To solve a problem that, due to an increase in product cost and the shortage of a storage space in equipment, it is difficult to incorporate a highly accurate frequency measurement means into an electric power demand side, in particular, a home refrigerating cycle device and difficult to widely spread a refrigerating cycle device capable of determining the supply and demand balance of electric power based on the frequency of a power source.
This refrigerating cycle device includes: a control device equipped with a microcomputer and controlling the operation of a refrigerating cycle; a power source zero-crossing circuit provided in the control device and detecting a voltage zero point of an AC voltage of a power source inputted to the refrigerating cycle device; and a power source frequency measurement circuit comprising the power source zero-crossing circuit and the microcomputer and measuring the frequency of the power source by acquiring a cycle of the AC voltage of the power source by the microcomputer based on intervals of the voltage zero points detected by the power source zero-crossing circuit.
ISHII MINORU
YOSHIKAWA YOSHIHIKO
| JPH10257796A | 1998-09-25 | |||
| JPH0669638U | 1994-09-30 | |||
| JPH07135798A | 1995-05-23 | |||
| JPH09145754A | 1997-06-06 | |||
| JPH07317591A | 1995-12-05 | |||
| JPH0835712A | 1996-02-06 | |||
| JP2000081239A | 2000-03-21 | |||
| JPH07135798A | 1995-05-23 | |||
| JPH09145754A | 1997-06-06 | |||
| JPH07317591A | 1995-12-05 | |||
| JPH0835712A | 1996-02-06 | |||
| JP2000081239A | 2000-03-21 | |||
| JPH10257796A | 1998-09-25 | |||
| JPH0669638U | 1994-09-30 |
| WO2007094054A1 | 2007-08-23 | |||
| WO2007094054A1 | 2007-08-23 |
Tadahiko Inaba
Kanako Murakami
Nakatsuru Kazutaka