IOSR Journal of Electronics and Communication Engineering (IOSR-JECE)
... rectifier outputs. The impedance matching method is well known technique for delta connected static VAR compensator (SVC) which is widely used in arc furnaces and now apply for reactive power compensation and load balancing. Since the SVC systems having thyristor controlled reactor (TCR) and fixed c ...
... rectifier outputs. The impedance matching method is well known technique for delta connected static VAR compensator (SVC) which is widely used in arc furnaces and now apply for reactive power compensation and load balancing. Since the SVC systems having thyristor controlled reactor (TCR) and fixed c ...
Linear Voltage regulators
... The required input step down transformer is bulky and expensive Due to low line frequency(50Hz), large values of filter capacitors are required The efficiency is low Input must be greater than the output voltage As large is the difference between input and output voltage, more is the power dissipati ...
... The required input step down transformer is bulky and expensive Due to low line frequency(50Hz), large values of filter capacitors are required The efficiency is low Input must be greater than the output voltage As large is the difference between input and output voltage, more is the power dissipati ...
High Efficiency Unity Power Factor Compact Fluorescent Lamp with
... required in order to provide sufficient voltage for proper lamp ignition and to stabilize lamp current once the lamp arc is established. To provide a compact and lightweight solution for CFLs, high-frequency electronic ballasts operating at higher frequency than 25 kHz are more suitable than magneti ...
... required in order to provide sufficient voltage for proper lamp ignition and to stabilize lamp current once the lamp arc is established. To provide a compact and lightweight solution for CFLs, high-frequency electronic ballasts operating at higher frequency than 25 kHz are more suitable than magneti ...
Electrostatic Potential and Capacitors 2 ) Find the charge on 4uF
... c) In a certain region 0.1 m3 of space, electric potential is found to be 5V throughout. What is the electric field in this region? [1] d) Write down the dimensional formula of potential? [1] 13 Two charges 3C and - 3C are placed at points A and B 6 cm apart. a) Identify an equipotential surface ...
... c) In a certain region 0.1 m3 of space, electric potential is found to be 5V throughout. What is the electric field in this region? [1] d) Write down the dimensional formula of potential? [1] 13 Two charges 3C and - 3C are placed at points A and B 6 cm apart. a) Identify an equipotential surface ...
RFN-420cL Radio Frequency Node
... WARNING To comply with FCC RF exposure compliance requirements, the antenna used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons and must not be co-located or operate in conjunction with any other antenna or transmitter. As such, the radio c ...
... WARNING To comply with FCC RF exposure compliance requirements, the antenna used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons and must not be co-located or operate in conjunction with any other antenna or transmitter. As such, the radio c ...
File
... and discharge through the lower 1k resistor, producing a long positive interval and short negative interval which brightens the lamp to near full intensity. The duty cycle of the 200Hz square wave can be varied from approximately 5% to 95%. The two circuits below show how to connect the lamp to eith ...
... and discharge through the lower 1k resistor, producing a long positive interval and short negative interval which brightens the lamp to near full intensity. The duty cycle of the 200Hz square wave can be varied from approximately 5% to 95%. The two circuits below show how to connect the lamp to eith ...
Design of a Low Cost Servo Controlled Voltage
... Excessive voltage variations are highly dangerous for the sophisticated Electrical and Electronic Equipment such as electro-medical equipment, computers, communication equipment & systems, process controllers etc [1]. This equipment requires a specified contact stabilized voltage source for their de ...
... Excessive voltage variations are highly dangerous for the sophisticated Electrical and Electronic Equipment such as electro-medical equipment, computers, communication equipment & systems, process controllers etc [1]. This equipment requires a specified contact stabilized voltage source for their de ...
chapter 6 - voltage regulator
... output is of opposite polarity of the input. This is achieved by VL forward-biasing reverse-biased diode during the off times producing current and charging the capacitor for voltage production during the off times. With switching regulators 90% efficiencies can be achieved. ...
... output is of opposite polarity of the input. This is achieved by VL forward-biasing reverse-biased diode during the off times producing current and charging the capacitor for voltage production during the off times. With switching regulators 90% efficiencies can be achieved. ...
Copyright 2002 American Institute of Physics. This
... with the gap parameter clearly lies at larger voltages and larger current bias than those currently available in our measurements. Other than immediately following the application of a pulse, any identification of the energy gap with the voltage at which dI/dV becomes infinite is therefore very unsa ...
... with the gap parameter clearly lies at larger voltages and larger current bias than those currently available in our measurements. Other than immediately following the application of a pulse, any identification of the energy gap with the voltage at which dI/dV becomes infinite is therefore very unsa ...
The Intellivolt brochure
... First generation fixed step-down voltage optimisation mechanical parts, to get appreciably closer to a systems reduce voltage by a set amount, typically steady 220V. Fourth generation VO, of which iVolt 4 to 8%. Second generation units see voltage being is the only example, is an intelligent variabl ...
... First generation fixed step-down voltage optimisation mechanical parts, to get appreciably closer to a systems reduce voltage by a set amount, typically steady 220V. Fourth generation VO, of which iVolt 4 to 8%. Second generation units see voltage being is the only example, is an intelligent variabl ...
JOURNAL HEWLETT-PACKARD
... frequency of oscillation of the cir frequency-determining network will The above phase shift effects occur cuit is inversely proportional to the contribute a phase shift +A# (Fig in the oscillator itself. Ordinarily, an capacity C in the frequency-deter ure 3). In the usual multi-range os isolating ...
