[sdiy] Effectron 3 / ADM 1030 schematic / battery

[Dave Manley]

On 9/19/2011 9:04 PM, Jim Coursey wrote:
> Hi Scott and Peter, thanks for the advice.  My preference is to not mess with the circuit (not having the schematic, etc), and I don't get the sense that whoever worked on this before changed anything significant.  (All the diodes and resistors match their marked designators, i.e. D100 is a diode etc.)  So maybe I'll try the Ni-MH first.  If I were to switch it to a lithium, which way do I orient the diode that replaces the series charging resistor?
>
> Thanks,
> -Jim
>

The anode of the diode should be on the power supply side,
and the cathode on the battery side.  This allows current
to charge the battery when the power supply is on, but doesn't
allow the battery to try and power the whole unit when the
power supply is off.

You might want to compare your unit against the schematics
for the ADM2048, the power supply might be very similar.

-Dave