Buck-Boost Converter Introduction A Buck
... gradually decreasing as the battery charge is used up. At full charge, where the battery voltage may be higher than actually needed by the circuit being powered, a buck regulator would be ideal to keep the supply voltage steady. However as the charge diminishes, the input voltage falls below the lev ...
... gradually decreasing as the battery charge is used up. At full charge, where the battery voltage may be higher than actually needed by the circuit being powered, a buck regulator would be ideal to keep the supply voltage steady. However as the charge diminishes, the input voltage falls below the lev ...
Intelligent power switch
... Application information The LED driver tells the output status. It can source or sink current (Iold typ = 3 mA), according to the output configuration chosen. The thresholds, represented by the output comparator in the block diagram, are set at about 1.5 V - 2 V. For instance, in the high side load ...
... Application information The LED driver tells the output status. It can source or sink current (Iold typ = 3 mA), according to the output configuration chosen. The thresholds, represented by the output comparator in the block diagram, are set at about 1.5 V - 2 V. For instance, in the high side load ...
STEVAL-IHM040V1 hardware description
... The emitters of the three low side IGBTs are connected to pins N-A, N-B, and N-C and are tied together externally and then returned to ground through current sensing resistor R28. The resistor value is 0.25 Ω and thus generates a signal of 0.25 V per Ampere of motor current. This Isense signal is ap ...
... The emitters of the three low side IGBTs are connected to pins N-A, N-B, and N-C and are tied together externally and then returned to ground through current sensing resistor R28. The resistor value is 0.25 Ω and thus generates a signal of 0.25 V per Ampere of motor current. This Isense signal is ap ...
CONTROL CIRCUIT FOR ACTIVE POWER FILTER WITH AN INSTA
... harmonics and asymmetries of the mains currents caused by nonlinear loads. The simplified diagram of a 75 kVA three-phase shunt active power filter test circuit is shown in . This APF was built in our Institute laboratory and is used for testing APF control algorithms The control circuit is based on ...
... harmonics and asymmetries of the mains currents caused by nonlinear loads. The simplified diagram of a 75 kVA three-phase shunt active power filter test circuit is shown in . This APF was built in our Institute laboratory and is used for testing APF control algorithms The control circuit is based on ...
Allegro UCN5804b vs Steptronics – StepGenie
... performance requiring few external parts. The control signals and stepping modes of the two devices are identical. The StepGenie, however, can drive much much larger motors because the driver section is brought outside the chip, allowing it to cope with much higher currents. Where the 5804 has a lim ...
... performance requiring few external parts. The control signals and stepping modes of the two devices are identical. The StepGenie, however, can drive much much larger motors because the driver section is brought outside the chip, allowing it to cope with much higher currents. Where the 5804 has a lim ...
TU5PFP030
... The AD9850’s innovative high speed DDS core provides a 32-bit frequency tuning word, which achieves an output tuning resolution of 0.0291 Hz under a 125 MHz reference clock input. The chip allows the output frequency up to one-half of the reference clock frequency, so the output frequency can reach ...
... The AD9850’s innovative high speed DDS core provides a 32-bit frequency tuning word, which achieves an output tuning resolution of 0.0291 Hz under a 125 MHz reference clock input. The chip allows the output frequency up to one-half of the reference clock frequency, so the output frequency can reach ...
ELEC 5705 RF Systems Design: Assignment #1
... Due Oct. 8th, 2014 (late assignments will be penalized at 25% per day) The goal of this assignment will be to become familiar with Matlab and some of its capabilities for doing system level RF analysis. To that end we will begin by creating a model for a nonlinear amplifier. Create a function for yo ...
... Due Oct. 8th, 2014 (late assignments will be penalized at 25% per day) The goal of this assignment will be to become familiar with Matlab and some of its capabilities for doing system level RF analysis. To that end we will begin by creating a model for a nonlinear amplifier. Create a function for yo ...
ROBOTICS BASED HVDC TRANSMISSION LINE HARMONIC
... damping oscillations in power systems or in parallel HVAC lines. The advantages described above encourage the use of DC links for separating large power systems into several non synchronous parts. Harmonic control techniques In order to control the harmonic in this system there are many techniques c ...
... damping oscillations in power systems or in parallel HVAC lines. The advantages described above encourage the use of DC links for separating large power systems into several non synchronous parts. Harmonic control techniques In order to control the harmonic in this system there are many techniques c ...
Design and Simulation of Cascaded H
... and unusual faults could also inflict power quality (PQ) problems. PQ problem is defined as any manifested problem in voltage I current or leading to frequency deviations that result in failure or mal operation of customer equipment. Voltage sags and swells are among the many PQ problems the industr ...
... and unusual faults could also inflict power quality (PQ) problems. PQ problem is defined as any manifested problem in voltage I current or leading to frequency deviations that result in failure or mal operation of customer equipment. Voltage sags and swells are among the many PQ problems the industr ...
ELEC 5705 RF Systems Design: Assignment #1
... Due Oct. 13th, 2016 (late assignments will be penalized at 25% per day) The goal of this assignment will be to become familiar with Matlab and some of its capabilities for doing system level RF analysis. To that end we will begin by creating a model for a nonlinear amplifier. Create a function for y ...
