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Introduction to Laboratory Instruments
Introduction to Laboratory Instruments

IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)

REF191 数据手册DataSheet 下载
REF191 数据手册DataSheet 下载

... The REF19x series precision band gap voltage references use a patented temperature drift curvature correction circuit and laser trimming of highly stable, thin-film resistors to achieve a very low temperature coefficient and high initial accuracy. The REF19x series is made up of micropower, low drop ...
Discussion States - Carleton University
Discussion States - Carleton University

... S.M.M. Mishra, S.S.Rofail and K.S.Yeo, “Design of High Performance Double Edge-Triggered Flip-Flops,” IEEE Proc. Circuits Devices Syst., ...
Performance Validation
Performance Validation

... The posting of documents on this Web site is done for the convenience of market participants and other interested visitors to the IESO Web site. Please be advised that, while the IESO attempts to have all posted documents conform to the original, changes can result from the original, including chang ...
LM5117 Wide Input Range Synch Buck Controller w Analog Curr
LM5117 Wide Input Range Synch Buck Controller w Analog Curr

MT-038: Op Amp Input Bias Current
MT-038: Op Amp Input Bias Current

... It should be noted that rail-to-rail input stages comprised of two parallel stages have bias currents that change direction as the common-mode voltage passes through the transition region. Bias and offset currents for these devices are especially difficult to specify, other than simply giving a maxi ...
BD6046GUL
BD6046GUL

... ROHM designs and manufactures its Products subject to strict quality control system. However, semiconductor products can fail or malfunction at a certain rate. Please be sure to implement, at your own responsibilities, adequate safety measures including but not limited to fail-safe design against th ...
AP3156
AP3156

... disable time TOFF(max), then the AP3156 will be turned off and enters the shutdown mode. Setting the SDI pin switching from Low to High will re-enable the AP3156 and leave the shutdown mode. If the SDI pin is held on for a time duration over TSEP, then an end of a sequence (EOS) occurs with a number ...
FAN7083_GF085  High Side Gate Driver with Reset F
FAN7083_GF085 High Side Gate Driver with Reset F

... input. It is designed for high voltage and high speed driving of MOSFET or IGBT, which operates up to 600V. Fairchild's highvoltage process and common-mode noise cancellation technique provide stable operation in the high side driver under high-dv/dt noise circumstances. An advanced level-shift circ ...
Aerre2 Single Control Panel Technical Manual
Aerre2 Single Control Panel Technical Manual

... MIN.LINE/VOLTAGE" or "MAX.LINE/VOLTAGE" alarms are exceeded for 1 minute the pumps will shut down. SCREEN 16: “SENSOR/10b/20b” Select 10 Bar When all values are set, switch the main switch “OFF”, wait for a few seconds to memorise the data then switch “ON” The memorised data will be retained for up ...
ameritron - Gruppo Radio Firenze
ameritron - Gruppo Radio Firenze

... That could mean the differmounting by competing A 12 VDC keying relay makes ence between hearing, “You’re Q- amplifier companies requires special 811A tubes to retard sagging and shorting. it compatible with all solid state and 5 armchair copy” and “Sorry, Quiet, powerful computer grade blower draws ...
AC Sources - Operating 3.8.1  3.8  ELECTRICAL POWER SYSTEMS
AC Sources - Operating 3.8.1 3.8 ELECTRICAL POWER SYSTEMS

... performed to reestablish OPERABILITY provided an assessment determines the safety of the plant is maintained or enhanced. Credit may be taken for unplanned events that satisfy this SR. 2. ] If performed with EDG synchronized with offsite power, it shall be performed at a power factor ≤ 0.9. However, ...
Exercise 10.2 Torque Magnitude Ranking Task
Exercise 10.2 Torque Magnitude Ranking Task

Aalborg Universitet Power Control Flexibilities for Grid-Connected Multi-Functional Photovoltaic Inverters
Aalborg Universitet Power Control Flexibilities for Grid-Connected Multi-Functional Photovoltaic Inverters

Reducing the output filter of a Class-D amplifier
Reducing the output filter of a Class-D amplifier

Voltage Reference Circuits
Voltage Reference Circuits

... turns on when the supply is applied The supply rejection of the circuit typically degrades at high frequencies owing to the op amp’s rejection properties, often mandating “supply regulation” ...
weather proof intelli+® actuators
weather proof intelli+® actuators

... Choice of closing (on torque or on position), Choice of direction to close, Drive the actuator to the closed and the open position and validate the position. For certain valves, as an example gate valves equipped with back seat, INTELLI+ can automatically perform this setting: the actuator detect ...
as a PDF - University of Hertfordshire
as a PDF - University of Hertfordshire

... in our FPAA gives 2%–3% accuracy, depending on the chip unit and programmed filter frequency (not exceeding 300 kHz, because over this frequency parasitics of the switches significantly degrade the precision of the tuning). Thus the dominant factor is technology spread and better tuning can be achie ...
MAX961–MAX964/ MAX997/MAX999 Single/Dual/Quad, Ultra
MAX961–MAX964/ MAX997/MAX999 Single/Dual/Quad, Ultra

... The MAX961–MAX964/MAX997/MAX999 are low-power, ultra-high-speed comparators with internal hysteresis. These devices are optimized for single +3V or +5V operation. The input common-mode range extends 100mV Beyond-theRails™, and the outputs can sink or source 4mA to within 0.52V of GND and VCC. Propag ...
AAT3176A 数据资料DataSheet下载
AAT3176A 数据资料DataSheet下载

... lighting modes. Operating at a fast 1MHz switching frequency, the dual-mode (1x/2x) operation of the internal charge pump offers excellent power efficiency for both flash and movie modes and combined with a low external parts count (one 1μF flying capacitors and small bypass capacitors at VIN and OU ...
New 4.5 kV IGBT and diode chip set for HVDC
New 4.5 kV IGBT and diode chip set for HVDC

... The dynamic characteristics of the IGBT are typically described by a trade-off curve where the turn-off losses Eoff are plotted versus the forward voltage drop VCE(sat) (Fig. 6). The forward voltage VCE(sat) was changed by modification of the emitter efficiency. Within the desired VCE(sat) range the ...
SC620 - Semtech
SC620 - Semtech

... The SC620 also employs an adjustable global current gain setting register to allow the current setting step size to vary from 31.25μA to 500μA. This provides a wide range of options for LED variation and dimming functions. The maximum output is also scaled by this step size, with a maximum of 25mA a ...
Pdf - Text of NPTEL IIT Video Lectures
Pdf - Text of NPTEL IIT Video Lectures

... So first thing what we will notice is as you move along the Transmission Line this quantity L is positive because we are moving towards the generator so as I move towards the generator the phase becomes more and more negative so this quantity ( L - 2βl) phase becomes more and more negative or in te ...
APPLIED ELECTRONICS Outcome 2
APPLIED ELECTRONICS Outcome 2

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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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