R
Richard
- Jan 1, 1970
- 0
I have a constant current transformer - along with capacitors and chokes
and a PCB with electronics, from a Motorola or Schumacher battery
charger (Motorala Type: 25E83071P03 or Schumacher 93-013-419). I think
made in 1990. Outputted 14.25V or 13.8V depending on which outer taps on
secondary was chosen.
I've no idea what the electronics did on the PCB, but centre-tap (CT) of
secondary is positive and the outer taps go to chassis via rectifiers.
CT goes to a capacitor of 97,000 uF, and then a choke, then another
capacitor of 73,000 uF.
Wires (probably "signal" voltages) from both of the outer taps of
secondary goes to the PCB.
The tank circuit has the capacitor. But both ends of the capacitor go to
the PCB - one of the wires via an iron-cored choke (not some small RF
choke).
Okay, the question is, can a basic PSU be made with the following items
only?:
* CVT
* both rectifiers
* both "smoothing" capacitors
* smoothing choke
* capacitor for tank winding
All the rest not used.
Thanks.
and a PCB with electronics, from a Motorola or Schumacher battery
charger (Motorala Type: 25E83071P03 or Schumacher 93-013-419). I think
made in 1990. Outputted 14.25V or 13.8V depending on which outer taps on
secondary was chosen.
I've no idea what the electronics did on the PCB, but centre-tap (CT) of
secondary is positive and the outer taps go to chassis via rectifiers.
CT goes to a capacitor of 97,000 uF, and then a choke, then another
capacitor of 73,000 uF.
Wires (probably "signal" voltages) from both of the outer taps of
secondary goes to the PCB.
The tank circuit has the capacitor. But both ends of the capacitor go to
the PCB - one of the wires via an iron-cored choke (not some small RF
choke).
Okay, the question is, can a basic PSU be made with the following items
only?:
* CVT
* both rectifiers
* both "smoothing" capacitors
* smoothing choke
* capacitor for tank winding
All the rest not used.
Thanks.