An 80-V integrated boost converter for piezoelectric actuators in smartphones
- Title
- An 80-V integrated boost converter for piezoelectric actuators in smartphones
- Author
- 노정진
- Keywords
- Boost converter; Power converter; Power management
- Issue Date
- 2013-06
- Publisher
- SPRINGER
- Citation
- ANALOG INTEGRATED CIRCUITS AND SIGNAL PROCESSING, v. 75, NO. 3, Page. 531-537
- Abstract
- A boost converter for piezoelectric actuator driving system in haptic smartphones is proposed and implemented using a 0.35 mu m BCDMOS process. The designed boost converter generates extremely high output voltage from a low-voltage battery supply. The boost converter provides stable power for the piezoelectric actuator with the peak-current control technique. The minimum variation of the output ripple variation can be achieved by the designed current-sensing and peak-current control circuits. The supply voltage of the boost converter is 2.7-4.2 V and the maximum output voltage is up to 80 V. The complete piezoelectric actuator driving system consists of a serial interface, SRAM, and signal-shaping logic as well as the boost converter. It also includes the resistor-string digital-to-analog converter and high voltage piezoelectric actuator driver (PZ driver). The fabricated chip size is 2,100 x 2,200 mu m, including bonding pads.
- URI
- https://link.springer.com/article/10.1007/s10470-013-0063-5https://repository.hanyang.ac.kr/handle/20.500.11754/183432
- ISSN
- 0925-1030;1573-1979
- DOI
- 10.1007/s10470-013-0063-5
- Appears in Collections:
- COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > ELECTRICAL ENGINEERING(전자공학부) > Articles
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