A Review of Carrier Based Modulation Techniques
... inverter. Inverters convert the incoming DC into AC and also step up the resulting AC to the needed voltage level with the help of a transformer. Pulse-width modulation (PWM) is one of the efficient methods of controlling the output of the inverters. It helps in achieving output of inverter which is ...
... inverter. Inverters convert the incoming DC into AC and also step up the resulting AC to the needed voltage level with the help of a transformer. Pulse-width modulation (PWM) is one of the efficient methods of controlling the output of the inverters. It helps in achieving output of inverter which is ...
CC1000 Brochure
... A unique UHF RF Transceiver The CC1000 is a true single-chip UHF transceiver designed for very low power consumption and low voltage operation. Based on a pure 0.35 μm CMOS technology, the CC1000 RF transceiver offers a unique combination of low cost and high integration, performance and flexibility ...
... A unique UHF RF Transceiver The CC1000 is a true single-chip UHF transceiver designed for very low power consumption and low voltage operation. Based on a pure 0.35 μm CMOS technology, the CC1000 RF transceiver offers a unique combination of low cost and high integration, performance and flexibility ...
Piezotron® Coupler
... excitation required by low impedance, voltage mode sensors with built-in electronics (i.e. Piezotron®, PiezoBeam®, K-Shear®, and Ceramic Shear) or for high impedance sensors with an external impedance converter. Sensor power is supplied by the same 2-wire cable that provides the low impedance output ...
... excitation required by low impedance, voltage mode sensors with built-in electronics (i.e. Piezotron®, PiezoBeam®, K-Shear®, and Ceramic Shear) or for high impedance sensors with an external impedance converter. Sensor power is supplied by the same 2-wire cable that provides the low impedance output ...
chap02_dc machines_230107
... that produce the main flux in the machines. The magnetic field of the field winding is approximately sinusoidal, thus AC voltage is induced in the armature winding as the rotor turns under the magnetic field of stator. The COMMUTATOR and BRUSH combination converts the AC generated voltages to DC. ...
... that produce the main flux in the machines. The magnetic field of the field winding is approximately sinusoidal, thus AC voltage is induced in the armature winding as the rotor turns under the magnetic field of stator. The COMMUTATOR and BRUSH combination converts the AC generated voltages to DC. ...
BASIC ELECTRONIC COMPONENTS
... Types: There are two types of standard transistors, NPN and PNP, with different circuit symbols. The letters refer to the layers of semiconductor material used to make the transistor. Most transistors used today are NPN because this is the easiest type to make from silicon. The leads are labeled bas ...
... Types: There are two types of standard transistors, NPN and PNP, with different circuit symbols. The letters refer to the layers of semiconductor material used to make the transistor. Most transistors used today are NPN because this is the easiest type to make from silicon. The leads are labeled bas ...
III. DFIG-Based Wind Turbine Control
... problem is that standard controllers designed for reliable operation around nominal voltage levels will not work as designed during low network voltages that can occur during a fault. A consequence of this is greatly increased currents, which may lead to converter failure. Achieving ride-through req ...
... problem is that standard controllers designed for reliable operation around nominal voltage levels will not work as designed during low network voltages that can occur during a fault. A consequence of this is greatly increased currents, which may lead to converter failure. Achieving ride-through req ...
Embedded Control of Solid-State Lighting Systems
... Embedded PWM Circuit • The main part of our project is the come up with ways to do PWM using a microcontroller integrated circuit (IC) and software control. • There are many ways to do this, some of which are quite advanced. • We will do it the easiest, and simplest way! • Simple but it works! ...
... Embedded PWM Circuit • The main part of our project is the come up with ways to do PWM using a microcontroller integrated circuit (IC) and software control. • There are many ways to do this, some of which are quite advanced. • We will do it the easiest, and simplest way! • Simple but it works! ...
Pixie II v5.1 40 m QRP xcvr Kit
... antenna. CW stations from EU could be heard and tuned with potentiometer W1. Now, where did I put that straight key that I used 40 years ago? ...
... antenna. CW stations from EU could be heard and tuned with potentiometer W1. Now, where did I put that straight key that I used 40 years ago? ...
Semiconductor Devices - 2014 Lecture Course Part of
... because of size, speed and cost. • The cost for processing, before the encapsulation step, is per wafer, not per device – the more dies the better. • The yield, limited by local (point defects), is increased on the die level. There is less off-cutting and the relative area necessary for processing d ...
