Thread: Batteries
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Old October 10th 16, 06:29 PM posted to
Phil Hobbs Phil Hobbs is offline
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Default Batteries

On 10/10/2016 11:21 AM, wrote:
On Monday, October 10, 2016 at 11:06:50 AM UTC-4, Phil Hobbs wrote:

Torque is proportional to current, no?

Yep. But a DC motor dead-stopped is a short circuit. And even a very
nearly crapped-out battery may have enough to blow a fuse if
dead-shorted. Fuse action is not voltage dependent (as long as the
fuse is rated at a higher voltage than the application).

Peter Wieck Melrose Park, PA

Sure, but if it ever had enough torque to start up against the load,
that amount of current wouldn't blow the fuse. Of course it might be a
super slow blow variety that eventually went, but saying that the
current went up because the voltage went down makes no sense unless it's
using a SMPS.


Phil Hobbs
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC
Optics, Electro-optics, Photonics, Analog Electronics

160 North State Road #203
Briarcliff Manor NY 10510

hobbs at electrooptical dot net