USB Technology

  1. USB Power Delivery
    1. Standard USB Power
      1. USB 1.x and 2.0 Power (5V, 500mA)
        1. USB 3.x Power (5V, 900mA)
          1. Battery Charging Specification
            1. Dedicated Charging Ports
              1. Charging Downstream Ports
                1. Standard Downstream Ports
              2. USB Power Delivery (USB-PD) Protocol
                1. Power Negotiation Process
                  1. Power Data Objects (PDOs)
                    1. Power Rules and Profiles
                      1. Voltage and Current Levels
                        1. Standard Power Range (up to 100W)
                          1. Extended Power Range (up to 240W)
                        2. Communication Channel (CC) Pins
                          1. Role in Power Negotiation
                            1. Orientation Detection for Type-C
                              1. Cable Type Identification
                                1. Pull-up and Pull-down Resistors
                                2. Bi-Directional Power
                                  1. Host-to-Device Charging
                                    1. Device-to-Host Charging
                                      1. Power Role Swap
                                        1. Dual-Role Power
                                        2. Programmable Power Supply (PPS)
                                          1. Fine-Grained Voltage Control
                                            1. Current Adjustment
                                              1. Optimized Fast Charging
                                                1. Mobile Device Compatibility

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                                              4. Physical Connectors and Cables

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                                              6. USB Type-C Alternate Modes