Abstract: A LED lighting module is described that is realized as a printed circuit assembly. The LED lighting module has a carrier with a strip of dielectric material and conductive circuit tracks printed on the dielectric material. Bare LED dies are mounted in a linear formation on the carrier. The width of the LED die formation does not exceed 0.75 mm and the area of the emission face of an LED die does not exceed 0.0625 mm2. Drivers are mounted on the carrier and are connected to drive the LED dies.

Abstract: A ventilation ring for a bearing support member of an aircraft turbine engine includes two or more tubular walls and one or more spacer walls. The two or more tubular walls extend opposite each other, and one or more of the tubular walls includes a main portion and a base, the base having a thickness greater than a thickness of the main portion. The one or more spacer walls connect the two or more tubular walls. The one or more spacer walls have one or more apertures extending into the base and a rim around the aperture. An entirety of the rim has a thickness greater than a thickness of the spacer wall at a distance from the rim.

Abstract: The present disclosure includes circuits and methods for controlling the operation of a switching regulator. Closing and opening high side and low side switches may be controlled so that an inductor current may be used to charge and/or discharge an intermediate switching node when both switches are open. In one embodiment, delays between a low-to-high transition and a high-to-low transition of an AC stage may be cycled over multiple periods of a DC stage.

Abstract: A switching regulator circuit can include multiple switching regulator stages coupled to an output. A first switching regulator stage may be operated at a different frequency than a second switching regulator stage. In some cases, one switching regulator stage is operated at a different duty cycle. The switching regulator circuit may also include multiple switching regulator stages that cancel ripple at an output node.

Abstract: The present disclosure includes circuits and methods for controlling the operation of a switching regulator. Closing and opening high side and low side switches may be controlled so that an inductor current may be used to charge and/or discharge an intermediate switching node when both switches are open. In one embodiment, delays between a low-to-high transition and a high-to-low transition of an AC stage may be cycled over multiple periods of a DC stage.

Abstract: The present disclosure includes switching regulator circuits and methods. In one embodiment, multiple switching regulator stages are coupled to an output. A first switching regulator stage is operated at a different frequency than a second switching regulator stage. In another embodiment, one switching regulator stage is operated at a different duty cycle. Embodiments of the present disclosure may include multiple switching regulator stages that cancel ripple at an output node.

Abstract: A pump having a first substrate extending in a plane, a cavity formed in a top face thereof and having fixed lateral walls that delimit sides thereof, intake and evacuation channels formed in the top face, each parallel to the plane from an inlet to an outlet, the outlet of the intake channel and the inlet of the evacuation channel opening into the cavity at the walls, a second substrate bonded onto the top face and forming a fluid-tight chamber, a membrane forming a wall of the chamber and being deformable between suction and positions to suck or discharge fluid, and non-return valves formed in the top face, each having a proximal side anchored to the first substrate. The proximal side of the first is between the orifices of the intake channel, and the proximal side of the second valve is between the orifices of the evacuation channel.