
Power Flow Analysis
... conditions, this busbar type is more a mathematical requirement. It is needed to provide a ‘reference’ angle to which all other angles are referred. Also, this bus absorbs any real power mismatch across the system. (Note that it is not possible to specify the nett active power at all buses in the sy ...
... conditions, this busbar type is more a mathematical requirement. It is needed to provide a ‘reference’ angle to which all other angles are referred. Also, this bus absorbs any real power mismatch across the system. (Note that it is not possible to specify the nett active power at all buses in the sy ...
LT3506/LT3506A - Dual Monolithic 1.6A Step
... decrease the value of the inductor and operate with higher ripple current. This allows you to use a physically smaller inductor, or one with a lower DCR resulting in higher efficiency. Be aware that if the inductance differs from the simple rule above, then the maximum load current will depend on inp ...
... decrease the value of the inductor and operate with higher ripple current. This allows you to use a physically smaller inductor, or one with a lower DCR resulting in higher efficiency. Be aware that if the inductance differs from the simple rule above, then the maximum load current will depend on inp ...
RV-722 Voltage Divider User and Service Manual
... tarnishing. The three most significant decades use sealed switches. The switches have multiple-wiper contacts to provide stable, low contact resistance. High-quality, gold-plated, tellurium-copper binding posts minimize the thermal-emf effects which would artificially reflect a change in dc resista ...
... tarnishing. The three most significant decades use sealed switches. The switches have multiple-wiper contacts to provide stable, low contact resistance. High-quality, gold-plated, tellurium-copper binding posts minimize the thermal-emf effects which would artificially reflect a change in dc resista ...
ISL28233IUZ
... The RRIO CMOS amplifier uses parallel input PMOS and NMOS that enable the inputs to swing 100mV beyond either supply rail. The inverting and non-inverting inputs do not have back-to-back input clamp diodes and are capable of maintaining high input impedance at high differential input voltages. This ...
... The RRIO CMOS amplifier uses parallel input PMOS and NMOS that enable the inputs to swing 100mV beyond either supply rail. The inverting and non-inverting inputs do not have back-to-back input clamp diodes and are capable of maintaining high input impedance at high differential input voltages. This ...
Unified formulation of a family of iterative solvers for power systems
... Newton’s method is reduced to a sequence of decoupled linear problems for the voltage magnitude and phase angle, whose matrices are kept constant throughout the iterations. The theoretical background of this method has been elucidated from a mathematical viewpoint in subsequent works [15], [16]. A m ...
... Newton’s method is reduced to a sequence of decoupled linear problems for the voltage magnitude and phase angle, whose matrices are kept constant throughout the iterations. The theoretical background of this method has been elucidated from a mathematical viewpoint in subsequent works [15], [16]. A m ...
here
... there are also many modes where the system is snoozing or waiting for interaction with the user, e.g. stand-by mode or PDAmode. In these modes low power dissipation is the main challenge. Speed is of minor interest, as it is not needed or limited by other constraints like the handling of the user. H ...
... there are also many modes where the system is snoozing or waiting for interaction with the user, e.g. stand-by mode or PDAmode. In these modes low power dissipation is the main challenge. Speed is of minor interest, as it is not needed or limited by other constraints like the handling of the user. H ...
ON THE WAY TO PULSE
... I 2 =0.6 A, and voltmeter indicates V2 =220 V (Fig. 13). As a result, power realized by the pulse generator (3) and the cell (1) will be P1 =220x0.60=132 W. In this case, energy effectiveness of the cell of the water electric generator of heat will be less than a unit (31000/300=103.3)/132=0.78 taki ...
... I 2 =0.6 A, and voltmeter indicates V2 =220 V (Fig. 13). As a result, power realized by the pulse generator (3) and the cell (1) will be P1 =220x0.60=132 W. In this case, energy effectiveness of the cell of the water electric generator of heat will be less than a unit (31000/300=103.3)/132=0.78 taki ...
Aalborg Universitet after disconnection
... show that unbalance caused by other parameters than the self inductance will cause overvoltages if the mutual inductances are sufficiently large to transfer the different frequencies between the phases. Fig 16 shows the voltage waveform were the mutual inductance is multiplied with 100 and made equa ...
... show that unbalance caused by other parameters than the self inductance will cause overvoltages if the mutual inductances are sufficiently large to transfer the different frequencies between the phases. Fig 16 shows the voltage waveform were the mutual inductance is multiplied with 100 and made equa ...
Complete PDF Edition (2,171 KB)
... capability of information and communication systems, for which market demand is growing. Mobile communication devices require not only a high bit rate but also multi-functionality, better performance and low power consumption. Thus, high frequency power amplifiers for transmitters are required to ha ...
... capability of information and communication systems, for which market demand is growing. Mobile communication devices require not only a high bit rate but also multi-functionality, better performance and low power consumption. Thus, high frequency power amplifiers for transmitters are required to ha ...
