International Electrical Engineering Journal (IEEJ) Vol. 6 (2015) No.2, pp. 1756-1764
... equipment that is being supplied. What is good power quality for an electric motor may not be good enough for a personal computer. Usually the term power quality refers to maintaining a sinusoidal waveform of bus voltages at rated voltage and frequency [1]. Some remedies to these power quality probl ...
... equipment that is being supplied. What is good power quality for an electric motor may not be good enough for a personal computer. Usually the term power quality refers to maintaining a sinusoidal waveform of bus voltages at rated voltage and frequency [1]. Some remedies to these power quality probl ...
Elec467 Electric Machines and Transformers
... When the high voltage is stepped down, going from primary to secondary make values smaller Thus the primary losses when taken to the secondary are divided by a2. But bringing the secondary values to the primary side makes them bigger thus Zload and the secondary losses are multiplied by a2. ...
... When the high voltage is stepped down, going from primary to secondary make values smaller Thus the primary losses when taken to the secondary are divided by a2. But bringing the secondary values to the primary side makes them bigger thus Zload and the secondary losses are multiplied by a2. ...
1. Introduction - About the journal
... Ideally, it is required that the pair of transistors Q7-Q8 and Q9-Q10 are closely matched and the current mirrors CM3, CM4 and CM5 have the exact unity gain. Consequently, for vY vX 0, the quiescent currents through Q6, Q8 and Q10, Q12 are respectively equal to the quiescent current of the diode ...
... Ideally, it is required that the pair of transistors Q7-Q8 and Q9-Q10 are closely matched and the current mirrors CM3, CM4 and CM5 have the exact unity gain. Consequently, for vY vX 0, the quiescent currents through Q6, Q8 and Q10, Q12 are respectively equal to the quiescent current of the diode ...
CS5171BSTEVB CS5171/3 3.3 V to 5.0 V/ 400 mA Boost Regulator
... The high integration level of the CS5171 minimizes the external component count to 10. A high-frequency oscillator built into CS5171 allows the use of all surface mount components, greatly reducing the size and height of the circuit. Using a TTL-compatible pulse train, one can increase and synchroni ...
... The high integration level of the CS5171 minimizes the external component count to 10. A high-frequency oscillator built into CS5171 allows the use of all surface mount components, greatly reducing the size and height of the circuit. Using a TTL-compatible pulse train, one can increase and synchroni ...
Electrical Traction Sytsem
... The design of the air servo motor is such that once the selector arm begins its movement, it can be stopped only at the required tap (not in between two taps). The connection between the inner or outer ring to the transformer is being established by means of a contactor. www.igvfsonlineedu.in ...
... The design of the air servo motor is such that once the selector arm begins its movement, it can be stopped only at the required tap (not in between two taps). The connection between the inner or outer ring to the transformer is being established by means of a contactor. www.igvfsonlineedu.in ...
Direction of Current Flow
... . It is an arrow and a line perpendicular to the wire line. I have added plus and minus signs so that you will know how the diode should be connected to a battery to allow current to flow. The arrow part of the symbol represents the direction of allowed current flow. The perpendicular line can be th ...
... . It is an arrow and a line perpendicular to the wire line. I have added plus and minus signs so that you will know how the diode should be connected to a battery to allow current to flow. The arrow part of the symbol represents the direction of allowed current flow. The perpendicular line can be th ...
New Concept for Class D Audio Amplifiers for
... audio applications, where output filters and heatsinks are larger parts of the system and bandwidth is typically below 20 kHz, as compared to ultrasonic transducers with higher working frequencies. The proposed D-inductor concept can also be utilized in other applications, for example a solar invert ...
... audio applications, where output filters and heatsinks are larger parts of the system and bandwidth is typically below 20 kHz, as compared to ultrasonic transducers with higher working frequencies. The proposed D-inductor concept can also be utilized in other applications, for example a solar invert ...
Optimization of a Chem-E-Car - Rutgers University School of
... for a suitable alternative energy source is greater than ever. To explore the utility of household products as unconventional yet efficient energy sources, a car powered entirely by chemical reactions was built. Fuel cell batteries of varying salinity, pH, and designs were built and tested while a s ...
... for a suitable alternative energy source is greater than ever. To explore the utility of household products as unconventional yet efficient energy sources, a car powered entirely by chemical reactions was built. Fuel cell batteries of varying salinity, pH, and designs were built and tested while a s ...
REVIEW OF UPQC CONTROL TECHNIQUES FOR POWER
... and shunt active filter connected to the common link. Loads such as diode or thyristor bridge rectifier draws a highly inductive nature loads at the point of common coupling (PCC). These can compensate by shunt APF connected with the load and loads such as diode bridge rectifier with high dc capacit ...
... and shunt active filter connected to the common link. Loads such as diode or thyristor bridge rectifier draws a highly inductive nature loads at the point of common coupling (PCC). These can compensate by shunt APF connected with the load and loads such as diode bridge rectifier with high dc capacit ...
AD8682
... currents. The slew rate is typically 9 V/μs with a supply current under 250 μA per amplifier. These unity-gain stable amplifiers have a typical gain bandwidth of 3.5 MHz. The JFET input stage ensures bias current is typically a few picoamps and below 125 pA maximum over the full temperature operatin ...
... currents. The slew rate is typically 9 V/μs with a supply current under 250 μA per amplifier. These unity-gain stable amplifiers have a typical gain bandwidth of 3.5 MHz. The JFET input stage ensures bias current is typically a few picoamps and below 125 pA maximum over the full temperature operatin ...
N43068385
... distortion and uninterrupted power to loads such as computer, communication system, and medical support system etc. nowadays, increasing in the demand of using nonlinear load caused by the serious problem of power quality and the disturbance are dominated by the electronic loads. A single phase four ...
... distortion and uninterrupted power to loads such as computer, communication system, and medical support system etc. nowadays, increasing in the demand of using nonlinear load caused by the serious problem of power quality and the disturbance are dominated by the electronic loads. A single phase four ...
Control of Harmonics in 6-Pulse Rectifiers
... Harmonics are always present in electrical power systems. Harmonic distortion is harmless as long as its level is within the limit. However, with the recent rapid advancement of power electronics, i.e. non linear loads, the use of the variable speed drives are increasing day by day. Harmonics produc ...
... Harmonics are always present in electrical power systems. Harmonic distortion is harmless as long as its level is within the limit. However, with the recent rapid advancement of power electronics, i.e. non linear loads, the use of the variable speed drives are increasing day by day. Harmonics produc ...
Applications of Power Electronics in Automotive Power
... holds when the field decay process is sufficiently slow that rotor eddy currents are not important. A practical consideration that is not widely appreciated is the effect of rotor eddy currents on the duration of the load dump transient. If, for example, one instantaneously removes the field current ...
... holds when the field decay process is sufficiently slow that rotor eddy currents are not important. A practical consideration that is not widely appreciated is the effect of rotor eddy currents on the duration of the load dump transient. If, for example, one instantaneously removes the field current ...
LM334 datasheet
... 1V/µS. Slew rates of more than 1V/µS do not damage the circuit nor do they produce high currents. THERMAL EFFECTS Internal heating can have a significant effect on current regulation for an Iset above 100µA. For example, each increase of 1V in the voltage across the LM134 at Iset = 1mA will increase ...
... 1V/µS. Slew rates of more than 1V/µS do not damage the circuit nor do they produce high currents. THERMAL EFFECTS Internal heating can have a significant effect on current regulation for an Iset above 100µA. For example, each increase of 1V in the voltage across the LM134 at Iset = 1mA will increase ...
FEB109-001 User`s Guide 300 Watt Power Factor Corrected Supply
... The ML4821 Evaluation Board contains both high impedance/low level and low impedance/high level circuits. Because of this, careful attention must be used for component placement, grounding, and PC trace routing. The ML4821 uses a ground plane with power components (Q1, C17, R4) placed so as not to i ...
... The ML4821 Evaluation Board contains both high impedance/low level and low impedance/high level circuits. Because of this, careful attention must be used for component placement, grounding, and PC trace routing. The ML4821 uses a ground plane with power components (Q1, C17, R4) placed so as not to i ...
A New Pulse Duty Cycle Control Method with Pulse Frequency
... capacitive-discharging turn-on switching loss Po,,,(,).The maximum PON in a DCM flyback converter is the same as the PoN in A ccm flyback converter. Single-Stage PFC is generally an AC/DC converter with inherent power factor correction function.[1]The energy storage capacitor is necessary in the Sin ...
... capacitive-discharging turn-on switching loss Po,,,(,).The maximum PON in a DCM flyback converter is the same as the PoN in A ccm flyback converter. Single-Stage PFC is generally an AC/DC converter with inherent power factor correction function.[1]The energy storage capacitor is necessary in the Sin ...
sample questions - Department of Electrical Engineering, IIT
... (i) Calculate the current drawn from the supply and the power factor, (ii) if the excitation is reduced by 10% supplying the same load, find the current drawn from the supply and the power factor. ...
... (i) Calculate the current drawn from the supply and the power factor, (ii) if the excitation is reduced by 10% supplying the same load, find the current drawn from the supply and the power factor. ...
Mercury-arc valve
A mercury-arc valve or mercury-vapor rectifier or (UK) mercury-arc rectifier is a type of electrical rectifier used for converting high-voltage or high-current alternating current (AC) into direct current (DC). It is a type of cold cathode gas-filled tube, but is unusual in that the cathode, instead of being solid, is made from a pool of liquid mercury and is therefore self-restoring. As a result, mercury-arc valves were much more rugged, long-lasting and could carry much higher currents than most other types of gas discharge tube.Invented in 1902 by Peter Cooper Hewitt, mercury-arc rectifiers were used to provide power for industrial motors, electric railways, streetcars, and electric locomotives, as well as for radio transmitters and for high-voltage direct current (HVDC) power transmission. They were the primary method of high power rectification before the advent of semiconductor rectifiers, such as diodes, thyristors and gate turn-off thyristors (GTOs) in the 1970s.