Induction heating apparatus with unsuitable load detecting circu

Details Induction heating apparatus with unsuitable load detecting circu Induction heating apparatus with unsuitable load detecting circu

1986-04-10

1987-08-11

Leung, Philip H.

Electric heating

Metal heating

Of cylinders

219 1049R, 363 97, H05B 606

Patent

active

046863400

ABSTRACT:
An electromagnetic induction heating apparatus having a detecting circuit for detecting an unsuitable load thereof, which detects an input AC power and an exciting current for an inverter so that the levels thereof are compared with each other to discriminate whether or not the load is suitable and it is possible to discriminate the load with accuracy regardless of the height of set level for the input power and current intensity of the detected exciting current, is biased, thereby raising the unsuitable load detection accuracy when oscillation starts.

REFERENCES:
patent: 4145592 (1979-03-01), Mizukawa et al.
patent: 4320273 (1982-03-01), Kiuchi
patent: 4356371 (1982-10-01), Kiuchi et al.
patent: 4438311 (1984-03-01), Tazima et al.
patent: 4540866 (1985-09-01), Okuda

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