摘要:
One example includes a half-bridge switching circuit system. The system includes a first plurality of switches arranged between a first rail voltage and an output on which an output voltage is provided and a second plurality of switches arranged between a second rail voltage and the output, the first and second pluralities of switches being controlled via a plurality of switching signals. The system also includes a plurality of flying capacitors arranged to interconnect the first and second pluralities of switches, and further includes a plurality of snubber circuits that are each arranged in parallel with a respective one of the plurality of flying capacitors, the first plurality of switches, and the second plurality of switches.
摘要:
A cooling device for a motor winding having a first end turn and a second end turn and extending around a stator tooth having a first axial end surface and a second axial end surface includes a cradle portion. A cover portion cooperates with the cradle portion to define an interior space for receiving the first end of the winding to space the first end from the first axial end surface of the stator tooth.
摘要:
Improved generator output circuitry for twin turbine includes boost DC converters for each of a pair of generators with their output introduced to a single inverter, which serves both generators and converters in common. The inverter output then proceeds in conventional AC form through a disconnect switch to a power grid.
摘要:
SYSTEM FOR OPERATING A GENERATOR AS A MOTOR IN A TURBINE WIND POWER GENERATING SYSTEM includes a controller and Four Quadrant or Regenerative Drive Circuitry which alternatively operates one or more generators as motors.
摘要:
Improved generator output circuitry for twin turbine includes boost DC converters for each of a pair of generators with their output introduced to a single inverter, which serves both generators and converters in common. The inverter output then proceeds in conventional AC form through a disconnect switch to a power grid.
摘要:
A printer in which loading of print media is greatly facilitated and in which modular construction is used in order to substantially reduce the number of parts normally needed for this type of printer. The printer includes a base and an associated cover that encloses an interior region of the printer. The cover is movable between opened and closed positions and mounts a spring biased platen roller which is engageable with a printhead fixed in the base, when the cover is closed. A cutter mechanism, including a fixed blade mounted to the cover and a reciprocating blade mounted in the base also separates whenever the cover is opened in order to further facilitate print media loading. The printhead is secured to a printhead mounting and control module which also includes componentry and circuitry needed to drive the printhead. The module which may be in the form of a circuit board assembly also mounts control switches which are actuatable by other printer structure or by buttons that are accessible from the exterior of the printer. A resilient alignment mechanism is used to promote uniform cutting contact between the fixed blade and reciprocating blade when the cover is closed.
摘要:
A permanent magnet motor, generator or the like that is liquid cooled using glycol or similar fluid with the means defining cooling passageways disposed directly in the winding slots of the stator between and in engagement with the windings and stator laminations.
摘要:
One example includes a half-bridge switching circuit system. The system includes a first plurality of switches arranged between a first rail voltage and an output on which an output voltage is provided and a second plurality of switches arranged between a second rail voltage and the output, the first and second pluralities of switches being controlled via a plurality of switching signals. The system also includes a plurality of flying capacitors arranged to interconnect the first and second pluralities of switches, and further includes a plurality of snubber circuits that are each arranged in parallel with a respective one of the plurality of flying capacitors, the first plurality of switches, and the second plurality of switches.
摘要:
An actuator for moving a first component relative to a second component includes a first actuating mechanism secured to the first component and having a first motor, a first nut, and a first shaft secured to the first motor and the first nut such that the first nut is rotatable with the first motor. A second actuating mechanism is secured to the second component and has a second motor, a second nut, and a second shaft secured to the second motor and the second nut such that the second nut is rotatable with the second motor. A screw is threadably engaged with the first nut and the second nut such that rotation of at least one of the first motor and the second motor causes movement between the first and second nuts to move the second component relative to the first component.