Harmonic Analysis of 6-Pulse and 12-Pulse Converter Models
... century, but it was inefficient due to the power loss in conductors. Alternating current (AC) offered much better efficiency, since it could easily be transformed to higher voltages, with far less loss of power. AC technology was soon accepted as the only feasible technology for generation, transmis ...
... century, but it was inefficient due to the power loss in conductors. Alternating current (AC) offered much better efficiency, since it could easily be transformed to higher voltages, with far less loss of power. AC technology was soon accepted as the only feasible technology for generation, transmis ...
Nuclear magnetic resonance - I. Physikalisches Institut
... to adjust the height. Set the modulation frequency of the magnetic field to about 20 Hz and the modulation amplitude to 1 V. Adjust the sensitivity of the oscillograph so that the noise of the spin detector is visible. Now vary the frequency of the spin detector to find the spin resonance signal (wi ...
... to adjust the height. Set the modulation frequency of the magnetic field to about 20 Hz and the modulation amplitude to 1 V. Adjust the sensitivity of the oscillograph so that the noise of the spin detector is visible. Now vary the frequency of the spin detector to find the spin resonance signal (wi ...
Power Factor Correction and Power Quality Issues
... characteristic harmonics of non-linear loads. The harmonic value of 3 should also be avoided as it coincides with harmonics produced during transformer energisation and/or operation of the transformer above rated voltage. Harmonic voltages can be reduced by the use of a harmonic compensator, which i ...
... characteristic harmonics of non-linear loads. The harmonic value of 3 should also be avoided as it coincides with harmonics produced during transformer energisation and/or operation of the transformer above rated voltage. Harmonic voltages can be reduced by the use of a harmonic compensator, which i ...
OPTIMIZACIN EN EL DISEO DE DISPOSITIVOS RF APLICADOS EN
... Spice simulation was performed by choosing an ideal switch including its on-off characteristics, a power supply VDD=1.5 V, sampling frequency fs=250 kHz and capacitors C=100nF. During simulations, the changes of voltage across the capacitor C2 as a function of Ron were compared with the calculated v ...
... Spice simulation was performed by choosing an ideal switch including its on-off characteristics, a power supply VDD=1.5 V, sampling frequency fs=250 kHz and capacitors C=100nF. During simulations, the changes of voltage across the capacitor C2 as a function of Ron were compared with the calculated v ...
N-channel 600 V, 0.440 typ., 8 A MDmesh™ DM2 Power MOSFET in
... STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, enhancements, modifications, and improvements to ST products and/or to this document at any time without notice. Purchasers should obtain the latest relevant information on ST products before placing or ...
... STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, enhancements, modifications, and improvements to ST products and/or to this document at any time without notice. Purchasers should obtain the latest relevant information on ST products before placing or ...
Single-Channel, 5th Order, Standard Definition Video Filter Driver
... video encoder, and a gain of +6dB in the output amplifier to drive 75Ω load. The AC or DC-coupled input buffer eliminates sync crush, droop, and field tilt. The output of BL1511 also can be DC-coupled or AC-coupled. Input Considerations Besides AC coupling, the BL1511 inputs also can be DC-coupled. ...
... video encoder, and a gain of +6dB in the output amplifier to drive 75Ω load. The AC or DC-coupled input buffer eliminates sync crush, droop, and field tilt. The output of BL1511 also can be DC-coupled or AC-coupled. Input Considerations Besides AC coupling, the BL1511 inputs also can be DC-coupled. ...
UCC25230 - Texas Instruments
... It is capable of operating from an input voltage range of 12 V to 100 V (up to 105-V surge), making it ideal for usage in 24-V or 48-V input telecom applications. High-side and low-side power switches are integrated and provide up to 200 mA of peak output current. The UCC25230 is an ideal, complemen ...
... It is capable of operating from an input voltage range of 12 V to 100 V (up to 105-V surge), making it ideal for usage in 24-V or 48-V input telecom applications. High-side and low-side power switches are integrated and provide up to 200 mA of peak output current. The UCC25230 is an ideal, complemen ...
Article - University of Warwick
... density of the data. A 1/f noise contribution can be seen as well as a constant noise-floor. The maximum power in that constant noise corresponds to 2.3 mV noise and should be present at all frequencies. The smooth roll-off towards higher frequencies is a consequence of the Lock-in amplifier filter ...
... density of the data. A 1/f noise contribution can be seen as well as a constant noise-floor. The maximum power in that constant noise corresponds to 2.3 mV noise and should be present at all frequencies. The smooth roll-off towards higher frequencies is a consequence of the Lock-in amplifier filter ...
Gibson GA30RVS
... The output of the reverb tray goes into IC1B. This is configured as a differential amplifier as a way of reducing any hum that may be picked up on the sensitive reverb return leads. RV3 controls the level of the reverb. Across pins 1 and 2 is TR4, a J175 FET. When the ring connection on SK3 is short ...
... The output of the reverb tray goes into IC1B. This is configured as a differential amplifier as a way of reducing any hum that may be picked up on the sensitive reverb return leads. RV3 controls the level of the reverb. Across pins 1 and 2 is TR4, a J175 FET. When the ring connection on SK3 is short ...
Current Output/Serial Input, 16-Bit DAC AD5543-EP Data Sheet
... Serial Register Input. Data loads directly into the shift register MSB first. Extra leading bits are ignored. Internal Matching Feedback Resistor. This pin connects to an external op amp for voltage output. DAC Reference Input Pin. Establishes DAC full-scale voltage. Constant input resistance vs. co ...
