Title:
METHOD AND SYSTEM FOR SYNCHRONIZING PHASE OF TRIANGULAR SIGNAL
Document Type and Number:
WIPO Patent Application WO/2004/070948
Kind Code:
A1
Abstract:
In a plurality of electronic devices, a triangular signal varying between an upper limit level and a lower limit level is generated by charging/discharging a capacitor. A detection signal is generated when the triangular signal becoming a master reaches a specified threshold level. In response to the detection signal, the capacitor is discharged quickly such that the triangular signal becoming a slave reaches the lower limit level. The triangular signal for slave is synchronized so as to have a specified phase difference with respect to the triangular signal for master.
Inventors:
FUKUMOTO KENICHI (JP)
Application Number:
PCT/JP2003/012240
Publication Date:
August 19, 2004
Filing Date:
September 25, 2003
Export Citation:
Assignee:
ROHM CO LTD (JP)
FUKUMOTO KENICHI (JP)
FUKUMOTO KENICHI (JP)
International Classes:
H02M7/48; H03L7/00; H05B41/24; H03K4/06; (IPC1-7): H03K4/06; H02M7/48; H03L7/00
Foreign References:
| JPH08293767A | 1996-11-05 | |||
| JP2000114936A | 2000-04-21 | |||
| JP2002084175A | 2002-03-22 | |||
| JPH03155366A | 1991-07-03 |
Attorney, Agent or Firm:
Monda, Makoto (Sueyoshi Bldg. 5F 10-5, Shinbashi 2-chom, Minato-ku Tokyo, JP)
Download PDF: