Charger and power delivery control chip and charging method thereof
First Claim
1. A charger adapted to charge an electronic device via a cable, wherein an end of the cable provides a target charging voltage to the electronic device via a first connector and the other end of the cable is coupled to the charger via a second connector, the charger comprising:
- an AC/DC conversion circuit coupled to a power supply bus of the cable and converting an AC voltage into a DC voltage to provide a charging voltage and a charging current; and
a power delivery control chip calculating a first equivalent resistance according to a first voltage sensing signal provided from a first chip of the first connector, a current charging voltage, and a current charging current, and adjusting the charging voltage provided by the AC/DC conversion circuit according to the first equivalent resistance, the current charging current, and the target charging voltage, wherein the first equivalent resistance is a resistance corresponding to a section on the power supply bus between the first chip and the charger.
2 Assignments
0 Petitions
Accused Products
Abstract
A charger and a power delivery control chip and a charging method thereof are provided. Resistance values of equivalent resistances corresponding to a power supply bus are calculated according to a charging current and voltage sensing signals respectively provided by chips of a first connector and a second connector. A charging voltage supplied to the power supply bus is adjusted according to a target charging voltage, a current charging current, and variations of the resistance values of the equivalent resistances corresponding to the power supply bus.
3 Citations
36 Claims
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1. A charger adapted to charge an electronic device via a cable, wherein an end of the cable provides a target charging voltage to the electronic device via a first connector and the other end of the cable is coupled to the charger via a second connector, the charger comprising:
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an AC/DC conversion circuit coupled to a power supply bus of the cable and converting an AC voltage into a DC voltage to provide a charging voltage and a charging current; and a power delivery control chip calculating a first equivalent resistance according to a first voltage sensing signal provided from a first chip of the first connector, a current charging voltage, and a current charging current, and adjusting the charging voltage provided by the AC/DC conversion circuit according to the first equivalent resistance, the current charging current, and the target charging voltage, wherein the first equivalent resistance is a resistance corresponding to a section on the power supply bus between the first chip and the charger. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A charging method of a charger adapted to charge an electronic device via a cable, wherein an end the cable provides a target charging voltage to the electronic device via a first connector and the other end of the cable is coupled to the charger via a second connector, the charging method of the charger comprising:
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converting an AC voltage into a DC voltage to provide a charging voltage and a charging current; calculating a first equivalent resistance according to a first voltage sensing signal provided from a first chip of the first connector, a current charging voltage, and a current charging current; and adjusting the charging voltage according to the first equivalent resistance, the current charging current, and the target charging voltage, wherein the first equivalent resistance is a resistance corresponding to a section on a power supply bus between the first chip and the charger. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A power delivery control chip disposed in a charger adapted to charge an electronic device via a cable, wherein an end the cable provides a target charging voltage to the electronic device via a first connector and the other end of the cable is coupled to the charger via a second connector, the power delivery control chip being configured to:
calculate a first equivalent resistance according to a first voltage sensing signal provided from a first chip of the first connector, a current charging voltage, and a current charging current, and adjust a charging voltage provided by the charger according to the first equivalent resistance, the current charging current, and the target charging voltage, wherein the first equivalent resistance is a resistance corresponding to a section on a power supply bus between the first chip and the charger. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
Specification