Experiment 3
... the apparent power dissipated by the resistor (S=VI). Since the load was a pure resistance, the apparent power, S, was equal to the real power, P. Mathematically, one would say that P = VI cos . The power factor angle, , is the phase angle difference between the voltage phasor and the current phas ...
... the apparent power dissipated by the resistor (S=VI). Since the load was a pure resistance, the apparent power, S, was equal to the real power, P. Mathematically, one would say that P = VI cos . The power factor angle, , is the phase angle difference between the voltage phasor and the current phas ...
User_Guide - ElecFreaks
... greater than 2uF it will display ESR value. There is no need to distinguish the polar when connected. ...
... greater than 2uF it will display ESR value. There is no need to distinguish the polar when connected. ...
PDF
... Power optimization has become an important factor in designing a VLSI circuit. Earlier dynamic power was single largest concern but as transistor size decreases static power dominates the dynamic power. A comparable analysis of different low power, leakage current reduction techniques like sleep, st ...
... Power optimization has become an important factor in designing a VLSI circuit. Earlier dynamic power was single largest concern but as transistor size decreases static power dominates the dynamic power. A comparable analysis of different low power, leakage current reduction techniques like sleep, st ...
Pepco Holdings` Distributed Energy Resources
... Solar Utility Networks: Replicable Innovations in Solar Energy (SUNRISE) ...
... Solar Utility Networks: Replicable Innovations in Solar Energy (SUNRISE) ...
Manual
... Damage caused to the product by others or by any cause beyond the control of Glottal Enterprises, Inc., including but not limited to damage caused by misuse, abuse, mishandling, or by fire, flood, earthquake, storm, or other acts of nature. Claims under this Limited Warranty must be made in writing ...
... Damage caused to the product by others or by any cause beyond the control of Glottal Enterprises, Inc., including but not limited to damage caused by misuse, abuse, mishandling, or by fire, flood, earthquake, storm, or other acts of nature. Claims under this Limited Warranty must be made in writing ...
ADN8810 - Analog Devices
... power the external voltage reference. For best performance, AVDD should be low noise. DVDD provides power for the digital circuitry. This includes the serial interface logic, the SB and RESET logic inputs, and the FAULT output. Tie DVDD to the same supply line used for other digital circuitry. It is ...
... power the external voltage reference. For best performance, AVDD should be low noise. DVDD provides power for the digital circuitry. This includes the serial interface logic, the SB and RESET logic inputs, and the FAULT output. Tie DVDD to the same supply line used for other digital circuitry. It is ...
TS12001 - Silicon Labs
... device, and "Typical" parameters provided can and do vary in different applications. Application examples described herein are for illustrative purposes only. Silicon Laboratories reserves the right to make changes without further notice and limitation to product information, specifications, and des ...
... device, and "Typical" parameters provided can and do vary in different applications. Application examples described herein are for illustrative purposes only. Silicon Laboratories reserves the right to make changes without further notice and limitation to product information, specifications, and des ...
OctoberBest Quick Analog Design Presentation
... providing real time adjustments to range of operation ...
... providing real time adjustments to range of operation ...
waveshaping
... switching can be performed virtually instantaneously and the periodic time of the waveform can be varied over a wide range, from seconds to nanoseconds. If a square-wave is required with both positive and negative values, then two separate power sources are connected alternately by a switch S as sho ...
... switching can be performed virtually instantaneously and the periodic time of the waveform can be varied over a wide range, from seconds to nanoseconds. If a square-wave is required with both positive and negative values, then two separate power sources are connected alternately by a switch S as sho ...
Abstract - PG Embedded systems
... The dc component can cause line-frequency power ripple, dc-link voltage ripple, and a further second-order harmonic in the ac current. This paper has proposed an effective solution to minimize the dc component in three-phase ac currents and developed a software-based approach to mimic the blocking c ...
... The dc component can cause line-frequency power ripple, dc-link voltage ripple, and a further second-order harmonic in the ac current. This paper has proposed an effective solution to minimize the dc component in three-phase ac currents and developed a software-based approach to mimic the blocking c ...
(1)Ceramic capacitor
... Op-amp IC CA3130 (IC1) is used in the circuit as a current-to-voltage converter with capacitor C3 connected between its inverting and non-inverting inputs. It is a CMOS version using gate-protected p-channel MOSFET transistors in the input to provide very high input impedance, very low input current ...
... Op-amp IC CA3130 (IC1) is used in the circuit as a current-to-voltage converter with capacitor C3 connected between its inverting and non-inverting inputs. It is a CMOS version using gate-protected p-channel MOSFET transistors in the input to provide very high input impedance, very low input current ...
Modular multilevel converters with integrated batteries energy storage
... topology [5-7]. One of the main benefits of this layout is undoubtedly the possibility to integrate and adjust the required active power since each battery unit can operate at different power level, while maintaining a three-phase balanced line-toline voltage. Moreover, due to its success in HVDC ap ...
... topology [5-7]. One of the main benefits of this layout is undoubtedly the possibility to integrate and adjust the required active power since each battery unit can operate at different power level, while maintaining a three-phase balanced line-toline voltage. Moreover, due to its success in HVDC ap ...
Sensorless six-step BLDC commutation
... frequency of 20 KHz, then we will get a new sample of the polarity of the unenergized phase every 50 microseconds. We will therefore know, within a 50 microsecond resolution, when the polarity change or zero crossing occurs. This information is then used to drive the software commutation state machi ...
... frequency of 20 KHz, then we will get a new sample of the polarity of the unenergized phase every 50 microseconds. We will therefore know, within a 50 microsecond resolution, when the polarity change or zero crossing occurs. This information is then used to drive the software commutation state machi ...
Tuf-Lugger Cable Puller Data Sheet
... lengths of pipe and make up his own extension to reach up to higher locations or into manholes etc. High to Low Speed at the flick of a switch: This puller has an automatic clutch. The change from high to low speed is achieved by simply stopping the motor, flick the convenient HI/LO switch to the de ...
... lengths of pipe and make up his own extension to reach up to higher locations or into manholes etc. High to Low Speed at the flick of a switch: This puller has an automatic clutch. The change from high to low speed is achieved by simply stopping the motor, flick the convenient HI/LO switch to the de ...
Effective Estimation of Induction Motor Field Efficiency Based on On-site Measurements
... evaluation method, however, it is not suitable for field evaluation because this process involves the removal of motor from service to place it on a test stand and couple it to the dynamometer. It can be seen that this method is impractical and costly. In the field, one may estimate the efficiency b ...
... evaluation method, however, it is not suitable for field evaluation because this process involves the removal of motor from service to place it on a test stand and couple it to the dynamometer. It can be seen that this method is impractical and costly. In the field, one may estimate the efficiency b ...
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.