Google Inc.

Motorola Mobility LLC

Scientific-atlanta, Inc.

Wayne G Anderson

Daniel S Rokusek

Robert Michael Johnson, Jr

Daniel Harley Wagner

Michael G Hanley

Daniel C Nowak

Ron Hodge

Ernest L Hagen

Bobby D Denton

A power supply system is operable to contemporaneously supply power to multiple output ports when available power from a power source is insufficient to meet maximum potential power requirements of load devices coupled to the output ports. The power supply system includes a system monitor, multiple power converters, and optional temperature sensing circuits, where each power converter supplies power to a respective output port. The system monitor monitors an output power characteristic of the power source, output powers delivered to the output ports, and/or temperatures detected by the temperature sensing circuits. When the system monitor detects an overload condition is approaching based on the monitored parameter or parameters, the system monitor generates control signals which cause the power converters to maintain or reduce their output powers such that the overload condition is abated and two or more output ports continue to deliver output power to their respective load devices.

Power supply system with multiple output ports and associated methods for output port power management

A method and apparatus charge devices using a multiple port power supply. The apparatus can include a power supply. The apparatus can include a first device charging port coupled to the power supply. The first device charging port can receive power from the power supply and output power to a first device. The apparatus can include a second device charging port coupled to the power supply. The second device charging port can receive power from the power supply and output power to a second device. The apparatus can include a device charging port monitor coupled to the first device charging port and coupled to the second device charging port. The device charging port monitor can detect a number of device charging ports in use. The apparatus can include a cable compensator coupled to the device charging port monitor. The cable compensator can select a first cable compensation if one device charging port is in use and can select a second cable compensation if two device charging ports are in use.

Method and apparatus for charging devices using a multiple port power supply

An apparatus is provided for an electronic device. The apparatus includes a dynamic electrical load, a secondary power coil receiver module that inductively receives a current from a primary coil of an power conversion system, a means for monitoring a current in the secondary receiver module being delivered to the dynamic load, a means for transmitting a power control signal to the power conversion system through the secondary charging coil, a current monitoring circuit that measures a current delivered to the dynamic load and a current limiter circuit that limits the current to the dynamic load based upon the measured charging current.

Dynamic current limiting charging circuit

A regulated power supply for application in a cable signal distribution amplifier comprises a filter, voltage doubler and current sense transformer controlled by a control technique known in the art. In the event of a high impedance short condition causing severe overcurrents, the known control technique is ineffective. To alleviate the problem, a high impedance current fault control circuit includes a sampling circuit, a level adjusting circuit, a differential amplifier for providing a monitor output control voltage and a buffer circuit to the controller. In the event of a high impedance current fault, the control circuit kicks in and interrupts controller operation saving power supply components from damage caused by the overcurrent condition.

Regulated current power supply with isolated secondary and output

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Wayne G Anderson