US 12,143,019 B2
Monitoring temperature per phase in a multiphase power stage
Margaret Spillane, Limerick (IE); Kevin Kelliher, Coolflugh (IE); Owen Cregg, Clarinbridge (IE); and Paul J. Harriman, Belfair, WA (US)
Assigned to SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC, Scottsdale, AZ (US)
Filed by SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC, Phoenix, AZ (US)
Filed on Jul. 29, 2022, as Appl. No. 17/815,984.
Prior Publication US 2024/0039410 A1, Feb. 1, 2024
Int. Cl. H02M 3/158 (2006.01); H02M 1/32 (2007.01)
CPC H02M 3/1584 (2013.01) [H02M 1/327 (2021.05)] 22 Claims
OG exemplary drawing
 
1. A multiphase power stage comprising:
a communication bus configured for serial communication of digital messages;
a temperature bus configured for transmission of analog signals;
a driver module coupled to the communication bus and coupled to the temperature bus; and
a controller coupled to the communication bus and coupled to the temperature bus, the controller configured by instructions to:
select an address assigned to the driver module from a list of addresses;
transmit a temperature request message addressed to the driver module to the communication bus;
receive a temperature signal from the temperature bus during a timeslot; the temperature signal transmitted to the temperature bus during the timeslot by the driver module in response to the temperature request message addressed to the driver module; and
obtain a phase temperature for the driver module based on the temperature signal and the timeslot during which the temperature signal was received.