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Quantization resolution and limit cycling in digitally controlled PWM converters

Publication ,  Journal Article
Peterchev, AV; Sanders, SR
Published in: IEEE Transactions on Power Electronics
2003

This paper discusses the presence of steady-state limit cycles in digitally controlled pulse-width modulation (PWM) converters, and suggests conditions on the control law and the quantization resolution for their elimination. It then introduces single-phase and multi-phase controlled digital dither as a means of increasing the effective resolution of digital PWM (DPWM) modules, allowing for the use of low resolution DPWM units in high regulation accuracy applications. Bounds on the number of bits of dither that can be used in a particular converter are derived. Finally, experimental results confirming the theoretical analysis are presented.

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Published In

IEEE Transactions on Power Electronics

DOI

Publication Date

2003

Volume

18

Issue

1 II

Start / End Page

301 / 308

Related Subject Headings

  • Electrical & Electronic Engineering
  • 4009 Electronics, sensors and digital hardware
  • 4008 Electrical engineering
  • 0906 Electrical and Electronic Engineering
 

Citation

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Peterchev, A. V., & Sanders, S. R. (2003). Quantization resolution and limit cycling in digitally controlled PWM converters. IEEE Transactions on Power Electronics, 18(1 II), 301–308. https://doi.org/10.1109/TPEL.2002.807092
Peterchev, A. V., and S. R. Sanders. “Quantization resolution and limit cycling in digitally controlled PWM converters.” IEEE Transactions on Power Electronics 18, no. 1 II (2003): 301–8. https://doi.org/10.1109/TPEL.2002.807092.
Peterchev AV, Sanders SR. Quantization resolution and limit cycling in digitally controlled PWM converters. IEEE Transactions on Power Electronics. 2003;18(1 II):301–8.
Peterchev, A. V., and S. R. Sanders. “Quantization resolution and limit cycling in digitally controlled PWM converters.” IEEE Transactions on Power Electronics, vol. 18, no. 1 II, 2003, pp. 301–08. Scival, doi:10.1109/TPEL.2002.807092.
Peterchev AV, Sanders SR. Quantization resolution and limit cycling in digitally controlled PWM converters. IEEE Transactions on Power Electronics. 2003;18(1 II):301–308.

Published In

IEEE Transactions on Power Electronics

DOI

Publication Date

2003

Volume

18

Issue

1 II

Start / End Page

301 / 308

Related Subject Headings

  • Electrical & Electronic Engineering
  • 4009 Electronics, sensors and digital hardware
  • 4008 Electrical engineering
  • 0906 Electrical and Electronic Engineering