Patent ID: 11936304
Assignee: MITSUBISHI ELECTRIC CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  F  Y | IPC F  H

Claim 0:
1. A DC/DC converter circuit, comprising:
a primary-side circuit configured to convert DC power from a DC power source into a pulse voltage;
an isolation transformer configured to transform the pulse voltage while isolating the pulse voltage;
a secondary-side circuit connectable in a switching manner by a switching circuit to one of a rectifier circuit for a high-voltage low-current output mode or a current doubler circuit for a low-voltage high-current output mode; and
a control circuit configured to perform connection switching control of the switching circuit so as to establish, depending on target supply power, connection to the rectifier circuit in the high-voltage low-current output mode, and connection to the current doubler circuit in the low-voltage high-current output mode,
wherein the control circuit is configured to determine that the DC/DC converter circuit is in the high-voltage low-current output mode and connect the switching circuit in the switching manner to the rectifier circuit when the target supply power is equal to or higher than ½ of a maximum output voltage, and determine that the DC/DC converter circuit is in the low-voltage high-current output mode and connect the switching circuit in the switching manner to the current doubler circuit when the target supply power is lower than ½ of the maximum output voltage.