Power conversion device

In a resonance-type induction heating device performing operation via delaying motions, when a load abnormity, etc. becomes an advanced motion, a diode of an inverter circuit is made to perform reverse recovery and be destroyed. The invention provides a power conversion device, which is provided wit...

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Bibliographic Details
Main Authors MIURA TOSHIEI, KURATA GEN
Format Patent
LanguageChinese
English
Published 09.11.2011
Subjects
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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Summary:In a resonance-type induction heating device performing operation via delaying motions, when a load abnormity, etc. becomes an advanced motion, a diode of an inverter circuit is made to perform reverse recovery and be destroyed. The invention provides a power conversion device, which is provided with a voltage detecting circuit detecting voltages among main terminals of a semiconductor element, a voltage comparing circuit comparing a voltage setting value and a voltage detecting value, when the semiconductor element is cut off, the voltage setting value and the voltage detecting value are compared, when the voltage setting value is larger, the semiconductor element is in a serial connection, and the semiconductor element is not turned on to construct upper-lower relative arms.
Bibliography:Application Number: CN20111105147