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The dc high voltage is usually measured with high-voltage divider which plays the role of the ratio standard linking the unknown high voltage to the well-known low-voltage standards. A step-up method had been proposed to calibrate the dividing ratios of the high-voltage dividers at nominal test voltage. The step-up technique has been newly modified for improving the transfer accuracy of reference...
This paper presents an all-digital battery capacity monitor using calibrated current estimation approach (CCEA). The circuit implementation for state of charge (SOC) and state of health (SOH) estimation methods is also revealed as well. The capacity of the battery is highly correlated with different discharging currents. Due to the variation of the capacity, the accuracy of the SOC and SOH estimated...
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