POWER CONVERSION DEVICE AND AIR CONDITIONER EQUIPPED WITH SAME

Registre Brevet WIPO
Numéro d'application JP2018040619
Numéro de publication 2020/090068
Statut Délivré - en vigueur
Date de dépôt 2018-10-31
Date de publication 2020-05-07
Propriétaire HITACHI-JOHNSON CONTROLS AIR CONDITIONING, INC. (Japon)
Inventeur(s)
  • Tsukii Koji
  • Ogura Yoji
  • Hashimoto Hiroyuki
  • Kanbara Eiji

Abrégé

Provided are a power conversion device and the like having a simple configuration and a low loss. An inverter (100) is provided with: a switching element drive circuit (20) for outputting drive signals to switching elements (Qa, Qb); reverse voltage application circuits (30a, 30b) for applying reverse voltages to the parasitic diodes (Da, Db) or free-wheeling diodes of the switching elements (Qa, Qb); and multivibrators (40a, 40b) for generating reverse voltage application signals to the reverse voltage application circuits (30a, 30b) using the drive signals input thereto from the switching element drive circuit (20).

Classes IPC  ?

  • H02M 7/48 - Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode