US 12,470,123 B2
Control apparatus for inverter
Yusuke Sugihara, Kariya (JP)
Assigned to DENSO CORPORATION, Kariya (JP)
Filed by DENSO CORPORATION, Kariya (JP)
Filed on Sep. 13, 2023, as Appl. No. 18/367,507.
Application 18/367,507 is a continuation of application No. PCT/JP2022/008838, filed on Mar. 2, 2022.
Claims priority of application No. 2021-050701 (JP), filed on Mar. 24, 2021.
Prior Publication US 2023/0421045 A1, Dec. 28, 2023
Int. Cl. H02M 1/08 (2006.01); H02M 7/48 (2007.01)
CPC H02M 1/08 (2013.01) [H02M 7/48 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A control apparatus applicable to a system in which an inverter including a pair of an upper-arm switch and a lower-arm switch and a power storage unit installed in a low-voltage region are provided, the control apparatus comprising:
a control signal generator provided in the low-voltage region and configured to:
generate a control signal for switching control of each of the upper- and lower-arm switches; and
output the control signal;
a transfer unit installed in both the low-voltage region and a high-voltage region while straddling a boundary between the low- and high-voltage regions, and configured to transfer the control signal outputted from the control signal generator to the high-voltage region, the high-voltage region being electrically isolated from the low-voltage region; and
a controller installed in the high-voltage region and configured to perform, based on the control signal, switching control of each of the upper- and lower-arm switches, wherein
the control signal generator installed in the low-voltage region is further configured to:
generate a distinct signal that is distinct from the control signal as long as no power-supply anomaly from the power storage unit has occurred; and
output the distinct signal to the transfer unit, and
the controller is configured such that the distinct signal is inputtable thereto through the transfer unit, the controller being configured to determine whether the power-supply anomaly has occurred in accordance with information on the distinct signal.