... because of size, speed and cost. • The cost for processing, before the encapsulation step, is per wafer, not per device – the more dies the better. • The yield, limited by local (point defects), is increased on the die level. There is less off-cutting and the relative area necessary for processing d ...
17-PN-Junction
... Turn on the temperature control unit and set the temperature switch to 25 oC. The power supply for the p-n junction has two independent outputs and two independent voltage control knobs for forward and reverse operation respectively. Connect the leads from the junction to the "FWD VOLT" output jacks ...
... Turn on the temperature control unit and set the temperature switch to 25 oC. The power supply for the p-n junction has two independent outputs and two independent voltage control knobs for forward and reverse operation respectively. Connect the leads from the junction to the "FWD VOLT" output jacks ...
Dr. K.P Ray SAMEEER, Mumbai
... Reactance provided by the tube capacitance Xc = j Zo tan (2/) L The length 'L' of the tuned co-axial line is given by: L = /2 tan-1 Xc / Zo Where = wavelength in cm Xc = reactance due to the inter-electrode capacitance Zo = characteristic impedance of the line (ohm) The 50 ohm matching point t ...
... Reactance provided by the tube capacitance Xc = j Zo tan (2/) L The length 'L' of the tuned co-axial line is given by: L = /2 tan-1 Xc / Zo Where = wavelength in cm Xc = reactance due to the inter-electrode capacitance Zo = characteristic impedance of the line (ohm) The 50 ohm matching point t ...
High-Voltage goes Vacuum
... Outstanding technical performance and low life cycle costs of vacuum circuit breakers make this solution the preferred technology in power networks up to 52 kV. Based on 40 years of experience producing medium voltage vacuum interrupters and more than 3 million delivered units, Siemens is now introd ...
... Outstanding technical performance and low life cycle costs of vacuum circuit breakers make this solution the preferred technology in power networks up to 52 kV. Based on 40 years of experience producing medium voltage vacuum interrupters and more than 3 million delivered units, Siemens is now introd ...
STK730-080
... Built-in error detection circuit Built-in overcurrent protection circuit Product series differentiated by output capacity (110 to 280 W) Few external components required Since the STK730-080 supports higher oscillator frequencies, smaller pulse transformers can be used. Takes all major national stab ...
... Built-in error detection circuit Built-in overcurrent protection circuit Product series differentiated by output capacity (110 to 280 W) Few external components required Since the STK730-080 supports higher oscillator frequencies, smaller pulse transformers can be used. Takes all major national stab ...
A Wide Locking Range Differential Colpitts Injection
... • The main concern for the frequency divider design is large locking range with low power consumption. • For high speed and low power operation LC-tank ILFD is the most suitable one among various types of frequency dividers because operating frequency is determined by the resonant frequency. • The I ...
... • The main concern for the frequency divider design is large locking range with low power consumption. • For high speed and low power operation LC-tank ILFD is the most suitable one among various types of frequency dividers because operating frequency is determined by the resonant frequency. • The I ...
Technical Teaching Equipment
... 11.- Power factor influence with the speed variations and analysis of the possible solutions to automate the regulation of the power factor. 12.- Active power compensation by mean capacitor banks and electrical measurement of the electrical machine response. Other possibilities to be done with this ...
... 11.- Power factor influence with the speed variations and analysis of the possible solutions to automate the regulation of the power factor. 12.- Active power compensation by mean capacitor banks and electrical measurement of the electrical machine response. Other possibilities to be done with this ...
Microcontroller based substation monitoring and control system
... Advanced Substation monitoring and control system ...
... Advanced Substation monitoring and control system ...
Flying-Capacitor-Based Chopper Circuit for DC Capacitor Voltage
... and capacitors but of reduced voltage rating compared with the conventional chopper. Two configurations of this topology, named as three-level and fourlevel choppers, are analyzed for generalization purposes. These are different in capacitor and semiconductor device count and correspondingly reduce ...
... and capacitors but of reduced voltage rating compared with the conventional chopper. Two configurations of this topology, named as three-level and fourlevel choppers, are analyzed for generalization purposes. These are different in capacitor and semiconductor device count and correspondingly reduce ...
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.