Patent ID: 11901829
Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. A power converter, comprising:
a transformer that includes a direct-current-side winding and an alternating-current-side winding;
a direct-current-side capacitor;
an alternating-current-side capacitor;
a direct-current-side circuit that includes a direct-current-side inductor, a rectification switching element, first and second direct-current connection terminals forming a pair, and a direct-current-side buffer circuit; and
an alternating-current-side circuit that includes first and second alternating-current connection terminals forming a pair, an alternating-current-side inductor, a first upper arm switching element, a second upper arm switching element, a first lower arm switching element, a second lower arm switching element, and alternating-current-side buffer circuit, wherein
a series connection of the first upper arm switching element and the first lower arm switching element and a series connection of the second upper arm switching element and the second lower arm switching element form a bridge circuit,
a node between the first upper arm switching element and the first lower arm switching element and a node between the second upper arm switching element and the second lower arm switching element are connected to each other via the first and second alternating-current connection terminals and the alternating-current-side inductor,
the direct-current-side buffer circuit includes a direct-current-side buffer switching element and a direct-current-side buffer capacitor,
the alternating-current-side buffer circuit includes an alternating-current-side buffer switching element and an alternating-current-side buffer capacitor and is connected in parallel with the bridge circuit,
the direct-current-side circuit is connected to the direct-current-side winding of the transformer via the direct-current-side capacitor, and
the alternating-current-side circuit is connected to the alternating-current-side winding of the transformer via the alternating-current-side capacitor.