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3 questions
1
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0
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Seeking Advice on Resistor Package Selection for Voltage Sensing in BLDC Motor Controller
In a BLDC motor controller's voltage sensing circuit, I've seen larger resistors (1206/0805) used at the battery's positive terminal. I'm considering a 0402 package resistor for this spot. Are there ...
4
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2
answers
3k
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What does a resistor value of NP mean on a schematic?
I'm trying to design a schematic based off a certain schematic I've seen online. In the image theres two resistors and a capacitor all with a value of 'NP'. What does this mean? I'm guessing it means ...
21
votes
6
answers
7k
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Why would a circuit designer use parallel resistors?
I've been reviewing this reverse engineered schematic of a bmax6 style lipo charger.
To my understanding this circuit is used to dissipate excess charge in a cell when balance charging. The circuit ...