Device for and method of switching and monitoring batteries

• US 6,144,189 A
• Filed: 01/27/2000
• Issued: 11/07/2000
• Est. Priority Date: 01/27/2000
• Status: Expired due to Fees

• Current Assignee: US Government As Represented By The Director National Security Agency
• Original Assignee: The United States of America As Represented By The Director National Security Agency
• Inventors: Rockenbauch, Craig A.
• Primary Examiner(s): Wong, Peter S.
• Assistant Examiner(s): LUK, LAWRENCE W
• Application Number:
  US09/493,041
• Time in Patent Office: 285 Days
• Field of Search: 320/166, 320/116, 320/117, 320/118, 307/71
• US Class Current: 320/166
• CPC Class Codes: H02J 7/0019 using switched or multiplexed charge circuits

Abstract

The present invention is a device for switching and monitoring batteries for powering a battery-operated device that includes an n-to-1 multiplexer; batteries; a sensor array; a controller; a receiver; a transmitter; and diodes for selectively connecting power for the multiplexer, the sensor array, the controller, the receiver, and the transmitter.

Claims

1. A device for switching and monitoring batteries for providing power to a battery-operated device, comprising:

a) an n-to-1 multiplexer, having n multiplexer inputs, having a command input, having a power input, and having an output, where the n-to-1 multiplexer includes a state where none of the n multiplexer inputs are connected to the output;

b) n batteries, wherein each of the n batteries is connected to one of the n multiplexer inputs of the n-to-1 multiplexer;

c) a sensor array, having an input connected to the output of the n-to-1 multiplexer, having a power input connected to the power input of the n-to-1 multiplexer, having a voltage output, and having a sensor output;

d) a controller, having a sensor input connected to the sensor output of the sensor array, having a receiver input, having a power input connected to the power input of the n-to-1 multiplexer, having a command output connected to the command input of the n-to-1 multiplexer, and having a status output;

e) a receiver, having a power input connected to the power input of the n-to-1 multiplexer, having a receiving input, and having an output connected to the receiver input of the controller;

f) a transmitter, having a power input connected to the power input of the n-to-1 multiplexer, and having a transmitting output connected to the status output of the controller; and

g) n diodes, where each of the n diode has a cathode and an anode, where all of the cathodes of the n diodes are connected together, where each anode of the n diodes is connected to one of the n batteries, and where the cathodes of the n diodes are connected to the power input of the n-to-1 multiplexer.

2. The device of claim 1, wherein the sensor array is a sensor selected from the group consisting of voltage sensor, current sensor, temperature sensor, and a sensor of any combination thereof.

3. The device of claim 1, wherein the sensor output of the sensor array provides a digital representation of an analog circuit condition sensed.

4. The device of claim 1, wherein the sensor output is a bus of sufficient width to transmit an output of a user-definable accuracy.

5. The device of claim 1, wherein the controller is selected from controllers selected from the group consisting of programmable microprocessor, discrete controller, and integrated circuit controller.

6. The device of claim 2, wherein the sensor output of the sensor array provides a digital representation of an analog circuit condition sensed.

7. The device of claim 6, wherein the sensor output is a bus of sufficient width to transmit an output of a user-definable accuracy.

8. The device of claim 7, wherein the controller is selected from controllers selected from the group consisting of programmable microprocessor.'"'"', discrete controller, and integrated circuit controller.

9. A device for switching and monitoring batteries for providing power to a battery-operated device, comprising:

a) an n-to-1 multiplexer, having n multiplexer inputs, having a command input, having a power input, and having an output, where the n-to-1 multiplexer does not include a state where none of the n multiplexer inputs are connected to the output;

b) n-1 batteries, wherein each of the n-1 batteries is connected to one of the n multiplexer inputs of the n-to-1 multiplexer;

c) a sensor array, having an input connected to the output of the n-to-1 multiplexer, having a power input connected to the power input of the n-to-1 multiplexer, having a voltage output, and having a sensor output;

d) a controller, having a sensor input connected to the sensor output of the sensor array, having a receiver input, having a power input connected to the power input of the n-to-1 multiplexer, having a command output connected to the command input of the n-to-1 multiplexer, and having a status output;

e) a receiver, having a power input connected to the power input of the n-to-1 multiplexer, having a receiving input, and having an output connected to the receiver input of the controller;

f) a transmitter, having a power input connected to the power input of the n-to-1 multiplexer, and having a transmitting output connected to the status output of the controller; and

g) n-1 diodes, where each of the n-1 diode has a cathode and an anode, where all of the cathodes of the n-1 diodes are connected together, where each anode of the n-1 diodes is connected to one of the n-1 batteries, and where the cathodes of the n-1 diodes are connected to the power input of the n-to-1 multiplexer.

10. The device of claim 9, further including a ground potential connected to one of the n multiplexer inputs of the n-to-1 multiplexer.

11. The device of claim 9, wherein the sensor array is a sensor selected from the group consisting of voltage sensor, current sensor, temperature sensor, and a sensor of any combination thereof.

12. The device of claim 9, wherein the sensor output of the sensor array provides a digital representation of an analog circuit condition sensed.

13. The device of claim 9, wherein the sensor output is a bus of sufficient width to transmit an output of a user-definable accuracy.

14. The device of claim 9, wherein the controller is selected from controllers selected from the group consisting of programmable microprocessor, discrete controller, and integrated circuit controller.

15. The device of claim 11, wherein the sensor output of the sensor array provides a digital representation of an analog circuit condition sensed.

16. The device of claim 15, wherein the sensor output is a bus of sufficient width to transmit an output of a user-definable accuracy.

17. The device of claim 16, wherein the controller is selected from controllers selected from the group consisting of programmable microprocessor.'"'"', discrete controller, and integrated circuit controller.