Alt-BEAM Archive

Message #07601



To: beam@sgiblab.sgi.com
From: "Robotbreeder" robotbreeder@telus.net
Date: Thu, 11 Nov 1999 22:17:18 -0800
Subject: [alt-beam] Chloroplast



content-transfer-encoding: quoted-printable
x-mime-autoconverted: from 8bit to quoted-printable by smtpout.telus.net id WAA02783

Hi, I=92m new to this list and am grateful to be introduced to this cool ho=
bby
by the very talented Jason Feser : http://members.xoom.com/jfeser/

I feel I must share with you all a discovery: Chloroplast

Ok, this engine seriously rocks and is a significant improvement in power
and effiency to the 1381. For those of you who don=92t know, the circuit w=
ill
charge to 3V (or 5V depending on which part you get) and then continue to
charge until a threshold =96 determined by a variable resistor =96 dumping
voltage to whatever and stopping again at 3V (or 5V).

Why this rules:

A constant voltage can be maintained, so other circuitry can be piggy-backe=
d
to the engine.

The power pulses are strong, like 4V to 3V instead of 2.4V to .7V - what
good is anything under 1.2V anyway?

It=92s simple =96 2 parts! And it=92s cheap! The variable pot to adjust =
the
peak voltage is so cool=85 set it low for pop pop pop pop type action, or
high for a long burst. A real =91personality=92 control for your bots.

Checkitout:

http://members.home.net/cybug/Chloro/chloro~1.htm

Hey, I just bought 20 1381=92s but I=92m not sure when I=92m going to use t=
hem
next!


Now I just have to figure out a circuit that compares the light between two
LDR=92s or photodiodes and supply=92s current to one of two sides (constant=
ly
adjusting and voltage independent)

That way I can build a microbot with a chloroplast engine, 2 motors, 2 eyes=
,
and a 1farad supercap. It=92ll charge for ages, but the discharge will las=
t
about 20 seconds and the bot will be scrambling about constantly turning
every which way under the light.

Any suggestions??


Thanks,

Adam


content-transfer-encoding: quoted-printable

hemas-microsoft-com:office:word" xmlns=3D"">http://www.w3.org/TR/REC-html40">


>
Attachment: DProgId content=3DWord.Document>





k
face=3DArial>Hi, I’=
;m new to this
list and am grateful to be introduced to this cool hobby by the very talent=
ed
Jason Feser  : style=3D"mso-spacerun: yes">  href=3D"http://members.xoom.com/jfeser/http://members.xoom.com/jfeser/">http://members.xoom.com/jfeser/
>



k
face=3DArial> ortEmptyParas]> 



k
face=3DArial>I feel I mu=
st share
with you all a discovery: 
Chloroplast



k
face=3DArial> ortEmptyParas]> 



k
face=3DArial>Ok, this en=
gine
seriously rocks and is a significant improvement in power and effiency to t=
he
1381.  For those of you who d=
on’t
know, the circuit will charge to 3V (or 5V depending on which part you get)=
and
then continue to charge until a threshold – determined by a variable =
resistor –
dumping voltage to whatever and stopping again at 3V (or 5V). pan>



k
face=3DArial> ortEmptyParas]> 



k
face=3DArial>Why this ru=
les:



k
face=3DArial> ortEmptyParas]> 



k
face=3DArial>A constant =
voltage
can be maintained, so other circuitry can be piggy-backed to the engine. p>



k
face=3DArial> ortEmptyParas]> 



k
face=3DArial>The power p=
ulses
are strong, like 4V to 3V  in=
stead
of 2.4V to .7V  - what good i=
s
anything under 1.2V anyway?



k
face=3DArial> ortEmptyParas]> 



k
face=3DArial>It’s =
simple – 2 parts! style=3D"mso-spacerun: yes">  And it’s cheap! style=3D"mso-spacerun: yes">   The variable pot to adjust =
the
peak voltage is so cool…  an>set it
low for pop pop pop pop type action, or high for a long burst. style=3D"mso-spacerun: yes">  A real ‘personality’ =
control for your
bots.



k
face=3DArial> ortEmptyParas]> 



k
face=3DArial>Checkitout:=



k
face=3DArial> ortEmptyParas]> 



k
face=3DArial> href=3D"http://members.h=">http://members.home.net/cybug/Chloro/chloro~1.htm">http://members.h=
ome.net/cybug/Chloro/chloro~1.htm



k
face=3DArial> ortEmptyParas]> 



k
face=3DArial>Hey, I just=
bought
20 1381’s but I’m not sure when I’m going to use them nex=
t!



k
face=3DArial> ortEmptyParas]> 



k
face=3DArial> ortEmptyParas]> 



k
face=3DArial>Now I just =
have to
figure out a circuit that compares the light between two LDR’s or pho=
todiodes
and supply’s current to one of two sides (constantly adjusting and vo=
ltage independent)



k
face=3DArial> ortEmptyParas]> 



k
face=3DArial>That way I =
can
build a microbot with a chloroplast engine, 2 motors, 2 eyes, and a 1farad
supercap.  It’ll charge=
for ages,
but the discharge will last about 20 seconds and the bot will be scrambling
about constantly turning every which way under the light. style=3D"mso-spacerun: yes">   span>



k
face=3DArial> ortEmptyParas]> 



k
face=3DArial>Any suggest=
ions??



k
face=3DArial> ortEmptyParas]> 



k
face=3DArial> ortEmptyParas]> 



k
face=3DArial>Thanks, >



k
face=3DArial> ortEmptyParas]> 



k
face=3DArial>Adam o:p>











Home