US 12,348,143 B2
Remote current sense compensation in multiphase voltage regulators
Robert Thomas Grisamore, Austin, TX (US); David Lynn Beck, Austin, TX (US); Kiran Gonsalves, Austin, TX (US); and Nicholas John Havens, Austin, TX (US)
Assigned to Renesas Electronics America Inc., Milpitas, CA (US)
Filed by Renesas Electronics America Inc., Milpitas, CA (US)
Filed on Dec. 31, 2021, as Appl. No. 17/567,080.
Prior Publication US 2023/0216411 A1, Jul. 6, 2023
Int. Cl. H02M 3/158 (2006.01); G06F 1/12 (2006.01); G06F 1/3296 (2019.01)
CPC H02M 3/1584 (2013.01) [G06F 1/12 (2013.01); G06F 1/3296 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An apparatus comprising:
a communication interface; and
a controller connected to a plurality of power stages through the communication interface, the controller being configured to:
send a data packet to digital interfaces of the plurality of power stages using the communication interface, wherein the data packet comprises at least one multi-bit sequence encoding:
a command to obtain temperature information; and
an address that identifies a specific power stage among the plurality of power stages;
receive, at a temperature sensing pin of the controller, temperature information of the specific power stage from a temperature monitor pin of the specific power stage; and
compensate a sensed current of the specific power stage based on the temperature information received from the specific power stage and based on at least one temperature characteristic of the specific power stage.