J
John Doe
- Jan 1, 1970
- 0
Using an 18 V cordless circular saw, but for a different purpose than
intended. Apparently the switch is either all or nothing (makes sense
IMO to help avoid binding during a cut).
If variable speed DC motor requires a large heatsink, how about just
four different speeds using simple switches? Someone in the design
group answered this question with a drawing but I cannot locate it in
the archives.
I figure that's easy just by putting batteries in series and then dial
switching in between the batteries. But that would wear the batteries
unevenly. Could anyone please illustrate a four position switch that
would provide zero plus three positive voltages, maybe switching the
batteries to parallel so that current drain is even on all batteries?
Thank you.
intended. Apparently the switch is either all or nothing (makes sense
IMO to help avoid binding during a cut).
If variable speed DC motor requires a large heatsink, how about just
four different speeds using simple switches? Someone in the design
group answered this question with a drawing but I cannot locate it in
the archives.
I figure that's easy just by putting batteries in series and then dial
switching in between the batteries. But that would wear the batteries
unevenly. Could anyone please illustrate a four position switch that
would provide zero plus three positive voltages, maybe switching the
batteries to parallel so that current drain is even on all batteries?
Thank you.