Re: Single cell boost help.


onehappymad...@xxxxxxxxx wrote:
newsrichie@xxxxxxxxx wrote:
linnix wrote:
newsrichie@xxxxxxxxx wrote:
I just need one working supply. Can anyone recommend a vendor or a
series of ICs? I am out of ideas.
-Rich

It's very difficult to work with 1A @1.2V.
Can you settle with 0.5A @2.4V, using 2 cells?

I really wish i could use more cells. But my design requires that i use
1 cell. I am building a robot that will sit under a light and charge
it's single nimh cell when a certain charge level is reached it will go
out and fine a patch of tin foil. I have to power 2 servos, some
sensors and 3 micros. Boosting for the micros and sensors is no problem
but the motors are almost impossible. I have tried running 3 boost
blocks in parallel with no luck. Thanks for the replies.
-Rich


Powering sensors, micros *and* motors on 1 watt? Wow. Maybe the
professor had some power-management in mind... run only one motor at a
time?

The professor checked out all the commerical stuffs,
to make sure they cannot be used. Students need to build
one without the safety limitations of commerical chips.
I.e. burning silcons on the go.


What's the mAh raing on your NiMH, anyway? Energizer has AA's up to
2500 mAh now. My house is full of them.

I am sure the battery is carefully selected and spec'd.


http://www.energizer.com/products/rechargeables/sizes.aspx

A shame that their Cs and Ds don't have more mAh...

.

Relevant Pages

  • Re: Single cell boost help.
    ... it's single nimh cell when a certain charge level is reached it will go ... Boosting for the micros and sensors is no problem ... micros *and* motors on 1 watt? ...
    (sci.electronics.design)
  • Re: Single cell boost help.
    ... it's single nimh cell when a certain charge level is reached it will go ... Boosting for the micros and sensors is no problem ...
    (sci.electronics.design)
  • Re: Single cell boost help.
    ... it's single nimh cell when a certain charge level is reached it will go ... Boosting for the micros and sensors is no problem ...
    (sci.electronics.design)
  • Re: EFLM108 E-Flight brushed motor w/4:1 gearbox
    ... I don't mind pushing it a little. ... I haven't used brushed type motors ... or nicad/NIMH cell in a long time. ... burn up the brushes. ...
    (rec.models.rc.air)
  • Re: Interfacing a pic18f2520 microcontroller with a cell phone
    ... microcontroller taking readings from some sensors and displays them on a ... I need it to further send these readings directly to a cell ... that reminds me my old school days. ...
    (comp.arch.embedded)
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