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| Number | Title | Issue Date |
| 7109780 | Control circuit for semiconductor component Control circuit for an IGB transistor, which comprises means (T1, V1, C3, C4) for generating auxiliary voltage, a first and a second controllable control switches (V8) connected in series between the auxiliary voltage, and a gate r... | 09/19/2006 |
| 6242961 | Methods and circuits for restoration of a drooped DC signal Circuits for the restoration of a drooped signal are disclosed. In the asynchronous mode circuit, the drooped signal can be restored by detecting the peak of the positive amplitude and the peak of the negative amplitude and take the difference between the... | 06/05/2001 |
| 6091288 | Inverter circuit with avalanche current prevention An electronic circuit includes first and second inductive bias elements coupled to respective first and second switching elements for preventing avalanche current flow through the switching elements. In one embodiment, a resonant inverter circuit includes... | 07/18/2000 |
| 5789959 | Circuit configuration for direct voltage and alternating voltage decoupling Direct voltage and alternating voltage signals are decoupled from a first and a second pair of leads. The pairs of leads each carry an alternating voltage signal and they are subject to a direct voltage between them. A capacitive connection of the leads w... | 08/04/1998 |
| 5736884 | Device for generating a control signal dependent on a variable resistance value and apparatus comprising such device A device for generating a control signal voltage which is dependent on a resistance value of a variable resistor (8) includes a transformer (24) having a first winding (22) which is in series with the variable resistor and a rectifier diode (20). A curren... | 04/07/1998 |
| 5675275 | Arrangement for the generation of a high-frequency needle pulse train and of an inverted needle pulse train In order to sample high-frequency signals, it is necessary to have a needle pulse train and a needle pulse train which is inverted with respect thereto. By means of a switch (T) which is controlled by a clock signal (U), a positive operating voltage (U | 10/07/1997 |
| 5554948 | Adaptive threshold circuit with deceleration compensation An adaptive threshold circuit for use with a magnetic type of sensor that has a pick-up coil. The pick-up coil has an alternating voltage induced therein when a slot or tooth formed in a wheel rotates past the sensor. The circuit produces a square wave pu... | 09/10/1996 |
| 4996444 | Clock recovery circuit A clock recovery circuit includes a resonant circuit which is driven into oscillation at a clock frequency by binary 1 pulses in a data signal supplied thereto, a clock signal being derived from the resonant circuit via a buffer and a limiting amplifier. ... | 02/26/1991 |
| 4810904 | Sample-and-hold phase detector circuit A sample-and-hold phase detector (30, 80, 90, 100, 110) which includes sample-and-hold circuitry (FIG. 6) having variable efficiency. Specifically, the sample-and-hold circuitry provides a sampling pulse of variable width which is controlled to be wider d... | 03/07/1989 |
| 4355400 | Transmitting amplifier for a remote fed intermediate regenerator A remote fed intermediate regenerator for use in transmission lines for digital signals having no direct current component has for each transmission direction a series circuit including a distortion corrector a regenerator circuit and a transmitting ampli... | 10/19/1982 |
| 4297595 | Signal regenerating circuit with improved input-output isolation Digital signals are applied to an ungrounded transmission line through a two channel system, one channel being operative in response to a binary "1" the other in response to a binary "0." Each channel, when active, receives high frequency oscillations thr... | 10/27/1981 |
| 4090154 | Matching arrangement for converting bi-directional signals into binary signals A matching network for distributing high frequency bi-directional signals transmitted along a coaxial transmission line includes a transformer and an active filter having a second order transfer function for coupling a transmitter or a receiver to the tra... | 05/16/1978 |
| 4066970 | Pulse shaper for coaxial cable system A synchronizing, pick-off type circuit for use with underground detection systems of a variety utilizing a high voltage pulse generator generating pulses by dielectric breakdown over a gap and evidencing a sustained and discernable substantially lower vol... | 01/03/1978 |
| 4028559 | Regenerative repeater circuit arrangement for use in digital data transmission systems Bipolar digital repeaters are commonly fed with a constant d.c. supply but with the known circuit, the mode of use of transformer-coupled output stage places a limitation on the voltage-amplitude of the output pulses. The 120 M bit/s data transmission sys... | 06/07/1977 |
| 4027178 | Circuit for generating synchronization signals A circuit for generating synchronization signals from a digital data pulse train having a bit period T and conveying pulses in non-return-to-zero form. The circuit comprising (i) a rectifier device arranged to fullwave rectify the digital data pulse train... | 05/31/1977 |
| 4021685 | Pulse circuit for reshaping long line pulses A pulse circuit for reshaping pulses received over a long line includes a transformer having a primary winding connected to the line and a center-tapped secondary winding. The transformer and the line are together arranged to have a time constant which is... | 05/03/1977 |
