Title:
OSCILLATION CIRCUIT DEVICE AND SWITCHING REGULATOR
Document Type and Number:
Japanese Patent JP2018191397
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an oscillation circuit device in which a function for adjusting an oscillation frequency can be selected when overvoltage or lower voltage is inputted thereto.SOLUTION: An oscillation circuit device 6 is formed of an input voltage conversion unit 7, a reference voltage unit 8, a reference voltage adjustment unit 9, and a clock signal generation circuit 10. Whether or not to operate the reference voltage adjustment unit 9 is determined on the basis of information at the input voltage conversion unit 7 to which information about input voltage Vin is inputted, and information at the reference voltage unit 8 which generates a reference voltage. Further, the clock signal generation circuit 10 determines the frequency and cycle of a clock signal CLK on the basis of the information about the reference voltage adjustment unit 9.SELECTED DRAWING: Figure 1
Inventors:
WATANABE YUKIHIRO
Application Number:
JP2017090511A
Publication Date:
November 29, 2018
Filing Date:
April 28, 2017
Export Citation:
Assignee:
ROHM CO LTD
International Classes:
H02M3/155
Domestic Patent References:
| JP2013187716A | 2013-09-19 | |||
| JPH08162911A | 1996-06-21 | |||
| JP2001282189A | 2001-10-12 | |||
| JP2009268290A | 2009-11-12 | |||
| JP2007325334A | 2007-12-13 |
Attorney, Agent or Firm:
Sano patent office