US 12,420,908 B2
Inverter circuits and electrical propulsion systems for EVTOL aircraft
Alan Tepe, San Jose, CA (US); Stephen Spiteri, San Jose, CA (US); Wei Wu, San Jose, CA (US); and Diederik Marius, San Jose, CA (US)
Assigned to Archer Aviation Inc., San Jose, CA (US)
Filed by Archer Aviation Inc., San Jose, CA (US)
Filed on May 14, 2024, as Appl. No. 18/664,029.
Application 18/664,029 is a continuation of application No. 18/363,535, filed on Aug. 1, 2023, granted, now 12,068,707.
Claims priority of provisional application 63/378,680, filed on Oct. 7, 2022.
Claims priority of provisional application 63/378,536, filed on Oct. 6, 2022.
Prior Publication US 2025/0153853 A1, May 15, 2025
Int. Cl. B64D 27/24 (2024.01); B60L 15/06 (2006.01); B60L 15/38 (2006.01); B64C 27/54 (2006.01); B64C 29/00 (2006.01); B64D 27/30 (2024.01); B64D 33/08 (2006.01); B64D 35/02 (2024.01); F16B 2/06 (2006.01); F16H 57/08 (2006.01); H02K 1/27 (2022.01); H02K 1/32 (2006.01); H02K 5/124 (2006.01); H02K 5/20 (2006.01); H02K 7/08 (2006.01); H02K 7/116 (2006.01); H02K 9/19 (2006.01); H02K 11/33 (2016.01); H02K 15/03 (2025.01); H02M 7/5395 (2006.01); H02P 21/00 (2016.01); H02P 25/16 (2006.01); H02P 27/06 (2006.01); H02P 27/08 (2006.01); H02K 7/00 (2006.01)
CPC B64D 27/24 (2013.01) [B60L 15/06 (2013.01); B60L 15/38 (2013.01); B64C 27/54 (2013.01); B64C 29/0008 (2013.01); B64C 29/0033 (2013.01); B64D 27/30 (2024.01); B64D 33/08 (2013.01); B64D 35/02 (2013.01); F16B 2/06 (2013.01); F16H 57/08 (2013.01); H02K 1/27 (2013.01); H02K 1/32 (2013.01); H02K 5/124 (2013.01); H02K 5/203 (2021.01); H02K 7/08 (2013.01); H02K 7/116 (2013.01); H02K 9/19 (2013.01); H02K 11/33 (2016.01); H02K 15/03 (2013.01); H02M 7/5395 (2013.01); H02P 21/50 (2016.02); H02P 25/16 (2013.01); H02P 27/06 (2013.01); H02P 27/08 (2013.01); B60L 2200/10 (2013.01); B60L 2210/40 (2013.01); H02K 7/006 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A method for controlling an inverter circuit, comprising:
detecting whether a fault occurs on one of a plurality of switches in the inverter circuit;
disconnecting the inverter circuit from a power source, in response to a detection of a single-phase short-circuit fault; and
discharging a bus voltage across a capacitor of the inverter circuit after the inverter circuit is disconnected from the power source by:
using a first discharging circuit to provide a first discharging path, in response to a confirmation that the inverter circuit is disconnected from the power source; and
using a second discharging circuit to provide a second discharging path in parallel to the first discharging path, in response to the bus voltage being lower than a threshold value.