Digital State Feedback Current Control using the Pole Placement Technique


Vol. 7, No. 3, pp. 213-221, Jul. 2007
10.6113/JPE.2007.7.3.213


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 Abstract

A digital state feedback control method for the current mode control of DC-DC converters is proposed in this paper. This approach can precisely achieve interleaved current sharing among the converter modules. As the controller design and system analysis are performed in the time domain, the proposed method can easily satisfy the required converter specification by using the pole placement technique. The digital state feedback controller in the continuous and discrete time domain is derived for the robust tracking control. For the verification of the proposed control scheme, a parallel module bi-directional converter in a prototype 42V/14V hybrid automotive power system, which is a design example in the continuous time domain, and a parallel module buck converter, which is a design example in the discrete time domain, are implemented using a TMS320F2812 digital signal processor (DSP).


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Cite this article

[IEEE Style]

H. Bae, J. Yang, J. Lee and B. Cho, "Digital State Feedback Current Control using the Pole Placement Technique," Journal of Power Electronics, vol. 7, no. 3, pp. 213-221, 2007. DOI: 10.6113/JPE.2007.7.3.213.

[ACM Style]

Hyun-su Bae, Jeong-hwan Yang, Jae-ho Lee, and Bo-hyung Cho. 2007. Digital State Feedback Current Control using the Pole Placement Technique. Journal of Power Electronics, 7, 3, (2007), 213-221. DOI: 10.6113/JPE.2007.7.3.213.