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| Number | Title | Issue Date |
| 7352826 | Analog delay circuit An analog delay circuit to impart a group delay to an analog input signal is described. The analog delay circuit may comprise a capacitor to impart at least a portion of the group delay to the analog output signal and a buffer circuit coupled between the capacitor a... | 04/01/2008 |
| 7103791 | Interleaved delay line for phase locked and delay locked loops An interleaved delay line for use in phase locked and delay locked loops is comprised of a first portion providing a variable amount of delay substantially independently of process, temperature and voltage (PVT) variations while a second portion, in series with the ... | 09/05/2006 |
| 6627879 | Voltage pulser circuit One illustrative embodiment of a voltage pulser circuit comprises a voltage source producing a first voltage, and a thyratron tube having an anode coupled to the output of the voltage source, a cathode connected to a reference potential and a grid respons... | 09/30/2003 |
| 6297676 | High capacitance drive fast slewing amplifier A ring inhibiting charging and discharging circuit (100) for use with an amplification circuit (102) that drives a load (108) is responsive to an input (104) and is capable of generating an output (106) corresponding to the input (104). The ring inhibitin... | 10/02/2001 |
| 6154099 | Ring oscillator and method of measuring gate delay time in this ring oscillator A ring oscillator is formed by connecting three or more odd gate circuits in a ring. Each gate circuit includes a precharge dynamic gate. An output signal from the precharge dynamic gate of one gate circuit is used to precharge the precharge dynamic gates... | 11/28/2000 |
| 6069414 | Apparatus and method for recharging a string a avalanche transistors within a pulse generator An apparatus and method for recharging a string of avalanche transistors within a pulse generator is disclosed. A plurality of amplification stages are connected in series. Each stage includes an avalanche transistor and a capacitor. A trigger signal, cau... | 05/30/2000 |
| 5391998 | Modulator for efficiently generating short high voltage repetitive pulses A modulator for producing repetitive short high voltage pulses is provided. The modulator includes a high voltage power supply, a plurality of pulse forming networks each capable of being charged to a potential equal to twice the voltage of the high volta... | 02/21/1995 |
| 5291143 | Modulator with improved damping A modulator with improved damping comprises a charging network which limits the rate at which energy is transferred into a pulse forming network, and a switch to discharge the energy stored in the pulse forming network when the network has charged to a pr... | 03/01/1994 |
| 5184085 | High-voltage pulse generating circuit, and discharge-excited laser and accelerator containing such circuit A first high-voltage pulse generating circuit comprises a magnetic pulse compression circuit having a main saturable reactor provided with a reset circuit, the reset circuit being provided with a second saturable reactor for providing pulse voltage or cur... | 02/02/1993 |
| 5148111 | Electromagnetic pulse simulator An electromagnetic pulse simulator includes two large-area electrodes mounted in spaced apart relation, and a high voltage generator electrically connected to the two electrodes to apply a high voltage between them. The electrical connection of the high-v... | 09/15/1992 |
| 5089727 | Pulsed driver circuit A modulator circuit provides pulses of electrical energy to an electrical load in response to a trigger signal. A normally nonconductive Mosfet is included in a series circuit path with the electrical load and a capacitor. A silicon controlled rectifier (... | 02/18/1992 |
| 5083093 | Circuit for coupling energy to pulse forming network or capacitor A pulse forming network or capacitor load is charged to a precise voltage from an energy storing device with a circuit including a transformer having a primary connected in series with a switch and storage device and a secondary connected in series with t... | 01/21/1992 |
| 5066928 | Soliton pulse compressor A pulse compressor for solitons includes a continuous dispersive non-linear propagation structure so constructed so that the wavefront of an individual soliton pulse is steepened. In addition, the pulse compressor has a continuously reduced time constant ... | 11/19/1991 |
| 4996495 | Method and apparatus for generating pulsed RF power An improved method and apparatus for generating a pulsed RF power signal is provided. A DC pulse signal is generated which is compressed to increase its power to a predetermined level. The compressed pulse signal is applied to rapidly charge capacitive el... | 02/26/1991 |
| 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 |
| 4724363 | Current control circuit for high voltage applications A current control circuit for high voltage applications includes series-connected high and low voltage sources through which the current to be regulated flows. The low voltage source is a capacitor which is periodically recharged through a flyback transfo... | 02/09/1988 |
| 4719429 | Transmission line microwave generator The present invention is a device for generating high power microwave pulses using a nonlinear dispersive transmission line connected by a switch means to a source cable means and a high voltage source. The closing of the switch means sends an electrical ... | 01/12/1988 |
| 4698518 | Magnetically switched power supply system for lasers A laser power supply system is described in which separate pulses are utilized to avalanche ionize the gas within the laser and then produce a sustained discharge to cause the gas to emit light energy. A pulsed voltage source is used to charge a storage d... | 10/06/1987 |
| 4682114 | Power modulator provided with a transformer The invention concerns a power modulator provided with a transformer. This transformer having a high transformation ratio receives a low voltage impulse and transforms it into a high voltage impulse directly applicable on a high frequency or hyperfrequenc... | 07/21/1987 |
| 4642518 | Installation of electron beam metalworking An installation for electron beam metalworking comprises an electron gun (1), a transformer and rectifier system producing a rectified high voltage supplied to the gun, a vacuum tube (23) disposed in the circuit and associated with means (21) sensitive to... | 02/10/1987 |
