A switching AC/DC power supply system with a 10 MHz time base includes a master and at least one slave, each of which has a time base generator, and the time base generators can provide a time base of 10 MHz. Wherein the slave has a selector switch, and when the master is coupled to the slave, the slave can obtain the time base from the time base generator of the master through the selector switch, thereby enabling the time base of the slave is fully synchronized with the master and improving the power output quality of the switching AC/DC power supply system.

A load control system for controlling the amount of power delivered from an AC power source to a plurality of electrical load includes a plurality of independent units responsive to a broadcast controller. Each independent unit includes at least one commander and at least one energy controller for controlling at least one of the electrical loads in response to a control signal received from the commander. The independent units are configured and operate independent of each other. The broadcast controller transmits wireless signals to the energy controllers of the independent units. The energy controllers do not respond to control signals received from the commanders of other independent units, but the energy controllers of both independent units respond to the wireless signals transmitted by broadcast controller. The energy controller may operate in different operating modes in response to the wireless signals transmitted by the broadcast controller.

A load control system for controlling the amount of power delivered from an AC power source to a plurality of electrical load includes a plurality of independent units responsive to a broadcast controller. Each independent unit includes at least one commander and at least one energy controller for controlling at least one of the electrical loads in response to a control signal received from the commander. The independent units are configured and operate independent of each other. The broadcast controller transmits wireless signals to the energy controllers of the independent units. The energy controllers do not respond to control signals received from the commanders of other independent units, but the energy controllers of both independent units respond to the wireless signals transmitted by broadcast controller. The energy controller may operate in different operating modes in response to the wireless signals transmitted by the broadcast controller.

An electrical power distribution assembly for an airplane, the assembly including an electric switch device for placing in a Karman fairing of the airplane.

An electrical power distribution assembly for an airplane, the assembly including an electric switch device for placing in a Karman fairing of the airplane.

A power transmitting apparatus including a power supply to generate AC power; a power transmitting inductor to transfer the AC power to a power receiving apparatus through magnetic coupling with a power receiving inductor in the power receiving apparatus; a mutual coupling adjusting unit to adjust a relative position between the power transmitting inductor and the power receiving inductor; and a control unit to control the mutual coupling adjusting unit based on a mutual coupling coefficient between the power transmitting inductor and the power receiving inductor. The control unit controls the mutual coupling adjusting unit so that the mutual coupling coefficient falls within a predetermined range and an upper limit of the predetermined range is a value less than a maximum of the mutual coupling coefficient between the power transmitting inductor and the power receiving inductor.

A power transmitting apparatus including a power supply to generate AC power; a power transmitting inductor to transfer the AC power to a power receiving apparatus through magnetic coupling with a power receiving inductor in the power receiving apparatus; a mutual coupling adjusting unit to adjust a relative position between the power transmitting inductor and the power receiving inductor; and a control unit to control the mutual coupling adjusting unit based on a mutual coupling coefficient between the power transmitting inductor and the power receiving inductor. The control unit controls the mutual coupling adjusting unit so that the mutual coupling coefficient falls within a predetermined range and an upper limit of the predetermined range is a value less than a maximum of the mutual coupling coefficient between the power transmitting inductor and the power receiving inductor.

A power and data distribution module includes a plurality of first power supply interfaces, configured to be connected to a plurality of power supply lines, a data bus interface configured to be connected to a data bus, a plurality of power output interfaces, configured to be connected to an electrical load and to supply electrical power from a first power supply interfaces to the connected electrical loads, a plurality of voltage distribution modules coupled between the first power supply interfaces and the power output interfaces and configured to provide AC or DC voltage via the power output interfaces, a load shedding module configured to receive load shedding information via data communication over one or more power supply lines, and a data concentrator configured to receive redundant load shedding information via data communication over the data bus and to transmit the redundant load shedding information to the load shedding module.

A power and data distribution module includes a plurality of first power supply interfaces, configured to be connected to a plurality of power supply lines, a data bus interface configured to be connected to a data bus, a plurality of power output interfaces, configured to be connected to an electrical load and to supply electrical power from a first power supply interfaces to the connected electrical loads, a plurality of voltage distribution modules coupled between the first power supply interfaces and the power output interfaces and configured to provide AC or DC voltage via the power output interfaces, a load shedding module configured to receive load shedding information via data communication over one or more power supply lines, and a data concentrator configured to receive redundant load shedding information via data communication over the data bus and to transmit the redundant load shedding information to the load shedding module.

A system and method for high speed switching comprises receiving voltage inputs at a bridge rectifier, generating a control signal from a transistor, and driving a gate of a field effect transistor (FET) via the control signal of the transistor, wherein a source of the FET is connected to a negative output of the bridge rectifier and a drain of the FET is connected to a positive output of the bridge rectifier through a load. The system and method further comprises limiting current flowing to the gate of the FET through first and second resistors and first and second diodes connecting the voltage inputs to the gate of the FET and limiting voltage to the gate of the FET below a maximum voltage rating of the FET by a Zener diode connected to the gate of the FET.