Bi-directional converter voltage controlled current source for voltage regulation
First Claim
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1. A bi-directional converter voltage controlled current system comprising:
- one or more voltage controlled current sources;
a bi-directional converter operable to provide a bi-directional current to an electrical bus according to a variable duty-cycle control signal;
a bi-directional current sensor operable to sense the bi-directional current to provide a sensor voltage signal proportional to the bi-directional current;
an error amplifier operable to generate an error signal based on a comparison of the sensor voltage signal to a voltage control signal;
a variable duty-cycle controller operable to generate the variable duty-cycle control signal to control a voltage of the electrical bus based on the error signal; and
a processor module coupled to the error amplifier and operable to generate the voltage control signal by at least;
generating a positive voltage control signal as the voltage control signal when the one or more voltage controlled current sources are unable to supply sufficient power to a particular load, andgenerating a negative voltage control signal as the voltage control signal when the one or more voltage controlled current sources supply sufficient power to the particular load.
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Abstract
A bi-directional converter voltage controlled current system and methods are disclosed. A bi-directional converter provides a bi-directional current to an electrical bus according to a variable duty-cycle control signal. Also, a bi-directional current sensing sensor senses the bi-directional current to provide a sensor voltage signal proportional to the converter current. Further, a variable duty-cycle controller controls a duty-cycle of the variable duty-cycle control signal to control a voltage of the electrical bus based on an error signal.
16 Citations
20 Claims
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1. A bi-directional converter voltage controlled current system comprising:
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one or more voltage controlled current sources; a bi-directional converter operable to provide a bi-directional current to an electrical bus according to a variable duty-cycle control signal; a bi-directional current sensor operable to sense the bi-directional current to provide a sensor voltage signal proportional to the bi-directional current; an error amplifier operable to generate an error signal based on a comparison of the sensor voltage signal to a voltage control signal; a variable duty-cycle controller operable to generate the variable duty-cycle control signal to control a voltage of the electrical bus based on the error signal; and a processor module coupled to the error amplifier and operable to generate the voltage control signal by at least; generating a positive voltage control signal as the voltage control signal when the one or more voltage controlled current sources are unable to supply sufficient power to a particular load, and generating a negative voltage control signal as the voltage control signal when the one or more voltage controlled current sources supply sufficient power to the particular load. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A voltage control method for a bi-directional converter voltage controlled current system, the method comprising:
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controlling a bi-directional converter coupled to an electrical bus using a variable duty-cycle control signal; sensing a bi-directional current in the bi-directional converter using a bi-directional current sensor to provide a sensor voltage signal proportional to the bi-directional current; generating an error signal based on a comparison of the sensor voltage signal to a voltage control signal using an error amplifier that is coupled to the bi-directional current sensor; generating the variable duty-cycle control signal to control a voltage of the electrical bus based on the error signal; and generating the voltage control signal using a processor module that is coupled to the error amplifier by at least; generating a positive voltage control signal as the voltage control signal when one or more voltage controlled current sources are unable to supply sufficient power to a particular load, and generating a negative voltage control signal as the voltage control signal when the one or more voltage controlled current sources supply sufficient power to the particular load. - View Dependent Claims (16, 17, 18)
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19. A method for providing a bi-directional converter voltage controlled current source, the method comprising:
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providing a bi-directional converter operable to provide a bi-directional current to an electrical bus according to a variable duty-cycle control signal; providing a bi-directional current sensor operable to sense the bi-directional current to provide a sensor voltage signal proportional to the bi-directional current; providing an error amplifier operable to generate an error signal based on a comparison of the sensor voltage signal to a voltage control signal, wherein the error amplifier is coupled to the bi-directional current sensor; providing a variable duty-cycle controller operable to generate the variable duty-cycle control signal to control a voltage of the electrical bus based on the error signal; and providing a processor module operable to generate the voltage control signal, wherein the processor module is coupled to the error amplifier, wherein the processor module is for; generating a positive voltage control signal as the voltage control signal when one or more voltage controlled current sources are unable to supply sufficient power to a particular load, and generating a negative voltage control signal as the voltage control signal when the one or more voltage controlled current sources supply sufficient power to the particular load. - View Dependent Claims (20)
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Specification