phil99
 Guru
 Joined: 11/02/2018 Location: AustraliaPosts: 2301 |
Posted: 10:04pm 17 Nov 2023 |
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I guess the most straight forward way to find the current offset is to periodically switch the MOSFETs off for a couple of seconds. The output must then be zero so the offset is whatever the current sensor is now reading. Compensate for that till the next rearing. Perhaps this could be done either at the start of a max. power scan, or once per hour. |