RESONANT TYPE HIGH FREQUENCY POWER SUPPLY DEVICE AND SWITCHING CIRCUIT FOR RESONANT TYPE HIGH FREQUENCY POWER SUPPLY DEVICE
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United States of America Patent
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app pub date -
Oct 31, 2013
filing date -
Oct 31, 2013
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Abstract
A resonant type high frequency power supply device provided with a power semiconductor element that performs a switching operation, the resonant type high frequency power supply device including a high frequency pulse drive circuit that transmits a pulse-shaped voltage signal having a high frequency exceeding 2 MHz to the power semiconductor element to drive the above-mentioned power semiconductor element, a variable pulse signal generating circuit that transmits a pulse-shaped voltage signal having a high frequency exceeding 2 MHz to the high frequency pulse drive circuit to drive the above-mentioned high frequency pulse drive circuit, and a bias power supply circuit that supplies driving power to both the variable pulse signal generating circuit and the high frequency pulse drive circuit.
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