Questions tagged [reverse]
5 questions
3
votes
1 answer
Universal AC Motor Brush Rotation Angle
Considering adding reversing capability to a Porter Cable 690LR (router) universal AC motor for use as a spindle motor. Yes, there are better alternatives but this is to finish someone else's wood-CNC project. 120 VAC, 60Hz, 11A, 27,500RPM,…
rdtsc
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1
vote
2 answers
Reverse twilight switch
I live off-grid and want my fridge switch off automatically during the night.
The strategy combines a twilight switch and a switch relay.
I'm stuck with the wiring of the switch relay (I am not an electrician).
Spec:…
Rich
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1
vote
1 answer
Reverse polarity protection: pros/cons fuse+diode vs. latching MOSFET
I want to add reverse polarity protection for a battery charger ic.
What would be the pros/cons with the two circuits attached?
EDIT: the fuse will be a resettable (PTC) fuse.
The circuits have been described here
okwestern
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1
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1 answer
Power-Input protection
i need a little help with designing a power input "stage" for a product with the following requirements:
Input-Voltage 5V +-10%
Output-Voltage with two independent 1V8 rails (150mA max with T_ambient max. 85*C)
Thermal shutdown, current limit…
ElectronicsStudent
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Zener diode wrong gate voltage regulation for battery reverse protection
I have the following circuit meant for reverse polarity battery protection.
The battery is a 2s li-ion (8.4 V to 7.0 V), but it could also be a 12 V max PSU.
I'm not sure what's wrong on the PMOS gate, why is it only getting 3.1 V from the…
lupolucio
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