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本帖最后由 Google Earth 于 2026-6-1 12:45 编辑
娘炮翻译的这是啥，GP不通就是一坨GS
以下是原文
bq20zXX (SLUA391).
The procedure for calibration is different for PCBs and PCBs with cells attached.
Calibration before cells are attached is recommended because this method is much
faster. When cell are attached, long relaxation periods between the steps are needed
to avoid errors with gas-gauging.
Before calibration:
• Make all the necessary data flash settings to configure the pack. Send the “Reset” command
(Manufacturer Access 0041).
• Do NOT send the “IT enable” command 0021 before the calibration, because it starts the gas-gauging
algorithm with an uncalibrated pack.
1. Connect 1N (lowest cell (-) ), 1P, 2P, 3P and 4P (highest cell (+) ) terminals with 470 Ω, 1% resistors
to emulate the cells. Apply voltage in the 16 V range between 1N and 4P.
2. Momentary short 4P and Pack+ pins to wake-up the gas-gauge from shut-down mode. Connect the
EV2300 to the board and start the EV Software.
3. Current Offset Calibration
– Enter the “Calibrate” screen.
– Check the “CC Offset calibration” (uncheck all other boxes).
– Push the “Calibrate part as indicated below” button.
– Note that when SMB lines are disconnected, current offset is auto-calibrated to a more accurate
value.
4. Voltage Calibration
– Use a digital volt meter with better than 1-mV accuracy to measure voltage between the 1N and
4P pins. Do not rely on the accuracy of the applied voltage, accurate measurement of the
"actual_voltage" is critical.
– Enter the measured value into the “Enter actual voltage” text-box in the Voltage Calibration section
of the “Calibrate” screen.
– Enter the correct serial cell count (for example 3)
– Check the “Voltage calibration” check box (uncheck all other boxes)
– Check the “FET Control”→ OFF radio-button.
– Push the “Calibrate part as indicated below” button.
– Note that due to digital filter settling time, full accuracy of reported voltage are reached 5 minutes
after calibration. Only after passing this time, comparisons between requested and reported
voltage should be done to evaluate calibration accuracy.
5. Pack Voltage calibration
– This step is optional and is usually not necessary. Make sure the "Voltage Calibration" has been
performed. The default pack voltage calibration accuracy is sufficient for the purposes of raw pack
voltage estimation.
– Push the “Pack Voltage Calibration” button. Make sure DF:Calibration/Data/AFE Pack Gain is not
zero after this calibration. If it is, it is recommended to short 4P to Pack+ before going through this
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IP归属地
雷达卡
发表于 2026-6-1 12:40:28
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千斤顶
楼主
发表于 2026-6-1 12:55:06
