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Lecture 6
Lecture 6

... Resistivity and hence line resistance increase as conductor temperature increases (changes is about 8% between 25C and 50C) Because ACSR conductors are stranded, actual resistance, inductance and capacitance needs to be determined from tables. ...
Line Conductors
Line Conductors

... Resistivity and hence line resistance increase as conductor temperature increases (changes is about 8% between 25C and 50C) Because ACSR conductors are stranded, actual resistance, inductance and capacitance needs to be determined from tables. ...
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... The board has the added flexibility of allowing the user to incorporate transformers on its input and output. This capability can be especially useful when connecting to single-ended test equipment. Because both input and output transformers have dual, nested footprints, the user can select from a w ...
LM833-N 数据资料 dataSheet 下载
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... functional, but do not guarantee specific performance limits. Electrical Characteristics state DC and AC electrical specifications under particular test conditions which guarantee specific performance limits. This assumes that the device is within the Operating Ratings. Specifications are not guaran ...
Fuji Electric PXR3 Temperature Controller Brochure
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... Absolute alarm, deviation alarm, zone alarm with upper and lower limits for each Hold function available (see figure below) Alarm latch function provided Delay setting 0 to 9999 sec settable in 1 sec steps Alarm ON-delay Process alarm output Relay contact: SPST contact: 220 V AC/30 V DC, 1 A (resist ...
Constructing circuit diagrams with pst-circ
Constructing circuit diagrams with pst-circ

... This case comes up frequently, for example, in the equivalent circuit for a real capacitor, so pst-circ provides extra options for it. Figure 5 shows a simple example with all the options including those in the preceding examples (but without repetition of the code already presented). The idea is th ...
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Bus Edison Fuse Rating Guide

... circuits unless D-C application ratings are provided by the fuse manufacturer. Except for some special purpose fuses, D-C ratings are not usually shown on fuse labels. EDISON Time/Current Curves, Peak Let-Through Curves are based on 60 Hertz A-C data. The operating frequency (Hertz) will affect fuse ...
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A Capacitance-Compensation Technique for Improved Linearity in CMOS Class-AB Power Amplifiers
A Capacitance-Compensation Technique for Improved Linearity in CMOS Class-AB Power Amplifiers

... Fig. 7 shows plots of and of the sum , for the NMOS and PMOS deand vices of Figs. 2 and 6. As shown, while both vary with the NMOS gate-source voltage, the sum remains roughly constant. The small ripple that occurs in the sum at the transition point arises because the capacitances do curve is not ex ...
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Class D Audio Amplifier Board - TDA7492 User`s

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... different loading scenarios have been investigated and critical factors identified through various studies [2, 5]. In this paper, we present a study of the vector control of an autonomous induction generator taking the saturation effects into account. The output voltage of the induction generator pa ...
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... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. ...
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... Input pins of an IC are often connected to the gate of a MOS transistor. The gate has extremely high impedance and extremely low capacitance. If left unconnected, the electric field from the outside can easily charge it. The small charge acquired in this way is enough to produce a significant effect ...
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... but with certain power limitations. The optimal efficiency is achieved with about 1.5 Ohm. The battery holder is powered up by consecutive fast pressing of the button for 1 to 5 times, see extended functions menu (Oc “On clicks”). With continued pressing of the button the user steps through the prog ...
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JG8T-060912 - Electronic Weighing Services

... The analogue to digital function is performed by a Cirrus logic CS5532 device which features 24 bit resolution and contains all analogue amplification and digital conditioning as instructed by the microcontroller interface. The part is configured to provide bipolar measurement within a common mode v ...
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... a) Explain speed-current, torque-current, speed-torque characteristics of a DC series motor. b) Prove that in a dc generator, generated e.m.f and current in a conductor are in the same direction, whereas in a dc motor, generated e.m.f opposes the flow of current in a conductor. (7M+8M) a) How is 4-p ...
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ON THE WAY TO PULSE

... I 2 =0.6 A, and voltmeter indicates V2 =220 V (Fig. 13). As a result, power realized by the pulse generator (3) and the cell (1) will be P1 =220x0.60=132 W. In this case, energy effectiveness of the cell of the water electric generator of heat will be less than a unit (31000/300=103.3)/132=0.78 taki ...
Shunt reactor switching transients at high compensation levels
Shunt reactor switching transients at high compensation levels

... Equation 1 consist of two parts, the first is the forced response which is due to the driving AC source, the second part consisting of the exponential term is defined as the natural response of the circuit. This term is the transient term that exists to compensate for the effect that the current thr ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE) e-ISSN: 2278-1676,p-ISSN: 2320-3331,
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE) e-ISSN: 2278-1676,p-ISSN: 2320-3331,

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... amplifier with a very wide input common mode range. The LT6105 monitors unidirectional current via the voltage across an external sense resistor. The input common mode range extends from –0.3V to 44V, with respect to the negative supply voltage (V –). This allows the LT6105 to operate as a high side ...
Evaluates:  MAX16834 MAX16834 Evaluation Kit General Description Features
Evaluates: MAX16834 MAX16834 Evaluation Kit General Description Features

... LED- PCB pads. Resistor R5 and potentiometer R17 set the external LEDs’ maximum average current to 1A by adjusting the voltage at the MAX16834 REFI input. Vary the MAX16834’s REFI voltage using potentiometer R17 to adjust the LEDs’ brightness. LED brightness increases when the voltage at REFI is inc ...
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Rectifier



A rectifier is an electrical device that converts alternating current (AC), which periodically reverses direction, to direct current (DC), which flows in only one direction. The process is known as rectification. Physically, rectifiers take a number of forms, including vacuum tube diodes, mercury-arc valves, copper and selenium oxide rectifiers, semiconductor diodes, silicon-controlled rectifiers and other silicon-based semiconductor switches. Historically, even synchronous electromechanical switches and motors have been used. Early radio receivers, called crystal radios, used a ""cat's whisker"" of fine wire pressing on a crystal of galena (lead sulfide) to serve as a point-contact rectifier or ""crystal detector"".Rectifiers have many uses, but are often found serving as components of DC power supplies and high-voltage direct current power transmission systems. Rectification may serve in roles other than to generate direct current for use as a source of power. As noted, detectors of radio signals serve as rectifiers. In gas heating systems flame rectification is used to detect presence of a flame.Because of the alternating nature of the input AC sine wave, the process of rectification alone produces a DC current that, though unidirectional, consists of pulses of current. Many applications of rectifiers, such as power supplies for radio, television and computer equipment, require a steady constant DC current (as would be produced by a battery). In these applications the output of the rectifier is smoothed by an electronic filter (usually a capacitor) to produce a steady current.More complex circuitry that performs the opposite function, converting DC to AC, is called an inverter.
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