Eaton Intelligent Power Limited

Cooper Technologies Company

Kevin Zhong

Tom Xiong

Saivaraprasad Murahari

Lily Du

Lin Yang

Ahmed El-Gayyar

Martin Chen

Alex Zhuang

Rohit Sumerchand Dodal

Sophia Zhang

Sumeet T Raghavani

Darron Kirby Lacey

Carlos Eduardo Restrepo

Haidong Harry Zhang

Chuanchuan Zhuang

Hoon Lee

Grayling Love

Bob Zhu

Oscar Lewis Neundorfer

Andrew Yang

Xianzhen Zhang

Huafei Huang

Abdulkabir O Dansalami

A dimmer switch system for dimming a load includes a master dimmer structured to be electrically connected to a power source and the load and to control dimming of the load by regulating power provided from the power source to the load, and at least one accessory dimmer structured to be electrically connected to the master dimmer via a traveler conductor. The master dimmer is structured to generate a first control signal on the traveler conductor to indicate a type of the master dimmer, and the at least one accessory dimmer is structured to selectively enable or disable one or more functions of the at least one accessory dimmer based on the type of the master dimmer.

Auto detection of type of device using single wire two-way communication

Electrical devices with lights having onboard secondary power supplies are configured with synchronizable zone-based operation and/or color selectable modes. The electrical devices can be power receptacles and can be connected to a line input of a power circuit of a power grid and can also have the onboard secondary (emergency power) power supplies. The devices are configured so that respective lights can automatically illuminate upon motion detection in a zone and/or upon a disruption to the power circuit or to a powered state of a particular electrical device. The devices can be configured to allow a user to select different color or color temperatures using a color selection circuit.

Electrical devices with lights and associated zone-synchronizable lighting systems with back-up power and related methods

A dimmer includes a power supply circuit including a current limiter and a switch, the power supply circuit electrically coupled to a power source and a load, where current is channeled via the current limiter during a power-on of the dimmer and via the switch during operation of the dimmer after the power-on, a triode for alternating current (TRIAC) control circuit electrically coupled to the power source and the load, where the TRIAC control circuit is structured to control operation of a TRIAC configured to control an amount of power supplied to the load; and a processing unit electrically coupled to the power supply circuit and the TRIAC control circuit, where the processing unit is structured to control the switch and the TRIAC control circuit after the power-on.

Dimmer with a power supply circuit

An electric vehicle charging circuit breaker for charging an electric vehicle with power from a power source. The electric vehicle charging circuit breaker includes a circuit protection unit structured to provide circuit protection between the power source and the electric vehicle, an electric vehicle charging unit structured to control charging of the electric vehicle, a metering unit structured to meter power flowing between the power source and the electric vehicle, and a display unit structured to display information including at least one of metering information and a status of electric vehicle charging.

Electric vehicle charging circuit breaker

A dimmer structured to be connected to a power source via a hot conductor and to a load via a load conductor includes a zero-crossing detector structured to generate a zero-crossing signal that that has a high state or a low state and changes states in response to a voltage between the hot conductor and the load conductor reaching or leaving zero volts only during a positive half-cycle of power received from the power source, a processing unit structured to receive the zero-crossing signal and to generate a triac control signal based on the zero-crossing signal, and a triac control unit including a triac and being structured to electrically connect between the hot conductor and the neutral conductor and to turn on and turn off the triac based on the triac control signal.

Dimmer with zero crossing detector and method of controlling a dimmer

A dimmer switch system for dimming a load includes a master dimmer structured to be electrically connected to a power source and the load and to control dimming of the load by regulating power provided from the power source to the load, and at least one accessory dimmer structured to be electrically connected to the master dimmer via a traveler conductor. The master dimmer is structured to generate a first control signal on the traveler conductor during one of a positive or negative half-cycle of power from the power source. The at least one accessory dimmer is structured to generate a second control signal on the traveler conductor during the other of the positive or negative half-cycle of power from the power source.

