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114results about How to "Ease of control" patented technology

Sequentially-controlled solar array power system with maximum power tracking

A power and control architecture employing circuitry that sequentially regulate power flows from independent solar-array sources or a mixture of power sources providing power to a common load. The device may be used on a satellite with solar-array sources; however it may also be used on ground based systems. Stiff bus voltage regulation is obtained by tightly controlling the most recently activated power-processing channel while keeping the previously activated power-processing channels in the Maximum Power Tracking mode to supply maximum power to a common load. The remaining power-processing channels are turned off or operated in stand-by mode. In an alternative system, with primary design goal of uniform power sharing among solar-array sources, all solar array sources are activated with uniform power sharing at light load and, as load demand increases, sequentially controlled to operate in the Maximum Power Tracking mode one solar array source at a time as necessary.
Owner:THE AEROSPACE CORPORATION

Transmission for a walk-behind lawn mower

A transmission device between a primary motor shaft and a drive shaft for the wheels of self-propelled lawn mowers having a driving member connectable to a motor shaft, an output shaft, and a helically threaded driven gear rotatably mounted and moveable axially on the output shaft, the driven gear including an exterior driving surface and an interior surface, the interior surface including a plurality of teeth fixed in rotation with the gear, the teeth having a sloped leading edge and trailing edges substantially on a plane extending radially outward from the center of the driven gear, the outer engaging surface in constant engagement with the driving member so that the driven gear rotates whenever the driving member rotates. A control member configured to move the driven gear along the axial axis of the output shaft from a first position to a second position, the control member including a fork with two branches, each branch of the fork being provided with a radial internal tooth so as to ensure contact with the driven gear. A projection secured in rotation with the output shaft and extending from the output shaft such that opposite ends of the projection project from the output shaft to engage the interior teeth of the driven gear, projection being positioned on the output shaft such that when the driven gear is in the first position, the projection is disengaged from the interior surface of the driven gear such that the driven gear is uncoupled from the output shaft, and when the driven gear is moved to the second position, the projection engages the interior surface of the driven gear in a locking relationship to produce a driving rotation of the output shaft.
Owner:MTD PRODUCTS
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