Patent ID: 11862384
Assignee: TDK CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A transformer having a primary coil, a first secondary coil and a second secondary coil, the first secondary coil comprising:
a first plate coil;
a second plate coil; and
a first holding portion formed between one end of the first plate coil and one end of the second plate coil,
the second secondary coil comprising:
a third plate coil;
a fourth plate coil; and
a second holding portion formed between one end of the third plate coil and one end of the fourth plate coil, and has a connection hole that is notched,
the first secondary coil is formed such that the first plate coil and the second plate coil are opposed to each other substantially in parallel, the second secondary coil is formed such that the third plate coil and the fourth plate coil are opposed to each other substantially in parallel,
the first secondary coil is arranged between the third plate coil and the fourth plate coil of the second secondary coil, the other end of the first plate coil and the other end of the third plate coil are connected by solder, and the other end of the second plate coil and the other end of the fourth plate coil are connected by solder,
when a secondary-side rectifier circuit connected to the transformer is a center-tapped rectifier circuit, the first holding portion, the second holding portion, and a bus bar are connected by solder through the connection hole, when the secondary-side rectifier circuit is a rectifier circuit other than the center-tapped rectifier circuit, the first holding portion and the second holding portion are connected by solder through the connection hole.