H - Electricity – 03 – K
Patent
H - Electricity
03
K
328/193, 321/27,
H03K 17/62 (2006.01) H02M 3/155 (2006.01) H02M 3/28 (2006.01) H02M 3/335 (2006.01) H02M 7/537 (2006.01) H03F 3/217 (2006.01)
Patent
CA 1127247
ABSTRACT OF THE DISCLOSURE A high frequency switching circuit in which, to reduce power dissipation of a switching element, the characteristic impedance defined by the inductance of a transformer connected in series with the switching element and the capacitance of a capacitor connected in parallel with the switching element, the ratio of the input voltage and an output voltage, and the ratio of ON time and a switching period T of the switching element are each selected within a given range. Alternatively, a ratio pertaining to a leakage inductance of the transformer and an inductance of an additional inductor, and a ratio per- taining to the output and input voltages are selected to satis- fy a predetermined relation and the characteristic impedance is selected within a given range.
347679
Masuda Youichi
Nakajima Akira
Onodera Toshihiro
Ridout & Maybee Llp
Tokyo Shibaura Denki Kabushiki Kaisha
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