Patent ID: 11923715
Assignee: QUALCOMM INCORPORATED
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 20:
21. A method comprising: operating a charger as a voltage-divider-type charge pump or a voltage-multiplier-type charge pump during a first time interval, the operating the charger during the first time interval comprising: accepting a first input voltage at a first node of the charger; and generating, based on the first input voltage, a first output voltage at a second node of the charger, the first output voltage being less than or greater than the first input voltage based on the charger operating as the voltage-divider-type charge pump or the voltage-multiplier-type charge pump, respectively; operating the charger as a direct charger during a second time interval, the operating the charger during the second time interval comprising: accepting a second input voltage at the first node of the charger; and generating, based on the second input voltage, a second output voltage at the second node of the charger, the second output voltage being substantially equal to the second input voltage based on the charger operating as the direct charger transferring power from a first power supply circuit coupled to the first node of the charger to a first load coupled to the second node of the charger during the first time interval and the second time interval; operating the charger as the voltage-divider-type charge pump or the voltage-multiplier-type charge pump during a third time interval, the operating the charger during the third time interval comprising: accepting a third input voltage at the second node of the charger; generating, based on the third input voltage, a third output voltage at the first node of the charger, the third output voltage being less than or greater than the third input voltage based on the charger operating as the voltage-divider-type charge pump or the voltage-multiplier-type charge pump, respectively, and transferring power from a second power supply circuit coupled to the second node of the charger to a second load coupled to the first node of the charger during the third time interval.