24-07-2011, 07:06 AM
(24-07-2011, 06:16 AM)martyb123 Wrote: c7 and c8 are for the voltage regulator i have the schematic with the voltage regulator drawn in
Hi Marty,
Have you (or someone else) updated the circuit to include and additional cap (C8?) for the voltage regulator? I'd just added the voltage regulator and left the 10uF cap (C7) in place, but I think that often, when 100mA 78L05 is used in circuits, a cap is added before the regulator to prevent it behaving erratically. If that's the case, maybe I should update the PCB to accomodate that extra cap? In practice, I haven't found that the TL805 has misbehaved.
Any comments please?
David
