You could derive the VCC which keeps the MCLR high from a separate diode bridge and a small C and put a (relatively) small R over this C. regards, Wouter. ---------- > From: Lynx {Glenn Jones} > To: PICLIST@MITVMA.MIT.EDU > Subject: [OT]: bleeding large caps > Date: Sunday, February 07, 1999 01:50 > > 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 > > ---------------------------------------------------------------------------- -- > A member of the PI-100 Club: > 3.1415926535897932384626433832795028841971693993751 > 058209749445923078164062862089986280348253421170679