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7872A Data Sheet 08_29_12 Rev 2.fm
7872A Data Sheet 08_29_12 Rev 2.fm

... Maxwell Technologies’ 7872A high-speed 14-bit ADC microcircuit features a greater than 100 krad (Si) total dose tolerance; depending upon orbit. The 7872A consists of a track/ hold amplifier, successive-approximation ADC, 3V buried Zener reference and versatile interface logic. It features a selfcon ...
MADRCC0006, MADR-009151-000DIE Single Driver for GaAs FET Switches and Attenuators  Features
MADRCC0006, MADR-009151-000DIE Single Driver for GaAs FET Switches and Attenuators Features

... AC Characteristics Over Guaranteed Operating Range6 ...
DAC1218 DAC1219 12-Bit Binary Multiplying D/A Converter (Rev. A)
DAC1218 DAC1219 12-Bit Binary Multiplying D/A Converter (Rev. A)

Paper - World Academy of Science, Engineering and
Paper - World Academy of Science, Engineering and

... The H-bridge arrangement is generally used to reverse the polarity of the motor, but can also be used to 'brake' the motor, where the motor comes to a sudden stop, as the motor's terminals are shorted, or to let the motor 'free run' to a stop, as the motor is effectively disconnected from the circui ...
Performance analysis of Effects of Parasitic Elements on the
Performance analysis of Effects of Parasitic Elements on the

800mA Low Dropout Positive Regulator with Current Source and
800mA Low Dropout Positive Regulator with Current Source and

DRV8881 - Texas Instruments
DRV8881 - Texas Instruments

... The DRV8881 is a bipolar stepper or brushed-DC motor driver for industrial applications. The device output stage consists of two N-channel power MOSFET H-bridge drivers. The DRV8881 is capable of driving up to 2.5-A peak current or 1.4-A rms current per H-bridge (with proper PCB ground plane for the ...
Powering a Dust Mote from a Piezoelectric Transducer
Powering a Dust Mote from a Piezoelectric Transducer

EE-35 - International Journal of Advance Research and Innovation
EE-35 - International Journal of Advance Research and Innovation

... balancing of real and reactive power drawn from the supply, for better voltage profile. In large fluctuation the voltage support is required. In recent years static Var compensation like STATCOM and SVC developed. The SVC and STATCOM having special property to absorbed and generate the reactive powe ...
Loop and Nodal Analysis and Op Amps
Loop and Nodal Analysis and Op Amps

... The kilowatt-hours (kWh) to a customer is measured with a kWh meter corresponding to the average power consumed over a period of time. (Energy Charge) The cost/rate of the kWh may vary depending on when the power is used (high vs. low demand), and how much total power has been consumed (cost may go ...
Product Information - Sterling Power USA
Product Information - Sterling Power USA

... A very common commercial vehicle setup would include having an appliance battery in the rear and a starter battery in the engine bay and connecting them with a Pro Charge B. Can be used to charge 12V, 24V or 36V battery, from the 12V vehicle starter. ...
LNK520GN Datasheet - Mouser Electronics
LNK520GN Datasheet - Mouser Electronics

... • Home appliances, white goods and consumer electronics • Constant output current LED lighting applications • TV standby and other auxiliary supplies ...
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JV2416961699

... controlled oscillators used in PLL, Current starved VCO and Differential VCO [1].In recent years LC tank oscillators have shown good phase-noise performance with low power consumption. However, there are some disadvantages. First, the tuning range of an LC-oscillator (around 10 - 20%) is relatively ...
Ventilation Structure Improvement of Air-cooled
Ventilation Structure Improvement of Air-cooled

... exploitation of the materials and the highest performance of the machine [2]. Furthermore, the thermal analysis of induction motors, due to the complexity of air course and the influence of rotation upon air-flow, cannot be accurately evaluated by using traditional lumped circuits together with empi ...
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Reliable Protection for systems, generators and motors up to 1600 A
Reliable Protection for systems, generators and motors up to 1600 A

... C series with 36 kA short-circuit breaking capacity and nominal current from 20 - 500 A are the correct choice for the most frequently used standard applications. The decisive factor for the level of the short-circuit current in the most widely used low-voltage radial networks is the capacity of the ...
ADI Gas Detector Solution Based on NDIR and PID
ADI Gas Detector Solution Based on NDIR and PID

... concentration is proportional to the amount of IR light absorbed. The advantages of an NDIR detector are high sensitivity, long operating life, reduced maintenance, safety, and reliability. The main disadvantage of NDIR is its high price. NDIR gas detectors are commonly employed in the detection of ...
TMC603A Datasheet
TMC603A Datasheet

... Its integrated support for sine commutation saves cost and allows for maximum drive efficiency. The external microcontroller realizes commutation and control algorithms. Based on the position information from an encoder or hall sensors, the microcontroller can do block commutation or sine commutatio ...
Lecture 8 - Effect of source inductance on rectifier operation
Lecture 8 - Effect of source inductance on rectifier operation

... Lecture 8 - Effect of source inductance on rectifier operation Ideal VS real rectifier with source inductance The output DC voltages of the rectifier circuits discussed so far have been found by assuming that diode currents transfer (commutate) from one diode to another instantaneously. However this ...
MAX5058/MAX5059 Parallelable Secondary
MAX5058/MAX5059 Parallelable Secondary

Electronic Instrumentation Project 1 Instrumented Beakman`s Motor
Electronic Instrumentation Project 1 Instrumented Beakman`s Motor

... expression can be written as F = IL × B = ILB sin α , where I is the current, L is the length of the wire (This can be expressed as a vector by multiplying it by the unit vector in the direction of the current flow), and α is the angle between the wire and the magnetic field. There is quite a good d ...
File lm4780 | allcomponents.ru
File lm4780 | allcomponents.ru

Brochure power generators
Brochure power generators

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PPT: 555 - godinweb

... demonstrate the operations of: 555 as an astable: charge cycle 555 as an astable: discharge cycle ...
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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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