| 4629993 | Pockels cell driver A Pockels cell driver using a microwave triode which transfers charge from a high voltage source to a Pockels cell via a storage capacitor. The microwave tube is controlled, through its grid voltage, by two pulse amplifiers each having a plurality of tand... | 12/16/1986 |
| 4620113 | Pockels cell driver A Pockels cell driver useful to operate the Pockels cell as an optical shutter to select one or more laser pulses out of a train of laser pulses when the Pockels cell is placed between crossed polarizers. The Pockels cell is connected through a storage ca... | 10/28/1986 |
| 4614878 | Pulse generator An apparatus and method is disclosed that produces a high powered sub-microsecond pulse. The present invention utilizes a set of parallel high speed switches and drivers to switch a Darlington Pulse forming network that is charged by a resonant charging c... | 09/30/1986 |
| 4612477 | Triggering device for a vacuum arc in a plasma centrifuge The present invention is directed to an apparatus for producing a vacuum arc in a plasma centrifuge. The apparatus comprises a cathode of a material from which the vacuum arc is formed and a trigger electrode. A trigger circuit is coupled to the trigger e... | 09/16/1986 |
| 4577118 | Driving circuit for pulse current power supplies A driving circuit for pulse current power supplies, particularly septum and kicker magnets for accelerators, with an inductance coil and a resonant circuit capacitor, has a thyratron, whose anode line is surrounded by a ring band core. A resistor and a se... | 03/18/1986 |
| 4517497 | Capacitor discharge apparatus A capacitor discharge apparatus of the kind having a spark gap device for discharging a capacitor to provide a current impulse for conduction through a load. The capacitor and spark gap device both include flat terminals for connecting them directly to a ... | 05/14/1985 |
| 4491842 | Frozen wave generator jammer A high peak power, broad band, radio frequency pulse generator generates are wave pulses at a high pulse repetition frequency for use in jamming of radar, data links, voice communication, or other radio frequency signals. The generator is constructed wit... | 01/01/1985 |
| 4406952 | Opening switch for interrupting current using a plasma focus device An opening switch device for interrupting the flow of high amperage currents such as those which occur in inductive energy storage systems is disclosed. The opening switch includes a plasma focus device incorporating an auxiliary electrode through which t... | 09/27/1983 |
| 4398156 | Switching power pulse system A switching system for delivering pulses of power from a source (10) to a load (20) using a storage capacitor (C3) charged through a rectifier (D1, D2), and maintained charged to a reference voltage level by a transistor switch (Q1) and voltage comparator... | 08/09/1983 |
| 4370597 | Thyratron switch for narrow pulses Narrow pulse modulation (less than four nanoseconds) of millimeter wave ts will enable radar systems to achieve improved pattern recognition. The modulator has an outer cylindrical return shield surrounding a tetrode thyratron. An inner cylindrical shiel... | 01/25/1983 |
| 4275317 | Pulse switching for high energy lasers A saturable inductor switch for compressing the width and sharpening the rise time of high voltage pulses from a relatively slow rise time, high voltage generator to an electric discharge gas laser (EDGL). The switch also provides a capability for efficie... | 06/23/1981 |
| 4272692 | Power supply distribution system A plurality of modules, each adapted to generate repetitive RF pulses are connected to a common coarse DC power supply. Each of the modules, which include a pulsed load, has a switching transistor connected in series with the load, and a precise voltage c... | 06/09/1981 |
| 4203052 | Solid state ignition system A solid state ignition system for generating high frequency and high energy electrical pulses, the system providing improved performance under varying line voltage conditions, improved voltage regulation, and reduced power dissipation, and being effective... | 05/13/1980 |
| 4196359 | Differentially-charged and sequentially-switched square-wave pulse forming network A pulse forming network for delivering a high-energy square-wave pulse to a load, including a series of inductive-capacitive sections wherein the capacitors are differentially charged higher further from the load. Each charged capacitor is isolated from a... | 04/01/1980 |
| 4185244 | High voltage nanosecond pulser using a repetitive series interrupter A pulse generation system using an inductive energy storage technique is described. A high magnitude current flowing in a storage inductor is suddenly halted by means of a repetitive series interrupter device and an accompanying magnetic field coupled con... | 01/22/1980 |
| 4150307 | Line modulator nondissipative series regulator A regulating charging circuit for the pulse-forming network in a line-type pulse modulator, such as commonly found in pulsed radar systems. A charging inductor is the primary of a transformer, the secondary of which is open-circuited until the resonant ch... | 04/17/1979 |
| 4119917 | Sequentially triggering two or more hydrogen thyratrons with precision timing Two or more hydrogen thyratrons sequentially triggered with precision timing. The first tube is triggered and provides a long, low power, slowly rising pulse to a load. Approximately midway in said pulse the second tube is made to conduct, providing a sho... | 10/10/1978 |
| 4090140 | Constant current charging circuits for high energy modulators Means for achieving square wave charging of pulse forming networks in line ype pulsers which include parallel pulse forming networks with charging inductors connected between the PFNs. The cumulative value of the distributed inductance of the charging indu... | 05/16/1978 |
| 4076996 | Power supplier for magnetron The present disclosure relates to a power supplier for a magnetron for use in electric appliances, such as a microwave oven. The power supplier of the present disclosure has a solid state frequency converter which changes commercial A.C. power to A.C. pow... | 02/28/1978 |
| 4070589 | High speed-high voltage switching with low power consumption A capacitive load is charged through a series transistor. Peak charge currents for the load are drawn from a capacitive source whose charge is constantly maintained. Rapid discharge of the capacitive load is through a semiconductor diode and a cascade of ... | 01/24/1978 |
