Electric power conversion systems – Current conversion – With starting arrangement
Patent
1985-08-26
1987-01-20
Wong, Peter S.
Electric power conversion systems
Current conversion
With starting arrangement
219 1077, 363 37, H02P 104, H02P 1320
Patent
active
046384189
ABSTRACT:
A power inverter particularly suited for use in applications requiring serially inductively heating workpieces in a predetermined manner, having a main inverter and an auxiliary starting inverter, in an arrangement in which the starting inverter is selectively applied and removed from the load in predetermined timed relationship with the application of the main inverter across the load, and providing a decrease in the inherent instability of the main inverter operation through an increase in the apparent Q of the load, while adjusting the output of the starting inverter to a value greater than the instability level of the main inverter.
REFERENCES:
patent: 3466528 (1969-09-01), Adams
patent: 4047092 (1977-09-01), Bendzsak
patent: 4114010 (1978-09-01), Lewis
patent: 4275438 (1981-06-01), Stirniman
patent: 4385348 (1983-05-01), Wisner
patent: 4511956 (1985-04-01), Dewan et al.
B. R. Pelly, Latest Developments in Static High Frequency Power Source for Induction Heating, IEEE Transactions of IECI, vol. IECI--17, No. 4, pp. 297-312, Jun. 1970.
Zhao, et al., A Thyristor Inverter for Medium Frequency Induction Heating, IEEE Transactions on IAS, vol. IASSI. 38A, pp. 962-965 (Oct. 5-9, 1981).
Jones Judson H.
Tocco, Inc.
Wong Peter S.
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