-
1.发明专利
公开(公告)号：CA2393664A1
公开(公告)日：2001-07-05
申请号：CA2393664
申请日：2000-12-28
Applicant: QUALCOMM INC
Inventor： FITZGERALD JOSEPH R , WERNER DAVID E , SIMMONS EDMUND V
Abstract: The system includes a first mechanism for receiving a feedback signal and providing a charging signal to the battery over a first electrical path when the feedback signal indicates that the battery is not fully charged. A secon d mechanism measures a voltage state of the battery via second and third electrical paths and provides the voltage state as the feedback signal to th e first mechanism in response thereto. In the specific embodiment, the first mechanism is a controllable power supply and the second mechanism is a sensi ng circuit. The sensing circuit includes a subtractor circuit that subtracts th e voltage on the second electrical path from the voltage on the third electric al path and provides the feedback signal in response thereto. The second electrical path includes a wire connected between a first terminal of the subtractor circuit and a positive terminal of the battery.
-
2.发明专利
公开(公告)号：CA2393664C
公开(公告)日：2008-01-08
申请号：CA2393664
申请日：2000-12-28
Applicant: QUALCOMM INC
Inventor： FITZGERALD JOSEPH R , SIMMONS EDMUND V , WERNER DAVID E
Abstract: The system includes a first mechanism for receiving a feedback signal and providing a charging signal to the battery over a first electrical path when the feedback signal indicates that the battery is not fully charged. A second mechanism measures a voltage state of the battery via second and third electrical paths and provides the voltage state as the feedback signal to the first mechanism in response thereto. In the specific embodiment, the first mechani sm is a controllable power supply and the second mechanism is a sensing circuit. The sensing circuit includes a subtractor circuit that subtracts the voltage on the second electrical path from the voltage on the third electrical path and provides the feedback signal in response thereto. The second electrical path includes a wire connected between a first terminal of the subtractor circuit and a positive terminal of the battery.
-
公开(公告)号：DE60039914D1
公开(公告)日：2008-09-25
申请号：DE60039914
申请日：2000-12-28
Applicant: QUALCOMM INC
Inventor： FITZGERALD JOSEPH R , WERNER DAVID E , SIMMONS EDMUND V
Abstract: A system for charging a battery over a linear or nonlinear circuit. The system includes a first mechanism for receiving a feedback signal and providing a charging signal to the battery over a first electrical path when the feedback signal indicates that the battery is not fully charged. A second mechanism measures a voltage state of the battery via second and third electrical paths and provides the voltage state as the feedback signal to the first mechanism in response thereto. The voltage state accounts for voltage drops occurring over the circuit. In the specific embodiment, the first mechanism is a controllable power supply and the second mechanism is a sensing circuit. The sensing circuit includes a subtractor circuit that subtracts the voltage on the second electrical path from the voltage on the third electrical path and provides the feedback signal in response thereto. The second electrical path includes a wire connected between a first terminal of the subtractor circuit and a positive terminal of the battery. The second electrical path also includes a first sensing resistor connected between an output of the power supply and the first terminal of the subtractor circuit. The third electrical path includes a wire connected between a second terminal of the subtractor circuit and a negative terminal of the battery. The third electrical path also includes a second sensing resistor connected between a ground and the second terminal of the subtractor circuit.
-
4.发明专利
公开(公告)号：AU2465801A
公开(公告)日：2001-07-09
申请号：AU2465801
申请日：2000-12-28
Applicant: QUALCOMM INC
Inventor： FITZGERALD JOSEPH R , WERNER DAVID E , SIMMONS EDMUND V
Abstract: A system for charging a battery over a linear or nonlinear circuit. The system includes a first mechanism for receiving a feedback signal and providing a charging signal to the battery over a first electrical path when the feedback signal indicates that the battery is not fully charged. A second mechanism measures a voltage state of the battery via second and third electrical paths and provides the voltage state as the feedback signal to the first mechanism in response thereto. The voltage state accounts for voltage drops occurring over the circuit. In the specific embodiment, the first mechanism is a controllable power supply and the second mechanism is a sensing circuit. The sensing circuit includes a subtractor circuit that subtracts the voltage on the second electrical path from the voltage on the third electrical path and provides the feedback signal in response thereto. The second electrical path includes a wire connected between a first terminal of the subtractor circuit and a positive terminal of the battery. The second electrical path also includes a first sensing resistor connected between an output of the power supply and the first terminal of the subtractor circuit. The third electrical path includes a wire connected between a second terminal of the subtractor circuit and a negative terminal of the battery. The third electrical path also includes a second sensing resistor connected between a ground and the second terminal of the subtractor circuit.
-
-
-
Search Results
4
records
(took 0.02 seconds)
