Digital Programmable Gain Amplifier
I read your post which is about, Digital gain control of Op-amp. I have some questions to ask, if possible. Please reply ASAP. I am student and I have a lab project to work...
Category: How What Why
Isolated Full-duplex Serial Interface
I would like to build Optoisolated RS232 interface. I’vesearched a little bit, and I came across your design:
Winding Insulation Resistance Measurement
I am working in power plant. we have a problem on one of gas generator. the problem is that low winding insulation resistance of generator rotor. it read 800 k ohm where the other...
Power Oscillator Circuit Design
I am trying to find a circuit diagram for a long time, which will give me the o/p Characteristics as 12V, 0.5A & 4000 Hz (or variable frequency). Will you please help me in...
Sound activated RF remote relay
I am to build a circuit that operates off some kind of sound input into a sound activated circuit, preferably some kind of voice operated relay circuit. This relay is then to operate some...
HV and Jacobs Ladder or Climbing Arc
I mess with HV stuff and recently I went to adjust my Jacobs ladder with it still switch on I griped each leg of the ladder with my hands . I had a zap ...
Metal Detector Circuits Problem
With the best wishes for you. I found your address and browsed your website. I have a question and hope to take your help and answer. I need to good metal detector’s circuit and...
Significance of Current Loop 4 to 20 mA Standard
Subject: delabs comments – Tell Me. message: why 4-20mA standard. why not 2-22mA or any thing else Mail from MU they knew you would come up with a question like this. so see this...
