Patent ID: 11936229
Assignee: TEXAS INSTRUMENTS INCORPORATED
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 10:
11. A system, comprising:
a connector having first and second connector pins;
a switch coupled between the first connector pin and a resistor coupled to ground;
a circuit having a circuit input and a circuit output, wherein the circuit input is coupled to the second connector pin, the circuit is configured to provide at the circuit output a true value responsive to a voltage on the second connector pin being equal to or greater than 0.8 to 2.0 Volts (V), and provide at the circuit output a false value otherwise; and
a control circuit having first and second control circuit inputs and first and second control circuit outputs, wherein the first control circuit input is coupled to the circuit output, the first control circuit output is configured to actuate the switch, and the control circuit is configured to make a charging port mode determination by:
receiving a data contact detect (DCD) Complete signal on the second control circuit input;
closing the switch to couple the first connector pin to ground through the resistor, responsive to receiving the DCD Complete signal;
determining a value of a condition, the condition having a true value if the circuit output is a true value, and the condition having a false value otherwise;
opening the switch;
sending a first signal on the second control circuit output, wherein the first signal is configured to indicate that the system is coupled to a dedicated charging port (DCP) of Divider 0 mode in response to determining that the condition is true; and
sending a second signal on the second control circuit output, wherein the second signal is configured to indicate that the system is coupled to a DCP of Divider 1.2V short mode in response to determining that the condition is false.