Hi,
I hope you can help with this. I have made a buck boost converter using the LM2585 (please see attached schematic). I works perfectly and allows me to output voltages from ~23 volts to ~61 volts DC with an input ranging from ~4 volts DC to ~22 volts DC.
However, I use the circuitry with solar cells and have observed that when the current drain is higher than what the solar cells can output, the LM2585 "shuts down" - which is as it should be - BUT it does not resume charging at the set voltage when the solar cells again output more.
I may manually set the output current limiter to a desired value but at some point in time the sunlight intensity will drop below this level causing the LM2585 to shut down again.
I wonder if there's a way to make the LM2585 resume operation when the solar panels again output sufficient power? Or maybe there's a better IC or circuitry to be used?
Assistance is appreciated.
Regards,
Jesper
I hope you can help with this. I have made a buck boost converter using the LM2585 (please see attached schematic). I works perfectly and allows me to output voltages from ~23 volts to ~61 volts DC with an input ranging from ~4 volts DC to ~22 volts DC.
However, I use the circuitry with solar cells and have observed that when the current drain is higher than what the solar cells can output, the LM2585 "shuts down" - which is as it should be - BUT it does not resume charging at the set voltage when the solar cells again output more.
I may manually set the output current limiter to a desired value but at some point in time the sunlight intensity will drop below this level causing the LM2585 to shut down again.
I wonder if there's a way to make the LM2585 resume operation when the solar panels again output sufficient power? Or maybe there's a better IC or circuitry to be used?
Assistance is appreciated.
Regards,
Jesper
Attachments
Last edited: