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| Number | Title | Issue Date |
| 6246209 | Control device for alternating current motor The present invention relates to a control of an AC motor, and in particular to a control device for an AC motor which can prevent an overvoltage from being applied to the motor, and minimize voltage consumption of a reactor itself during the starting and... | 06/12/2001 |
| 5523677 | DC current sensor A DC current sensor has a detecting core with a plurality of detecting core members adapted to be divided in a circumferential direction for receiving the lead wire. A pair of annular exciting cores on one of said detecting core members formed of saturabl... | 06/04/1996 |
| 5508606 | Direct current sensor Direct current can be measured by passing a conductor carrying the current through the core of a toroidal transformer having a bias winding and a sensing winding. A pulse generator send pulses of magnetization current through the sensing winding so that t... | 04/16/1996 |
| 4928020 | Saturable inductor and transformer structures for magnetic pulse compression Saturable inductor and transformer for magnetic compression of an electronic pulse, using a continuous electrical conductor looped several times around a tightly packed core of saturable inductor material.... | 05/22/1990 |
| 4845384 | Dynamic logic units Dynamic logic units utilize magnetic cores of rectangular hysteresis loop material wound with an input winding, a pair of output windings connected to a CMOS flip-flop, and a d-c control winding. With a d-c current on the control winding, the core experie... | 07/04/1989 |
| 4652771 | Oscillating flux transformer An oscillating flux transformer for transforming relatively large blocks of electrical power at power frequencies in direct accordance with the turn ratio of toroidal primary and secondary windings. The transformer includes a core-coil assembly having a p... | 03/24/1987 |
| 4638177 | Rotating flux transformer A rotating flux transformer which includes a magnetic core having poloidal primary and secondary windings and toroidal primary and secondary windings. Quadrature flux is produced in the magnetic core by connecting one end of the poloidal primary winding t... | 01/20/1987 |
| 4595843 | Low core loss rotating flux transformer A transformer utilizing a rotating flux for saturating the entire core. The transformer uses a core configured such that a vector sum of the induction produced by two windings in the core rotates through 360°. This is accomplished by arranging the compon... | 06/17/1986 |
| 4424459 | High frequency switching circuit A high frequency switching circuit comprised of a single-ended switching circuit, rectifying-smoothing circuit and magnetic amplifier which is connected between said single-ended switching circuit and rectifying-smoothing circuit. The magnetic amplifier i... | 01/03/1984 |
