Patent ID: 9331514
Filing Date: 2016-05-03
CPC Classification: H02J,Y02B

Claim Text:
1. A charging apparatus, comprising: a voltage regulator; a charging power tube, wherein a source electrode of the charging power tube is connected to an output end of the voltage regulator and a drain electrode of the charging power tube is connected to a positive electrode of a battery, and the charging power tube is configured to generate a charging current; a charging controller, wherein an output end of the charging controller is connected to a gate electrode of the charging power tube, and the charging controller is configured to control the charging power tube to adjust the charging current; and a reference voltage module, configured to obtain the charging current and a battery voltage and output a reference voltage, wherein the reference voltage is Rm1×Ichg+Vbat, wherein Rm1 is conductive impedance of the charging power tube, Ichg is the charging current, Vbat is the battery voltage, and an output end of the reference voltage module is connected to a reference voltage end of the voltage regulator.