Abstract: Partial table of contents: LEARNING THE LANGUAGE. Fundamental Concepts. Linear Resistive Networks. Dependent Sources. Operational Amplifiers. Capacitance and Inductance. ELECTRONIC DEVICES. Electrical Conduction Processes. Diode Circuits and Applications. Physical Electronics of Transistors. Large-Signal Transistor Circuits. Small-Signal Models and Circuits. LINEAR CIRCUITS AND SYSTEMS. Linear System Response. Frequency Response in Linear Systems. Signal-Processing in Linear Systems. APPLICATIONS.

Abstract: A compact, self-contained, light-weight, easily programmable, desk-top analog computer, capable of being perpetually updated as new components and improved circuits are available. Unlike other such computers, the program panel is a combination patching, switching and electronic module board and includes all of the coefficient-setting potentiometers, voltmeters, function and mode control switches, and spare terminal strips for additional passive and active analog and digital logic circuits. Because of its small size and low cost, it could be more readily used as an aid to motivate high school and college students to study high mathematics, physics, electronics and automatic control systems. Unlike the pocket-sized digital computers, this computer provides both transient and steady-state solutions to differential equations which can be observed on an oscilloscope or graphically plotted on an x-y recorder receiving signals from computer modules. The reduction in size and weight is accomplished with the aid of integrated linear and nonlinear circuits and other subminiature components. Thus, the analog computing circuits for integrating, summing, differentiation, limiting, multiplication and division are simplified. Simplification in programming a differential equation and/or implementation by direct simulation from a functional block diagram is accomplished through a novel arrangement of parts, components, switches, jacks and diagrams to enable even the beginner to make interconnections rapidly and without the confusion sometimes associated with other analog and hybrid computers. Amplifiers may be zeroed for null voltage offset as on other analog computers. The mode controls include reset, hold, and compute as on other analog computers. Opportunity exists for introducing passive compensation or filter circuits for enhancing the stability of a control system more quickly and without tying up any operational amplifiers. This is not easily done on other analog computers. To further expedite implementing a problem on the computer panel, the user has a choice between using patch cords, toggle switches or a combination of the two, a feature not found on other analog computers. A feature worthy of merit is that none of the components need be soldered. Therefore, each is easily replaceable by others. In addition, the final preferred embodiment has been so designed that even a blind person can program a problem easily by feel. Because of the combination of visual and audio sound effects, solutions to differential equations will have added meaning to the student in mathematics, electronics and physics, contributing to his retention of objectives and purposes of the study.

Abstract: A second generation automotive speed control system using electronic circuits to perform the necessary logic and memory functions is described. Important considerations, such as performance and environmental factors, are discussed in relation to their design implications. Component function and system operation are covered using generalized circuit concepts. The unique Philco-Ford electronic speed control system is described in detail.

Abstract: A high-efficiency, low-cost D.C. to A.C. electronic inverter generates sinusoidal ouptut voltage(s) by utilization of an oscillator and divider circuitry that generates extremely precise symmetrical control signals. These control signals cause a push-pull amplifier comprising power switch drive transistors to periodically alternately energize power switches comprising two banks of matched output transistors, that in turn generate high current inputs to a ferro-resonant transformer. The transformer is tuned to provide the desired output sinusoidal voltage. The inverter incorporates unique overload and short-circuit protection electronics that prevent catastrophic destruction of the power switch drive transistors as well as the power switch transistors. Furthermore, to maximize the inverter's efficiency, the power switch driving circuit receives electrical energy from the ferro-resonant transformer in order to insure deep saturation of the power switch transistors. In addition, the push-pull amplifier incorporates further electronics for preventing driving of the power switch drive transistors during failure in the oscillator or divider circuitry.

Abstract: This paper is a brief review of progress made toward a usable PTE technology at the Naval Undersea Center, Hawaii. It focuses especially on two of the current problem areas: power transistors and hybrid circuits. Results of COSMOS testing are also included. In earlier tests on plastic encapsulated power transistors a dominant failure mode, cracking of the transistor chip, was identified. Its cause was determined and methods were developed to identify devices subject to this failure mode. Currently, metal hermetic-cased power transistors are being opened and subjected directly to the pressurization liquid. Types tested include single, double, and triple diffused mesas, epitaxials and planars. Three fluids are used: a hydrocarbon oil, Shell Tellus 15; a silicone oil, Dow Coming DC 200-20; and a fluorinert chemical, 3M FC43. Two problems in using hybrid circuitry for pressure tolerant electronics were voids in the substrate-to-header bond and the deformation of the hybrid package. How these problems were solved is covered, as are methods to fill and seal hybrid packages.

Abstract: • A submitted manuscript is the author's version of the article upon submission and before peer-review. There can be important differences between the submitted version and the official published version of record. People interested in the research are advised to contact the author for the final version of the publication, or visit the DOI to the publisher's website. • The final author version and the galley proof are versions of the publication after peer review. • The final published version features the final layout of the paper including the volume, issue and page numbers.

Abstract: An m.i.c. f.e.t. amplifier was tested at ambient temperatures varying, from 20 to −85°C. A gain increase of 3 dB and noise figure decrease of 1.9 dB were measured over that temperature range.

