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Digital PWM controller with one-bit noise-shaping interface
- Authors
- Roh, Jeongjin
- Issue Date
- Oct-2006
- Publisher
- SPRINGER
- Keywords
- DC-DC converter; pulse width modulation; buck converter; delta-sigma modulation; noise shaping
- Citation
- ANALOG INTEGRATED CIRCUITS AND SIGNAL PROCESSING, v.49, no.1, pp 11 - 17
- Pages
- 7
- Indexed
- SCIE
SCOPUS
- Journal Title
- ANALOG INTEGRATED CIRCUITS AND SIGNAL PROCESSING
- Volume
- 49
- Number
- 1
- Start Page
- 11
- End Page
- 17
- ISSN
- 0925-1030
1573-1979
- Abstract
- Conventionally, pulse width modulation (PWM) controllers for DC-DC switching power converters have been implemented in pure analog circuits. However, recent research showed the possibility of digital controllers with several advantages such as robustness, fast design time, and high flexibility. Since DC-DC converted output voltage is analog in nature, an analog-to-digital interface circuit is always essential even in digital PWM controllers. A simple and efficient delta-sigma modulator is used as a conversion circuit in our silicon implementation. Measurement results show good voltage regulations.
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Related Researcher
- Roh, Jeong jin
- ERICA 공학대학 (SCHOOL OF ELECTRICAL ENGINEERING)