Instrumentation for High Performance Nonintrusive Electrical Load
... range of x(f). The spectral envelope estimate produced by this filter will be relatively band-limited and, therefore, easily sampled at a low rate. However, a low cutoff filter will respond slowly to changes in harmonic content. Alternatively, a lowpass filter with a broader pass band in frequency w ...
... range of x(f). The spectral envelope estimate produced by this filter will be relatively band-limited and, therefore, easily sampled at a low rate. However, a low cutoff filter will respond slowly to changes in harmonic content. Alternatively, a lowpass filter with a broader pass band in frequency w ...
SK-Zone Interface Module
... The SK-Zone mounts directly to 4-inch square electrical boxes (see Figure 2). The box must have a minimum depth of 21/8 inches. Surface mounted electrical boxes (SMB500) are available from Silent Knight Wiring NOTE: All wiring must conform to applicable local codes, ordinances, and regulations. This ...
... The SK-Zone mounts directly to 4-inch square electrical boxes (see Figure 2). The box must have a minimum depth of 21/8 inches. Surface mounted electrical boxes (SMB500) are available from Silent Knight Wiring NOTE: All wiring must conform to applicable local codes, ordinances, and regulations. This ...
XPT IGBT Module
... results in a competitive low VCE(sat) ● Temperature sense included ● SONIC™ diode - fast and soft reverse recovery - low operating forward voltage ...
... results in a competitive low VCE(sat) ● Temperature sense included ● SONIC™ diode - fast and soft reverse recovery - low operating forward voltage ...
Aalborg Universitet
... generating units that are capable to operate with high resolution input data. Real parameters for the components of the simulated system are used in order to obtain realistic results. ...
... generating units that are capable to operate with high resolution input data. Real parameters for the components of the simulated system are used in order to obtain realistic results. ...
Hierarchical Coordinated Control of Multi bus
... support of power grid, the grid-connected converter is quickly placed in service after the fault removed and monitors the dc bus voltage. In this control level, the PV operates in M PPT mode that can efficiently extract the maximu m renewable energy, fuel cells are standby, and the battery operates ...
... support of power grid, the grid-connected converter is quickly placed in service after the fault removed and monitors the dc bus voltage. In this control level, the PV operates in M PPT mode that can efficiently extract the maximu m renewable energy, fuel cells are standby, and the battery operates ...
Ultra Low Harmonic Drives
... With a traditional frequency converter the amount of harmonic distortion is from 35 % up to 100 % ...
... With a traditional frequency converter the amount of harmonic distortion is from 35 % up to 100 % ...
LM317L 3-Terminal Adjustable Regulator - Elektronik
... vent the capacitors from discharging through low current points into the regulator. Most 10 mF capacitors have low enough internal series resistance to deliver 20A spikes when shorted. Although the surge is short, there is enough energy to damage parts of the IC. When an output capacitor is connecte ...
... vent the capacitors from discharging through low current points into the regulator. Most 10 mF capacitors have low enough internal series resistance to deliver 20A spikes when shorted. Although the surge is short, there is enough energy to damage parts of the IC. When an output capacitor is connecte ...
a 250 MHz, 10 ns Switching Multiplexers w/Amplifier AD8170/AD8174
... The AD8170/AD8174 multiplexers integrate wideband analog switches with a high speed current feedback amplifier. The input switches are complementary bipolar follower stages that are turned on and off by using a current steering technique that attains switch times of less than 10 ns and ensures low s ...
... The AD8170/AD8174 multiplexers integrate wideband analog switches with a high speed current feedback amplifier. The input switches are complementary bipolar follower stages that are turned on and off by using a current steering technique that attains switch times of less than 10 ns and ensures low s ...
Optimal Commutation of a BLDC Motor by Utilizing the Symmetric
... the proposed method and to verify its effectiveness [5]. The position information of a rotor is detected by monitoring the back-emf voltage, and a DSP controls the switching of the inverter circuit and the speed of the motor with the proportional - integral (PI) control. The DSP is TMS320LF2407A b ...
... the proposed method and to verify its effectiveness [5]. The position information of a rotor is detected by monitoring the back-emf voltage, and a DSP controls the switching of the inverter circuit and the speed of the motor with the proportional - integral (PI) control. The DSP is TMS320LF2407A b ...
Induction-Motor Starting
... Induction-Motor Starting • Connect directly across full-voltage using a contactor for each phase. ...
... Induction-Motor Starting • Connect directly across full-voltage using a contactor for each phase. ...
Harmonic Distortion from Variable Frequency Drives Harmonic
... • Excellent for large drives • Substantial reduction in harmonics – THD(I) = 3.5% @ full load 6% @ no load ...
... • Excellent for large drives • Substantial reduction in harmonics – THD(I) = 3.5% @ full load 6% @ no load ...
BM-4 - Onstate Technologies
... The internal circuit high input reference voltage (full scale, pin 6/7) is fixed at approximately 1.25 volts. Only the low reference voltage (first LED) needs be adjusted (LOW ADJ). The minimum input voltage to display a full-scale reading is 1.3V. The minimum differential input voltage is 0.5V. Adj ...
