Gate driving apparatus
AssigneeFuji Electric Co., Ltd.
InventorKiyoshi Takahashi
Life of this patent
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Abstract
Two insulation covers that can be vertically separated clamp a gate-driving-circuit substrate so as to form a gate driving apparatus. The gate driving apparatus is fixed to a cooler by fixing screws inserted through a pair of insertion bores in the two insulation covers that are arranged in a horizontal direction. A gate control terminal and a ground control terminal provided on the gate-driving-circuit substrate are screwed and fixed to, and thus electrically and mechanically connected to, a corresponding gate control terminal and a corresponding ground control terminal of a power module attached to the cooler. This allows the gate-driving-circuit substrate to be covered with the insulation covers for insulation protection and to be fixed to the cooler using a fixing member such as a screw.
Claims17
A gate driving apparatus for driving a power module, the gate driving apparatus comprising:
- a gate-driving-circuit substrate including
- a gate control terminal, and a ground control terminal electrically connectable to a power module gate control terminal and a power module ground control terminal, respectively, and
- a gate driver circuit for supplying driving signals to drive the power module;
- and
- an insulation cover covering portions of the gate-driving-circuit substrate other than the gate control terminal and the ground control terminal of the gate-driving-circuit substrate, the portions covered by the insulation cover including the gate driver circuit, the gate-driving-circuit substrate being clamped and fixed within the insulation cover.
A power module device, comprising:
- a power module including a power module gate control terminal and a power module ground control terminal;
- and
- a gate driving apparatus including
- a gate-driving-circuit substrate including
- a gate control terminal, and a ground control terminal electrically connected to the power module gate control terminal and the power module ground control terminal, respectively, and
- a gate driver circuit for supplying driving signals to drive the power module, and
- an insulation cover covering portions of the gate-driving-circuit substrate other than the gate control terminal and the ground control terminal of the gate-driving-circuit substrate, the portions covered by the insulation cover including the gate driver circuit, the gate-driving-circuit substrate being clamped and fixed within the insulation cover.
Dependencies are inferred from the claim text.