Patent ID: 8664913

Claim:
A battery powered apparatus with the circuit of integrated power management and charger unit, comprising: a battery, having a first terminal and a second terminal, the first terminal used for receiving power and provide power of the battery and the second terminal used for outputting a detected voltage of the battery (V BAT ), the battery used for providing and receiving power; an adaptor, having a terminal, used for providing power; a power management and charger unit, having a first terminal, a second terminal, a third terminal, a fourth terminal, a fifth terminal, a sixth terminal, a seventh terminal, an eighth terminal and a ninth terminal, the first terminal electrically connected to the first terminal of the battery and used for receiving power of the battery, the second terminal electrically connected to the terminal of the adaptor and used for receiving power of the adaptor, the third terminal used for outputting power, the fourth terminal electrically connected to the second terminal of the battery and used for receiving the detected voltage of the battery (V BAT ), the fifth terminal used for outputting a digital signal (ADC_OUT), the sixth terminal used for receiving a first control signal (S 1 <n1:0>), the seventh terminal used for receiving a second control signal (S 2 <n2:0>), the eighth terminal used for receiving a third control signal (I<n3:0>), and the ninth terminal electrically connected to the first terminal of the battery and used for outputting power to the battery; a battery powered device, having a first terminal, a second terminal, a third terminal, a fourth terminal and a fifth terminal, the first terminal electrically connected to the third terminal of the power management and charger unit and used for receiving the power output from the power management and charger unit, the second terminal electrically connected to the fifth terminal of the power management and charger unit and used for receiving the digital signal (ADC_OUT) output from the power management and charger unit, the third terminal electrically connected to the sixth terminal of the power management and charger unit and used for outputting the first control signal (S 1 <n1:0>), the fourth terminal electrically connected to the seventh terminal of the power management and charger unit and used for outputting the second control signal (S 2 <n2:0>), and the fifth terminal electrically connected to the eighth terminal of the power management and charger unit and used for outputting a third control signal (I<n3:0>); and wherein the power management and charger unit is used for operation switching of battery mode and charging mode of the battery powered apparatus with the circuit of integrated power management and charger unit according the first control signal (S 1 <n1:0>), the second control signal (S 2 <n2:0>) and the third control signal (I<n3:0>) output from the battery powered device.