The present disclosure provides exemplary embodiments of voltage harvesting devices used in power distribution systems, and provides power distribution system architectures utilizing the voltage harvesting devices. Generally, the voltage harvesting devices transform distribution line AC voltages to produce a low wattage output for distribution system communication and control type devices. The voltage harvesting device can operate whether irrespective of the presence of load current.

The present disclosure provides exemplary embodiments of voltage harvesting devices used in power distribution systems, and provides power distribution system architectures utilizing the voltage harvesting devices. Generally, the voltage harvesting devices transform distribution line AC voltages to produce a low wattage output for distribution system communication and control type devices. The voltage harvesting device can operate whether irrespective of the presence of load current.

An electronic system sharing power of a doorbell includes a switch circuit and an electronic device. The first and second connection terminals of the switch circuit are respectively coupled to two doorbell contacts. The second and third connection terminals of the switch circuit are respectively coupled to two ends of a doorbell. Two power terminals of the electronic device are respectively coupled to two switch contacts. A function circuit of the electronic device is coupled between the two power terminals. In a normal mode, the first connection terminal is conducted to the second connection terminal inside the switch circuit, and the two power terminals are disconnected from each other by a doorbell actuating unit of the electronic device. In a ringing mode, the doorbell actuating unit short-circuits the two power terminals, and the first connection terminal is conducted to the third connection terminal inside the switch circuit.

An electronic system sharing power of a doorbell includes a switch circuit and an electronic device. The first and second connection terminals of the switch circuit are respectively coupled to two doorbell contacts. The second and third connection terminals of the switch circuit are respectively coupled to two ends of a doorbell. Two power terminals of the electronic device are respectively coupled to two switch contacts. A function circuit of the electronic device is coupled between the two power terminals. In a normal mode, the first connection terminal is conducted to the second connection terminal inside the switch circuit, and the two power terminals are disconnected from each other by a doorbell actuating unit of the electronic device. In a ringing mode, the doorbell actuating unit short-circuits the two power terminals, and the first connection terminal is conducted to the third connection terminal inside the switch circuit.

An electronic system sharing power of doorbell includes a switch circuit and an electronic device. The first and second connection terminals of the switch circuit are respectively coupled to two doorbell contacts. The second and third connection terminals of the switch circuit are respectively coupled to two ends of a doorbell. Two power terminals of the electronic device are respectively coupled to two switch contacts. A function circuit of the electronic device is coupled between the two power terminals. In a normal mode, the first connection terminal is conducted to the second connection terminal inside the switch circuit, and the two power terminals are disconnected to each other by a doorbell actuating unit of the electronic device. In a ringing mode, the doorbell actuating unit short-circuits the two power terminals, and the first connection terminal is conducted to the third connection terminal inside the switch circuit.

An electronic system sharing power of doorbell includes a switch circuit and an electronic device. The first and second connection terminals of the switch circuit are respectively coupled to two doorbell contacts. The second and third connection terminals of the switch circuit are respectively coupled to two ends of a doorbell. Two power terminals of the electronic device are respectively coupled to two switch contacts. A function circuit of the electronic device is coupled between the two power terminals. In a normal mode, the first connection terminal is conducted to the second connection terminal inside the switch circuit, and the two power terminals are disconnected to each other by a doorbell actuating unit of the electronic device. In a ringing mode, the doorbell actuating unit short-circuits the two power terminals, and the first connection terminal is conducted to the third connection terminal inside the switch circuit.

The present disclosure relates to a voltage regulation circuit (100). The voltage regulation circuit (100) comprises a transformer (130) having a primary winding (132) having a first end (132A) and a second end (132B), and a first secondary winding (134) having a first end (134A) and a second end (134B), wherein the first end (132A) of the primary winding (132) is configured to receive an input voltage and the second end (132B) of the primary winding (132) is configured to produce an output voltage, wherein the first end (134A) of the first secondary winding (134) is connected to a neutral node (180), wherein the primary winding (132) produces a primary voltage based on the input voltage, and wherein a secondary voltage of the first secondary winding (134) is out-of-phase to the primary voltage of the primary winding (132); and a first switch (160) configured to connect the second end (134B) of the first secondary winding (134) with the second end (132B) of the primary winding (132), wherein, when the first switch (160) is connected, the output voltage is the secondary voltage.

Aspects of the invention overcome a monolithic approach to conventional low-frequency LPTs by using a high-frequency solid-state alternating current ac/ac modular power-conversion approach. Embodiments of the invention enable the ability to incorporate new technologies without in all cases redoing a LPT design from scratch. Furthermore, given that LPTs are for the long term, aspects of the invention ensure that they are durable, efficient, and fault tolerant with overloading capability.

An improved electrical power conversion system converts a high voltage (HV) from a HV electrical power supply to a low voltage. The electrical power conversion system includes at least one power converter and at least one RC network connected in series. The RC network includes a plurality of resistive components and a plurality of capacitive components electrically connected in series. The at least one RC network and at least one power converter are arranged to be connected across a line potential of the HV electrical power supply.

A communication network includes a first electrical cable, a home network translation device, and a first termination device. The home network translation device is communicatively coupled between an optical cable and the first electrical cable, and the home network translation device is configured to translate data between an optical protocol on the optical cable and a home networking protocol on the first electrical cable. The first termination device is communicatively coupled to the first electrical cable and is configured to translate data between the home networking protocol on the first electrical cable and an additional protocol on an additional communication medium communicatively coupled to the first termination device.