A Low Cost Digital Controller for a Switching DC-DC Converter with Improved Voltage Regulation

David Allee (Inventor), Armando Rodriguez (Inventor)

Research output: Patent

Abstract

A new control algorithm with improved regulation is presented for a switching dc buck converter. The controller is realized with Hardware Description Language (HDL) and can be implemented in any process. The controller uses four decision levels, combines pulse frequency modulation (PFM) and pulse width modulation (PWM), and uses dithering for improved regulation. The controller is prototyped on a field programmable gate array (FPGA) and experimental results show good performance over input and load disturbances. Importantly, the controller does not require high-resolution analog to digital conversion for signal processing and also does not require fast digital clocking. This controller has significant potential to be widely used in industrial applications where cost and design time are of great concern.
Original languageEnglish (US)
StatePublished - Feb 20 2004

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DC-DC converters
Voltage control
Controllers
Costs
Pulse time modulation
Computer hardware description languages
Analog to digital conversion
Pulse width modulation
Industrial applications
Field programmable gate arrays (FPGA)
Signal processing

Cite this

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abstract = "A new control algorithm with improved regulation is presented for a switching dc buck converter. The controller is realized with Hardware Description Language (HDL) and can be implemented in any process. The controller uses four decision levels, combines pulse frequency modulation (PFM) and pulse width modulation (PWM), and uses dithering for improved regulation. The controller is prototyped on a field programmable gate array (FPGA) and experimental results show good performance over input and load disturbances. Importantly, the controller does not require high-resolution analog to digital conversion for signal processing and also does not require fast digital clocking. This controller has significant potential to be widely used in industrial applications where cost and design time are of great concern.",
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N2 - A new control algorithm with improved regulation is presented for a switching dc buck converter. The controller is realized with Hardware Description Language (HDL) and can be implemented in any process. The controller uses four decision levels, combines pulse frequency modulation (PFM) and pulse width modulation (PWM), and uses dithering for improved regulation. The controller is prototyped on a field programmable gate array (FPGA) and experimental results show good performance over input and load disturbances. Importantly, the controller does not require high-resolution analog to digital conversion for signal processing and also does not require fast digital clocking. This controller has significant potential to be widely used in industrial applications where cost and design time are of great concern.

AB - A new control algorithm with improved regulation is presented for a switching dc buck converter. The controller is realized with Hardware Description Language (HDL) and can be implemented in any process. The controller uses four decision levels, combines pulse frequency modulation (PFM) and pulse width modulation (PWM), and uses dithering for improved regulation. The controller is prototyped on a field programmable gate array (FPGA) and experimental results show good performance over input and load disturbances. Importantly, the controller does not require high-resolution analog to digital conversion for signal processing and also does not require fast digital clocking. This controller has significant potential to be widely used in industrial applications where cost and design time are of great concern.

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