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What precisely is an electric arc? How does it ignite and what
What precisely is an electric arc? How does it ignite and what

max3221-max3243.pdf
max3221-max3243.pdf

... sense a valid signal level on their receiver inputs, the on-board power supply and drivers shut down. This occurs if the RS-232 cable is disconnected or if the transmitters of the connected peripheral are turned off. The system turns on again when a valid level is applied to any RS-232 receiver inpu ...
KB020
KB020

... at the same potential as the frame they are mounted on. A s the pole mounting frame is generally tied to ground for safety reasons, the tank of the capacitor units in a pole mounted rack will always be at ground potential. On one bushing capacitors the tank is electrically tied to the capacitor neut ...
BQ24765 数据资料 dataSheet 下载
BQ24765 数据资料 dataSheet 下载

... The bq24765 features Dynamic Power Management (DPM) and input power limiting. These features reduce battery charge current when the input power limit is reached to avoid overloading the AC adaptor when supplying the load and the battery charger simultaneously. A high-accuracy current sense amplifier ...
Project_Report_KamChong
Project_Report_KamChong

Evaluates: MAX8633–MAX8636 MAX8633 Evaluation Kit General Description Features
Evaluates: MAX8633–MAX8636 MAX8633 Evaluation Kit General Description Features

... kit operates from a 2.7V to 5.5V input supply, is configured for 2.8V (OUT1) and 1.8V (OUT2), and can deliver up to 300mA at each output. The MAX8633 outputs can be set to 9 different output voltage settings. See the Output Voltage Settings section. The MAX8633 EV kit can also evaluate the MAX8634, ...
- Wiley Online Library
- Wiley Online Library

... procedure for deriving the actual power factors and harmonic distortions.) Fortunately, it is possible to compensate for unity power factor in both the buck and the boost converter. Suppose the duty cycle is reserved for some mandatory control function, e.g. voltage regulation in the case of single- ...
Description ZXGD3102T8
Description ZXGD3102T8

... 1. The detector monitors the MOSFET Drain-Source voltage. 2. At system start up, the MOSFET body diode is forced to conduct current from the input power supply to the load and there is approximately -0.6V on the Drain pin. 3. The detector outputs a positive voltage with respect to ground, this volta ...
DDC, CDC, SMS Series: Zero Bias Silicon Schottky Barrier Detector Diodes Applications Features
DDC, CDC, SMS Series: Zero Bias Silicon Schottky Barrier Detector Diodes Applications Features

... input VSWR is required. In this circuit, low VSWR is accomplished by the use of the 50 Ω terminating resistor. Sensitivity, however, is degraded by typically 10 dB from the multi-octave, high-sensitivity circuit. The most common use for this circuit is in a broadband, flat detector used primarily in ...
Introducing Hardware
Introducing Hardware

... home theater audio system, providing digital output and the best signal quality. A FireWire port (also called an IEEE 1394 port, pronounced “I-triple-E 1394 port”) is used for high-speed multimedia devices such as digital camcorders. A universal serial bus (USB) port can be used by many different in ...
LT3952 - 60V LED Driver with 4A Switch Current
LT3952 - 60V LED Driver with 4A Switch Current

... The input current sense amplifier reduces the switching current in the case of an overload. VC is reduced when the IVINP-IVINN voltage exceeds the 60mV built-in potential. Tie IVINP-IVINN across an external sense resistor to set auxiliary current limit. If unused, tie to VIN. IVINP (Pin 6): Auxiliar ...
LT3952 - 60V LED Driver with 4A Switch Current
LT3952 - 60V LED Driver with 4A Switch Current

final project report ee3390 electronic circuits design lab power inverter
final project report ee3390 electronic circuits design lab power inverter

... We initially considered an H-bridge to be the solution to the problem as these can often be used with pulse-width modulating systems. After further review however we have already gone through the trouble of making a sine wave (the stage after the PWM), and so an H-bridge would have been very challen ...
CRTE Power Capacitors
CRTE Power Capacitors

... • Low voltage detuned/tuned Capacitor Banks. Damping of Inrush Current Capacitors used for power factor correction have to withstand a lot of switching operations. The switching of a capacitor in parallel with energized capacitor banks, produces extremely high inrush currents and voltage transients. ...
General Description Features and Benefits
General Description Features and Benefits

... Dual ORing, Single Hot-Swap Controller with Accurate Current Monitoring ...
4-Channel SDTV Video Amplifier with 6th
4-Channel SDTV Video Amplifier with 6th

... clamp option for CVBS, Y', and G'B'R' signals with sync. AC-coupled biasing for C'/P'B/P'R channels can easily be achieved by adding an external resistor to VS+. The THS7375 is the perfect choice for all video buffer applications. Its rail-to-rail output stage with 5.6-V/V gain allows for both ac an ...
MAX5150/MAX5151 Low-Power, Dual, 13-Bit Voltage-Output DACs with Serial Interface _______________General Description
MAX5150/MAX5151 Low-Power, Dual, 13-Bit Voltage-Output DACs with Serial Interface _______________General Description

... lockout, a separate reference voltage input for each DAC that accepts AC and DC signals, and an activelow clear input (CL) that resets all registers and DACs to zero. These devices provide a programmable logic pin for added functionality, and a serial-data output pin for daisy-chaining. ...
Micrologic P fonctionnement
Micrologic P fonctionnement

... A periodic signal is a combination of :  The original sinusoidal signal at the fundamental frequency  Other sinusoidal signals (the harmonics) with frequencies that are whole-number multiples of the fundamental frequency  A DC component, where applicable ...
High Frequency Conducted Disturbances
High Frequency Conducted Disturbances

Solving Challenges in Industrial Applications
Solving Challenges in Industrial Applications

... Across the broad spectrum of industrial applications, ranging from video surveillance to manufacturing automation, there are a few common trends that drive the need for industrial-optimized semiconductor devices. First, there is a shift from point- to-point data transfer to network-based communicati ...
Bus Edison Fuse Rating Guide
Bus Edison Fuse Rating Guide

... Fuses designed to U.S.A. standards are tested for proper ampere ratings at 25 degrees Centigrade. Since fuses operate by heat melting fuse elements, the ampere ratings can change for higher or lower ambient temperature (temperature of air around an enclosure in which fuses are installed). The follow ...
Type CP Reverse Phase Relay Instruction Leaflet
Type CP Reverse Phase Relay Instruction Leaflet

... Mount the relay vertically by means of the rear mounting stud or studs for the type FT projection case or by means of the four mounting holes on the flange for the semi-flush type FT case. Either the stud or the mounting screws may be utilized for grounding the relay. External toothed washers are pr ...
OWNER/INSTALLER INSTRUCTION MANUAL ET100
OWNER/INSTALLER INSTRUCTION MANUAL ET100

PCM185x: 24-Bit 96-kHx Stereo A/D Converter w/6 x 2
PCM185x: 24-Bit 96-kHx Stereo A/D Converter w/6 x 2

... analog front end that consists of a 6-stereo-input multiplexer and wide-range PGA. The PCM1850/1851 includes a delta-sigma modulator with 64-times oversampling, a digital decimation filter and a low-cut filter that removes the dc component of the input signal. For various applications, the PCM1850/1 ...
MAX1807/MAX1808 Micropower Adjustable Overvoltage Protection Controllers General Description
MAX1807/MAX1808 Micropower Adjustable Overvoltage Protection Controllers General Description

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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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