Wall mountable touch panels are described. In one embodiment, a wall mountable touch panel for controlling a load device includes a touch sensor configured to receive a user touch input and to control the load device based on the user touch input and a power interface configured to receive a low-voltage direct current (DC) power signal for powering the touch sensor. Other embodiments are also described.

Wall mountable touch panels are described. In one embodiment, a wall mountable touch panel for controlling a load device includes a touch sensor configured to receive a user touch input and to control the load device based on the user touch input and a power interface configured to receive a low-voltage direct current (DC) power signal for powering the touch sensor. Other embodiments are also described.

A wireless power transmitting device may transmit power wirelessly to a wireless power receiving device. The wireless power receiving device may be a portable electronic device with an array of wireless power receiving coils that receive wireless power from wireless power transmitting coils in the wireless power transmitting device. Each receiving coil in the array of wireless power receiving coils may be coupled to a respective rectifier. Control circuitry of the wireless power receiving device may be configured to determine which rectifiers to enable for synchronous rectification. The control circuitry may be configured to enable at least one rectifier based on the alternating-current voltages produced by each coil in the array of receiving coils. The control circuitry may also be configured to enable at least one rectifier based on the output current from each rectifier.

Electrical devices, methods of operating an electrical device for use with a multiway switch system, and methods for connecting an electrical device with a load device and a multiway switch system for controlling the load device are described. In one embodiment, an electrical device for use with a multiway switch system includes an alternating current (AC) power interface configured to connect to at least one of a live wire and a neutral wire of an AC power supply, a load regulator module configured to regulate a load device that is connected to the neutral wire of the AC power supply, an output power interface configured to connect to the multiway switch system and to output a voltage to a switch of the multiway switch system, and a microcontroller module configured to control the load regulator module in response to a switching of the multiway switch system.

Electrical devices, methods of operating an electrical device for use with a multiway switch system, and methods for connecting an electrical device with a load device and a multiway switch system for controlling the load device are described. In one embodiment, an electrical device for use with a multiway switch system includes an alternating current (AC) power interface configured to connect to at least one of a live wire and a neutral wire of an AC power supply, a load regulator module configured to regulate a load device that is connected to the neutral wire of the AC power supply, an output power interface configured to connect to the multiway switch system and to output a voltage to a switch of the multiway switch system, and a microcontroller module configured to control the load regulator module in response to a switching of the multiway switch system.

Synchronized mechanical switches are configured to support electrical switching circuits operating at frequencies equal to or higher than the frequency of the primary AC power supply. Due to near perfect impedances of mechanical switches as well as accurate timing control mechanisms, the mechanical switching circuits provide timely electrical connections to the terminals of the primary AC power supply to generate proper waveforms suitable to power next stage electrical circuits without the need to use semiconductor devices.

Synchronized mechanical switches are configured to support electrical switching circuits operating at frequencies equal to or higher than the frequency of the primary AC power supply. Due to near perfect impedances of mechanical switches as well as accurate timing control mechanisms, the mechanical switching circuits provide timely electrical connections to the terminals of the primary AC power supply to generate proper waveforms suitable to power next stage electrical circuits without the need to use semiconductor devices.