Alt-BEAM Archive
Message #01162
To: "'Steven Bolt'" sbolt@xs4all.nl
From: Wilf Rigter Wilf.Rigter@powertech.bc.ca
Date: Tue, 2 Mar 1999 07:30:54 -0800
Subject: [alt-beam] Re: pocket motor-tester / BEAM multi-meter
content-type: text/plain
Hello Steve,
You were puzzled by my statement
> The stored energy goes up with the square of the voltage ie
> double the volts = four times the energy.
>Um, you lost me there.
I replied:
> Quote from the WILEY ENGINEER'S DESK REFERENCE
>
> Energy (W) stored in a capacitor C at potential V volts
>
> W=1/2CV*V in joules
does that clear it up?
I said:
> Anyway your early photovore modulates the output with a
> squarewave ie PWM, right?
You said,
> No. The pulse generator gives a narrow (about 1ms) pulse at 5Hz
(as
> shown in the SunEater_II schematic on Brian's page).
I meant this bit
<>
Wilf Rigter mailto:wilf.rigter@powertech.bc.ca
------------------------------------------------------------------------
eGroup home: http://www.eGroups.com/list/alt-beam
Free Web-based e-mail groups by eGroups.com
Attachment: boltclp.gif
Home