Ubicquia, Inc.

Yevgeny Frenkel

Bradford Brian Hutson

Ian B Aaron

Ronald B Zimmerman, Iii

Jeffrey T Root

Tyler Edison Cone

A distribution transformer monitor includes a housing arranged for positioning in proximity to a distribution transformer vessel. The monitor also includes a sensor arranged in the housing, which is positioned to generate digital data associated with at least one environmental condition that exists inside the distribution transformer vessel, and a processing circuit arranged to determine from the generated digital data that the at least one environmental condition has crossed a threshold. The sensor may include any one or more of a temperature sensor, a camera, an accelerometer, a pressure sensor, and a microphone. The housing of the distribution transformer monitor may include at least one indicator legend arranged to facilitate positioning of the housing in a substantially vertical orientation relative to the distribution transformer vessel.

Transformer monitor

A small cell networking device mountable to a streetlight fixture includes circuitry for converting alternating current power into direct current (DC) power and providing a digitally stable ground for operation of the small cell device. The circuitry includes a transformer isolating a primary side from a secondary side of the circuitry. A switching controller on the primary side directs a switching circuit to selectively permit current flow through a primary side of the transformer to a first ground node on the primary side. A secondary winding of the transformer sources a rectified DC output relative to a second ground node that is isolated from the first ground node. In some cases, compensation on the secondary winding side provides isolated feedback to the controller, such as via an optical isolator. The controller directs the switching circuit based at least on the feedback and input from an auxiliary winding of the transformer.

Circuitry for providing digitally stable ground

An apparatus attachable to a luminaire includes circuitry for converting alternating current power into direct current (DC) power and providing a digitally stable ground for operation of a processor-based device. The circuitry includes a transformer isolating a primary side from a secondary side of the circuitry. A switching controller (e.g., a pulse width modulation controller) on the primary side directs a switching circuit to selectively permit current flow through a primary side of the transformer to a first ground node. A secondary winding of the transformer sources a rectified DC output relative to a second ground node that is isolated from the first ground node. In some cases, compensation on the secondary winding side provides isolated feedback to the controller, such as via an optical isolator. The controller directs the switching circuit based at least partially on the feedback and input from an auxiliary winding of the transformer.

A distribution transformer monitor includes a housing arranged for positioning in proximity to a distribution transformer vessel. The monitor also includes a sensor arranged in the housing, which is positioned to generate digital data associated with at least one environmental condition that exists inside the distribution transformer vessel, and a processing circuit arranged to determine from the generated digital data that the at least one environmental condition has crossed a threshold. The sensor may include any one or more of a temperature sensor, a camera, an accelerometer, a pressure sensor, and a microphone.

Distribution transformer monitor

A circuit is provided for converting alternating current power into direct current (DC) power and providing a digitally stable ground for operation of a processor-based device. Embodiments of the circuit include a transformer isolating (e.g., via galvanic isolation) a primary side from a secondary side of the circuit. A controller (e.g., a pulse width modulation (PWM) controller) on the primary side directs a switching circuit to selectively permit current flow through a primary side of the transformer to a first ground node on the primary side. A secondary winding of the transformer sources a rectified DC output relative to a second ground node that is isolated from the first ground node. In some cases, compensation on the secondary winding side provides isolated feedback to the controller via an optical isolator or some other circuit. The controller directs the switching circuit based at least in part on the error correction feedback and input from an auxiliary winding of the transformer.

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Fort Lauderdale, FL, United States of America

Yevgeny Frenkel