> Date:          Mon, 8 Nov 1999 17:26:08 -0500
> Reply-to:      pic microcontroller discussion list <PICLIST@MITVMA.MIT.EDU>
> From:          Wagner Lipnharski <wagnerl@EARTHLINK.NET>
> Organization:  UST Research Inc.
> Subject:       Re: [OT] Ringing Chokes and batteries
> To:            PICLIST@MITVMA.MIT.EDU

Well, i'm about to replace the 9v battery in my datalogger with two
AA 1.5v and a stepper to 5v, but i was curious how they worked, and
wanted to see for mysef.  I've been messing with switched capacitor
circuits, and saw the inductor circuit, but couldnt get it to work.
Then i wondered if i could run it at 3v, stepped up from 1.5v, and
let the pressure transducer work ratiometrically. The pressure sensor
only pulls a few mA, the pic and adc and memory chip only a few mA.
The problem with the switched cap design is the oscillator part, the
self-oscillation of the coil looked nicer.

alice

> Hello dear Alice, looking for a small step up conversion circuit?
> What are you trying to power up?
> What is the input and output Voltage x Current?
> :)
>
.