Voltage-Fed Discontinuous Current Mode High-Frequency Inverter for Induction Heating

Voltage-fed discontinuous current mode high-frequency inverters are widely used for induction heating and melting. An exact analysis of such a circuit with series-parallel compensated load is carried out in terms of dimensionless quantities. The effect of circuit parameters on the inverter operation...

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Bibliographic Details
Published in:IEEE transactions on industrial electronics and control instrumentation 1978-08, Vol.IECI-25 (3), p.226-232
Main Authors: Roda, Murlidhar R., Revankar, G. N.
Format: Article
Language:English
Subjects:
Capacitors
Circuit optimization
Equivalent circuits
Feeds
Frequency
Impedance
Inductance
Inverters
Thyristors
Voltage
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Summary:Voltage-fed discontinuous current mode high-frequency inverters are widely used for induction heating and melting. An exact analysis of such a circuit with series-parallel compensated load is carried out in terms of dimensionless quantities. The effect of circuit parameters on the inverter operation is discussed. Minimum circuit turnoff time during transient operation is evaluated in order to specify the safe operating frequency. Control of circuit performance is discussed. It is shown that a feedback control system which maintains δ' between 35 and 40/s=deg/ ensures proper operating conditions.
ISSN:0018-9421
2375-0502
DOI:10.1109/TIECI.1978.351557