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S
Sturmey
1 mW
Joined
Nov 11, 2022
Last seen
May 26, 2023
Messages
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S
Sturmey
replied to the thread
What makes these cheap Chinese chargers so dangerous?
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If I may add to what you said, most/many multimeters anyhow are only specified/guareenteed as accurate at best to about 1% plus one...
May 26, 2023
S
Sturmey
replied to the thread
KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)
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Sorry, it does not have custom firmware.
Apr 26, 2023
S
Sturmey
replied to the thread
KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)
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It is indeed phase current. It circulates through the motor. Freewheeling/flyback current adds to the battery current and increases...
Apr 25, 2023
S
Sturmey
replied to the thread
KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)
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Dont forget that extra 'freewheeling/flyback' current over and above battery current is generated caused by collapse of motors magnetic...
Apr 25, 2023
S
Sturmey
replied to the thread
Are BMS wires junky??
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Just a thought. Sometimes a light thin wire is better in this application in that if it does short, it will burn/fuse quickly and do...
Apr 19, 2023
S
Sturmey
replied to the thread
Battery speed boost
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Your suggestion reminds me of the 'End Cell Switch' that was used on old 50 volt strowger telephone switch power supplies to boost the...
Mar 28, 2023
S
Sturmey
replied to the thread
Dumb question: why are there e-power cutoff brakes at all?
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In Europe, there is also a requirement under EN15194 as quoted below. They may not be required with certain torque sensors as they may...
Mar 28, 2023
S
Sturmey
replied to the thread
Automatic 80% soc cutoff charger?
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I have put diodes in series with charger output that seems to work although it does slow up the switching 'on' of the finish green...
Mar 9, 2023
S
Sturmey
replied to the thread
Attempt: TSDZ2 torque sensor repair, not work :-( any ideas?
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As well as transmitting data, the coils also transmit a small amount of power for the hall sensor in the spindle (like a transformer)...
Feb 25, 2023
S
Sturmey
replied to the thread
New Circuit Breaker
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Circuit breakers will typically carry multiples of its rated current for a certain time before it trips (e.g double its rating for 50...
Feb 23, 2023
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