Refrigeration – Automatic control – Selective heating or cooling
Patent
1987-02-02
1988-04-12
Tanner, Harry B.
Refrigeration
Automatic control
Selective heating or cooling
622284, 62230, F25B 1300
Patent
active
047365951
ABSTRACT:
Disclosed is an inverter control circuit in an air-conditioner, in which the parameters for controlling the inverter are changed over depending on the open air temperature, the cooling/heating operation mode of the air conditioner, taking into consideration the fact that the allowable maximum current of semiconductor devices constituting the inverter depends on the cooling capability, and hence on the season. In the heating operation in winter where the open air temperature is low, a larger current can be caused to flow in the inverter.
REFERENCES:
patent: 3691785 (1972-09-01), Ruff et al.
patent: 4592206 (1986-06-01), Yamazaki et al.
Hitachi , Ltd.
Tanner Harry B.
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