Using Secondary Winding on Current Transformer to charge a NiCD

[[email protected]]

I'm trying to design a circuit that utilises a Current Transformer to
create a low current charging circuit on the secondary, for a 2.4V
NiCD with the addition of a few components .

primary 4 - 6A load
1 : 100 = Isec approx 40 to 60mA into a short circuit

Isec ________
-->----O | O--->--| |-----||+
ILoad O | O |Low I | ||NiCD
O | O |Charger |-----||-
--<-----O | O------|__cct___|

Any advice appreciated!



Jim

 

[CWatters]

I'm trying to design a circuit that utilises a Current Transformer to
create a low current charging circuit on the secondary, for a 2.4V
NiCD with the addition of a few components .

primary 4 - 6A load
1 : 100 = Isec approx 40 to 60mA into a short circuit

Isec ________
-->----O | O--->--| |-----||+
ILoad O | O |Low I | ||NiCD
O | O |Charger |-----||-
--<-----O | O------|__cct___|

Any advice appreciated!

Well you need at least a diode in the "low I Charger cct" to prevent the
nicad discharging through the secondary.