.1uf between Vcc and gnd ???
Spehro Pefhany email (remove spam text)
At 01:57 PM 7/6/02 +0100, you wrote:
>I might be totally wrong here but if capacitors have leakage, won't that
>affect the battery life ?
Ceramic caps have negligible leakage compared to the circuit or even
the PCB unless it is very clean (>10,000M ohms). Electrolytics have
more, but still typically << 1uA, depending on the type. For
something like alkaline AA cells you can put the cheapest aluminum
e-cap in there and not worry. For 10+ year life from a Li battery
you might want to look more carefully.
So, the effect on battery life is not much. If the circuit
stops working due to the cell internal resistance increasing, that,
effectively, results in much more reduction in battery life.
Spehro Pefhany --"it's the network..." "The Journey is the reward"
interlog.com Info for manufacturers: speffhttp://www.trexon.com
Embedded software/hardware/analog Info for designers: http://www.speff.com
9/11 United we Stand
http://www.piclist.com hint: PICList Posts must start with ONE topic:
[PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads
In reply to: <8D8EA75945974F4BB854E1987DE8A5F313CB@kcslsrv1.kcsl.uk.com>
See also: www.piclist.com/techref/microchip/devices.htm?key=pic
You must be a member of the
piclist mailing list
(not only a www.piclist.com member) to post to the