J. Semicond. > 2008, Volume 29 > Issue 2 > 275-280

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A Novel Hybrid DPWM for Digital DC-DC Converters

Chen Hua, Li Shun, Niu Qi and Zhou Feng

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Abstract: We present a new hybrid digital pulse-width modulator (DPWM) for digital DC-DC converters that employs a ring-oscillator/counter structure.Based on a temperature/process compensation technique and a novel digital controller, the proposed DPWM can not only offer temperature/process-independent pulse widths, but also operate at a much higher clock frequency than the existing delay-line/counter DPWM structure.Post-simulation results show that with our DPWM, the system clock frequency reaches 156.9MHz while the worst variation, in a temperature range of 0 to 100℃ under all process corners, is only ±9.4%.

Key words: DPWMring oscillatorDC-DC converter

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    Received: 18 August 2015 Revised: 06 October 2007 Online: Published: 01 February 2008

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      Chen Hua, Li Shun, Niu Qi, Zhou Feng. A Novel Hybrid DPWM for Digital DC-DC Converters[J]. Journal of Semiconductors, 2008, In Press. Chen H, Li S, Niu Q, Zhou F. A Novel Hybrid DPWM for Digital DC-DC Converters[J]. J. Semicond., 2008, 29(2): 275.Export: BibTex EndNote
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      Chen Hua, Li Shun, Niu Qi, Zhou Feng. A Novel Hybrid DPWM for Digital DC-DC Converters[J]. Journal of Semiconductors, 2008, In Press.

      Chen H, Li S, Niu Q, Zhou F. A Novel Hybrid DPWM for Digital DC-DC Converters[J]. J. Semicond., 2008, 29(2): 275.
      Export: BibTex EndNote

      A Novel Hybrid DPWM for Digital DC-DC Converters

      • Received Date: 2015-08-18
      • Accepted Date: 2007-08-19
      • Revised Date: 2007-10-06
      • Published Date: 2008-01-31

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