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A 9–11-Bit Phase-Interpolating Digital Pulsewidth Modulator With 1000x Frequency Range.

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Title: A 9–11-Bit Phase-Interpolating Digital Pulsewidth Modulator With 1000x Frequency Range.
Authors: Lee, Yoontaek, Kang, Taewook, Kim, Jaeha
Source: IEEE Transactions on Industry Applications. Jul2015, Vol. 51 Issue 4, p3376-3384. 9p.
Subjects: Pulse width modulation, Digital counters, Interpolation, Digital-to-analog converters, Energy consumption, Relaxation oscillators, Integrated circuits, Metal oxide semiconductors
Abstract: A design of a new hybrid-type digital pulsewidth modulator (DPWM) with a wide frequency range of 1000 : 1, from 10 kHz to 10 MHz, is presented. The proposed DPWM has the maximum duty-cycle resolution of 11 bits and consumes the power of 17.5 \mu\mboxW at 10 kHz and 2.36 mW at 10 MHz, respectively. The proposed DPWM realizes the upper 5-bit resolution using a programmable digital counter and the lower 6-bit resolution using a current-integrating-type phase interpolator, employing an M2M-ladder current-steering digital-to-analog converter for low power consumption. The operating clock is generated in on-chip using a relaxation oscillator. The prototype integrated circuit fabricated in a 0.25- \mu\mboxm high-voltage complementary metal–oxide–semiconductor demonstrates that the proposed DPWM maintains a good linearity across the entire operating range. [ABSTRACT FROM PUBLISHER]
Copyright of IEEE Transactions on Industry Applications is the property of IEEE and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: <searchLink fieldCode="AR" term="%22Lee%2C+Yoontaek%22">Lee, Yoontaek</searchLink><br /><searchLink fieldCode="AR" term="%22Kang%2C+Taewook%22">Kang, Taewook</searchLink><br /><searchLink fieldCode="AR" term="%22Kim%2C+Jaeha%22">Kim, Jaeha</searchLink>
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  Data: <searchLink fieldCode="DE" term="%22Pulse+width+modulation%22">Pulse width modulation</searchLink><br /><searchLink fieldCode="DE" term="%22Digital+counters%22">Digital counters</searchLink><br /><searchLink fieldCode="DE" term="%22Interpolation%22">Interpolation</searchLink><br /><searchLink fieldCode="DE" term="%22Digital-to-analog+converters%22">Digital-to-analog converters</searchLink><br /><searchLink fieldCode="DE" term="%22Energy+consumption%22">Energy consumption</searchLink><br /><searchLink fieldCode="DE" term="%22Relaxation+oscillators%22">Relaxation oscillators</searchLink><br /><searchLink fieldCode="DE" term="%22Integrated+circuits%22">Integrated circuits</searchLink><br /><searchLink fieldCode="DE" term="%22Metal+oxide+semiconductors%22">Metal oxide semiconductors</searchLink>
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  Data: A design of a new hybrid-type digital pulsewidth modulator (DPWM) with a wide frequency range of 1000 : 1, from 10 kHz to 10 MHz, is presented. The proposed DPWM has the maximum duty-cycle resolution of 11 bits and consumes the power of 17.5 \mu\mboxW at 10 kHz and 2.36 mW at 10 MHz, respectively. The proposed DPWM realizes the upper 5-bit resolution using a programmable digital counter and the lower 6-bit resolution using a current-integrating-type phase interpolator, employing an M2M-ladder current-steering digital-to-analog converter for low power consumption. The operating clock is generated in on-chip using a relaxation oscillator. The prototype integrated circuit fabricated in a 0.25- \mu\mboxm high-voltage complementary metal–oxide–semiconductor demonstrates that the proposed DPWM maintains a good linearity across the entire operating range. [ABSTRACT FROM PUBLISHER]
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  Data: <i>Copyright of IEEE Transactions on Industry Applications is the property of IEEE and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1109/TIA.2015.2411656
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      – Code: eng
        Text: English
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      – SubjectFull: Pulse width modulation
        Type: general
      – SubjectFull: Digital counters
        Type: general
      – SubjectFull: Interpolation
        Type: general
      – SubjectFull: Digital-to-analog converters
        Type: general
      – SubjectFull: Energy consumption
        Type: general
      – SubjectFull: Relaxation oscillators
        Type: general
      – SubjectFull: Integrated circuits
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      – SubjectFull: Metal oxide semiconductors
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              Text: Jul2015
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