Status: Inactive
Owner: None
Requirements
Passthrough 18 V - 55 V (6S lower voltage to 12S upper voltage )
Measure current through hall effect current sensing (without a shunt resistor to minimize losses)
Measures voltage with an ADC
I2C or UART interface
Preference toward I2C, but just pick one of them
XT60 connector for input power and output power
Maximum current passthrough requirements
Max pulsed current 200 A
Max continuous current 75 A
Refer to Nathan’s current power module, photos in discord, for a reference to what this board will be replacing.
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https://www.sparkfun.com/datasheets/BreakoutBoards/0712.pdf
2. Current Sense Transformers:
Current sensing used for control, protection and information.
2. Analog to Digital Converters (ADC)
Measures ratio of analog input value to a reference value to express in the form of a digital value. The range is divided into n equally sized intervals and each interval is assigned to a certain value.
ADC with 8 unique values gives a resolution of 3 bit (2^N = 8 where N=3 ). Resolution defines the smallest change in input value that the converter can distinguish.
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Offset and gain error can be compensated so that the end and start point of the curve are the same. However, there could be a non-linearity error