Abstract: Thin film and thick film circuits represent two important and high volume applications of gold in the electronics industry. This article reviews the techniques used in these fields by one major manufacturer to meet the requirements of high performance, small size and reliability.

Abstract: This paper will present a technique for simulation of large circuit configurations using circuit level modeling which converts integro-differential equations to simple algebraics. A configuration of 1300 interconnected FET logic circuits has been analyzed using this approach.

Abstract: A simple, high-performance operational amplifier using an economical monolithic CMOS/bipolar process will be described, and circuit components, layout and performance discussed.

Abstract: This paper indicates the market for a van-type electric vehicle, provides the physical description, and presents the electrical principle of operation of a frequency modulated and pulsewidth modulated power system applied to a 27-kW three-phase squirrelcage age induction motor. This ac drive system, which represents the third generation in design, has been placed in a Dodge B-300 high production van of 2700 kg gross vehicle weight. The electrical energy is stored in 24 6-V 220-Ah batteries providing 144 V. Design speeds of the electronics for the vehicle are up to 90 km/h. Computer developed power factor and efficiency curves are given for the motor for the entire range of operating speeds. Electrical charge in the batteries may be replaced either by quick interchange of batteries a or through utilization of a 12-kg on-board charger with an electrical demand of 6 kW from a 220-V single-phase main. Finally, the paper discusses the economics of the ac drive LinearVan.

Abstract: The design of holographic acoustic imaging systems using hydrophone arrays at the Naval Undersea Center has led to the development of special signal processing electronics which will be described in detail. The tolerances on electronic component values in this circuit, the major noise sources in the circuit, and other properties of an imaging system will be used to calculate the expected imaging performance of a holographic imaging system, as measured by its image dynamic range. An alternative version of the circuit will also be discussed, analyzed, and compared with the original circuit. Finally, an analogy between the signal processing circuit and a cross-correlator will be made, indicating possible future developments.

Abstract: A discussion of the automotive industry's reluctance to implement new electronics applications, this paper examines the basis on which design engineers accept or reject automotive electronics designs. Unless these new designs demonstrate economic or other advantages over designs emanating from traditional technology, they will be rejected. However, there are now several areas of uncontested electronic application: fuel metering, emissions/diagnostics, antiskid, radio, headlamp dimmer, and seat interlock. A careful cost effectiveness study of future implementation of electronic systems is recommended.

Abstract: An electronic circuit for automatically controlling gain and roll-off in wide-band amplifiers for use in tele-distribution systems including a feedback network with a negative temperature coefficient pure ohmic resistance feedback. When automatically controlling roll-off, a second negative temperature coefficient resistance is placed in series with an inductance.

Abstract: In volume 7, chapter 3 the significance of electrical technology and electronics for precision engineering products has been explained. This chapter reviews applications of electrical technology and electronics in production.

Abstract: The use of recent electronic devices such as linear IC (especially operational amplifiers), digital IC and various modules used to interface, are described for electrochemical applications. Those devices are treated as a ‘black box’, so that most chemists can use them as functional elements to construct various systems with no consideration of their inner principles. The present paper is divided into two parts ; the first half deals with analogue electronics and the second half with digital electronics. Analogue electronics is arranged in the following sections : 1) Analogue electronics as control elements. The basic principle of an operational amplifier is illustrated and then as an example of control use, a new electrolysis which is more general than usual chronopotentiometry or chronoamperometry is described, where the electrode potential and the current is controlled simultaneously. 2) Linear processing of analogue signals. Several simulation techniques are cited and criticized from a view point of laboratory use. CSDT (continuous space and discrete time) method and transfer function method are recommended as the simulation techniques for electrode processes. 3) Non-linear processing of analogue signals. An irreversible electode process including non-linear elements as exponential terms is cited and its simulator is given. 4) Analog switch. The principle of analogue switch is illustrated and application of it such as switching correlator and signal modulator are described. In last section of analogue electronics, promising devices such as phase-locked loop amplifier and photo-coupler as an isolator are described briefly. In digital electronics part, the importance of the knowledge for hardware is emphasized and several reasons for digitalization in measurements are interpreted. Then, the fundamentals of digital electronics are outlined briefly, assuming no previous knowledge of electronics. The operation of RS-flip-flow is given onsiderable space for understanding of the higher devices such as counters and shiftregisters. After fundamentals, digital electronics for polarographic applications are described as follows : 1) Long-period integrator for coulombmeter. The combination of V-f converter and counter is recommended as a digital coulombmeter in electrochemistry. 2) Signal generator. The use of digital IC as a signal generator is illustrated. Astable mutivibrator and monostable multivibrator are illustrated. Double-pulse generator is cited as the typical example of electrochemical use. Maximum-period signal generator is introduced as a pseudorandom signal generator. 3) Digital memory. Digital memory device for transient recording is illustrated. The device was constructed from ADC (10bit resolution and successive approximation type), DAC (10bit), MOS dynamic shift registers (10×1024 bit) and some gates for read/write control. The device was applied to electrochemical system to facilitate the correlation techniques. Typical results are illustrated. Possible use of the device is discussed. 4) Microcomputer. The use of one-chip c.p.u. for microcomputer organization isdiscussed. The possible construction of microprocesser in laboratory is described.