Hello all,
I have a circuit (it contains a pic) which has a couple of rather large
aluminum electrolytic capacitors (2200uF) as supply filters. the problem
is that when the circuit is turned off, the charge takes a little while to
dissipate (i have a power on led in series with a 1K resistor across the
supply lines) and while its dissipating, the pic among other things is
still funtioning. I am worred that the pic might end up in one of my
routines which, for example writes to an I2C EEPROM, and corrupt the data
there. so what i need is a way to disipate the capacitor reletively
quickly after power down. I was thinking of putting a diode in paralel in
the wrong direction (anode to gnd, cathode to vcc) but i dont think this
will work, since the charge in the capacitor is polarized. I hope someone
has an idea.. thanks agian

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