... The internal circuit high input reference voltage (full scale, pin 6/7) is fixed at approximately 1.25 volts. Only the low reference voltage (first LED) needs be adjusted (LOW ADJ). The minimum input voltage to display a full-scale reading is 1.3V. The minimum differential input voltage is 0.5V. Adj ...
BG4201393395
... The power factor correction of electrical loads is a problem common to all industrial companies. Earlier the power factor correction was done by adjusting the capacitive bank manually [1]. The automated power factor corrector (APFC) using capacitive load bank is helpful in providing the power factor ...
... The power factor correction of electrical loads is a problem common to all industrial companies. Earlier the power factor correction was done by adjusting the capacitive bank manually [1]. The automated power factor corrector (APFC) using capacitive load bank is helpful in providing the power factor ...
Paper 10b.1_publicat..
... Vd = 50 V compare to 16% at Vd = 75 V at 150 °C was measured. To conclude, we see that the degradation of important transistor parameters is more pronounced at higher drain voltages. However, by increasing the stress voltages, the output power of the device increases, in our case up to factor 2 by c ...
... Vd = 50 V compare to 16% at Vd = 75 V at 150 °C was measured. To conclude, we see that the degradation of important transistor parameters is more pronounced at higher drain voltages. However, by increasing the stress voltages, the output power of the device increases, in our case up to factor 2 by c ...
LM2930 3-Terminal Positive Regulator (Rev. D)
... Dropout Voltage: The input-output voltage differential at which the circuit ceases to regulate against further reduction in input voltage. Measured when the output voltage has dropped 100 mV from the nominal value obtained at 14V input, dropout voltage is dependent upon load current and junction tem ...
... Dropout Voltage: The input-output voltage differential at which the circuit ceases to regulate against further reduction in input voltage. Measured when the output voltage has dropped 100 mV from the nominal value obtained at 14V input, dropout voltage is dependent upon load current and junction tem ...
CBDS - Anasim
... LVDS links, ubiquitous for high-speed data interfaces, operate from high voltage supplies such as 3.3V. CBDS operates from high or low operating voltages such as 1V with upto 500mV signal swing, or 1V differentially. The lower supply voltage greatly reduces operating power, a critical design require ...
... LVDS links, ubiquitous for high-speed data interfaces, operate from high voltage supplies such as 3.3V. CBDS operates from high or low operating voltages such as 1V with upto 500mV signal swing, or 1V differentially. The lower supply voltage greatly reduces operating power, a critical design require ...
High Efficiency DC-DC Converters for Battery
... scheme, the transistor on-time t on is fixed by the control circuit. As a result, the energy transferred to the load during one switching period, W load , as well as the loss W loss incurred, are also fixed. The efficiency given by Eq. (4) is therefore independent of load current, and high efficienc ...
... scheme, the transistor on-time t on is fixed by the control circuit. As a result, the energy transferred to the load during one switching period, W load , as well as the loss W loss incurred, are also fixed. The efficiency given by Eq. (4) is therefore independent of load current, and high efficienc ...
Frequency and Voltage Scaling Design
... Libraries: To establish what voltage levels are needed for the selected clock frequence, we need do trial implementation at reduced voltages and measure the performance. Therefore we need libraries whose characterization extends beyond their nominal supply voltages. Switching Times and Algorithms: S ...
... Libraries: To establish what voltage levels are needed for the selected clock frequence, we need do trial implementation at reduced voltages and measure the performance. Therefore we need libraries whose characterization extends beyond their nominal supply voltages. Switching Times and Algorithms: S ...
Schematic Diagram Symbols
... Wires are connected with a dot at the junction. Wires that are not connected simply cross without a connection dot. If wires form a cross at their connection, it is better to stagger them forming ”t” junctions so that the connection is clear even if the connection dot is not. ...
... Wires are connected with a dot at the junction. Wires that are not connected simply cross without a connection dot. If wires form a cross at their connection, it is better to stagger them forming ”t” junctions so that the connection is clear even if the connection dot is not. ...
MC34151, MC33151 High Speed Dual MOSFET Drivers
... specifically designed for applications that require low current digital circuitry to drive large capacitive loads with high slew rates. These devices feature low input current making them CMOS and LSTTL logic compatible, input hysteresis for fast output switching that is independent of input transit ...
... specifically designed for applications that require low current digital circuitry to drive large capacitive loads with high slew rates. These devices feature low input current making them CMOS and LSTTL logic compatible, input hysteresis for fast output switching that is independent of input transit ...
RevG_102
... level if using the resistor method of impedance verification. In addition, the resistor method actually allows a generator that produces an Isc greater than +10% from the Isc in Table 22-2. For example: If you were performing a waveform 4, level 3 calibration, you would set the generator to produce ...
... level if using the resistor method of impedance verification. In addition, the resistor method actually allows a generator that produces an Isc greater than +10% from the Isc in Table 22-2. For example: If you were performing a waveform 4, level 3 calibration, you would set the generator to produce ...
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.