VHF transistor power amplifiers
... The transistor should be mounted onto a large heatsink using thermal paste as illustrated in Fig 8. The surface of the board should be small to enable the fins of the cooler to be as close to the transistor as possible. To provide better cooling it is important to make sure that the hole drilled for ...
... The transistor should be mounted onto a large heatsink using thermal paste as illustrated in Fig 8. The surface of the board should be small to enable the fins of the cooler to be as close to the transistor as possible. To provide better cooling it is important to make sure that the hole drilled for ...
1-Front-Abstract
... Due to lack of compact models for OTFTs we have used alternate approaches to perform device and circuit simulations of OTFTs and they are discussed as second part of the work. One approach of circuit simulation of OTFTs was to extract equivalent SPICE (Simulation Program with Integrated Circuit Emph ...
... Due to lack of compact models for OTFTs we have used alternate approaches to perform device and circuit simulations of OTFTs and they are discussed as second part of the work. One approach of circuit simulation of OTFTs was to extract equivalent SPICE (Simulation Program with Integrated Circuit Emph ...
MAX5407 32-Tap Audio Logarithmic Taper Digital Potentiometer General Description
... switches that are digitally controlled through a simple 2wire serial interface. This device performs the same function as a mechanical potentiometer. The device has a fixed end-to-end resistance of 20kΩ and features zero-crossing detection to minimize the audible noise generated by the wiper transit ...
... switches that are digitally controlled through a simple 2wire serial interface. This device performs the same function as a mechanical potentiometer. The device has a fixed end-to-end resistance of 20kΩ and features zero-crossing detection to minimize the audible noise generated by the wiper transit ...
LM5072 - Texas Instruments
... 3. The PD interface and PWM controller accept power from auxiliary sources including AC adapters and solar cells in various configurations and over a wide range of input voltages. Auxiliary power input can be programmed to be dominant over PoE power. 4. DC current limit is programmable and adjustabl ...
... 3. The PD interface and PWM controller accept power from auxiliary sources including AC adapters and solar cells in various configurations and over a wide range of input voltages. Auxiliary power input can be programmed to be dominant over PoE power. 4. DC current limit is programmable and adjustabl ...
edms_tmp_1967707_DIQH_procedure - lhc-div-mms
... two voltage dividers across each group of 3 capacitors. The output of these dividers (+10V for the positive branch, -10V for the negative branch for Unom) is connected to two comparators (LM311) wired as Schmitt-triggers. The reference for these comparators is given by 10V reference of the Zener typ ...
... two voltage dividers across each group of 3 capacitors. The output of these dividers (+10V for the positive branch, -10V for the negative branch for Unom) is connected to two comparators (LM311) wired as Schmitt-triggers. The reference for these comparators is given by 10V reference of the Zener typ ...
Lab 2: Circuit Simulation
... Cite any sources you use for your report. Generally use past tense when describing what was done or what was observed. You can use present tense when talking about theory. Use passive verbs rather than active (i.e. "The circuit was constructed" rather than "I constructed the circuit"_). Avoid using ...
... Cite any sources you use for your report. Generally use past tense when describing what was done or what was observed. You can use present tense when talking about theory. Use passive verbs rather than active (i.e. "The circuit was constructed" rather than "I constructed the circuit"_). Avoid using ...
JUNG TRICK - Electronotes
... This note suggests that you can, however, use series connected resistors to collect the currents with two op-amps. For example, you can form a pair of VCAs or a voltagecontrolled cross fader. Things like that. ...
... This note suggests that you can, however, use series connected resistors to collect the currents with two op-amps. For example, you can form a pair of VCAs or a voltagecontrolled cross fader. Things like that. ...
DS2129 - Maxim Integrated
... Regulator 2, 0.75V Output. Decouple with a 4.7µF ceramic capacitor. ...
... Regulator 2, 0.75V Output. Decouple with a 4.7µF ceramic capacitor. ...
Si3402EV: Non-Isolated Evaluation Board for the Si3402
... self-heating, this condition is not a great concern. However, using a low ESR filter capacitor solves this problem (but requires some re-compensation of the feedback loop). The low ESR capacitor also improves load transient response and output ripple. ...
... self-heating, this condition is not a great concern. However, using a low ESR filter capacitor solves this problem (but requires some re-compensation of the feedback loop). The low ESR capacitor also improves load transient response and output ripple. ...
FEATURES FUNCTIONAL BLOCK DIAGRAM
... the on chip track-and-hold. The analog input channel to be converted is selected by using the address bits ADD3 through ADD0 of the control register. The address bits, in conjunction with the SEQ and SHADOW bits, allow the sequence register to be programmed. The input range for all input channels ca ...
... the on chip track-and-hold. The analog input channel to be converted is selected by using the address bits ADD3 through ADD0 of the control register. The address bits, in conjunction with the SEQ and SHADOW bits, allow the sequence register to be programmed. The input range for all input channels ca ...
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.