Why this circuit does not working properly

118

02:16:34

I want to implement the following circuit
https://imgur.com/a/Gpel547
But there is something missing because the red led should be on once I connect voltage source
The blue led should blinking when the battery is charging.. 
 could you help me? 

published 6 years ago

Tedski

6 years ago

Remove 1F cap and replace with battery!!! That should sort it!!

farrell86

6 years ago

I am using this cap to simulate battery charging

farrell86

6 years ago

And also the blue led is not blinking and the red led is not lighting up!!

Tedski

6 years ago

Don't think they are meant to flash, if you increase the battery from 1v to around 3.7v the blue led turns off and green turns on and the red comes on if it goes to over charge, if that is not correct, then hopefully someone with more knowledge will put you right!!

hurz

6 years ago

its meant to be flashing, what else the left OpAmp suppose to be? But 473pF is 47nF! Set simspeed ti 1s/s and set the output configuration of both OpAmps for 5V max and 0V min. It does a lot of CFS this kind of circuits within EveryCircuit. Check this and dont forget to reatart in case of CFS http://everycircuit.com/circuit/6043869050044416

hurz

6 years ago

@farrell86, Green goes on when charge voltage is reached, and off while charging only then the blue one can flash if the right OpAmp goes LOW at its out. Anyway its your circuit

ahbrooks

6 years ago

Unfortunately the 1 volt power source is not a battery, so it will never charge. It would be useful if the developer could make one

hurz

6 years ago

tune the voltage as you wish and you can observe any charge state. This is a perfect way to simulate batteries.

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