Digital Representation of Audio Information
... Compression: In order to improve the dynamic range of a system without overdriving the amplifiers (or other elements in the system) resulting in hard clipping, a softer clip can be applied to more gradually compress the signal amplitude as it approaches the saturation limits of the system. ...
... Compression: In order to improve the dynamic range of a system without overdriving the amplifiers (or other elements in the system) resulting in hard clipping, a softer clip can be applied to more gradually compress the signal amplitude as it approaches the saturation limits of the system. ...
Power Quality Improvement using Fuzzy Logic based UPQC
... proposed. The shunt APFs are used to compensate current related problems, such as reactive power compensation, current harmonic filtering, load unbalance compensation, etc. The series APFs are used to compensate voltage related problems, such as voltage harmonics, voltage sag, voltage swell, voltage ...
... proposed. The shunt APFs are used to compensate current related problems, such as reactive power compensation, current harmonic filtering, load unbalance compensation, etc. The series APFs are used to compensate voltage related problems, such as voltage harmonics, voltage sag, voltage swell, voltage ...
“Fuzzy Logic Speed Controllers Using FPGA Technique For Three
... Motors, solenoids, transformers, and even some resistive heaters have inductive components as apart of their impedance. The effect of this reactance is that the rms-to-average-current ratio is lowered. Higher average current can be passed through the SCR. With an inductive load , current flow is mai ...
... Motors, solenoids, transformers, and even some resistive heaters have inductive components as apart of their impedance. The effect of this reactance is that the rms-to-average-current ratio is lowered. Higher average current can be passed through the SCR. With an inductive load , current flow is mai ...
AE 100TX COMMERCIAL INVERTERS
... system, and card cage circuit board design result in remarkable reliability, and a track record of 99+% uptime. With a best-in-class efficiency of 96%, the highly integrated system is designed to save installers time and money with load break rated AC and DC service disconnects, neutralfree installa ...
... system, and card cage circuit board design result in remarkable reliability, and a track record of 99+% uptime. With a best-in-class efficiency of 96%, the highly integrated system is designed to save installers time and money with load break rated AC and DC service disconnects, neutralfree installa ...
Pulse-Width Modulated CMOS Power Amplifiers
... average efficiency. A plot of the efficiency characteristic of a linear PA operating in a Class-B mode accompanied by the envelope probability density function (pdf) of an IEEE 802.11a [1] symbol is shown in Figure 1. It should be noted that, although the Class-B PA is not by nature a linear PA, the ...
... average efficiency. A plot of the efficiency characteristic of a linear PA operating in a Class-B mode accompanied by the envelope probability density function (pdf) of an IEEE 802.11a [1] symbol is shown in Figure 1. It should be noted that, although the Class-B PA is not by nature a linear PA, the ...
Electronics
... Basic principles of amplitude, frequency and phase modulation, Demodulation, Intermediate frequency and principle of superheterodyne receiver, Characteristics of radio receiver, Spectralanalysis and signal transmission through linear systems, Random signals and noise, Noisetemperature and noise figu ...
... Basic principles of amplitude, frequency and phase modulation, Demodulation, Intermediate frequency and principle of superheterodyne receiver, Characteristics of radio receiver, Spectralanalysis and signal transmission through linear systems, Random signals and noise, Noisetemperature and noise figu ...
truecontrol
... T uePower power supply with a special external control panel that gives you the flexibility to adjust the main output voltages and minimum fan settings for peak perf r ormance. So the power supply can provide more cooling or less noise, plus precise output rf voltages for maximum stability. y y. Wit ...
... T uePower power supply with a special external control panel that gives you the flexibility to adjust the main output voltages and minimum fan settings for peak perf r ormance. So the power supply can provide more cooling or less noise, plus precise output rf voltages for maximum stability. y y. Wit ...
Fuzzy Logic Speed Controllers Using FPGA Technique For Three
... Motors, solenoids, transformers, and even some resistive heaters have inductive components as apart of their impedance. The effect of this reactance is that the rms-to-average-current ratio is lowered. Higher average current can be passed through the SCR. With an inductive load , current flow is mai ...
