Abstract: A corner bumper is adapted to be mounted to a corner of a substantially hard-sided carryable case, transport container, or the like, to act as a shock absorber for protecting the case and its contents from exterior impact. The bumper comprises intersecting wall portions to substantially cover the adjacent planes of a corner. The bumper includes feet elements to act as a base upon which the case can stand and space the base a distance from the underlying support surface.
Abstract: A desaturation detector receives signals from a gate driver and circuitry that indicate whether a power semiconductor device is on and in desaturation. A logic circuit produces a signal as a function of the signals, from which a latch circuit produces an output signal. The signal has first and second values respectively in an as-designed condition, and in a short-circuit condition in which the power semiconductor device is on and in desaturation. The output signal has the first value, and transitioned and latched to the second value in response to a transition to the short-circuit condition, which causes the gate driver to switch the power semiconductor device off. And filter(s) reduce noise within the desaturation detector.
Type:
Grant
Filed:
June 8, 2018
Date of Patent:
January 26, 2021
Assignee:
Nexus Technologies, Inc.
Inventors:
John H. Blakely, Daniel J. Conti, Edward C. Prather, Norman P. Davies, Brian C. Langford, Ronald D. Hreha, Belvin S. Freeman
Abstract: A method is provided for power limiting in a power inverter configured to produce an output voltage and having a voltage regulator with a voltage setpoint defined for no load on an external bus line. The method includes determining a power level related to a load on the external bus line, determining an adjusted voltage setpoint based on the power level, including: decreasing the voltage setpoint to the adjusted voltage setpoint having a first value when the power level is above a maximum threshold, increasing the voltage setpoint to the adjusted voltage setpoint having a second value when the power level is below a minimum threshold, and slewing the adjusted voltage setpoint to the voltage setpoint so that the adjusted voltage setpoint has a third value when the power level is within a range defined by the maximum threshold and the minimum threshold.
Abstract: An access panel having a magnetic clasp, hingedly joined to an enclosure surface, especially an enclosure housing electronic components. The access panel can removably cover electronic utilities, such as sockets, ports, controls, and the like, and seal out moisture and debris. In various implementations, the access panel is secured against the enclosure surface magnetically.
Abstract: A hinge assembly for pivotally joining the opposing halves of a carryable case, especially a case for housing an electronic apparatus. The disclosed hinge is adapted to convey electrical conductors from one half of the case to the other, while protecting them from damage by excessive flexing, abrasion, moisture, and debris.