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I think you are not started your work yet. First collect all resources regarding your project. Try to make yourself. Then if any problem persists so post ckt diagram and code in forum and ask the experts for solution.
Best luck,..
Yes i want like that if all phasese are off then voltage at pt D is 0
And all phases are present voltage at point D is also Zero.
Only if phase fault then voltage at point D is high can you help to build code.
I draw a schematic in proteus .it will be post soon...
If i convert voltage at point D to 5v Dc using zener diode , can this voltage is safe to interface with pic ic?
I see one ckt whichuses pic 16f628 and that sense three phase and detect which phase is faulty.3 phases are connected to 3 port pins of pic ic through 10k resistors to sense current...
Hello all,
I working on project that ons the relay when 3 phases are on and offs the relay when 1 or 2 or all 3 phases are faulty.
I need direct 3 phase connectins to pic 16f628 no tarnsformers , optocouplers etc. I attached one image that tells when 3 phases are available then what happens. See...
For 339 external pullup resistor of 10k is needed at output check datasheet of 339.
Use 358 if you want to inteface only one ldr to 8051 and it doesn't required pullup resistor.
Regards,
Hamid s.
I am working on device (relay) on off timer project. In that we give device on time and off time manually through switch .time will be displayed on 16x2 lcd display. When ckt turns on and we give on off times then device is on for that much of time and off for given time . After on time...
First if you have Proteus simulator then make your circuit in that
Use terminal in Proteus.
Load hex file and play simulation ....
See at commands in virtual terminal window..
If necessary try to post your code here
1st you remember and chek two chargers are identical one means its current ratings are same,voltage rating can be variable by placing 4148 or any diode in bet +ve of first and -ve gnd of second you can archive 10 v
DEar andre_teprom sir ,
I analyzed the code and comes to one point that when given values are decreased and off on relay cycle is stopped then how can we recall that values i focus on following code only see
if(Timer_On){
OFF_HH = OFF_Time[0]*10 + OFF_Time[1];
OFF_MM = OFF_Time[3]*10 +...
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