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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...
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5014181 |
Magnetic amplifier package and method of cooling the same
A magnetic amplifier package (1) comprises a diode rectifier (6) and a plurality of saturable reactors in the form of toroids (2) having cores (3), gate windings (4) and control windings (5). The...
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4899103 |
Current meter
A variable electrical current in a first winding on a magnetizable core produces a magnetomotive force in the core. A second core winding produces an opposing magnetomotive force digitally...
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4823074 |
Low power consumption current transducer
A low power consumption current transducer utilizes a saturable core reactor which includes a pair of opposed gate windings and a control winding. The control winding of the saturable reactor is...
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4675615 |
Magnetic amplifier
A magnetic amplifier employing a single four-legged ferrite core having orthogonally disposed through holes in the core. Biasing is provided of the magnetic core so as to provide operation in the...
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4482862 |
Current sensor
A current measuring system includes three toroidal magnetic cores. The first core has a non-linear B-H characteristic and being adapted for operation in and between its saturation ranges of its B-H...
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4417153 |
High frequency switching circuit
A single-ended switching circuit is constituted by a primary winding of a transformer, a switching circuit connected between the primary winding and a DC power supply and on-off operated with a...
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4377758 |
Magnetic amplifying apparatus
In an apparatus having a saturable magnetic core, a control winding wound on the magnetic core and supplied with a D.C. voltage in accordance with a desired phase angle, and an output winding wound...
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4286211 |
Direct current detecting device using saturable reactors
A direct current detecting device is disclosed in which two pairs of saturable cores are provided so as to enclose a conductor carrying a direct current to be measured. On each of the saturable...
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4280064 |
Signal isolator
An improved signal isolator including two nonlinear circuits having nonlinear voltage-to-current characteristics, in which an input network is formed by connecting one of the nonlinear circuits in...
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4272713 |
Switching transconductance amplifier for inductive loads
A switching current amplifier for stepping motors utilizing a square hysteresis loop transformer to measure the motor winding load current directly, to determine the high and low switching points...
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4266190 |
Dual core magnetic amplifier sensor
A magnetic amplifier sensor for measuring the magnitude and polarity of a DC current flowing in a line includes a pair of saturable cores, each having a primary and secondary winding mounted...
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4262259 |
Low current linearization of magnetic amplifier for DC transducer
A magnetic amplifier having two saturable reactor cores with a separate excitation winding on each connected in series opposition, a common control winding and a common output winding, is adapted...
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4171510 |
System for detecting output of controllable semiconductor device
A system for detecting an output of a controllable semiconductor device includes a controllable semiconductor device, a magnetic amplifier to which an output of the semiconductor device is fedback...
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4163191 |
Magnetic phase shifter control system
A magnetic phase shifter control system comprises a magnetic phase shifter for producing an output signal in accordance with a control command at a predetermined amplification degree, a circuit for...
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4155034 |
Saturable reactors with feedback
A control circuit comprises two series-connected pairs of saturable reactors, the two pairs being connected in parallel between a supply line and a load. Between one pair of reactors are connected...
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4092607 |
Magnetic amplifier having a co-axial winding
A magnetic amplifier having a magnetic core in the shape of a hollow cylinder is provided with a gate winding comprising series-connected coaxial conductors passing through the center of the hollow...
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4000473 |
Isolation amplifier
Disclosed is an isolation amplifier, wherein a DC input signal is applied to the primary winding of a saturable reactor, the secondary winding of which is coupled with an oscillating circuit so as...
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3913583 |
Control circuit for electrosurgical units
A control circuit for electrosurgical units which controls power levels to patient electrode in response to load conditions thereof. A saturable reactor is connected in series between the output of...
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3870973 |
INPUT MAGNETIC FIELD SENSING SYSTEM WITH UTILIZATION OF A HYSTERESIS PHENOMENON
An input magnetic field sensing system which utilizes hysteresis in a magnetic material comprises an input magnetic field component, an input magnetic field converter utilizing the hysteresis...
