Eaton Intelligent Power Limited

Eaton Corporation

Gayatri Vinod Pandit

Swapnil Suresh Sabde

Saivaraprasad Murahari

Hoon Lee

Vinay Mahantgauda Patil

Rahul Sakhare

Pramod Kumar

Oscar L Neundorfer

Oscar Lewis Neundorfer

Haidong Harry Zhang

Lili Lily Du

Navneet Ramkrushnaji Dhote

Nitin Rawal

Kun Kevin Zhong

Shifang Sophia Sophia Zhang

A dimmer includes a primary intensity actuator coupled to a primary intensity potentiometer, the primary intensity actuator structured to be actuated for at least one of: controlling an amount of power delivered to a load connected to the dimmer in normal operation mode, and adjusting light intensity based on a first user input in the normal operation mode; selecting a type of end trimming based on a second user input before entering configuration mode; or adjusting, based on a third user input, an end trim value; a configuration actuator arranged on a side of the dimmer and structured to be actuated for entering the configuration mode based on a fourth user input within a first predetermined period; and a controller coupled to the primary intensity potentiometer, the configuration actuator, and a driver circuit coupled to a bidirectional switching device, the controller structured to control dimmer operation.

Dimmers with an actuator for switching dimmer mode

A dimmer includes a sole intensity actuator structured to be used for at least one of: adjusting light intensity based on a first user input during normal operation; or entering configuration mode based on a second user input and adjusting an end trim value based on a third user input; a sole intensity potentiometer coupled to the sole intensity actuator and comprising a variable resistor, the sole intensity potentiometer structured to measure an input voltage based on variable resistance, and a controller coupled to the sole intensity potentiometer and a driver circuit coupled to a bidirectional switching device, the controller structured to control dimmer operation, comprising receiving an input voltage signal and transmitting a dimming signal to the driver circuit, the dimming signal based at least in part on the signal.

Dimmers having capabilities to adjust end trim values

Systems and methods are provided for measuring input voltage in an alternating current (AC) system is provided. The method includes measuring a half-cycle time of an AC signal by: detecting, using a zero crossing detector (ZCD), a first edge of the AC signal; in response to detecting the first edge, using a timer to determine a start time; detecting, using the microcontroller, a subsequent edge of the square wave output of ZCD signal; and, in response to detecting the subsequent edge, using the timer to determine a stop time and a length of time that lapsed from the start and stop times. The method further includes determining an overall value that corresponds to at least one length of time, determining, based on the overall value, an input voltage range that corresponds to the overall value, and using the input voltage to cause the AC system to take an action.

Input voltage sensing using zero crossing detection

Universal dimmers are provided including a mode selection circuit configured to receive an input related to a load associated with the universal dimmer. The mode selection circuit is configured to select between more than two modes of operation of the universal dimmer. Related methods of operation are also provided.

Universal dimmer with auto load detection and related methods of operation

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Pune, India

Gayatri Vinod Pandit