Patent ID: 8653795

Claim:
A charger circuit, comprising: a first charging path receiving input power, the first charging path being controlled by a first control signal to charge a battery with a first charging current; at least one second charging path receiving the input power, the second charging path being controlled by a second control signal to charge the battery with a second charging current; and a control circuit coupled to the first charging path and the second charging path, the control circuit receiving a battery feedback signal and outputting the first control signal and the second control signal according to the battery feedback signal, wherein the battery feedback signal is related to a charging status of the battery, and: when the battery feedback signal is below a first predetermined threshold, the control circuit generates the first control signal and the second control signal, so that both the first charging path and the second charging path are activated to charge the battery with a large current; when the battery feedback signal is above the first predetermined threshold, the control circuit stops generating the second control signal, which inactivates the second charging path so that only the first charging path charges the battery; and when the battery feedback signal is above a second predetermined threshold which is higher than the first predetermined threshold, the control circuit stops generating the first control signal, which inactivates the first charging path so that none of the first charging path and the second charging path charges the battery.