College of Southern Nevada
... voltage often is expressed in terms of dBs, initial and final transmitter power when there is an upgrade can be expressed as a power gain in dBs, and other examples can be found in the fields of acoustics and optics. ...
... voltage often is expressed in terms of dBs, initial and final transmitter power when there is an upgrade can be expressed as a power gain in dBs, and other examples can be found in the fields of acoustics and optics. ...
Analysis of an Adaptive Observer for Sensorless Control of Interior
... with λ = 2R̂s and ωλ = 1 p.u. With the exception of very low speeds, the poles are located in the left half of the complex plane and the linearized system is stable. In the case of the zero gain in Fig. 4(a), one of the upper-half-plane poles shown remains near the imaginary axis but moves far away ...
... with λ = 2R̂s and ωλ = 1 p.u. With the exception of very low speeds, the poles are located in the left half of the complex plane and the linearized system is stable. In the case of the zero gain in Fig. 4(a), one of the upper-half-plane poles shown remains near the imaginary axis but moves far away ...
WT210/WT230 Digital Power Meters
... The built-in 5 mA range lets you measure currents as low as 25 µA. This makes it possible to measure very low currents on such things as intermittent control equipment. The wide current range (5 mA to 20 A) means a single power meter can be used for applications such as Energy Star® measuremnts, to ...
... The built-in 5 mA range lets you measure currents as low as 25 µA. This makes it possible to measure very low currents on such things as intermittent control equipment. The wide current range (5 mA to 20 A) means a single power meter can be used for applications such as Energy Star® measuremnts, to ...
LTC1064-1 - Low Noise, 8th Order, Clock Sweepable Elliptic
... ripple is typically ±0.15dB, and the stopband attenuation at 1.5 times the cutoff frequency is 68dB or more. An external TTL or CMOS clock programs the value of the filter’s cutoff frequency. The clock to cutoff frequency ratio is 100:1. No external components are needed for cutoff frequencies up to ...
... ripple is typically ±0.15dB, and the stopband attenuation at 1.5 times the cutoff frequency is 68dB or more. An external TTL or CMOS clock programs the value of the filter’s cutoff frequency. The clock to cutoff frequency ratio is 100:1. No external components are needed for cutoff frequencies up to ...
PowerLight Series PowerLight 6.0 II
... extraordinary audio performance, reduced weight, and road-proven reliability. To get the most from your investment, we encourage you to review this manual carefully. Part of the advanced technology PowerLight family of amplifiers, the PowerLight 6.0 II benefits from QSC’s exclusive PowerWave switchi ...
... extraordinary audio performance, reduced weight, and road-proven reliability. To get the most from your investment, we encourage you to review this manual carefully. Part of the advanced technology PowerLight family of amplifiers, the PowerLight 6.0 II benefits from QSC’s exclusive PowerWave switchi ...
Real-time adjustable gate current control IC solves dv/dt
... The fact of the new adjustability of dvCE/dt has a high importance for the lifetime of motor windings and motor bearings. Investigations already showed that the cost for filters or other countermeasures to limit the dv/dt are expensive ([10]) relative to the cost of the drive. A control of the dvCE/ ...
... The fact of the new adjustability of dvCE/dt has a high importance for the lifetime of motor windings and motor bearings. Investigations already showed that the cost for filters or other countermeasures to limit the dv/dt are expensive ([10]) relative to the cost of the drive. A control of the dvCE/ ...
TPS6513x Positive and Negative Output DC-DC
... 7.1 Overview The TPS6513x operates with an input voltage range of 2.7 V to 5.5 V and can generate both a positive and negative output. Both converters work independently of each other. They only share a common clock and a common voltage reference. Both outputs are separately controlled by a fixed-fr ...
... 7.1 Overview The TPS6513x operates with an input voltage range of 2.7 V to 5.5 V and can generate both a positive and negative output. Both converters work independently of each other. They only share a common clock and a common voltage reference. Both outputs are separately controlled by a fixed-fr ...
AD723 数据手册DataSheet下载
... roll-off in the sampled delay line. A final current mode buffer provides current drive for the LUMA output pin. The combined response of the luma input filter, delay line, and output filter has a bandwidth of 4.7 MHz for NTSC and 6.1 MHz for PAL. ...
