscillators

Started by EEFmc7 9 months ago1 replylatest reply 9 months ago20 views
I am designing an acquisition system that has two parts, a hub and an acquisition part that collects the signals. The two parts communicate through FPGA Serdes.The...

Very low op voltage low current SMPS

Started by johnpote 10 months ago5 replieslatest reply 10 months ago23 views
Hi everyone,Just wondered if any of you have ideas on designing a very low voltage low power SMPS. It's for a 1 off home build fun project for my shed. I've inherited...

motorola HC05 mask sets

Started by danielek 11 months ago2 replieslatest reply 11 months ago91 views
Hi all,I am a hardware repair technician, and deal with the below MCU with mask sets: Im in need of some help of possibly an engineer that may know?MC68HC705X32...

Serial Peripheral Interface. Master/Slave with FIFO

Started by Ali23 1 year ago1 replylatest reply 1 year ago40 views
Dear Forum participants,I am working on an implementation SPI hardware interface in VIVADO. I have already read a lot of basic information about it.My planThe bus...

Triac not triggering

Started by Julian104 1 year ago1 replylatest reply 1 year ago37 views
I am trying to reproduce an electric fence unit that was discarded by a neighbour. It was left open in all weathers and very muddy. I've cleaned it enough to identify...

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