ACT available

[PANAMATIK]

(04-04-2015 10:30 PM)pito Wrote:  @PANAMATIK: would not be better to wire at least a zener from D2 anode to GND in order to protect the pic16? Otherwise it will fry for the same reasons as the old ACTs did

Hello pito

Thanks for your suggestion.

A protection with Zener Diode or a three pin voltage regulator for additional protection is a good idea. I used a simple resistor at VCC instead. The PIC should have a build in diode at VCC as all modern chips normally do. The resistor limits the current if voltage is too high at pin 1. I admit, a zener diode at the right place could protect the other chips on board as well and would have been the better choice. Perhaps there will be a hardware update in the future, but still the best protection is the knowledge not to charge without batteries (which I didn't take serious enough some month ago).