Title:
PULSE FREQUENCY CONTROL CIRCUIT, MICROCONTROLLER, DC-DC CONVERTER, AND PULSE FREQUENCY CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2018/096973
Kind Code:
A1
Abstract:
A pulse frequency control circuit (1) includes: a selection circuit (12) for acquiring and selecting a plurality of reference clocks having different phases with the same reference period; a setting register (13) for storing information specifying a set period a unit of which is a first period of time shorter than the reference period; and a control circuit (15) for controlling, on the basis of the information stored in the setting register (13), the selection circuit (12) to sequentially and repeatedly select, as rising determined edges, rising edges that rise at intervals of the set period from among rising edges of the plurality of reference clocks. The selection circuit (12) sequentially and repeatedly generates output pulses that rise at every timing of the selected rising determined edges, thereby outputting an output pulse train comprising the output pulses.
Inventors:
IMAMURA KATSUYUKI
MOTO TAKEAKI
MOTO TAKEAKI
Application Number:
PCT/JP2017/040869
Publication Date:
May 31, 2018
Filing Date:
November 14, 2017
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H03K3/02; H02M3/28; H03K3/017; H03K5/05; H03K7/08; H03K23/64
Foreign References:
| JP2007329745A | 2007-12-20 | |||
| JPH05218832A | 1993-08-27 | |||
| JP2000236241A | 2000-08-29 | |||
| JP2001001568A | 2001-01-09 | |||
| JP2004032732A | 2004-01-29 |
Attorney, Agent or Firm:
KAMATA Kenji et al. (JP)
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