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A 98% cross-talk self-cancellation single-inductor dual-output DC-DC converter using bidirectional power prediction (BPP) control in 65nm CMOS

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8 Author(s)
Yu-Huei Lee ; Inst. of Electr. Control Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan ; Yao-Yi Yang ; Tzu-Chi Huang ; Chun-Yu Hsieh
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98% cross-talk self-cancellation is achieved by the bidirectional power prediction (BPP) control in the proposed single-inductor dual-output (SIDO) converter. The frequency-controlled resistor based on the switched-capacitor (SC) structure determines the energy correlation scheme between dual outputs. The embedded rough and fine energy trackers in the BPP controller guarantee accurate cross-talk cancellation according to both output voltages and currents. The fabricated chip occupies 1.28 mm2 in 65nm CMOS and achieves 90% peak efficiency.

Published in:

VLSI Circuits (VLSIC), 2011 Symposium on

Date of Conference:

15-17 June 2011

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