... Due Oct. 13th, 2016 (late assignments will be penalized at 25% per day) The goal of this assignment will be to become familiar with Matlab and some of its capabilities for doing system level RF analysis. To that end we will begin by creating a model for a nonlinear amplifier. Create a function for y ...
Power Amp Super Bridge 120W by IC TDA2030
... source that be appropriate about +15V and -15V that current 2Amp. Besides should use heat sink at have the size is appropriate IC TDA2030 and Q1-Q4 BD249,BD250 for see the circuit has already. Build easy must not fine decorate anything. Request a friend has fun Power Amp Super Bridge 120W by IC TDA2 ...
... source that be appropriate about +15V and -15V that current 2Amp. Besides should use heat sink at have the size is appropriate IC TDA2030 and Q1-Q4 BD249,BD250 for see the circuit has already. Build easy must not fine decorate anything. Request a friend has fun Power Amp Super Bridge 120W by IC TDA2 ...
DN1001 - High Efficiency, High Density Power
... capacitors . Please refer to Linear Technology Corporation Design Note 10 for more details on active voltage positioning. Conclusion The LTC3731 can be used to create 3-, 6- or 12-phase power supplies that provide high current, high density solutions with good efficiency and rapid transient response ...
... capacitors . Please refer to Linear Technology Corporation Design Note 10 for more details on active voltage positioning. Conclusion The LTC3731 can be used to create 3-, 6- or 12-phase power supplies that provide high current, high density solutions with good efficiency and rapid transient response ...
Interharmonics - Working Group
... Figure 7 – rms Voltage Deviation with 0.2% Distortion (50 Hz Power System) As shown in the figure, at interharmonic frequencies higher than twice the power frequency, the modulation impact on the rms value is small compared to the impact in the frequency range below the second harmonic. The IEC flic ...
... Figure 7 – rms Voltage Deviation with 0.2% Distortion (50 Hz Power System) As shown in the figure, at interharmonic frequencies higher than twice the power frequency, the modulation impact on the rms value is small compared to the impact in the frequency range below the second harmonic. The IEC flic ...
DOC
... w(t ) 1 cos(2 2.5 103 t ) Signal input. The DC is added so we can build the sampler using a single +5V supply. What is the Nyquist sample rate for this signal? ...
... w(t ) 1 cos(2 2.5 103 t ) Signal input. The DC is added so we can build the sampler using a single +5V supply. What is the Nyquist sample rate for this signal? ...
Modified One Cycle Controlled Scheme for Single
... many parts of world, particularly in developing countries, is expected to be met from hybrid systems. A reliable and low-cost single phase grid connected inverter which requires little maintenance has become order of the day for interfacing such low- capacity systems to grid. Traditionally, diode re ...
... many parts of world, particularly in developing countries, is expected to be met from hybrid systems. A reliable and low-cost single phase grid connected inverter which requires little maintenance has become order of the day for interfacing such low- capacity systems to grid. Traditionally, diode re ...
Title: AN ADAPTIVE NEURO FUZZY POWER SYSTEM STABILIZER
... to minimize a cost function. The cost function consists of a summation of terms, in which each term is made up of the square of the difference in speed between the machine to which the PSS is connected and another machine in that same area (the number of terms equal the number of machines in that ar ...
... to minimize a cost function. The cost function consists of a summation of terms, in which each term is made up of the square of the difference in speed between the machine to which the PSS is connected and another machine in that same area (the number of terms equal the number of machines in that ar ...
Electric-field-induced second-harmonic generation
... where Pv is the EFISH polarization given by relation (1) and Pb is the background SH polarization. Pb could be a piezoelectric term when Pb ~ x 共3兲 Ev 2 Epiezo or a second-order term for Pb ~ x 共2兲 Ev 2 . Regardless of the source of the background term, if Pb .. Pv , homodyne detection of Pv becomes ...
... where Pv is the EFISH polarization given by relation (1) and Pb is the background SH polarization. Pb could be a piezoelectric term when Pb ~ x 共3兲 Ev 2 Epiezo or a second-order term for Pb ~ x 共2兲 Ev 2 . Regardless of the source of the background term, if Pb .. Pv , homodyne detection of Pv becomes ...
Triac dimmable LED lighting solution: Luigi Galioto, Ranajay Mallik, Manoj Kumar ABSTRACT
... still maintaining a good LED current accuracy (+/-5%). The device can also provide a constant output voltage regulation (CV): it allows the application to be able to work safely when the LED string opens due to a failure. In addition, the device offers the shorted secondary rectifier (i.e. LED strin ...
... still maintaining a good LED current accuracy (+/-5%). The device can also provide a constant output voltage regulation (CV): it allows the application to be able to work safely when the LED string opens due to a failure. In addition, the device offers the shorted secondary rectifier (i.e. LED strin ...
doc
... 3.2 HV DAC As expected the DAC wakes up at mid-range of the internal reference 2.055V. If this will present a problem a redesign might be necessary in order to use an op-amp to reverse the slope. Following figure shows the proposed solution: ...
... 3.2 HV DAC As expected the DAC wakes up at mid-range of the internal reference 2.055V. If this will present a problem a redesign might be necessary in order to use an op-amp to reverse the slope. Following figure shows the proposed solution: ...
Radarxense datasheet RXS-SOG-15
... speed over ground information is given by pulses like a tachometer. General technical data ...
... speed over ground information is given by pulses like a tachometer. General technical data ...
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.