fuzzy control of shoot through time of single stage
... The global energy consumption is increasing and the significance of a distributed generation (DG) units which includes renewable energy sources is gaining more importance. These DG units face problems like wide variation in voltages produced by renewable energy sources. For example, wind power gener ...
... The global energy consumption is increasing and the significance of a distributed generation (DG) units which includes renewable energy sources is gaining more importance. These DG units face problems like wide variation in voltages produced by renewable energy sources. For example, wind power gener ...
Voltage Stability Assessment via Continuation Power Flow Method
... still remained [3]. On the other hand, the CPFLOW Continuation method is slightly a modified CPF technique; which uses the same continuation parameter in their techniques to search equilibrium solution. The difference is the adoption of Secant-base Predictor and pseudo arclength-based corrector meth ...
... still remained [3]. On the other hand, the CPFLOW Continuation method is slightly a modified CPF technique; which uses the same continuation parameter in their techniques to search equilibrium solution. The difference is the adoption of Secant-base Predictor and pseudo arclength-based corrector meth ...
Low Voltage System Configuration
... FT6, 300 Volt, Flamearrest Jacket) = Fast acting fuse (30 A fast blow fuse either panel mounted by factory or in line with power cable) The actual type and specs will be supplied when design is finalized ...
... FT6, 300 Volt, Flamearrest Jacket) = Fast acting fuse (30 A fast blow fuse either panel mounted by factory or in line with power cable) The actual type and specs will be supplied when design is finalized ...
a high step-down multiple output converter with wide input voltage
... A multiple output dc–dc converter based on quasi two-stage architecture has been proposed in this letter. By connecting the input and output of the dc-DCX in series, 20%–25% ratio of the total input power is directly fed to the intermediate bus without conversion. Hence, the devices’ voltage stresse ...
... A multiple output dc–dc converter based on quasi two-stage architecture has been proposed in this letter. By connecting the input and output of the dc-DCX in series, 20%–25% ratio of the total input power is directly fed to the intermediate bus without conversion. Hence, the devices’ voltage stresse ...
A Control Strategy for Hybrid Power Filter to Compensate Four
... harmonic voltage source. The shunt connection APF is the most studied topology [6]–[10]. However, the costs of shunt active filters are relatively high for large-scale system and are difficult to use in high-voltage grids. In addition, their compensating performance is better in the harmonic current ...
... harmonic voltage source. The shunt connection APF is the most studied topology [6]–[10]. However, the costs of shunt active filters are relatively high for large-scale system and are difficult to use in high-voltage grids. In addition, their compensating performance is better in the harmonic current ...
J.W. Phinney, D.J. Perreault, and J.H. Lang, “Radio-Frequency Inverters with Transmission-Line Input Networks,” IEEE Transactions on Power Electronics , Vol. 22, No. 4, pp. 1154-1161, July 2007.
... source with three silver-mica snubber capacitors which are self-resonant near the switching fundamental and its fourth harmonic. Without this ac short, the line’s boundary conditions are not enforced well enough to produce a square-wave voltage at the drain. The output network is an L-match into a 5 ...
... source with three silver-mica snubber capacitors which are self-resonant near the switching fundamental and its fourth harmonic. Without this ac short, the line’s boundary conditions are not enforced well enough to produce a square-wave voltage at the drain. The output network is an L-match into a 5 ...
A Three-Phase Grid-Connected Inverter for
... 150 to 1000 W/m2. It can be seen that the system tracks the new operating point very quickly, faster than most MPPT strategies. It has to be said that this is an extreme change in irradiation levels that is unlikely to occur but shows the good performance of the MPPT. ...
... 150 to 1000 W/m2. It can be seen that the system tracks the new operating point very quickly, faster than most MPPT strategies. It has to be said that this is an extreme change in irradiation levels that is unlikely to occur but shows the good performance of the MPPT. ...
Evaluates: MAX3864 MAX3864 Evaluation Kit Ordering Information
... input from a high-speed photodiode, with a total amplitude of 10µA to 2mA. Unfortunately, high-speed current sources are not common laboratory equipment. Also, because the MAX3864 provides a DC bias for the photodiode, it cannot be DC-coupled to signal sources. To allow characterization without a ph ...
... input from a high-speed photodiode, with a total amplitude of 10µA to 2mA. Unfortunately, high-speed current sources are not common laboratory equipment. Also, because the MAX3864 provides a DC bias for the photodiode, it cannot be DC-coupled to signal sources. To allow characterization without a ph ...
10-Bit, 40MHz, Current/Voltage-Output DACs General Description Features
... operation to minimize unwanted spurious signal components at the output. An on-board 1.2V bandgap circuit provides a well-regulated, low-noise reference that can be disabled for external reference operation. The devices are designed to provide a high level of signal integrity for the least amount of ...
... operation to minimize unwanted spurious signal components at the output. An on-board 1.2V bandgap circuit provides a well-regulated, low-noise reference that can be disabled for external reference operation. The devices are designed to provide a high level of signal integrity for the least amount of ...