... Motors, solenoids, transformers, and even some resistive heaters have inductive components as apart of their impedance. The effect of this reactance is that the rms-to-average-current ratio is lowered. Higher average current can be passed through the SCR. With an inductive load , current flow is mai ...
PDF 258 kB - Elmos Semiconductor AG
... 8-channel I²C programmable Linear LED Driver Parallel output operation for up to 200mA 8Bit adjustable LED master current 1mA to 26.5mA 8Bit PWM based LED luminous intensity level for LED binning calibration All LED operating adjustment data and system configurations storable in E2PROM memory Global ...
... 8-channel I²C programmable Linear LED Driver Parallel output operation for up to 200mA 8Bit adjustable LED master current 1mA to 26.5mA 8Bit PWM based LED luminous intensity level for LED binning calibration All LED operating adjustment data and system configurations storable in E2PROM memory Global ...
POWER QUALITY -- An Indian Perspective
... allow over-drawal, as long as grid can sustain it, and it is paid for. b) LOAD - SHEDDING to curtail over-loading or under-voltage : If too frequent, ask for system augmentation, additional capacitors. ...
... allow over-drawal, as long as grid can sustain it, and it is paid for. b) LOAD - SHEDDING to curtail over-loading or under-voltage : If too frequent, ask for system augmentation, additional capacitors. ...
PWM to PPM converter
... The input signals are connected to resistor ladders (R21-R36). Value of these resistors should be chosen according to the signal level of the receiver. Sum of value of ladder elements should be around 10 Kohm. PWM signal of Futaba R608FS has 3 V amplitude so R22 R24 R26 R28 R30 R32 R34 R36 aren’t us ...
... The input signals are connected to resistor ladders (R21-R36). Value of these resistors should be chosen according to the signal level of the receiver. Sum of value of ladder elements should be around 10 Kohm. PWM signal of Futaba R608FS has 3 V amplitude so R22 R24 R26 R28 R30 R32 R34 R36 aren’t us ...
DC Motor Reversing
... used to rotate pumps, fans, compressors, wheels, etc. There are basically two types of conventional electrical motor available: AC and DC Motors. AC Motors are generally used in high power single or multi-phase industrial applications where a constant rotational torque and speed is required to contr ...
... used to rotate pumps, fans, compressors, wheels, etc. There are basically two types of conventional electrical motor available: AC and DC Motors. AC Motors are generally used in high power single or multi-phase industrial applications where a constant rotational torque and speed is required to contr ...
EUA2510 2.7W Boosted Class-D Audio Power Amplifier
... 2.7W Boosted Class-D Audio Power Amplifier DESCRIPTION The EUA2510 integrates a current-mode boost converter with a high efficiency mono, Class D audio power amplifier to provide 2.7W/10% THD or 2W/1% THD continuous power into a 4Ω speaker when operating on a 3.3V power supply with boost voltage (PV ...
... 2.7W Boosted Class-D Audio Power Amplifier DESCRIPTION The EUA2510 integrates a current-mode boost converter with a high efficiency mono, Class D audio power amplifier to provide 2.7W/10% THD or 2W/1% THD continuous power into a 4Ω speaker when operating on a 3.3V power supply with boost voltage (PV ...
Slide 1 - New Mexico Tech - New Mexico Institute of Mining and
... – Ex: a 120V input into a 2250 turn primary coil produces 26.7V output onto a 500 turn secondary coil ...
... – Ex: a 120V input into a 2250 turn primary coil produces 26.7V output onto a 500 turn secondary coil ...
oil well monitoring system
... to acquire effective boost switcher output voltage Get rectified AC voltage reading and convert to 200V reading scale Subtract AC rectified voltage from effective boost switcher output voltage to obtain boost difference voltage If result is negative, clip at 0 Divide boost difference voltage by boos ...
... to acquire effective boost switcher output voltage Get rectified AC voltage reading and convert to 200V reading scale Subtract AC rectified voltage from effective boost switcher output voltage to obtain boost difference voltage If result is negative, clip at 0 Divide boost difference voltage by boos ...
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.