... frequency of oscillation of the cir frequency-determining network will The above phase shift effects occur cuit is inversely proportional to the contribute a phase shift +A# (Fig in the oscillator itself. Ordinarily, an capacity C in the frequency-deter ure 3). In the usual multi-range os isolating ...
TEP Coil in the AC circuit with Cobra3 TEP Coil in the AC circuit with
... When coils are connected in parallel or in series, care should be taken to ensure that they are sufficiently far apart, since their magnetic fields influence one another. As in Task 3, use the "Survey Function" for the measurement of phase displacements and plot the tangent of phase displacement as ...
... When coils are connected in parallel or in series, care should be taken to ensure that they are sufficiently far apart, since their magnetic fields influence one another. As in Task 3, use the "Survey Function" for the measurement of phase displacements and plot the tangent of phase displacement as ...
Chapter 6: Single Phase Transformer
... changing voltage and current levels in electric power systems. matching source and load impedances for maximum power transfer in electronic and control circuitry. electrical isolation (isolating one circuit from another or isolating dc while maintaining ac continuity between two circuits). ...
... changing voltage and current levels in electric power systems. matching source and load impedances for maximum power transfer in electronic and control circuitry. electrical isolation (isolating one circuit from another or isolating dc while maintaining ac continuity between two circuits). ...
MIC5255 - uri=media.digikey
... The MIC5255 is a high performance, high bandwidth device. Therefore, it requires a well-bypassed input supply for optimal performance. A 1µF capacitor is required from the input to ground to provide stability. Low-ESR ceramic capacitors provide optimal performance at a minimum of space. Additional h ...
... The MIC5255 is a high performance, high bandwidth device. Therefore, it requires a well-bypassed input supply for optimal performance. A 1µF capacitor is required from the input to ground to provide stability. Low-ESR ceramic capacitors provide optimal performance at a minimum of space. Additional h ...
TSDMRX-5W EVM user guide V2.0
... Wireless power transfer is, essentially, a transformer. Power is provided to a primary coil which produces an electromagnetic (EM) field. In this field, a secondary coil is placed. The EM field induces a current into the secondary coil, providing power to whatever it is connected to. However, unlike ...
... Wireless power transfer is, essentially, a transformer. Power is provided to a primary coil which produces an electromagnetic (EM) field. In this field, a secondary coil is placed. The EM field induces a current into the secondary coil, providing power to whatever it is connected to. However, unlike ...
Paper Title (use style: paper title)
... temperature. Future evaluations will include feedback from the Vsat probe to the switching controller, which can stop the gate signal in case of device overheating and degradation. In Operation in discontinuous-conduction mode (DCM) was not addition to developing thermal simulations and adding a lim ...
... temperature. Future evaluations will include feedback from the Vsat probe to the switching controller, which can stop the gate signal in case of device overheating and degradation. In Operation in discontinuous-conduction mode (DCM) was not addition to developing thermal simulations and adding a lim ...
Lab 4: Multisim and the Oscilloscope
... Make sure the display for both channels A and B is toggled on. Adjust the two channels to have the same scale. Adjust the timebase so that we can see 2 or 3 periods of the signals. Select Single to freeze the scope so that we can work with it. Below the screen the scope displays the root-mean-square ...
... Make sure the display for both channels A and B is toggled on. Adjust the two channels to have the same scale. Adjust the timebase so that we can see 2 or 3 periods of the signals. Select Single to freeze the scope so that we can work with it. Below the screen the scope displays the root-mean-square ...
ANT-916-JJB-HT-x Data Sheet
... calculated by measuring the voltage wave that is headed toward the load versus the voltage wave that is reflected back from the load. A perfect match will have a VSWR of 1:1. The higher the first number, the worse the match, and the more inefficient the system. Since a perfect match cannot ever be o ...
... calculated by measuring the voltage wave that is headed toward the load versus the voltage wave that is reflected back from the load. A perfect match will have a VSWR of 1:1. The higher the first number, the worse the match, and the more inefficient the system. Since a perfect match cannot ever be o ...
Spark-gap transmitter
A spark-gap transmitter is a device that generates radio frequency electromagnetic waves using a spark gap.Spark gap transmitters were the first devices to demonstrate practical radio transmission, and were the standard technology for the first three decades of radio (1887–1916). Later, more efficient transmitters were developed based on rotary machines like the high-speed Alexanderson alternators and the static Poulsen Arc generators.Most operators, however, still preferred spark transmitters because of their uncomplicated design and because the carrier stopped when the telegraph key was released, which let the operator ""listen through"" for a reply. With other types of transmitter, the carrier could not be controlled so easily, and they required elaborate measures to modulate the carrier and to prevent transmitter leakage from de-sensitizing the receiver. After WWI, greatly improved transmitters based on vacuum tubes became available, which overcame these problems, and by the late 1920s the only spark transmitters still in regular operation were ""legacy"" installations on naval vessels. Even when vacuum tube based transmitters had been installed, many vessels retained their crude but reliable spark transmitters as an emergency backup. However, by 1940, the technology was no longer used for communication. Use of the spark-gap transmitter led to many radio operators being nicknamed ""Sparks"" long after they ceased using spark transmitters. Even today, the German verb funken, literally, ""to spark,"" also means ""to send a radio message or signal.""