Driver Board and Power Converter

摘要

Provided is a driver board capable of miniaturizing itself while ensuring insulation voltage resistance performance. In the driver board: a transformer 114 is configured, so as to cross a first insulating region 120a, such that a primary side terminal 114a is connected to a primary side circuit 112a and a secondary side terminal 114b is connected to a secondary side circuit 113a; a power supply control IC 115 is configured, so as to cross a insulating region 120b, such that a primary side terminal 115a is connected to a primary side circuit 112b and a secondary side terminal 115b is connected to a secondary side circuit 113b; and the insulating region 120a and the insulating region 120b are formed so as to at least partially face each other via an insulating board 111 such that the primary side circuit 112a and the secondary side circuit 113b do not face each other via the insulating board and the primary side circuit 112b and the secondary side circuit 113a do not face each other via the insulating board.

主权项

1. A driver board on which a driver circuit that drives a switching element of a power converter is mounted, the driver board comprising:
an insulating board formed in a flat plate shape; a transformer that converts an input primary side voltage to a secondary side voltage for driving the switching element; a power supply control IC that controls a current input to the transformer; a primary side circuit that is mounted on each of a first circuit region and a second circuit region and uses the primary side voltage as a power supply, the first circuit region being on one surface of the insulating board, the second circuit region being provided on another surface of the insulating board and facing the first circuit region via the insulating board; a secondary side circuit that is mounted on each of a third circuit region and a fourth circuit region, includes the driver circuit, and uses the secondary side voltage as a power supply, the third circuit region being adjacent to the first circuit region via a first insulating region on the one surface, the fourth circuit region being adjacent to the second circuit region via a second insulating region on the other surface; a first through hole that penetrates the insulating board and electrically connects the primary side circuit on the first circuit region to the primary side circuit on the second circuit region; and a second through hole that penetrates the insulating board and electrically connects the secondary side circuit on the third circuit region to the secondary side circuit on the fourth circuit region, wherein the transformer is configured, so as to cross the first insulating region, such that a primary side terminal is connected to the primary side circuit provided on the first circuit region and a secondary side terminal is connected to the secondary side circuit provided on the third circuit region, the power supply control IC is configured, so as to cross the second insulating region, such that a primary side terminal is connected to the primary side circuit provided on the second circuit region and a secondary side terminal is connected to the secondary side circuit provided on the fourth circuit region, and the first insulating region and the second insulating region are formed so as to at least partially face each other via the insulating board such that the first circuit region and the fourth circuit region do not face each other via the insulating board and the second circuit region and the third circuit region do not face each other via the insulating board.