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Chapter 1 - Introduction to Electronics
Chapter 1 - Introduction to Electronics

... Figure 1.14 (a) An amplifier transfer characteristic that shows considerable nonlinearity. (b) To obtain linear operation the amplifier is biased as shown, and the signal amplitude is kept small. Observe that this amplifier is operated from a single power supply, VDD. ...
Digital Integrated Circuits – Logic Families (Pt.I)
Digital Integrated Circuits – Logic Families (Pt.I)

... (2) Propagation delay (tpd) ; Delay time in going from low to high logic or high to low logic ( tpLH & tpHL) tpd =( tpLH +tpHL) /2 In BJT tpLH > tpHL (Due to reverse recovery) In FET tpLH < tpHL (Due to large capacitance) Typical 15 ns (for TTL) ...
S03-Switching Transients Abstract
S03-Switching Transients Abstract

... voltage is the result of the system configuration and breaker characteristics. When this voltage has a frequency component near one of the natural frequencies of the transformer, and is of sufficient magnitude and duration, damage to the internal insulation structure of the transformer may result. T ...
2SC2347 TV UHF Oscillator Applications TV VHF Mixer Applications Maximum Ratings
2SC2347 TV UHF Oscillator Applications TV VHF Mixer Applications Maximum Ratings

... · TOSHIBA is continually working to improve the quality and reliability of its products. Nevertheless, semiconductor devices in general can malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical stress. It is the responsibility of the buyer, when utilizing TOS ...
Limited Availability Product
Limited Availability Product

General Info Sheet - Hoyme Manufacturing Inc
General Info Sheet - Hoyme Manufacturing Inc

... Suffix ‘H’ for Heat; ‘F’ for Flue Please note that the nomenclature of damper ID is not limited to this sample shown. For complete information, please refer to the Hoyme web page at www.hoyme.com and follow the links. INTERFACE RELAY ADAPTORS are also manufactured by Hoyme and approved to interconne ...
technical manual (PDF 59k)
technical manual (PDF 59k)

... If the engine slows down due to either an overload on the alternator or a mechanical fault in the engine, the exciter field voltage will increase. The same applies if the engine speed remains constant whilst the alternator is overloaded due to excessive current being drawn, or a very low power facto ...
Electromagnetic interference at the mains ports of an
Electromagnetic interference at the mains ports of an

... characterized at RF, but common mode impedances such as are presented by cables or the stray reactance of mechanical structures are essentially unpredictable. Practically, cables have been found to have common mode impedances in the region of 100 Ω to 400Ω, except at resonance, and a figure of 150Ω ...
CIRCUIT FUNCTION AND BENEFITS
CIRCUIT FUNCTION AND BENEFITS

... interface and on linearization techniques for the ADC results see Application Note AN-0970 and Circuit Note CN-0075. Power requirements for the circuit depend on whether the module is powered directly from the 4 mA-to-20 mA loop supply or actively from a 4-wire loop where the module is powered separ ...
A Single-Stage Low-Dropout Regulator with a Wide Dynamic Range
A Single-Stage Low-Dropout Regulator with a Wide Dynamic Range

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BU931P

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MAX16977 36V, 2A, 2.2MHz Step-Down Converter with Low Operating Current General Description
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... while using only 30FA quiescent current at no load. The switching frequency is adjustable from 1MHz to 2.2MHz by an external resistor and can be synchronized to an external clock. The output voltage is pin selectable to be 5V fixed or adjustable from 1V to 10V. The wide input voltage range along wit ...
HQ-170 Manual
HQ-170 Manual

... be rotated very slowly throughout its range, observing the S meter. It will be found that one particular spot throughout the range of the slot depth control a further reduction in the S meter reading will be obtained. Once this setting has been obtained, the slot depth control may be left permanentl ...
Prognostic and Warning System for Power-Electronic Modules in Electric, Hybrid Electric,
Prognostic and Warning System for Power-Electronic Modules in Electric, Hybrid Electric,

... developed to indicate the potential quilt-on-road risk. This algorithm is based on monitoring the abnormal VCEsat variation at the specific current and temperature conditions. The basic idea is as follows: an IGBT will be considered as being seriously “degraded” if its measured VCEsat deviates more ...
Bias Resistor Transistor
Bias Resistor Transistor

... the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters ...
PQube 3 Specifications
PQube 3 Specifications

RFVC1843 数据资料DataSheet下载
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... is available in a low cost 5mm x 5mm surface mount plastic overmolded QFN outline. ...
A9, B7 - Vicphysics
A9, B7 - Vicphysics

... 3. You will need to change the alternating supply to a frequency of 0.5 Hz and a maximum voltage of 0.5 volt. 4. You will also need to add two probes and a graph to show the voltage. 5. Change the time base on the graph to 10 seconds. 6. Sketch (or copy) a graph of the red and blue voltages. 7. Chan ...
Recall Lecture 11
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5MS/s Power Analyzer
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... PZ4000 are calculated based on voltage, current, and active power. (However, reactive power is measured directly during harmonic measurement.) Therefore, during distorted wave input, there may be a difference between these values and those of other measuring instruments based on different measuremen ...
AP8803 Description Pin Assignments
AP8803 Description Pin Assignments

... This rising current produces a voltage ramp across RSET. The internal circuit of the AP8803 senses the voltage across RSET and applies a proportional voltage to the input of the internal comparator. When this voltage reaches an internally set upper threshold, the internal switch is turned off. The i ...
LTC1757A-1/LTC1757A-2 - Single/Dual Band
LTC1757A-1/LTC1757A-2 - Single/Dual Band

... amplifier to close the RF power control loop. The RF pin input resistance is typically 185Ω and the frequency range of this pin is 850MHz to 2000MHz. The detector demonstrates excellent efficiency and linearity over a wide range of input power. The Schottky detector is biased at about 60µA and drive ...
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Efficiency

... the efficiency is always less than one. In the case of a.c. machines the rating is expressed in terms of apparent power. It is nothing but the product of the applied voltage and the current drawn. The actual power delivered is a function of the power factor at which this current is drawn. As the rea ...
MAGNE-SONICS® SERIES 200 Vibrating tuning fork Liquid level
MAGNE-SONICS® SERIES 200 Vibrating tuning fork Liquid level

... 200 Series has a status indicating ‘heart-beat’ LED which can be seen at all times through a lens in the cover. The LED will flash (once per second) when the 200 Series is ‘off’ and will be constantly lit when the 200 Series is ‘on’. The LED gives an indication that the 200 Series is functioning cor ...
ADN4662 数据手册DataSheet 下载
ADN4662 数据手册DataSheet 下载

... (1.2 V + [310 mV/2]) = 1.355 V, and the inverting receiver input (1.2 V − [310 mV/2]) = 1.045 V for Logic 1. For Logic 0, the inverting and noninverting input voltages are reversed. Note that because the differential voltage reverses polarity, the peak-to-peak voltage swing across RT is twice the di ...
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Variable-frequency drive



A variable-frequency drive (VFD) (also termed adjustable-frequency drive, variable-speed drive, AC drive, micro drive or inverter drive) is a type of adjustable-speed drive used in electro-mechanical drive systems to control AC motor speed and torque by varying motor input frequency and voltage.VFDs are used in applications ranging from small appliances to the largest of mine mill drives and compressors. However, around 25% of the world's electrical energy is consumed by electric motors in industrial applications, which are especially conducive for energy savings using VFDs in centrifugal load service, and VFDs' global market penetration for all applications is still relatively small. That lack of penetration highlights significant energy efficiency improvement opportunities for retrofitted and new VFD installations.Over the last four decades, power electronics technology has reduced VFD cost and size and has improved performance through advances in semiconductor switching devices, drive topologies, simulation and control techniques, and control hardware and software.VFDs are available in a number of different low- and medium-voltage AC-AC and DC-AC topologies.
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