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Programmable Dual 12-Bit Digital-to-Analog
Programmable Dual 12-Bit Digital-to-Analog

Manual - Lesman Instrument
Manual - Lesman Instrument

... An example shown below compares typical results from steel blocks used as targets on a wheel (either ferrous or non-ferrous). As shown, a larger detection range can typically be achieved when there is a ferrous object behind the target. The WM100 provides excellent detection of a relatively small ta ...
STC03DE220HV
STC03DE220HV

... The STC03DE220HV is manufactured in a hybrid structure, using dedicated high voltage bipolar and low voltage MOSFET technologies, aimed to providing the best performance in ESBT topology. The STC03DE220HV is designed for use in aux flyback SMPS for any three phase application. ...
投影片 1
投影片 1

... With equipment containing many solid-state devices, such an approach is impossible. Nonlinear loads are switched on for only part of the cycle, as in a thyristor-controlled circuit, or pulsed, as in a controlled-rectifier circuit. Non-linear loads with high harmonic pollution E.g. drives, UPS’s, wel ...
09106 Manual
09106 Manual

... Given proper care, the Wind Monitor should provide years of service. The only components likely to need replacement due to normal wear are the precision ball bearings. Only a qualified instrument technician should perform the replacement. If service facilities are not available, return the instrumen ...
LT3800 - Linear Technology
LT3800 - Linear Technology

... The LT3800 is a high input voltage range step-down synchronous DC/DC converter controller IC that uses a 200kHz constant frequency, current mode architecture with external N-channel MOSFET switches. The LT3800 has provisions for high efficiency, low load operation for battery-powered applications. Bu ...
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,

... security access system include; code based lock, keycard lock, thumb print scan, retina scan. They come in handy in security systems. Code based locking system is best suited in most applications because of its simplicity and reliability. Since the code based locking system is always resident in the ...
RM4TA02 - Schneider Electric
RM4TA02 - Schneider Electric

... Curve 2: Reduction factor k for inductive loads (applies to values taken from durability Curve 1) ...
WECC Solar Plant Dynamic Modeling Guidelines
WECC Solar Plant Dynamic Modeling Guidelines

... requirements and procedures. Under the existing WECC modeling guidelines 1 all PV power plants with aggregated capacity 20 MVA or larger must be modeled explicitly in power flow and dynamics. This means that these plants must not be load-netted or modeled as negative load. Manufacturer-specific dyna ...
AD8380 (REV. B) - Obsolete
AD8380 (REV. B) - Obsolete

... To prevent these problems, it is recommended that a series resistor of 25 Ω or greater be placed as close as possible to the AD8380’s video outputs. This will serve to substantially reduce the magnitude of the fault currents and protect the outputs from damage caused by intermittent short circuits. ...
electrical engineering practice lab manual
electrical engineering practice lab manual

... Tools required: Wire mans tool Kit-1 No. Precautions: 1. The metal covering of all appliances are to be properly earthed in order to avoid electrical shock due to leakage or failure of insulation. 2. Every line has to be protected by a fuse of suitable rating as per the requirement. 3. Handle with c ...
In this mode the PW is connected to the grid and the CW is short
In this mode the PW is connected to the grid and the CW is short

50mA-20A, Single-Supply, Low-Side or High
50mA-20A, Single-Supply, Low-Side or High

... Low-side Sensing and Poor Grounding Mentioned in Table (2), some low-side sensing configurations are susceptible to poor PCB layout, wiring issues and grounding issues. Figure (4) illustrates a simple low-side current sense circuit using only an operational amplifier to monitor the voltage developed ...
Option - PTC/RTC board
Option - PTC/RTC board

Benchmarking of Grid Fault Modes in Single-Phase Grid-Connected Photovoltaic Systems Zhixiang Zou
Benchmarking of Grid Fault Modes in Single-Phase Grid-Connected Photovoltaic Systems Zhixiang Zou

... Notably, in this control system, the existing current control methods, such as Proportional Resonant (PR), Deadbeat control (DB), Repetitive controller (RC) and Proportional Integral control (PI) which need a Park Transform (αβ → dq), can be adopted in faulty grid cases. The “Q Profile” shown in Fig. ...
LM334 datasheet
LM334 datasheet

... the sensor current before adjustment and line a’b’c’ represents the desired output. An adjustment of the gain provided at T2 will move the output from b to b’ and will correct the slope at the same time so that the output at T1 and T3 will be correct. This gain adjustment can be carried out by means ...
Measurement Techniques
Measurement Techniques

The Common Source JFET Amplifier - IDC
The Common Source JFET Amplifier - IDC

... Since the N-Channel JFET is a depletion mode device and is normally "ON", a negative gate voltage with respect to the source is required to modulate or control the drain current. This negative voltage can be provided by biasing from a separate power supply voltage or by a self biasing arrangement as ...
1.3.7 Measuring power factor
1.3.7 Measuring power factor

... currents, so other methods such as filters or active power factor correction are required to smooth out their current demand over each cycle of alternating current and so reduce the generated harmonic currents. In circuits having only sinusoidal currents and voltages, the power factor effect arises ...
REG1118 数据资料 dataSheet 下载
REG1118 数据资料 dataSheet 下载

... obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are sold subject to TI’s terms and conditions of sale supplied at the time of order acknowledgment. TI warrants performance of its hardware products to the speci ...
LT3507
LT3507

... If the RUN pins are tied to ground, the LT3507 is shut down and draws <1μA from the input source tied to VIN1. If any of the RUN pins are driven above 1V, the internal bias circuits turn on, including the internal regulator, reference, and master oscillator. Each switching regulator will only begin ...
Evaluates:  MAX8792 MAX8792 Evaluation Kit General Description Features
Evaluates: MAX8792 MAX8792 Evaluation Kit General Description Features

LVC608/LVC623 and LVC2016
LVC608/LVC623 and LVC2016

... We will remedy, at our sole discretion, any defect in materials or workmanship by repair, replacement, or refund. If a refund is elected, you must make the defective or malfunctioning component available to us free and clear of all liens or other encumbrances. The refund will be equal to the actual ...
III Sem
III Sem

... transformers, magnetizing harmonic currents and their effects,switching currents in transformers, inrush of magnetizing current.Three winding transformer. Three to six phase conversion.Excitation phenomenon in transformers, magnetizing harmonic currents and their effects,switching currents in transf ...
MTW10N100E Power MOSFET 10 Amps, 1000 Volts
MTW10N100E Power MOSFET 10 Amps, 1000 Volts

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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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