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PURPOSE:To obtain a high output with a low-voltage DC power source by providing two switching elements and a control means on an inverter circuit, and controlling the switching elements so that the circuit current reaches a peak during the second half part of the on-period of the switching elements....

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Bibliographic Details
Main Authors OKAMOTO MITSUHISA, KODAMA HIROICHI
Format Patent
LanguageEnglish
Published 19.08.1992
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
ELECTRIC HEATING
ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
GENERATION
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Summary:PURPOSE:To obtain a high output with a low-voltage DC power source by providing two switching elements and a control means on an inverter circuit, and controlling the switching elements so that the circuit current reaches a peak during the second half part of the on-period of the switching elements. CONSTITUTION:A control circuit 10 controls switching element driving circuits 9a, 9b to switch the primary side current of a booster transformer 3. Power transistors(Tr) 8a, 8b are turned on or off in turn, a voltage doubler capacitor 7 is charged, and a current is fed to a magnetron 5 to continuously oscillate it. The leakage inductance of the transformer 3, the capacitance of the capacitor 7 and the on-period of Tr 8a, 8b are adjusted so that the current flowing in the Tr 8a, 8b reaches a peak during the second half part of the on-period of switching elements. The two switching elements are prevented from being concurrently turned on to cause the short circuit state, and a power circuit with a high output is obtained.
Bibliography:Application Number: JP19910138738