If it is a 78L05 ... then that's where your 3mA is going. (Quiescent Current)
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If it is a 78L05 ... then that's where your 3mA is going. (Quiescent Current)
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DT
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Hi Mr.Darrel !
Maybe I can't explain verry clear !
If @SLEEP command is 'enable', the repause current is 2.5 mA (like without PIC !). But, after couple of press of but1 or but2, but1 don't work more ! Need to disconnect power !
If @SLEEP is 'disable' (by ' in front of her), the repause current is 3.5 mA, and but1 and but2 works without problems ! I do not change nothing in schematic !
Just use @SLEEP (2.5 mA ; problems with but1) or not (3.5 mA ; not problems)
Sorry for my poor english...
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Your problems are NOT in the program, since the same program is running here without any problems.
What is that part I pointed to above?
Where are the Flyback diodes for the relay coils?
Where are the capacitors ... decoupling, and on the regulator?
<br>
DT
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The regulator is ST78L05, with 1x0.1 uF decoupling on output (SMD,on the back side) ; the diodes for relays are 1N4007 (on the back side). Thanks for patience !
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Hi Fratello,
I think what Darrel is saying is the 3ma you are measuring is going out through the regulator as HEAT, and your circuit is working as expected.
Question, if this is a power window switch, do you shut off it's power with the ignition ? You lose more than 3ma because the top of the battery is not clean, and you cannot clean it well enough to not lose it.
Last edited by Archangel; - 9th August 2009 at 09:35.
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Gold is the money of kings, silver is the money of gentlemen, barter is the money of peasants - but debt is the money of slaves
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There simply is no "Happy Spam" If you do it you will disappear from this forum.
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I put one capacitor of 1uF to output of 78L05 and I replace the two diodes from relays with 1N4148, and ...YES !!!!!! Now the consumption is 2.5 mA and BOTH buttons work VERRY WELL !!!!! What a simple solution !!!! I can't explain why now work, but I'm HAPPY ! THANK YOU ALL SO MUCH !
...now I have in mind another thing : at the first start of this module, reading the current of overrload and memorized him in eeprom, for using as reference for further decoupling of relays. I read about this first 'calibration' in "12F675 Voltage monitor" by Frank Miller. Now I don't know how reading the highest level of voltage assuming the variation of tension is something like this ...
PS : Hope not making mistake if I bring here this new subject...
PS2 : A new observation : It's enough to put 1 uF capacitor; don't need to replace the two diodes on relays ! I try this on the other module.
Last edited by fratello; - 9th August 2009 at 11:49.
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Hi, Fratello
you should try the ICL 7663 as a regulator, instead of the 78L05 ...
quiescent current is ... rather interesting !!!
Alain
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Why insist on using 32 Bits when you're not even able to deal with the first 8 ones ??? ehhhhhh ...
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IF there is the word "Problem" in your question ...
certainly the answer is " RTFM " or " RTFDataSheet " !!!
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