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Posts posted by Ani
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I tried to build the L.D.D.V. yesterday, using a breadboard and
I came up with peculiar readings on the LEDs. ??? I had followed the
schematic from smartkit.
I thought that I had a false ICL7107 and I dismounted the
components. :-[
Today I thought to check the data sheets of ICL7107 and MAN6960 in order to cross-check the connections. Found [glow=red,2,300]inconsistencies[/glow] in the
article schematic ! >:(
For example for the 1's display :
Article : ICL(6) -> MAN(10)
Should be : ICL(6) -> MAN(9)
another example :
Article : ICL(34)
Should be ICL(25) -> MAN(1) and so on... there are many there.
Moreover, the R1 should be 100K, not 180K, I refer to the datasheet
and the "Digital Voltmeter" project
Finally, the LCD dot, is pin number 5, emitted in the schematic.
I am about to search all the errors now and report back later,
after I will rebuild the voltmeter.
I attach the data sheets for further reference. 8)
Hi Billy,
After comparing the schematic with ICL7107 datasheet, I also realized those problems which are already mentioned by you.
If you have rectified those errors, and have drawn proper schematic, please put it on or mail it to me. I want to use it in my lab PSU.
Regards,
Ani
0-30 Vdc Stabilized Power Supply
in Projects Q/A
Posted
Hi everybody,
Can I place LF351 in place of TL081 in this project. I checked the datasheet, both of them are almost similar.
Regards,
Ani