Electricity: motive power systems – Braking – Dynamic braking
Patent
1982-12-30
1984-06-05
Dobeck, B.
Electricity: motive power systems
Braking
Dynamic braking
318138, 318380, 318430, 318439, 318492, 62 3, H02P 314
Patent
active
044531141
ABSTRACT:
The counter-EMF generated by electromechanical actuators (14), (16), (18) and (20) during deceleration of the actuators is pooled to power various temperature control devices, such as Peltier-type thermoelectric modules (26) associated with the actuators themselves or a similar thermoelectric module (24) and a fan (30) used to cool an AC-to-DC power converter (10) situated at a location remote from the electromechanical actuators. An electronic commutator circuit (44) is operably coupled to windings (38), (40) and (42), of the actuators to energize the windings to operate the actuators as motors and terminate such energization of the windings to permit deceleration of the actuator whereby it operates as a generator. A rectifier circuit (51) is connected to each commutator circuit (44) to divert from the commutator circuit (44) the counter-EMF generated by windings (38), (40), and (42) during deceleration of the actuators and simultaneously collect the counter-EMF energy generated by the actuators during such decelerating for selected powering of the various temperature control devices.
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Dobeck B.
Ro Bentsu
The Boeing Company
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