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Industrial Electronics and Control Instrumentation, IEEE Transactions on

Issue 1 • Date Nov. 1968

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Displaying Results 1 - 15 of 15
  • Table of contents

    Publication Year: 1968 , Page(s): c1
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  • IEEE Transactions on Industrial Electronics and Control Instrumentation Group

    Publication Year: 1968 , Page(s): c2
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  • A Simple Bilateral Variable-Ratio dc Pulse Converter

    Publication Year: 1968 , Page(s): 1 - 5
    Cited by:  Papers (3)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1258 KB)  

    A very simple and economical circuit is presented which functions as a bilateral variable-ratio direct voltage transformer.The circuit, which consists essentially of two thyristors, two diodes, and an inductance, is a modification of the familiar pulse converter. When used for the controlof dc machines, dynamic braking is accomplished automatically by feedback of power to the supply. Furthermore, ... View full abstract»

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  • Commutation in a Bilateral Variable-Ratio do Pulse Converter

    Publication Year: 1968 , Page(s): 6 - 11
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1360 KB)  

    This paper is the second of two dealing with the design and operation of a simple circuit consisting essentially of two thyristors, two diodes, and an inductance which functions as a variable-ratio dc transformer. The circuit provides an economical means of speed control for dc motors by replacing the prime mover and generator of a traditional Ward-Leonard set. This paper considers the behavior of... View full abstract»

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  • A Nonconventional Amplistat Configuration

    Publication Year: 1968 , Page(s): 12 - 16
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    Circuits comprising saturable reactors driven into negative saturation offer very interestingpossibilities from both the theoretical and practical points of view. View full abstract»

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  • Adjustable All-Pass Network Suitable for Phase Shifting and Time Delay Applications in Integrated Circuits

    Publication Year: 1968 , Page(s): 17 - 21
    Cited by:  Papers (4)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1319 KB)  

    A nonreciprocal all-pass network employing a minimum number of reactive elements is presented. Since the basic network uses only gyrators and capacitors, the configuration is well suited to integrated circuit methods. The all-pass parameters can be changed electrically by adjusting the gyration conductances. An example of phase shift and time delay adjustment is presented. View full abstract»

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  • A Special-Purpose Navigation Computer Utilizing Current Integrators and Step Motors

    Publication Year: 1968 , Page(s): 21 - 28
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (2768 KB)  

    The basic principle of this integrating circuit is to allow the current integrator to integrate to a preset reference, reset the current integrator by discharging the integrating capacitor, and count each reset. Thus the total integration can be found by observing the total number of smaller integrations. Each of the smaller integrations represents the same incremental integration since the curren... View full abstract»

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  • Resonance Commutated Thyristor dc Chopper Design Criteria

    Publication Year: 1968 , Page(s): 28 - 31
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (915 KB)  

    A procedure is developed for determining optimum values of the LC commutating circuit components in the resonance commutated thyristor dc switch or chopper circuit. Based on an approximate analysis of the circuit by Gutzwiller et al. [1], a more accurate expression is obtained in parametric form and solved graphically. With this solution, values for the series inductor and commutating capacitor ca... View full abstract»

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  • Power Servo Amplifier for Modulating Actuators

    Publication Year: 1968 , Page(s): 32 - 37
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    In modem processes the accurate positioning of damper drives and control valves is of prime importance. In order to fulfill these requirements this servo amplifier for the control of a dc motor was developed, resulting in a solid-state SCR output unit capable of being operated over a widerange of ambient and environmental conditions. In addition to high sensitivity and position accuracy,the amplif... View full abstract»

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  • A Simple Effective Current Regulator for Airport Lighting

    Publication Year: 1968 , Page(s): 37 - 40
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1019 KB)  

    Feedback regulators are well known for maintaining given parameters such as current, voltage, speed, torque, etc. Frequently the controlled variable is converted by a transducer to a direct voltage which is compared to a reference potential. This simple technique becomes difficult and/ or expensive in designing an alternating current regulator. The use of a magnetic amplifier to control the output... View full abstract»

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  • Temperature Control Combining Magnetic Logic with Silicon-Controlled Rectifiers

    Publication Year: 1968 , Page(s): 40 - 42
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    This paper describes a temperature control using SCR ON-OFF zero switching. The heart of the logic circuitry is a transformer wound on a square-loop core. It makes use of the basic constant-volt-second principle. The transformer performs the dual role of providing isolation from the sensor to the line and supplying isolated gate pulses to a pair of inverse parallel SCR's. It is designed to operate... View full abstract»

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  • A Study of the Effect of Variable-Frequency Operation on Induction Motor Stability

    Publication Year: 1968 , Page(s): 43 - 47
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1101 KB)  

    The transient performance of a polyphase induction motor is studied using an analog computer simulation of the dynamic equations. The study clearly demonstrates the frequency dependent nature of the induction motor stability. The problem is also investigated using root-locus techniques in order to show that a computer solution is required when accurate results are needed. View full abstract»

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  • Solid-State Power Supplies for Turbine Control and Instrumentation

    Publication Year: 1968 , Page(s): 47 - 50
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    A control system manufacturer reviews his applications of purchased solid-state power supplies (with emphasis on dc-to-ac inverters) and indicates areas that the customer and manufacturer of power supplies should stress in order to increase reliability. System reliability, in many cases, can be aided by clear specifications and an exploring engineering analysis of load characteristics and distribu... View full abstract»

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  • Contributors

    Publication Year: 1968 , Page(s): 51 - 52
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  • Information for authors

    Publication Year: 1968 , Page(s): 52
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Aims & Scope

This Transactions ceased production in 1981. The current retitled publication is IEEE Transactions on Industrial Electronics.

Full Aims & Scope