Abstract
A power-efficient Dickson-based charge pump circuit is proposed and verified in this paper. Using a PMOS transfer switch in the new circuit solves the problem of the output voltage loss and its body control switch can suppress the parasitic bipolar action. Comparing this new one with the conventional circuit, the new circuit generates output voltage as high as 2.9VDD while the conventional one only 2VDD. For their efficiency values, the new circuit has better efficiency than the conventional one by as much as 14.5% with the area overhead of 12.2% using 3.5-μm and 40-V CMOS high-voltage process.
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