Power tab

HubTool USBHub3c Power tab

The power tab shows the allocation and actual flow of power through the hub.

System allocated power panel

Across the top of this panel are the allocated currents of each port. Positive currents represent that the port is a power source, negative currents are for sinks.

System allocated power panel

Below the row of ports is a visualization of the stackup of allocated currents.

Total allocated power - sum of the allocated source power

Power limit - maximum power that can be allocated across all ports. Determined by input power minus nominal losses, e.g. 90 W for 100 W supply

Total power usage - sum of actual power being sourced

Power limit max - set power limit for DC input when unregulated power is provided to the DC port

Input power source - input port with the highest power capability

Port power panel

Port power panel

Current power - actual port power output (positive) or input (negative)

Available power - maximum power that could be allocated to the port, not to exceed Power limit

VBus accum power - total energy sunk or sourced on VBus since reset

Allocated power - power allocated to the port, not to exceed Power limit

Power limit - power limit for the port, max 105 W

VConn accum power - total energy sunk or sourced on VConn since reset