WEG launches new cost-effective variable speed drive with
... WEG3180_Figure 2: WEG's SuperDrive programming software enables users to download and upload configuration parameters, operate and monitor the variable speed drive, program it offline and diagnose the drive at any time using the trace function. ...
... WEG3180_Figure 2: WEG's SuperDrive programming software enables users to download and upload configuration parameters, operate and monitor the variable speed drive, program it offline and diagnose the drive at any time using the trace function. ...
File - Solayman EWU
... remaining terminal is what is known as “common". In this example, the signal enters the gate, and exits the drain. The only terminal remaining is the source. This is common-source FET circuit. As a voltage amplifier, input voltage modulates the amount of current flowing through the FET, changing the ...
... remaining terminal is what is known as “common". In this example, the signal enters the gate, and exits the drain. The only terminal remaining is the source. This is common-source FET circuit. As a voltage amplifier, input voltage modulates the amount of current flowing through the FET, changing the ...
LECTURE 4
... triangular output. The square wave is applied to a square-tosine wave converter that filters out the odd harmonics making u the square wave while passing on only the fundamental sine wave. The operation of the circuit can be analyzed by starting at the output of the comparator, which la at either ...
... triangular output. The square wave is applied to a square-tosine wave converter that filters out the odd harmonics making u the square wave while passing on only the fundamental sine wave. The operation of the circuit can be analyzed by starting at the output of the comparator, which la at either ...
GNS RF2422
... The input of the phase shifting network. This pin has an internal DC-blocking capacitor. At frequencies higher than 2GHz this port is well-matched to 50. This port is voltage driven so matching at lower frequencies is not required. Power supply for all circuits except the RF output stage. An extern ...
... The input of the phase shifting network. This pin has an internal DC-blocking capacitor. At frequencies higher than 2GHz this port is well-matched to 50. This port is voltage driven so matching at lower frequencies is not required. Power supply for all circuits except the RF output stage. An extern ...
E6-12 - Stanford University
... For the variable resistor JFET circuit in Figure 2, check if the 100k potentiometer can adjust the gate voltage (VGS) from 0 volts all the way to the pinch off, or threshold, voltage VP (VGS (OFF) on the datasheet). Use the datasheet for the 2N5485 JFET in Coursework. Make sure you account for the e ...
... For the variable resistor JFET circuit in Figure 2, check if the 100k potentiometer can adjust the gate voltage (VGS) from 0 volts all the way to the pinch off, or threshold, voltage VP (VGS (OFF) on the datasheet). Use the datasheet for the 2N5485 JFET in Coursework. Make sure you account for the e ...
Chip Detects Shorts and Overloads, Measures Current
... the motor-side and microcontroller/DSP side so you don't have to include an isolation amplifier or opto-isolator or any sensor signal-conditioning components. The 16-pin IC (SO-16 package) costs about $9.50 for a single device. Find more information at www.avagotech.com (search for "HCPL-788J"). The ...
... the motor-side and microcontroller/DSP side so you don't have to include an isolation amplifier or opto-isolator or any sensor signal-conditioning components. The 16-pin IC (SO-16 package) costs about $9.50 for a single device. Find more information at www.avagotech.com (search for "HCPL-788J"). The ...
Definition Crest Factor - AMETEK Programmable Power
... as that which a pure resistive load would draw, is 1.414 since the peak of a true sinusoid is 1.414 times the rms value. However, the crest factor for a non-sinusoidal current waveform can differ dramatically for loads that are not power factor corrected, such as a switching power supply or lamp bal ...
... as that which a pure resistive load would draw, is 1.414 since the peak of a true sinusoid is 1.414 times the rms value. However, the crest factor for a non-sinusoidal current waveform can differ dramatically for loads that are not power factor corrected, such as a switching power supply or lamp bal ...
Door-Opening Alarm
... smoothens the D.C. Output received from this filter is constant until the mains voltage and load is maintained constant. However, if either of the two is varied, D.C. voltage received at this point changes. Therefore a regulator is applied at the output stage. ...
... smoothens the D.C. Output received from this filter is constant until the mains voltage and load is maintained constant. However, if either of the two is varied, D.C. voltage received at this point changes. Therefore a regulator is applied at the output stage. ...
