Module
AssigneeFuji Electric Co., Ltd.
InventorHideo AMI
Life of this patent
Estimating the term…
Abstract
An electric circuit in which a first switching element and a first diode element are connected in antiparallel to form an upper arm and a second semiconductor element and a second diode element are connected in antiparallel to form a lower arm, and the upper arm and the lower arm are connected in series. A gate current path in one of the upper and lower arms and a reverse recovery path in the other one of the upper and lower arms are disposed close enough and extend at least partially in parallel to each other, so as to generate mutual inductance by the reverse recovery current flowing through the reverse recovery path and the gate current flowing through the gate current path.
Claims20
An electric circuit, comprising:
- a first semiconductor element forming an upper arm;
- and
- a second semiconductor element forming a lower arm, wherein
- the upper arm and the lower arm are connected in series,
- the upper arm and the lower arm respectively include a reverse recovery current path through which a reverse recovery current flows and a gate current path through which a gate current flows, and
- the gate current path in one of the upper arm and the lower arm, and the reverse recovery path in the other one of the upper arm and the lower arm are disposed close enough and extend at least partially in parallel to each other, so as to generate mutual inductance by the reverse recovery current flowing through the reverse recovery path and the gate current flowing through the gate current path.
A semiconductor module, comprising:
- an upper arm including
- a first semiconductor element, and
- a first control wiring member through which a first gate current flows, and
- a first main current wiring member through which a first reverse recovery current flows;
- a lower arm including
- a second semiconductor element,
- a second control wiring member through which a second gate current flows, and
- a second main current wiring member through which a second reverse recovery current flows, wherein
- the upper arm and the lower arm are connected in series, and
- the first control wiring member and the second main current wiring member and/or the second control wiring member and the first main current wiring member are disposed close enough and extend at least partially in parallel to each other, so as to generate mutual inductance by the first gate current and the second reverse recovery current and/or by the second gate current and the first reverse recovery current.
Dependencies are inferred from the claim text.