Toshiba Carrier Corporation

Carrier Japan Corporation

Yohei Kubota

Masaki Kanamori

Kenta Yamamoto

Keiichi Ishida

Keiichi Kato

Takuro Arai

Motoki Nishio

According to one embodiment, a motor drive apparatus is an apparatus which drives a motor including a plurality of phase windings in a mutually unconnected state, and includes first and second inverters. The first and second inverters are first and second modules each of which is configured in such a manner that a switching circuit including a positive side terminal and negative side terminals and a drive circuit intended to drive the switching circuit are accommodated in one package, and which possess configurations identical to each other, and the first and second modules are arranged on a circuit board in a state where the negative side terminals of the modules are respectively close to each other.

Motor drive apparatus

According to one embodiment, the controller configured to, when an operation of the boosting circuit is in the boosting mode, and if an instantaneous value Ia of a current flowing through the reactor lowers to a value smaller than or equal to a set value Ias, switch the operation of the boosting circuit from the boosting mode to the non-boosting mode.

Power supply apparatus

Growing community of inventors

Fuji, Japan

Yohei Kubota