BACKGROUND

Technical Field

Embodiments of the present invention relate to a power supply device.

Related Art

The induction heating device requires a power supply device that supplies high frequency power of a large current. In order for the power supply device to output a larger current, it is effective to connect a plurality of output circuits using a plurality of power semiconductors in parallel. On the other hand, the arrangement of the conductor through which a high frequency large current flows is restricted in order to reduce the inductance. Therefore, when a plurality of output circuits is provided, there is a problem that the power supply device is increased in size.

SUMMARY

An object of an embodiment of the present invention is to provide a power supply device that can be downsized.

A power supply device according to an embodiment of the present invention includes a first output unit that outputs a first alternating current, a second output unit that outputs a second alternating current, and a current combining unit that combines the first alternating current and the second alternating current. The current combining unit includes a first bus bar, a second bus bar, a first conductive member, a second conductive member, a third conductive member, and a fourth conductive member. The first conductive member is welded to a first surface of the first bus bar and connected to the first output unit. The second conductive member is welded to a second surface of the first bus bar, penetrates the second bus bar, and is connected to the second output unit. The third conductive member is welded to a first surface of the second bus bar and connected to the second output unit. The fourth conductive member is welded to a second surface of the second bus bar, penetrates the first bus bar, and is connected to the first output unit. The second surface of the first bus bar faces the second surface of the second bus bar.

According to the embodiment of the present invention, a power supply device that can be downsized can be realized.

