Power supplying apparatus, design method of the same, and power generation apparatus
AssigneeCanon Kabushiki Kaisha
InventorsNobuyoshi Takehara, Fumitaka Toyomura, Masaki Suzui
Life of this patent
Estimating the term…
Abstract
Although increasing the switching frequency is effective to downsize a power supplying apparatus, the switching loss of a switching element increases if the switching frequency is increased. In a power supplying apparatus including a transformer having a very high boosting ratio, and a plurality of switching elements for supplying AC power to the primary side of the transformer, the frequency of the AC power is set to 0.25 to 2 times the self-resonance frequency of the transformer.
Claims13
A power supplying apparatus comprising:
- a transformer having a very high boosting ratio;
- and
- a plurality of switching elements for supplying AC power 0.25 to 2 times a self-resonance frequency of said transformer to a primary side of said transformer.
A design method of a power supplying apparatus comprising a transformer having a very high boosting ratio, and a plurality of switching elements for supplying AC power to a primary side of the transformer, the method comprising a step of setting a frequency of the AC power to 0.25 to 2 times a self-resonance frequency of the transformer.
Dependencies are inferred from the claim text.