US 12,395,169 B2
Semiconductor device, semiconductor module, relay unit, battery unit, and vehicle
Mineo Miura, Kyoto (JP); Masashi Hayashiguchi, Kyoto (JP); and Jun Terada, Kyoto (JP)
Assigned to ROHM CO., LTD., Kyoto (JP)
Filed by ROHM CO., LTD., Kyoto (JP)
Filed on Jun. 27, 2023, as Appl. No. 18/342,599.
Application 18/342,599 is a continuation of application No. 17/288,833, granted, now 11,784,639, previously published as PCT/JP2019/042651, filed on Oct. 30, 2019.
Claims priority of application No. 2018-207433 (JP), filed on Nov. 2, 2018.
Prior Publication US 2023/0344427 A1, Oct. 26, 2023
Int. Cl. H03K 17/567 (2006.01); B60L 3/00 (2019.01); B60L 15/00 (2006.01); B60L 50/60 (2019.01); H01H 47/00 (2006.01); H01L 25/07 (2006.01); H02P 27/06 (2006.01); H10D 8/00 (2025.01); H10D 12/00 (2025.01); H10D 84/40 (2025.01)
CPC H03K 17/567 (2013.01) [B60L 3/0046 (2013.01); B60L 15/007 (2013.01); B60L 50/60 (2019.02); H01H 47/00 (2013.01); H01L 25/072 (2013.01); H02P 27/06 (2013.01); H10D 8/00 (2025.01); H10D 12/481 (2025.01); H10D 84/403 (2025.01)] 13 Claims
OG exemplary drawing
 
1. A semiconductor device, comprising:
a first switching element including a first terminal, a second terminal, and a control terminal for controlling a switching operation between the first terminal and the second terminal; and
a second switching element connected in parallel between the first terminal and the second terminal of the first switching element, wherein
a voltage applied to the control terminal is less than a voltage applied to the control terminal when the first switching element is fully activated and is applied to the control terminal so that a voltage between the first terminal and the second terminal changes in a stepped manner as time elapses,
the first terminal is connected to a battery,
the second terminal is connected to an inverter circuit, and
the first switching element is intermittently operated to execute pre-charge control so that a capacitor arranged between the battery and the inverter circuit is charged gradually.