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| Number | Title | Issue Date |
| 7346272 | Anti-trap protection detection based on comparing the duty cycle of a PWM control system In order to create a method and an apparatus for anti-trap protection detection for displaceable window and door elements by means of which faster and more stable adjustment to current physical conditions can be achieved during system actuation, in the system the mo... | 03/18/2008 |
| 7215056 | Electrical machine In order to prevent, among other things, fatigue failures in squirrel-cage rotors of electrical machines, the invention provides that the squirrel-cage winding is comprised of flexible conductors. ... | 05/08/2007 |
| 7161270 | Line start reluctance synchronous motor A line start reluctance synchronous motor includes: a single phase stator arranged at an inner circumferential surface of a motor body and on which a main coil and a sub coil are wound; a magnet unit free-rotatably arranged along an inner circumferential surface of ... | 01/09/2007 |
| 7084597 | Motor control apparatus In an automatic transmission position control by a motor, it is determined whether the present instant belongs to a starting period, that is, the present instant is immediately after resetting of a control unit or application of power to it. If it is the starting pe... | 08/01/2006 |
| 7005814 | Motor control apparatus having current supply phase correction In a motor-driven shift position switching device, when the difference between a target position and the rotation position of a rotor has become smaller than a prescribed value in a motor feedback control, a transition is made to a deceleration control. A phase lead... | 02/28/2006 |
| 6952088 | PSC motor system for use in HVAC applications with improved start-up A motor control system for use in heating, ventilation and air conditioning applications including a blower and a motor coupled to drive the blower, an inverter coupled to provide energization to the motor, a relay capable of coupling the motor to the output of the ... | 10/04/2005 |
| 6922038 | Speed control circuit for a dc brushless motor A speed control circuit for a dc brushless motor includes a switch circuit and a voltage-detection circuit. The voltage-detection circuit is actuated depending upon high or low voltage of power supply to thereby cause the switch circuit to output high or low operati... | 07/26/2005 |
| 6822419 | Speed control circuit for a DC brushless motor A motor speed control circuit includes a switch circuit and a voltage-detection circuit. The voltage-detection circuit is actuated depending upon high or low voltage of a power supply to thereby cause the switch circuit to output high or low operating voltage to a d... | 11/23/2004 |
| 4761602 | Compound short-circuit induction machine and method of its control An induction machine having a stator carrying phase coils divided into at least two independently fed sets of coils, with a rotor or armature carrying one or more loop members, each of which is a short-circuited, continuous isolated loop conductor member ... | 08/02/1988 |
| 4672289 | Circuit configuration incorporating an A.C.-fed load connected in series with a capacitor unit A circuit arrangement in which an a.c. load is connected in series with a capacitor unit suitable for a.c. connection. In such a circuit arrangement, the use of capacitors suitable for d.c. operation is made possible by the fact the capacitor unit is made... | 06/09/1987 |
| 4672290 | Circuit arrangement in which a capacitor unit is connected in series with an a.c. load A circuit arrangement is disclosed in which a capacitive unit suitable for a.c. operation is connected in series with an a.c. load. An extension of the life of the capacitors can be achieved by having the capacitor unit consist of two capacitors connected... | 06/09/1987 |
| 4431958 | Control apparatus for single phase AC induction motor A control for establishing a rotating field in a single phase AC induction motor (10) having a rotatable output and first (12) and second (14) sets of mechanically displaced windings which are energized alternately and cyclically by a single phase AC inpu... | 02/14/1984 |
| 4381482 | Single-phase, reversible induction motor A single-phase, reversible induction motor, comprising two cylindrical rotors disposed side by side on the same axis of rotation, the rotors being composed of laminated iron cores and provided with grooves of the same number disposed in parallel with the ... | 04/26/1983 |
| 4371802 | Half-pitch capacitor induction motor A balanced, half-pitch capacitor induction motor having a stator core member with equally spaced teeth equal in number to twice the number of motor poles and with the inner ends of the teeth having equal angular extent, and a squirrel cage rotor member. T... | 02/01/1983 |
