P
Patrik
- Jan 1, 1970
- 0
Hello
I'm designing a battery charger for NiMh cells, four of them to be
exact. One way of designing this is to use _one_ current source that
feeds all four cells that are connected in series. Another way of
design is using four separate current sources, on for each cell. This
second way seems most interresting because of the capability to
measure the temperature of each cell and stop loading just the actual
cell that is fully charged.
I decided to load invidually, and began to think about how much
current this charger will require.
Say I use only one current source, set to 1.5 ampere. The charger then
needs just 1.5A, and the GP2000 cells will be fully charged in
(estimated) 1 hour and a half.
Say instead I use four parallel current sources, set to 1.5A. The
charger then needs 6A, and the GP2000 cells will be fully charged in
(again estimated) 1.5 hour.
Or?
This doesn't seem correct, can somebody please tell me what is
correct?
Regards Patrik
I'm designing a battery charger for NiMh cells, four of them to be
exact. One way of designing this is to use _one_ current source that
feeds all four cells that are connected in series. Another way of
design is using four separate current sources, on for each cell. This
second way seems most interresting because of the capability to
measure the temperature of each cell and stop loading just the actual
cell that is fully charged.
I decided to load invidually, and began to think about how much
current this charger will require.
Say I use only one current source, set to 1.5 ampere. The charger then
needs just 1.5A, and the GP2000 cells will be fully charged in
(estimated) 1 hour and a half.
Say instead I use four parallel current sources, set to 1.5A. The
charger then needs 6A, and the GP2000 cells will be fully charged in
(again estimated) 1.5 hour.
Or?
This doesn't seem correct, can somebody please tell me what is
correct?
Regards Patrik