Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Hoichi Iwamoto0
Hiroshi Emoto0
Date of Patent
April 28, 2009
0Patent Application Number
117872150
Date Filed
April 13, 2007
0Patent Primary Examiner
Patent abstract
Configurations provide reduction in the hum and the weak shocks that are produced in audio equipments where electrical power is supplied. Switching electrical power sources include, a rectification element that rectifies a current that is supplied, a switching element that switches the input voltage that has been rectified by the rectification element, an oscillator circuit that oscillates at a specified frequency and drives the switching element by means of oscillation, and a transformer with which the voltage that has been switched by the switching element is input to the primary oil and wherein an electrical power source output is obtained from a secondary coil. A plurality of capacitors are connected to the conductors.
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