Supports: cabinet structure – Spaced insulated wall – Refrigerator cabinet
Patent
1998-10-08
2000-05-02
Salata, Jonathan
Supports: cabinet structure
Spaced insulated wall
Refrigerator cabinet
361 23, H02P 700
Patent
active
060563842
ABSTRACT:
To provide a failure diagnosing circuit capable of carrying out failure diagnosis of respective switching elements of a bridge circuit without rotating a motor. Pull up/down terminals and as well as monitor terminals are respectively connected to both input terminals of a motor. The pull up/down terminals selectively provide two states: a pull up state providing voltage 5 V for failure diagnosis to the motor input terminals via resistors and a pull down state providing ground potential to the motor input terminals via the resistors. A failure diagnosing circuit switches the two states of the pull up/down terminals, opens and closes any one element of switching elements and monitors a change in the potential of the monitor terminal corresponding to each of the combinations of switching the states and opening and closing of the switching elements by which failure diagnosis of the opened and closed switching element is carried out.
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patent: 5153487 (1992-10-01), Hennig
patent: 5510725 (1996-04-01), Schantz, Jr. et al.
patent: 5703490 (1997-12-01), Kennedy
patent: 5726541 (1998-03-01), Glenn et al.
patent: 5825597 (1998-10-01), Young
Nanri Takehiko
Sato Morio
Honda Giken Kogyo Kabushiki Kaisha
Salata Jonathan
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