... Serial Register Input. Data loads directly into the shift register MSB first. Extra leading bits are ignored. Internal Matching Feedback Resistor. This pin connects to an external op amp for voltage output. DAC Reference Input Pin. Establishes DAC full-scale voltage. Constant input resistance vs. co ...
DC Generators Separate and Shunt Excitation
... from being accidentally operated at high speed. Every time that you wish to start the machine, first set this control to zero. (b) You will be working with voltages up to DC 220 V and currents up to 10 A DC. These levels of voltages/currents are dangerous. To avoid electric shock, connecting circuit ...
... from being accidentally operated at high speed. Every time that you wish to start the machine, first set this control to zero. (b) You will be working with voltages up to DC 220 V and currents up to 10 A DC. These levels of voltages/currents are dangerous. To avoid electric shock, connecting circuit ...
A Novel Three-Phase and Four
... change. These methods often have a non-detection zone, and also may cause false tripping of generating units. Also in case of small load changes for the DG (the contingency takes place close to the DG bus), the conventional methods have some difficulty in detecting such islanding condition. Also, th ...
... change. These methods often have a non-detection zone, and also may cause false tripping of generating units. Also in case of small load changes for the DG (the contingency takes place close to the DG bus), the conventional methods have some difficulty in detecting such islanding condition. Also, th ...
1021 DC Current Source with Null Indicator
... overload protected and a front panel indicator shows when insufficient drive voltage is available. Maximum output voltage is adjustable between 14 volts and 40 volts, with a maximum output power of 2.4 watts. The unique circuit design ensures that it stays well within specification for at least 12 m ...
... overload protected and a front panel indicator shows when insufficient drive voltage is available. Maximum output voltage is adjustable between 14 volts and 40 volts, with a maximum output power of 2.4 watts. The unique circuit design ensures that it stays well within specification for at least 12 m ...
Motor Service Factor - Toshont Power Products
... additional heating over and above the I2t heating effect. This is due to the harmonic content of the drive’s output waveform. This additional heating can range from 5% extra heating for a good quality PWM drive with an adequately high carrier frequency to up to 30% additional heating for a square wa ...
... additional heating over and above the I2t heating effect. This is due to the harmonic content of the drive’s output waveform. This additional heating can range from 5% extra heating for a good quality PWM drive with an adequately high carrier frequency to up to 30% additional heating for a square wa ...
Operating instruction RM 201
... +24 V DC ( ±10 %), max. power consumption 1750 mW (only RM 201) The GND (^ ^) of the 24 V DC supply has to be connected to the protective earth(PE). The module supplies all I/O modules with the required voltages; the max. current consumption is 1.5 A (depending on the I/O modules used). ...
... +24 V DC ( ±10 %), max. power consumption 1750 mW (only RM 201) The GND (^ ^) of the 24 V DC supply has to be connected to the protective earth(PE). The module supplies all I/O modules with the required voltages; the max. current consumption is 1.5 A (depending on the I/O modules used). ...
RF_Specification_discussion
... High voltage power supplies for these amplifiers have been designed that will allow operation at 1 Hz and 1 ms RF pulse length. The amplifier system will be able to produce a maximum of 2 MW of RF power. This will be split between two cavities; however losses in the coax transmission system are expe ...
... High voltage power supplies for these amplifiers have been designed that will allow operation at 1 Hz and 1 ms RF pulse length. The amplifier system will be able to produce a maximum of 2 MW of RF power. This will be split between two cavities; however losses in the coax transmission system are expe ...
TS4100,01,02 EVB User Guide
... 1. Before connecting the dc power supply to the demo board, turn on the power supply, set the dc voltage to 1.5 V, and then turn it off. 2. Connect the dc power supply positive terminal to the test point labeled VDD. Connect the negative terminal of the dc power supply to the test point labeled GND. ...
... 1. Before connecting the dc power supply to the demo board, turn on the power supply, set the dc voltage to 1.5 V, and then turn it off. 2. Connect the dc power supply positive terminal to the test point labeled VDD. Connect the negative terminal of the dc power supply to the test point labeled GND. ...
Pulse-width modulation
Pulse-width modulation (PWM), or pulse-duration modulation (PDM), is a modulation technique used to encode a message into a pulsing signal. Although this modulation technique can be used to encode information for transmission, its main use is to allow the control of the power supplied to electrical devices, especially to inertial loads such as motors. In addition, PWM is one of the two principal algorithms used in photovoltaic solar battery chargers, the other being MPPT.The average value of voltage (and current) fed to the load is controlled by turning the switch between supply and load on and off at a fast rate. The longer the switch is on compared to the off periods, the higher the total power supplied to the load.The PWM switching frequency has to be much higher than what would affect the load (the device that uses the power), which is to say that the resultant waveform perceived by the load must be as smooth as possible. Typically switching has to be done several times a minute in an electric stove, 120 Hz in a lamp dimmer, from few kilohertz (kHz) to tens of kHz for a motor drive and well into the tens or hundreds of kHz in audio amplifiers and computer power supplies.The term duty cycle describes the proportion of 'on' time to the regular interval or 'period' of time; a low duty cycle corresponds to low power, because the power is off for most of the time. Duty cycle is expressed in percent, 100% being fully on.The main advantage of PWM is that power loss in the switching devices is very low. When a switch is off there is practically no current, and when it is on and power is being transferred to the load, there is almost no voltage drop across the switch. Power loss, being the product of voltage and current, is thus in both cases close to zero. PWM also works well with digital controls, which, because of their on/off nature, can easily set the needed duty cycle.PWM has also been used in certain communication systems where its duty cycle has been used to convey information over a communications channel.