HP Z1 Informações Técnicas descarregar pdf (Página 22)

Technical white paper | HP Z1 G2 Workstation

Battery charging technology

The USB Battery Charging Specication v1.2 (USB BC 1.2*) denes a special USB

port that will allow some devices to charge (tablets) and other devices to charge

faster (cell phones). This USB port is called a Charging port and supports at

least 1.5A of charging current under normal operation, sleep, hibernate, and

shutdown modes. The USB charging port can be identied by the lightning bolt

icon shown below.

Charging Port icons

For USB 2.0 Battery Charging Ports

For USB 3.0 Battery Charging Ports

Charging modes

A USB Port that supports Battery Charging can be placed in to one of three modes:

• Standard Downstream Port (SDP)

SDP allows the USB port to work as a traditional USB port that supplies 500 mA (USB 2.0) or 900 mA (USB 3.0).

USB communication is supported in this mode. This mode will allow some devices to charge slowly.

• Charging Downstream Port (CDP)

CDP allows the USB port to follow the USB BC 1.2 Specication. This allows the USB port to supply up to 1.5A

for charging and provides USB communication simultaneously in this mode.

• Dedicated Charging Port (DCP)

DCP allows the USB port to follow the USB BC 1.2 Specication and provides up to 1.5A. Dedicated Charging

Port does not support USB communication.

Modes setup

Table 4.

†The portable device will communicate with the on-board charger automatically for mode setup. If the portable device doesn’t accept or support CDP

mode then the charger will go into general SDP mode. Some tablets might show no charge under this condition.

Operating mode Charging Mode Maximum Current Data Communication

Normal Operation SDP/CDP

†

0.5 A or 0.9 A / 1.5 A Yes

Sleep DCP 1.5 A No

Hibernate DCP 1.5 A No

Shutdown DCP 1.5 A No

HP recommends Windows.

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