CONTROLLER

CONTROLLER

PROBLEM TO BE SOLVED: To provide a user-friendly controller of the outdoor unit of an air-conditioner in which precision is enhanced in estimation of lifetime of an electrolytic capacitor. SOLUTION: The controller 4 for controlling the outdoor unit 2 of an air-conditioner comprises a converter 8, a...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: DOMAE HIROSHI, KAGIMURA NORIO, SATO TOSHIAKI
Format: Patent
Sprache:eng
Schlagworte:
APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS
CONTROL OR REGULATION THEREOF
CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
GENERATION
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide a user-friendly controller of the outdoor unit of an air-conditioner in which precision is enhanced in estimation of lifetime of an electrolytic capacitor. SOLUTION: The controller 4 for controlling the outdoor unit 2 of an air-conditioner comprises a converter 8, a current detection circuit 44, and a microcomputer 5. The converter 8 converts the output from an AC power supply 7 into DC power. The current detection circuit 44 detects the current flowing through an electrolytic capacitor 83 connected for a smoothing circuit in the converter 8. The microcomputer 5 reads the leakage current of the electrolytic capacitor 83 from the current detected by the current detection circuit 44. Furthermore, the microcomputer 5 predicts failure or lifetime of the electrolytic capacitor 83 using the data of leakage current. COPYRIGHT: (C)2008,JPO&INPIT