I would like to create a battery charging control circuit which would use 16.5v across the battery cell and would be limited to a current to 3A max.
When the charging cycle has been completed the charging current will decrease to 100mA.
At this point I would like to switch off the charging circuit by the use of a charge enable control in order to not overcharge the battery.
The circuit would then be closed periodically in order to replenish the loss of charge in the battery through use or loss.
I already have a 16.5v supply and I would like to control an open/closed state between two contacts which will then be used in a separate charge-enable circuit.
Therefore the conditions are:
I would be very grateful for any advice or ideas that are offered.
When the charging cycle has been completed the charging current will decrease to 100mA.
At this point I would like to switch off the charging circuit by the use of a charge enable control in order to not overcharge the battery.
The circuit would then be closed periodically in order to replenish the loss of charge in the battery through use or loss.
I already have a 16.5v supply and I would like to control an open/closed state between two contacts which will then be used in a separate charge-enable circuit.
Therefore the conditions are:
- Charging current to be limited to 3A
- Charging current between 3A and 100mA -> "contacts closed"
- Charging current less than 100mA -> "contacts open"
- Periodically "close contacts" in order to "top up" any loss or use of charge in the battery.
I would be very grateful for any advice or ideas that are offered.