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| Number | Title | Issue Date |
| 7336046 | Short-circuit detection in electric path connecting drive device and load A control device controls a drive signal supplied from a drive device to a load apparatus along an electric path connecting the drive device and the load apparatus. The drive device receives a PWM (pulse width modulation) signal to PWM-control the drive signal, dete... | 02/26/2008 |
| 7288903 | Driving device of light source for display device A driving device of a light source for a display device is provided. The light source includes a plurality of lamps connected in parallel to each other and each lamp has a first terminal and a second terminal. The driving device also includes a lamp state sensing un... | 10/30/2007 |
| 7176650 | Operation of an electrical machine An electrical machine is controlled without using a physical rotor position detector. Rotor position is estimated by an algorithm which receives feedback from a parameter which represents the behavior of a phase of the machine. Before the algorithm estimates positio... | 02/13/2007 |
| 7109687 | Three-phase ac generator for vehicle A neutral point diode having three connecting terminals electrically commonly connected to each other is used in a type for connecting each generating coil of a three-phase alternating current electric generator for a vehicle in a Y-shape connection. The coil termin... | 09/19/2006 |
| 6765305 | Sensor-independent oscillation amplitude control A device is described for generating an electric voltage by which a body of a capacitive and/or inductive sensor capable of vibration, such as a capacitive micromechanical rotational rate sensor in particular, is induced to vibrate. In order to reduce the manufactur... | 07/20/2004 |
| 6153869 | AC/DC type microwave oven An AC/DC type microwave oven has a function of managing an input power source. The AC/DC type microwave oven comprises a rotatable inverter which inverts a DC power source to an AC power source by a rotational force, a high voltage transformer which recei... | 11/28/2000 |
| 6153870 | AC/DC type microwave oven Disclosed is an AC/DC type microwave oven. The AC/DC type microwave oven comprises a rotatable inverter which inverts a DC power source to an AC power source by means of a rotational force, a high voltage transformer which receives a common power source o... | 11/28/2000 |
| 6023152 | System for stabilizing a power supply system In order to provide a system for stabilizing a power supply system comprising a choke, which connects the power supply system to a mains power feed, a converter system connected to the power supply system and having a converter machine with a rotor and at... | 02/08/2000 |
| 5953225 | Power flow control and power recovery with rotary transformers An interconnection system (100) for transferring power between a first grid (22) operating at a first electrical frequency and a second grid (24) operating at a second electrical frequency includes a rotary transformer (102) and a power recovery system (1... | 09/14/1999 |
| 5767591 | Method and apparatus for providing startup power to a genset-backed uninterruptible power supply An uninterruptible power supply provides improved reliability by supplying temporary standby power to a critical load and startup power to a backup power source from a single energy storage system. In the preferred embodiment, a flywheel energy storage de... | 06/16/1998 |
| 4517471 | Rotary converter machine for direct transfer of electric energy by flux linkage between windings on a stator pack A rotary converter machine which includes a stator with three-phase primary, and secondary windings, and a rotor mounted within the stator which includes a damping winding. The primary and secondary stator windings are arranged on a common stator pack and... | 05/14/1985 |
| 4368418 | Apparatus for controlling high voltage by absorption of capacitive vars Apparatus for controlling high voltage by absorption of capacitive vars, comprising a stator (10) having a core and a three phase winding (14) connected to the high voltage, and a rotor (12) having magnetic material (20) exhibiting a sharp magnetic satura... | 01/11/1983 |
| 4064419 | Synchronous motor KVAR regulation system This disclosure relates to a synchronous motor KVAR regulation system which utilizes a synchronous motor connected to a power distributor line to generate corrective (capacitive) KVARS to automatically follow and compensate for KVARS being generated by th... | 12/20/1977 |
