High-efficiency charge-pump circuits with large current output for mobile equipment applications

Citation
T. Myono et al., High-efficiency charge-pump circuits with large current output for mobile equipment applications, IEICE TR EL, E84C(10), 2001, pp. 1602-1611
Citations number
9
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Eletrical & Eletronics Engineeing
Journal title
IEICE TRANSACTIONS ON ELECTRONICS
ISSN journal
0916-8524 → ACNP
Volume
E84C
Issue
10
Year of publication
2001
Pages
1602 - 1611
Database
ISI
SICI code
0916-8524(200110)E84C:10<1602:HCCWLC>2.0.ZU;2-1
Abstract
This paper presents improved versions of three-stage positive-output and tw o-stage negative-output Dickson charge-pump circuits which are intended to replace switching regulators in video-product CCD driver applications (wher e 12 V and -6.5V are needed), and are designed and fabricated in a custom C MOS process. From a power supply V-dd of 4.0 to 5.5 V, the positive charge pump generates a positive output voltage of greater than 3.9(Vdd), while th e negative charge pump generates a negative voltage of greater than -1-9(Vd d), both with efficiencies of greater than 94% at 2 mA output currents.