[Prev][Next][Index][Thread]
Re: 60 vs. 30 ma
From: Rick Holland[SMTP:rickh-at-ghg-dot-net]
Sent: Monday, June 23, 1997 11:13 PM
To: Tesla List
Subject: Re: 60 vs. 30 ma
Tesla List wrote:
>
> From: Engle, Daniel (NJAOST)[SMTP:DEngle-at-NJAOST.ML-dot-com]
> Sent: Monday, June 23, 1997 3:11 PM
> To: 'Tesla List'
> Subject: RE: 60 vs. 30 ma
>
> I'm not trying to beat a dead-horse here, but I'm trying to see this in
> layman's terms. Feel free to correct me... If you say that current is
> the quantity of electrons(for example, the size of a river-i.e. the
> bigger the more water) and voltage is the "pressure"(the speed), then
> wouldn't increasing either basically charge the capacitor faster?
> Wouldn't doubling the current(increasing the size of the river) or
> increasing the voltage(increasing the flow of the water) have the same
> effect?
>
> Dan Engle
--
Forget rivers. We're talking electronics. The formula for attaining 63%
of maximum charge (ie. applied VOLTAGE) in terms of time is R*C. The
number of time constants required to approximate full charge is 3. In
order to decrease the amount of time necessary to charge the capacitor,
you must decrease R or C or increase voltage. In the event you increase
voltage, the resultant 63% will be that fraction of a higher voltage.
Increasing current and leaving all other factors even will not decrease
charge time or increase charge per time unit.
Rick Holland
The Answer is 42