Title:
電源回路
Document Type and Number:
Japanese Patent JP4425727
Kind Code:
B2
Abstract:
A power supply circuit includes a charge pump converting voltage and a regulator controlling the converting operation of the charge pump. The charge pump stops the converting operation after a first delay time from when an output of the charge pump goes over a reference level and starts the converting operation after a second delay time longer than the first delay time from when the output of the charge pump goes below the reference level.
Inventors:
Hirokazu Kawagoe
Application Number:
JP2004190575A
Publication Date:
March 03, 2010
Filing Date:
June 29, 2004
Export Citation:
Assignee:
NEC Electronics Corporation
International Classes:
H02M3/07; G05F1/10
Domestic Patent References:
| JP2001202783A | ||||
| JP2003217281A | ||||
| JP2000114969A | ||||
| JP2003198368A | ||||
| JP2004208440A | ||||
| JP2005117773A |
Attorney, Agent or Firm:
Mitsuhiro Hamada