US 12,255,484 B2
USB battery charging mode advertising and differentiation
Suzanne Mary Vining, Plano, TX (US)
Assigned to TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US)
Filed by TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US)
Filed on Feb. 1, 2024, as Appl. No. 18/429,523.
Application 18/429,523 is a continuation of application No. 17/485,001, filed on Sep. 24, 2021, granted, now 11,936,229.
Claims priority of provisional application 63/083,119, filed on Sep. 25, 2020.
Claims priority of provisional application 63/083,454, filed on Sep. 25, 2020.
Prior Publication US 2024/0170989 A1, May 23, 2024
Int. Cl. H01M 10/44 (2006.01); G01R 19/10 (2006.01); H01M 10/46 (2006.01); H02J 7/00 (2006.01)
CPC H02J 7/00712 (2020.01) [G01R 19/10 (2013.01); H02J 7/0042 (2013.01); H02J 7/0047 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A method, comprising:
determining a charging port mode by:
receiving a first signal;
reducing a voltage at a first terminal of a Universal Serial Bus (USB) connector of a portable device (PD) from a first voltage to a second voltage in response to receiving the first signal, wherein the second voltage is lower than the first voltage;
determining that a condition is true responsive to a third voltage at a second terminal of the USB connector being between a first threshold voltage and a second threshold voltage, and is false otherwise; and
sending a second signal on a control circuit output of a control circuit of the PD in response to determining that the condition is true, or sending a third signal on the control circuit output in response to determining that the condition is false, wherein the second signal indicates that the PD is connected to a dedicated charging port (DCP) of Divider 0 mode, and the third signal indicates that the PD is connected to a DCP of 1.2V short mode.