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.
cathode go to positive tl431
Oh Boy. Thank you all so much!!!!
That did it. Little do I know that Cathode is connected to positive here. Sorry about that.
Thank you so much for the all the help!!!
tl431 negative
Thank you.
I did draw the circuit outline as it is on my breadboard. At a voltage of 24V the LED starts glowing lightly. The power supply has +12V and -12V that's why I labeled it with two numbers. The potential delta is 24V.
On the 220Ohm resistor I am measuring 22.3V. On the...
Hi
I am trying to get a TL431 voltage shunt regulator to work without luck and wonder if anyone can help me ( I know little about electronics but until now thought I can read circuit diagrams.....)
The circuit is a built like the reference circuit in the datasheet with a general resistor...
detecting phone ringing
I second Ramesh. I had almost the same problem the same day (need to detect a 24VAC in a MCU). I tired to completely understand the post but could not :-( A diagram would be best or a more thorough explanation. I know this is asked a lot but would be well appreciated.
opamp van 12v naar 5v
Thank you both.
The background is that I want to build a self controlling ADC. I usually have sensors that provide less than 5V and a combination of digital poti and an OPAMP regulated by a Microcontroller should bump the voltage to 5V for maximum resolution. The...
12v op amp
[I hope this was not answered before but welcome a pointer if it did]
Hi
I want to interface a +-12V OPAMP with a 5v Microcontroller and other 5V compnents in the same circuit board. I could think of the following methods but am unsure which one would work.
1) use a optocoupler...
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.
