swap batteries between an experiment and a charger

Tags: batteries, charger, experiment, swap
0xDEADBEEF is offline
Sep2-09, 04:34 PM
P: 824
I would like a switch to seamlessly swap batteries between an experiment and a charger. Here is the description of the switch I am looking for.

Originally I1 is connected to O1, I2 to O2 and so on. On turning the switch these things should happen in order:

1.) I3 and I4 are disconnected from O3 and O4 (battery 2 taken of charger)
2.) I3 and I4 are connected to O1 and O2 in parallel to I1 and I2 (make before break)
3.) I1 and I2 are disconnected from O1 and O2 (experiment is now on battery 2)
4.) I1 and I2 are connected to O3 and O4 (attaching battery 1 to charger)

Where can I buy it? is there a name for this? Is there a company that produces "programmable" switches?
Phys.Org News Partner Engineering news on Phys.org
PsiKick's batteryless sensors poised for coming 'Internet of things'
Researcher launches successful tech start-up to help the blind
Researchers propose network-based evaluation tool to assess relief operations feasibility
dlgoff is offline
Sep2-09, 05:33 PM
Sci Advisor
PF Gold
dlgoff's Avatar
P: 2,631
Sounds like a good application for a couple of Knife Switches. Here's a link where you can buy them:
They make "make before break" knife switches.
0xDEADBEEF is offline
Sep3-09, 02:17 AM
P: 824
Those have this great mad scientist retro chic, but it seems I would have to tweak them a lot to make them work the way I want.

Register to reply

Related Discussions
FET switch Electrical Engineering 12
Transistor As Switch Introductory Physics Homework 5
should I switch to Linux Computing & Technology 24
size of a switch? Electrical Engineering 1
need help with where i can get a switch. Electrical Engineering 5