ANALOG INTEGRATOR SYSTEM AND METHOD

• US 20140354343A1
• Filed: 06/04/2014
• Published: 12/04/2014
• Est. Priority Date: 06/04/2013
• Status: Active Grant

• Current Assignee: EHT Ventures LLC
• Original Assignee: Eagle Harbor Technolologies, Inc.
• Inventors: Ziemba, Timothy, Miller, Kenneth E., Carscadden, John G., Prager, James, Slobodov, Ilia, Lotz, Daniel Edward
• Granted Patent: US 9,495,563 B2
• Time in Patent Office: Days
• US Class Current: 327/336
• CPC Class Codes: G06G 7/18 for integration or differentiation; for forming integrals G06G7/19 takes precedence

Abstract

Systems and methods are disclosed to integrate signals. Some embodiments include an integrator comprising an active input; a passive input; a first integrator having a first integrator input and a first integrator output; a second integrator having a second integrator input and a second integrator output; a first plurality of switches coupled with the first integrator input, the second integrator input, the active input, and the passive input; a second plurality of switches coupled with the first integrator output and the second integrator output; and a controller. The controller may be configured to control the operation of the first plurality of switches to switch the active input between the first integrator input and the second integrator input, and control the operation of the first plurality of switches to switch the passive input between the first integrator input and the second integrator input.

Claims

1. An integrator circuit comprising:

an active input;

a passive input;

a first integrator having a first integrator input and a first integrator output;

a second integrator having a second integrator input and a second integrator output;

a first plurality of switches coupled with the first integrator input, the second integrator input, the active input, and the passive input;

a second plurality of switches coupled with the first integrator output and the second integrator output; and

a controller coupled with the first plurality of switches and the second plurality of switches, configured to control the operation of the first plurality of switches to switch the active input between the first integrator input and the second integrator input, and configured to control the operation of the first plurality of switches to switch the passive input between the first integrator input and the second integrator input.

2. The integrator circuit according to claim 1, wherein the first plurality of switches are configured to switch the first integrator input between the active input and the passive input, and wherein the first plurality of switches are configured to switch the second integrator input between the active input and the passive input.

3. The integrator circuit according to claim 1, wherein the controller, the first plurality of switches, and the second plurality of switches comprise a field-programmable gate array.

4. The integrator circuit according to claim 1, further comprising:

an active output; and

a passive output,

wherein the controller is configured to control the operation of the second plurality of switches to switch the first integrator output between the active output and the passive output, and wherein the controller is configured to control the operation of the second plurality of switches to switch the second integrator output between the active output and the passive output.

5. The integrator circuit according to claim 1, wherein the controller is further configured to control the operation of the first plurality of switches to switch the active input between the first integrator input and the second integrator input at the same time as controlling the operation of the second plurality of switches to switch the passive input between the first integrator input and the second integrator input.

6. The integrator circuit according to claim 1, wherein the controller is further configured to periodically control the operation of the first plurality of switches to switch the active input between the first integrator input and the second integrator input and periodically control the operation of the second plurality of switches to switch the passive input between the first integrator input and the second integrator input.

7. The integrator circuit according to claim 1, wherein the controller is further configured to:

sense an output of the first integrator and/or the second integrator; and

determine whether to control the operation of the first plurality of switches and the second plurality of switches based on the output of the first integrator and/or the second integrator.

8. The integrator circuit according to claim 1, wherein the controller is further configured to combine an output of the first integrator and the second integrator.

9. The integrator circuit according to claim 1, wherein the active input and the passive input have substantially similar resistance, inductance, and/or capacitance.

10. A method comprising:

integrating an active input signal from an active input with a first integrator;

integrating a passive input signal from a passive input with a second integrator, wherein the passive input signal includes substantially no voltage or current;

switching a first plurality of switches coupled with the active input signal, the first integrator, the passive input signal, and the second integrator;

integrating the active input signal with the second integrator; and

integrating the passive input signal with the first integrator.

11. The method according to claim 10, wherein the active input and the passive input have substantially similar resistance, inductance, and/or capacitance.

12. The method according to claim 10,

wherein the integrating the active input signal with the first integrator further comprises integrating the active input signal with the first integrator while a first integrator output of the first integrator is coupled with an active output;

and

wherein the integrating the passive input signal with the second integrator further comprises integrating the passive input signal with the second integrator while a second integrator output of the second integrator is coupled with a passive output, wherein the active output and the passive output have substantially similar resistance, inductance, and/or capacitance.

13. The method according to claim 12, further comprising switching a second plurality of switches in conjunction with switching the first plurality of switches, wherein the second plurality of switches are coupled with the active output, the passive output, the first integrator output, and the second integrator output.

14. The method according to claim 10, further comprising determining whether a predetermined period of time has elapsed;

and wherein the switching a first plurality of switches occurs in response to the determining whether a predetermined period of time has elapsed.

15. The method according to claim 10, further comprising:

sensing an output of the first integrator and/or the second integrator; and

determining whether to control the operation of the first plurality of switches based on the output of the first integrator and/or the second integrator,

wherein the switching a first plurality of switches occurs in response to the determining whether to control the operation of the first plurality of switches.

16. The method according to claim 10, further comprising combining an output of the first integrator and the second integrator.

17. A method comprising:

integrating an active input with a first integrator during a first time period to produce first integration data;

integrating the active input with a second integrator during a second time period to produce second integration data;

integrating the active input with the first integrator during a third time period to produce third integration data;

integrating the active input with the second integrator during a fourth time period to produce fourth integration data; and

combining the first integration data, the second integration data, the third integration data, and the fourth integration data to produce integration data of the active input signal over the total time period comprising the first time period, the second time period, the third time period, and the fourth time period.