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| Number | Title | Issue Date |
| 7701316 | Integrated magnetic device An integrated magnetic device disposed on a system circuit board is disclosed. The integrated magnetic device comprises a first magnetic device and a second magnetic device. The first magnetic device comprises a primary winding having at least a terminal; a secondar... | 04/20/2010 |
| 7646279 | Apparatus for supplying energy to a load and a related system Apparatus for supplying energy to a load, comprises a power supply unit (102) e.g. a switched mode electronic transformer or electronic ballast having an input for receiving current at mains frequency and a means for stepping-up said mains frequency to a high... | 01/12/2010 |
| 7323964 | Non-contact power system with load and gap detection A non-contact power system transfers power and signals simultaneously. The signals control the non-contact power system. And an operational frequency is operated on a resonant frequency so that there is no voltage alternating on power switch and power loss is reduce... | 01/29/2008 |
| 7176778 | Magnetic core assembly having bobbin and mounting board thereof A magnetic core assembly with coils therein has a substantially spherical or ellipsoidal main body defining a hollow space therein. A column is disposed in the main body so as to be aligned with a center line of the main body. The main body is defined by a pair of s... | 02/13/2007 |
| 7044005 | Rotation angle sensor having single wire windings and method for winding a rotation angle sensor A rotation angle sensor and a method of winding a rotation angle sensor involve a single electrical wire that is wound from a rotor transformer to a magnetic rotor. The magnetic rotor is axially spaced on a shaft from the rotor transformer. A notch is formed in a wa... | 05/16/2006 |
| 6952152 | Winding fixing structure of a rotary transformer-type resolver A spacer 2 is provided between an inner core 62 and a resolver rotor 63, which are respectively attached to a rotary shaft 68. A cutout groove 42 is formed at a flange 41 of the inner core 62. A fixing groove 3 | 10/04/2005 |
| 6897756 | Apparatus with two components being movable relative to each other and a device for simultaneous transfer of electric power and information between these components The invention relates to an apparatus with a device for simultaneous transfer of electrical power and information between two components being movable to each other and preferably comprising a stationary and a movable component. According to the invention the appara... | 05/24/2005 |
| 6891460 | Rotor transformer positioning mechanism and operating method therefor A rotor transformer positioning mechanism permitting automatic positioning of a rotor transformer, having a first winding, relative to a rotor stack, having a second winding, mounted on a common rotary shaft to thereby permit a crossover having a predetermined lengt... | 05/10/2005 |
| 6441712 | Tuned filters for electric power systems A tuned filter for connection to a busbar in a high voltage electric power system. The filter incorporates a variable inductor comprising a main winding, auxiliary windings and switching circuitry associated with each auxiliary winding. The auxiliary wind... | 08/27/2002 |
| 6388548 | Non-contact transformer and vehicular signal relay apparatus using it It is intended to provide a non-contact transformer which simplifies attachment work, causes no sound of rubbing between wires or resistance during steering wheel manipulation, increases the transmission efficiency, and can be manufactured easily by virtu... | 05/14/2002 |
| 6326713 | A.C. electrical machine and method of transducing power between two different systems A structure for an a.c. electrical machine and method of transducing power between two different systems. The machine comprises two electrically balanced transformers which are generally, but not exclusively, three phase. Initially the transformers are in... | 12/04/2001 |
| 6157188 | Compact, long-range absolute position transducer with an extensible compact encoding A compact, long-range inductive absolute position transducer system has two members movable relative to each other and includes a code track transducer and at least one fine wavelength transducer. The two members include a read head member and a scale mem... | 12/05/2000 |
| 5973583 | Core assembly for coil units and method for producing the same A core assembly for coil units and a method for producing the same which can suppress a raise of temperature are provided. A secondary core (21) made of a ferrite includes a pair of core members (25, 25) which are symmetrical with respect to each other an... | 10/26/1999 |
| 5886519 | Multi-scale induced current absolute position transducer An inductive absolute position transducer system, usable in high accuracy applications such as linear encoders, has two members movable relative to each other and includes three inductive position transducers. Each inductive position transducer includes a... | 03/23/1999 |
| 5841274 | Induced current absolute position transducer using a code-track-type scale and read head A high-accuracy inductive absolute position transducer system has two members movable relative to each other and includes a code track transducer and may include a fine track transducer. The code track transducer includes a code track transmitter winding ... | 11/24/1998 |
| 5774320 | Modular current transformer for electronic circuit interrupters A modular current transformer containing both air and metal cores on a common load strap provides sensing current to the electronic trip unit within the circuit interrupter along with supplying operating power to the trip unit components. The current sens... | 06/30/1998 |
| 5598090 | Inductive joystick apparatus In one aspect of the present invention, a joystick is disclosed. The joystick includes a control shaft and a pivotal mount for the control shaft. A plurality of centering springs bias the control shaft to a neutral position, and extend and contract in res... | 01/28/1997 |
| 5583732 | Modular current transformer for electronic circuit interrupters A modular current transformer containing both air and metal cores on a common load strap provides sensing current to the electronic trip unit within the circuit interrupter along with supplying operating power to the trip unit components.... | 12/10/1996 |
| 4764744 | Overload relay having adjustably gapped current transformers A static trip overload relay includes a plurality of phase current sensing transformers having two-piece cores. One core piece of each transformer core is positionally mounted by the relay housing, while the other piece is positionally mounted by a carryi... | 08/16/1988 |
| 4685678 | Position transducer system for a joystick A joystick position transducer system for use in a video game. The joystick position transducer includes a pair of inductors each having a movable slug, the slugs being coupled to a control handle or knob by means of respective linkages. The control handl... | 08/11/1987 |
| 4532447 | Rotary electric machine forming more especially a speed variator or a torque converter The invention relates to a rotary electric machine able to be used as a speed variator and/or a torque converter. It comprises a stator with s pairs of poles, a central rotor (RM) with p pairs of poles and an intermediate rotor (RT) comprising, at its inn... | 07/30/1985 |
| 4512367 | Rotation detecting apparatus A rotation detecting apparatus for a power steering system of a vehicle is described which comprises a control valve coupled to a steering shaft of a steering wheel of the vehicle for controlling a flow of power fluid supplied to a power cylinder for powe... | 04/23/1985 |
| 4498064 | Pushbutton tuner with staggered tuning coils A pushbutton tuner wherein tuning coils are disposed in two decks, upper and lower, and the upper or lower tuning coils are disposed in front of the others. A printed circuit board to be connected to said tuning coils by lead wires is divided in two parts... | 02/05/1985 |
| 4445103 | Rotary differential transformer with constant amplitude and variable phase output A rotary differential transformer is provided which has a constant amplitude output the phase angle of which varies with the angular displacement of a rotor. The rotor contains a pair of core segments of magnetic material which serve to couple portions of... | 04/24/1984 |
| 4211993 | Device for processing high-frequency electrical signals A high-frequency device, comprising a number of solenoid coils which are arranged in a row along the edge of a board. Parallel to the row of coils there is provided a plate which extends perpendicularly to the board and which is provided with apertures wh... | 07/08/1980 |