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3801907 |
DIRECT CURRENT MEASUREMENT
A direct current measuring device utilizing two pairs of saturable toroidal reactors to generate two output signals which are compared to provide a feed back signal. The feed back signal is applied...
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3739291 |
HALF-WAVE BRIDGE TYPE MAGNETIC AMPLIFIER
1. A multistage magnetic amplifier having an a.c. line, each stage comprising a pair of closed magnetic circuits and two branch circuits connected across said a.c. line, each branch circuit...
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3724392 |
MAGNETIC AMPLIFIERS AND APPARATUS
A magnetic amplifier is proposed especially for use in traction and/or braking control systems for railways in which control is in response to an analog current flowing in a wire running down the...
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3659216 |
LINEAR MAGNETIC AMPLIFIER
Disclosed is a 2 stage linear magnetic amplifier. The first stage includes a pair of saturable magnetic cores each having a control and a gate winding thereon. Excitation voltage is provided to...
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3631334 |
DEVICE FOR VOLTAGE STABILIZATION AT THE INPUT OF A POWER CONSUMER REMOTE FROM POWER SUPPLY SOURCE
A voltage stabilization device at the input of a power consumer remote from a power supply source comprises a plurality of controllable magnetic power amplifiers including respective working power...
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3619512 |
DC SIGNALING SYSTEM UTILIZING MAGNETIC AMPLIFIERS
A pair of magnetic amplifiers have their input windings serially connected to the receiving end of a transmission line for distinguishing between four different levels of direct current transmitted...
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3617943 |
MODULATOR WITH REACTANCE ELEMENT HAVING NONLINEARITY
A reactance element in which a ferromagnetic, ferroelectric, or antiferroelectric material having point-symmetry, saturated nonlinearity is interposed as a modulation element between signal input...
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3614644 |
AMPLIFIER APPARATUS WITH DISTORTION COMPENSATION
A transistor amplifier is shown wherein a second transistor is connected to generate distortion components substantially the same as those generated by non-linearities of the base-emitter junction...
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3579051 |
SENSITIVE MAGNETIC AMPLIFIER RELAY DRIVER
Electronic circuit capable of responding to a low signal input including a preamp magnetic amplifier circuit receiving one or a plurality of input signals and conditioned to deliver an output...
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3550007 |
VARIABLE THRESHOLD SIGNAL DETECTION AND ISOLATION CIRCUIT
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3509445 |
PULSE WIDTH MODULATED POWER AMPLIFIER
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3499168 |
VOLTAGE REGULATING CIRCUIT WITH REACTOR SENSING MEANS
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3497819 |
MAGNETIC AMPLIFIER OF THE KIND HAVING A CONTROLLABLE SHUNT
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3488601 |
REVERSIBLE MAGNETIC AMPLIFIER
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3718872 |
MAGNETIC MODULATING SYSTEM
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3475678 |
THREE-PHASE A.C. REGULATOR EMPLOYING D.C. CONTROLLED MAGNETIC AMPLIFIERS
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3474327 |
ALTERNATING CURRENT LINE VOLTAGE REGULATOR (LVR)
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3469179 |
BUCK/BOOST VOLTAGE REGULATOR EMPLOYING SHUNT MAGNET AMPLIFIER
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3469199 |
MAGNETIC AMPLIFIER
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3454879 |
DIRECT CURRENT SUMMING CIRCUIT WITH COMPENSATING MEANS
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3445775 |
MAGNETIC AMPLIFIER
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3443234 |
DRIFTLESS DIRECT CURRENT AMPLIFIER
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3426969 |
CONDITION CONTROLLER WITH BISTABLE SWITCHING
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3423687 |
NON-LINEAR,POSITIVE-FEEDBACK AMPLIFIER
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3418588 |
Linearized magnetic amplifiers
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3408583 |
Magnetic amplifier
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3402359 |
Magnetic amplifier for low-level input signals
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3397361 |
Magnetic amplifier utilized as a static constant current regulator
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3392323 |
Industrial process signal-translating apparatus including conversion elements and cascaded magnetic amplifiers
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3388335 |
Equalized flux reset circuit for magnetic amplifiers
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