... roll-off in the sampled delay line. A final current mode buffer provides current drive for the LUMA output pin. The combined response of the luma input filter, delay line, and output filter has a bandwidth of 4.7 MHz for NTSC and 6.1 MHz for PAL. ...
![Keyword: [GND Clamp Reference]](http://s1.studyres.com/store/data/000976400_1-7eb758db5d5f15c9e7ccb52b05ad3a84-300x300.png)
speed control of motor
... 4. It needs expensive arrangement for dissipation of heat produced in the controller resistance. 5. It gives speeds below the normal, not above it because armature voltage can be decreased (not increased) by the controller resistance. ...
... 4. It needs expensive arrangement for dissipation of heat produced in the controller resistance. 5. It gives speeds below the normal, not above it because armature voltage can be decreased (not increased) by the controller resistance. ...
APEJ-2014-06-0438
... mostly used for solar water pumping system. Such systems are of two types one is single-stage [8]-[12] and other is two-stage [13, 14]. In single stage, only VSI (Voltage Source Inverter) extracts the maximum power from SPV array and also controls the induction motor. In two stage system, a dc-dc co ...
... mostly used for solar water pumping system. Such systems are of two types one is single-stage [8]-[12] and other is two-stage [13, 14]. In single stage, only VSI (Voltage Source Inverter) extracts the maximum power from SPV array and also controls the induction motor. In two stage system, a dc-dc co ...
R225-10-1
... of the calculated transformer and secondary voltagedrop values. Another approach is suggested by the fact that the capacitors cause a specific and constant reduction in voltage drop along the line regardless of variations in service load. Most of the reduction is due to the effect of a leading capac ...
... of the calculated transformer and secondary voltagedrop values. Another approach is suggested by the fact that the capacitors cause a specific and constant reduction in voltage drop along the line regardless of variations in service load. Most of the reduction is due to the effect of a leading capac ...
Lab #6
... You will be provided with a npn BJT and should first produce a copy of the transistor's characteristics using the Tektronix 571 Curve Tracer. Your laboratory instructor will provide an overview regarding the operation and settings to use on the curve tracer. (a) With an RC and VCC as specified by yo ...
... You will be provided with a npn BJT and should first produce a copy of the transistor's characteristics using the Tektronix 571 Curve Tracer. Your laboratory instructor will provide an overview regarding the operation and settings to use on the curve tracer. (a) With an RC and VCC as specified by yo ...
Datasheet - Monolithic Power System
... The MP4033 is a TRIAC-dimmable primaryside–control, offline LED lighting controller with active PFC. It is also available for applications that requires analog dimming with PWM input. It outputs an accurate LED current for an isolated lighting application with a single-stage converter. The proprieta ...
... The MP4033 is a TRIAC-dimmable primaryside–control, offline LED lighting controller with active PFC. It is also available for applications that requires analog dimming with PWM input. It outputs an accurate LED current for an isolated lighting application with a single-stage converter. The proprieta ...
invertor/charger
... temperature and takes large amount of power from the mains. There are many devices in household with resistance heaters: ovens, irons, heaters, hair dryers (they have both the asynchronous motor and the resistance heater), etc. G250 is not designed for that kind of devices! . In case of overloading ...
... temperature and takes large amount of power from the mains. There are many devices in household with resistance heaters: ovens, irons, heaters, hair dryers (they have both the asynchronous motor and the resistance heater), etc. G250 is not designed for that kind of devices! . In case of overloading ...
apparent power - McGraw Hill Higher Education
... determine power factor and angle theta. Papp = 3 A x 30 V = 90 VA PF = cos q = P / Papp = 75.5 W / 90 VA = 0.839 q = arccos 0.839 = 33 ( Arccos means the angle that has this cos.) McGraw-Hill ...
... determine power factor and angle theta. Papp = 3 A x 30 V = 90 VA PF = cos q = P / Papp = 75.5 W / 90 VA = 0.839 q = arccos 0.839 = 33 ( Arccos means the angle that has this cos.) McGraw-Hill ...
MegaPulse 1.2x50 8x20-12P 12ohm rev 1.0
... AC line voltage requirements for your Tester are noted on the rear panel of the instrument. