POWER SUPPLY CONTROL
First Claim
1. An uninterruptable power supply, comprising:
- an input circuit including a first transistor and a first inductor, and configured to receive an AC voltage at an input and provide a DC voltage at an output;
a controller having a digital signal processor and a field programmable gate array and coupled to the input circuit to detect inductor current and to provide a detected inductor current value to the digital signal processor; and
the controller configured to apply a pulse width modulation control signal to the first transistor to adjust a switching frequency of the first transistor to generate the DC voltage at the output.
2 Assignments
0 Petitions
Accused Products
Abstract
Systems and methods for operating an uninterruptable power supply are provided. The uninterruptable power supply may include a rectifier that has a transistor and an inductor. The uninterruptable power supply may also include a controller. A current sensor can be configured to detect inductor current and to provide a detected inductor current value to the controller to generate a current error value based and to generate a pulse width modulation control signal based in part on the current error value. The controller can apply the pulse width modulation control signal to the transistor to adjust a switching frequency of the transistor.
-
Citations
20 Claims
-
1. An uninterruptable power supply, comprising:
-
an input circuit including a first transistor and a first inductor, and configured to receive an AC voltage at an input and provide a DC voltage at an output; a controller having a digital signal processor and a field programmable gate array and coupled to the input circuit to detect inductor current and to provide a detected inductor current value to the digital signal processor; and the controller configured to apply a pulse width modulation control signal to the first transistor to adjust a switching frequency of the first transistor to generate the DC voltage at the output. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
-
14. A method of operating an uninterruptable power supply including an input circuit and a controller, the input circuit having a first transistor, and a first inductor, and the controller having a digital signal processor and a field programmable gate array, the method comprising:
-
detecting inductor current of the input circuit; providing a detected inductor current value to the digital signal processor; generating a current error value based in part on the detected inductor current value; providing the current error value to the field programmable gate array; generating a pulse width modulation control signal based in part on the current error value; and applying the pulse width modulation control signal to the first transistor to control a switching frequency of one of the first transistor and the second transistor. - View Dependent Claims (15, 16, 17, 18)
-
-
19. An uninterruptable power supply, comprising:
-
an input circuit including a first transistor, a second transistor, and an inductor; a controller having a digital signal processor and a field programmable gate array and coupled to the input circuit to detect inductor current and to provide a detected inductor current value to the digital signal processor; and means for applying a pulse width modulation control signal to one of the first transistor and the second transistor to adjust a switching frequency of one of the first transistor and the second transistor. - View Dependent Claims (20)
-
Specification