AP8802 1A LED STEP-DOWN CONVERTER Description
... 6. For 100% brightness either leave floating or connect to 1.25V relative to GND. 7. AP8802 will operate at higher frequencies but accuracy will be affected due to propagation delays and also increased power dissipation will occur due to increased switching losses. 8. For most applications the LED c ...
... 6. For 100% brightness either leave floating or connect to 1.25V relative to GND. 7. AP8802 will operate at higher frequencies but accuracy will be affected due to propagation delays and also increased power dissipation will occur due to increased switching losses. 8. For most applications the LED c ...
To Interface Digital -to-Analog converter to 8085 using 8255 and
... THEORY:Digital-to-Analog Conversion or simply DAC, is a device that is used to convert a digital (usually binary) code into an analog signal (current, voltage, or electric charge). Digital-to-analog conversion is the primary means by which digital equipment such as computer-based systems are able to ...
... THEORY:Digital-to-Analog Conversion or simply DAC, is a device that is used to convert a digital (usually binary) code into an analog signal (current, voltage, or electric charge). Digital-to-analog conversion is the primary means by which digital equipment such as computer-based systems are able to ...
Selecting the Optimum Transient Voltage Suppressor
... voltages in hand, examine the clamping-voltage ratings published in the manufacturer’s data sheets to identify suppressors falling within the required range. It is possible that there is no device that falls well within the upper and lower limits. If the device with the closest voltage rating falls ...
... voltages in hand, examine the clamping-voltage ratings published in the manufacturer’s data sheets to identify suppressors falling within the required range. It is possible that there is no device that falls well within the upper and lower limits. If the device with the closest voltage rating falls ...
High Power Connector Overview
... ✓ Compact design applicable to 1U size ✓ Multiple contact points on power contact decrease heat generation by current flow ✓ Safety design in consideration of deterioration of resin over time ✓ Large effective mating length reserves sufficient design margin of a unit ✓ UL/C-UL/TÜV pending ...
... ✓ Compact design applicable to 1U size ✓ Multiple contact points on power contact decrease heat generation by current flow ✓ Safety design in consideration of deterioration of resin over time ✓ Large effective mating length reserves sufficient design margin of a unit ✓ UL/C-UL/TÜV pending ...
Analysis of an AC-DC Valley-fill Power Factor Corrector (VFPFC) Dylan Dah-Chuan Lu
... be further reduced comparing to the same rating of output power of active PFC circuits. Besides, normal standard diodes can be used as no switching is involved, hence the cost may also reduce. In addition, due to the advancement of semiconductor packaging, we may use dual-diode in a single package s ...
... be further reduced comparing to the same rating of output power of active PFC circuits. Besides, normal standard diodes can be used as no switching is involved, hence the cost may also reduce. In addition, due to the advancement of semiconductor packaging, we may use dual-diode in a single package s ...
Noise/ SI becoming increasing critical
... It is a function of the separation between signal lines, the linear distance that signals lines run parallel with each other. The faster edge rates of today's logic devices greatly increase the possibility of coupling or crosstalk between signals. To maximize speed, crosstalk must be reduced to leve ...
... It is a function of the separation between signal lines, the linear distance that signals lines run parallel with each other. The faster edge rates of today's logic devices greatly increase the possibility of coupling or crosstalk between signals. To maximize speed, crosstalk must be reduced to leve ...
Measurement noise and signal processing
... This does not cause a problem as long as the earth potential at both ends is the same. However, it is common to find that other machinery and equipment carrying large currents is connected to the same earth plane. This can cause the potential to vary between different points on the earth plane. ...
... This does not cause a problem as long as the earth potential at both ends is the same. However, it is common to find that other machinery and equipment carrying large currents is connected to the same earth plane. This can cause the potential to vary between different points on the earth plane. ...
L22079086
... The current injection at the Kth bus for three-phase load connected in Delta are single-phase load connected line-to-line can be expressed by ...
... The current injection at the Kth bus for three-phase load connected in Delta are single-phase load connected line-to-line can be expressed by ...
LOVOS-5 LOVOS-10 Low voltage surge arrester
... Principle of operation The principal „active” element of the surge arrester is a metal oxide varistor characterised by high non-linearity. At a working voltage mainly a capacity current flows smaller than 1 mA. Any voltage increase causes a large increase of current flowing through the varistor, lea ...
... Principle of operation The principal „active” element of the surge arrester is a metal oxide varistor characterised by high non-linearity. At a working voltage mainly a capacity current flows smaller than 1 mA. Any voltage increase causes a large increase of current flowing through the varistor, lea ...
EE302: Lesson 2 Gain and decibels
... The encoder logic circuit converts the 7-bit input from the comparators into a 3-bit binary output. The flash converter produces an output as fast as the comparators can switch and the signals can be translated to binary levels by the logic ...
... The encoder logic circuit converts the 7-bit input from the comparators into a 3-bit binary output. The flash converter produces an output as fast as the comparators can switch and the signals can be translated to binary levels by the logic ...
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.