Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
Besides spectrum analysers and oscilloscopes what other equipment is needed to be learned to perform testing Analog ICs and blocks? And who defines the standards for such characterization tests? IEEE?
(I would like to hear especially from who has been in such a lab)
For -10 to +10 diodes will clamp from -0.5V to 5.6V which is dangerous for the micro. Opmap clamps between exactly zero and exactly 5V.
So only diode solution is not fine to me. You can simulate and see thats what I saw.
And regarding directly driving PWM is not recommended unless limiting...
Opamp clamps the possible x>10V input to 5V. Analog input of the Nano should not exceed 5.5V. The diodes are for reverse polarity protection.
I can also use Zener but they are not stable for the ADC input. Anyway the input section is not important I can handle it.
But my main worry is during...
I have a small project for part of an experiment where a speed will be controlled by a -10/+10V function generator's analog DC output. So basically the chain will be:
Analog voltage(0..5V)------> PWM(0%..100%)-------> FAN speed(min rpm..max rpm)
To convert analog input to PWM I use Arduino...
Hi,
You wrote "A good transducer output should be push-pull. It can handle currents in both directions." I really never heard of it. Interesting. I thought a transducer can/should only output current one direction.
Thanks for this, I made the circuit but now I will also add the pull up and...
Hello and thanks for the answer,
For practical reasons I will use separate power supplies, 24VDC for transducer and 12VDC for the comparator circuit.
I want to go through your suggestions and try to clarify what worries me.
First here below is the circuit I modified after your suggestions...
I think you misunderstand what I'm asking.
My worry is if the temperature input is unplugged the heater will be on forever.
So I need the comparator's inverting input to go high(which turns off the heater) when the temperature input is unplugged.
I don't want to use the same power supply for...
I was doing on-off temperature control for around 40°C for an enclosed big enclosure manually by switching on and off a 1100W heater(with a fan) with my hand. The accuracy is not very important roughly 40°C is fine. Now instead me doing this, I want to automate this on-off process. Basically...
This VFD drive ACS550-01-012 which was used before has its inputs is wired as L1 L2 L3 and PE as in following diagram without any motor installed causing an RCD to trip the moment I turn on the 3 phase switch:
When I encountered it the power input looked like as follows:
So someone had...
Hello,
I'm planning to implement the circuit below I have drawn. But because there is no SPICE for such components I couldn't verify or test any overall workings.
(left-click to enlarge)
From left to right I will first summarize the signal chain:
The transducer is a uni-polar and balanced...
Hello,
I have a uni polar balanced/differential output transducer where wiring can be seen at page 41 of this manual.
The transducer outputs around +/-200mV and I want to amplify this with a gain of at least 10. The data acquisition board is also differential inputs. And I want this to be...
Dear all,
Here is my final version:
I also attached a rar file where I put the asc file for you to run if you use LTspice.
These mortification came after I read this document.
I used this diagram except with a different LDO.
Let me know if you have any input to this filter. I have added...
Re: Quick way for an adjustable low pass filter with roll-off frequency display
Yes it is changing and the instrumentation also changing. I want to build for test purpose. I also added a diagram in my new post below.
- - - Updated - - -
Hello all,
Here is my final diagram. Since LTspice...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