Dimmer switch system with single wire two-way communication architecture

A dimmer system includes a master dimmer electrically connected between a power source and a load and structured to control dimming of the load. The master dimmer includes a power supply structured to generate first direct current power and second direct current power and a constant current circuit structured to fix a current level of the second direct current power. The dimmer system also includes a plurality of remote dimmers structured to receive and be powered by the second direct current power with the fixed current level.

Dimmer system and method of powering remote dimmers

An electrical circuit for electric vehicle supply equipment, the electrical circuit including a pilot control signal unit structured to generate a pilot control signal having a state including one of a high state and a low state, an isolation unit electrically connected to the pilot control signal unit and a first ground and being structured to isolate the pilot control signal to generate an isolated pilot control signal, and an amplification unit electrically connected to the isolation unit, having a second ground, and being structured to amplify the isolated pilot control signal to generate a pilot signal. The isolation unit is structured to isolate the second ground of the amplification unit from the first ground.

Pilot signal generating and isolation circuit and electric vehicle supply equipment including the same

A circuit interrupter including a first set of separable contacts, a second set of separable contacts, a first operating mechanism structured to open the first set of separable contacts, a second operating mechanism structured to open and close the second set of separable contacts, and an electronic trip unit including a routine structured to detect a fault condition and a type of the fault condition, to control the second operating mechanism to open the second set of separable contacts in response to detecting a first type of fault condition, and to control the second operating mechanism to close the second set of separable contacts a predetermined amount of time after controlling the second operating mechanism to open the second set of separable contacts.

Circuit interrupter with ground fault current transformer

A dimmer includes a processing unit structured to generate a dimming control signal, wherein in the on state the dimming control signal has a constant voltage with a low pulse a predetermined time after each zero-crossing in power flowing through the hot conductor and in the off state the dimming control signal has a constant voltage, a load control circuit structured to electrically connect between the hot conductor and the load conductor and to selectively electrically connect the hot conductor to the load conductor based on the dimming control signal, and a snubber control circuit including a snubber structured to electrically couple between the hot conductor and the load conductor, wherein the snubber control circuit is structured to activate the snubber when the dimming control signal has the on state and to deactivate the snubber when the dimming control signal has the off state.

Dimmer with snubber control circuit

A dimmer switch system electrically connected between a power source and a load includes a primary housing including a primary switch actuatable by a user, a processor structured to change a state of the dimmer switch based on actuation of either the primary switch or the secondary switch, and a secondary switch isolation circuit. The dimmer switch system also includes a secondary housing including a secondary switch actuatable by the user and being electrically connected to the power source. The secondary switch isolation circuit is electrically connected between the secondary switch and the processor, the secondary switch isolation circuit including an optocoupler and being structured to isolate the processor from the power source and to provide a signal to the processor based on a state of the secondary switch.

Dimmer switch system with secondary switch

A dimmer switch system electrically connected between a power source and a load includes a primary housing including a primary switch actuatable by a user, a processor structured to change a state of the dimmer switch based on actuation of either the primary switch or the secondary switch, and a secondary switch isolation circuit. The dimmer switch system also includes a secondary housing including a secondary switch actuatable by the user and being electrically connected to the power source. The secondary switch isolation circuit is electrically connected between the secondary switch and the processor, the secondary switch isolation circuit including a transistor electrically coupled between the power source and the processor and being structured to provide impedance between the power source and the processor. The secondary switch isolation circuit is structured to provide a signal to the processor based on a state of the secondary switch.

Dimmer switch and dimmer switch system with secondary switch

A trip bar cam unit for a trip bar is provided. The trip bar cam unit includes a trip bar cam unit body, a cam lever, and a keyed protrusion. The trip bar cam unit body defines an axis of rotation. The cam lever extends generally radially from the trip bar cam unit body. The keyed protrusion corresponds to a trip bar axial bore.

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Shanghai, China

Kevin Zhong