Charge pump having two sub charge pumps which incl
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专利名称：Charge pump having two sub charge pumps
which include a common charge/discharge
terminal
发明人：Atsushi Kawasumi
申请号：US09163084
申请日：19980929
公开号：US06415007B1
公开日：
20020702
专利内容由知识产权出版社提供
专利附图：
摘要：A charge pump according to the invention has first and second sub charge pumps which include a common charging/discharging terminal and perform
charging/discharging operations. When the first sub charge pump is operated, and electricity to be offset is charged or discharged due to a junction capacitor located at a PN junction which exists between transistors included in the first sub charge pump, the second sub charge pump performs a discharging operation if the electricity is charged, and a charging operation if it is discharged, in order to offset the electricity. Moreover, while the first sub charge pump performs a charging operation, the second sub charge pump performs a charging operation for a time period shorter by a predetermined time period than the charging period of the first sub charge pump. On the other hand, while the first sub charge pump performs a discharging operation, the second sub charge pump performs a discharging operation for a time period shorter by a predetermined time period than the discharging period of the first sub charge pump.
申请人：KABUSHIKI KAISHA TOSHIBA
代理机构：Hogan & Hartson, L.L.P.
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