Astronics Advanced Electronic Systems Corp.

Crane Electronics, Inc.

Microsoft Technology Licensing, LLC

David Perchlik

Jay Allen Kuehny

Reid Adriance

Cuon Lam

Dennis P Markert

Pey-Hua Hwang

Aaron Clarke

Monty Ross

Christopher Dziubek

Disclosed is a system for aiding in determining when a power-providing outlet is ending its usable service life and is due for service or replacement. A connection detection unit and counting unit respectively monitor connection of a device to a port and maintain a connection count of connection events. For USB type C connections a cable or device resistance detection circuit can be used to determine if a USB type C device or cable has been connected. USB Type A and AC connections can be detected by mechanical or electrical mechanisms. When a connection has been detected a counter can be incremented or decremented to record a connection. A limit value can be set and compared to the connection count and a sensory or electronic indication can be made when the limit value is exceeded.

Insertion counter for USB outlets

A system to regulate the temperature of a Source Port that includes a Port Controller having a first source power capabilities list stored thereon in a non-transitory digital media, the source capabilities list identifying a plurality of first power delivery capabilities that, based on their power requirements, may be negotiated by the Port Controller, a temperature sensor that measures a temperature of the power system and communicates that measured temperature to a comparator. The comparator compares the measured temperature to predefined limit temperatures and when the measured temperature crosses a predefined limit temperature threshold, the first source capabilities list being replaced with a second source capabilities list identifying a plurality of second power capabilities that, based on their power requirements, may be connected to the Source Port.

Control of temperature in a USB type C source through re-negotiation of power delivery object

Technologies are described for an adaptable power supply that can switch between two or more output voltages. The power supply includes discharge circuitry that utilizes the secondary windings of a transformer as a discharge path when the power supply switches from a high voltage level to a low voltage level. In some embodiments, the discharge circuitry is included within a synchronous rectifier. In other embodiments, the discharge circuitry is separate from the synchronous rectifier. In still other embodiments, the power supply does not include a synchronous rectifier. Whichever embodiment is used, an output capacitor can be discharged through the secondary windings of a transformer and the transformer can store that energy for future use.

Voltage discharge circuit

Interface circuits are disclosed for manually or automatically selecting among two or more communications protocols in ways that reduce the number of connector pins needed and/or use the same number of connector pins required for a single communications protocol. Such interface circuits are advantageously applicable to selecting and accommodating either RS-485 or 802bw communications protocols in aircraft electronics while enabling space and cost efficient designs.

Interfaces for selecting among multiple communications protocols

A dual compensation operational amplifier is suitable for use in an environment that experiences fluctuations in ambient energy levels. A dual compensation impedance can be determined to nullify or compensate for effects of an input offset voltage or an input bias current or both. Adjustments to the dual compensation impedance can be made based on calibration data for various environmental conditions so that the dual compensation impedance can be either pre-set for anticipated conditions in different target operational environments, or automatically adjusted in-situ. Target operational environments that may benefit from such a dual compensation impedance include remote areas that experience extreme or variable temperatures, high altitudes, space, or high radiation environments.

Impedance compensation for operational amplifiers used in variable environments

A transformer may include a first and a second continuous single piece multi-turn helical winding, one concentrically received by the other. The turns of the windings are electrically insulated from one another and spaced sufficiently close together to permit inductive coupling therebetween. The turns may be formed of a conductor having a rectangular cross-section, which may, or may not, include an electrically insulative sheath. The single piece multi-turn helical windings may have a continuous or smooth radius of curvature, with no discontinuities or singularities between first and second end terminals. The transformer may be formed by wrapping electrical conductor about a winding form. The transformer may be used in various electrical circuits, for example converter circuits.

Growing community of inventors

Redmond, WA, United States of America

David Perchlik