Softstart
... TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS PRODUCT TO RAIN OR MOISTURE. ...
... TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS PRODUCT TO RAIN OR MOISTURE. ...
EE311: Junior EE Lab 555 Timer
... – an astable multivibrator, i.e., an oscillator – behavior dependent on external R, C values ...
... – an astable multivibrator, i.e., an oscillator – behavior dependent on external R, C values ...
Synchronous Motors
... Motor-to-Generator Transition (cont) • Begin with motor driven from the infinite bus and the turbine torque in the same direction as the motor torque. • The motor operates normally, driving the water pump. ...
... Motor-to-Generator Transition (cont) • Begin with motor driven from the infinite bus and the turbine torque in the same direction as the motor torque. • The motor operates normally, driving the water pump. ...
Principles of Electronic Communication Systems
... voltages, with the readout given in root-mean-square ...
... voltages, with the readout given in root-mean-square ...
Pi Controlled DC-DC Converter Based on Three-State
... Abstract— This paper introduces a new family of PWM DC-DC non-isolated converters By substituting the converter-cell all the DC-DC converter topologies (the buck configuration) is obtained. The new converters are generated using three-state commutation cells. Comprising two active switches, two diod ...
... Abstract— This paper introduces a new family of PWM DC-DC non-isolated converters By substituting the converter-cell all the DC-DC converter topologies (the buck configuration) is obtained. The new converters are generated using three-state commutation cells. Comprising two active switches, two diod ...
G028030
... A relay is an electrically operated switch. Many relays use an electromagnet to operate a switching mechanism, but other operating principles are also used. Relays find applications where it is necessary to control a circuit by a low-power signal, or where several circuits must be controlled by one ...
... A relay is an electrically operated switch. Many relays use an electromagnet to operate a switching mechanism, but other operating principles are also used. Relays find applications where it is necessary to control a circuit by a low-power signal, or where several circuits must be controlled by one ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
... Hysteresis-band PWM is basically an instantaneous feedback current control method of PWM where the actual current continually tracks the command current within a hysteresis band. This is a simple current control method where hysteresis comparators are used to impose a dead band or hysteresis around ...
... Hysteresis-band PWM is basically an instantaneous feedback current control method of PWM where the actual current continually tracks the command current within a hysteresis band. This is a simple current control method where hysteresis comparators are used to impose a dead band or hysteresis around ...
The Technology in the Parasound Halo CD 1
... All resistors on the digital input and DAC sections are 0.1% tolerance thin-film surfacemounted. Small thin-film resistors have up to 20dB less “shot noise” or voltage-dependent noise than conventional resistors due to the laser trimming of the thinner resistive film. The laser “burning” pollutes th ...
... All resistors on the digital input and DAC sections are 0.1% tolerance thin-film surfacemounted. Small thin-film resistors have up to 20dB less “shot noise” or voltage-dependent noise than conventional resistors due to the laser trimming of the thinner resistive film. The laser “burning” pollutes th ...
leds and resistor values
... Resistors are only made in certain values. They are based on the ‘E12 series of preferred values’. These are ...
... Resistors are only made in certain values. They are based on the ‘E12 series of preferred values’. These are ...
IXLD02SI Data Sheet
... FIN frequency in this figure is held constant. At T0 the IPW and the IOP signals are near zero, both begin to ramp up at T1 and reach their maximums at T2. As illustrated, the output current rises in amplitude with the increasing IOP and the pulse width widens with the IPW ramp. An additional mode o ...
... FIN frequency in this figure is held constant. At T0 the IPW and the IOP signals are near zero, both begin to ramp up at T1 and reach their maximums at T2. As illustrated, the output current rises in amplitude with the increasing IOP and the pulse width widens with the IPW ramp. An additional mode o ...
MCW100C, E Time Proportional Rotary Position
... Two modules are housed in the case of the Controller. The grade sensing module electromagnetically measures the deviation between the true grade of the machine through the follower. The amplifier module receives the signal from the sensor module and produces a voltage output to drive solenoid valves ...
... Two modules are housed in the case of the Controller. The grade sensing module electromagnetically measures the deviation between the true grade of the machine through the follower. The amplifier module receives the signal from the sensor module and produces a voltage output to drive solenoid valves ...
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.