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POWER SUPPLY APPARATUS

  • US 20170033702A1
  • Filed: 04/06/2015
  • Published: 02/02/2017
  • Est. Priority Date: 04/08/2014
  • Status: Active Grant
First Claim
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1. A power supply apparatus comprising:

  • a stack assembly comprising;

    a transformer including a primary coil and a secondary coil; and

    a first semiconductor device constituting a primary circuit connected to the primary coil of the transformer,one of the transformer and the first semiconductor device being stacked on the other thereof to constitute the stack assembly;

    a second semiconductor device constituting a secondary circuit connected to the secondary coil of the transformer;

    a choke coil connected to the second semiconductor device;

    a base plate having a major surface, the stack assembly, the second semiconductor device, and the choke coil being located on the major surface;

    a primary direct-current wire connecting the first semiconductor device to a direct-current power source and drawn out from a first predetermined portion of the stack assembly; and

    a primary alternating-current wire connecting the first semiconductor device and the transformer and drawn out from a second predetermined portion of the stack assembly,the primary direct-current wire and the primary alternating-current wire being located to be separated from each other via at least a part of the stack assembly.

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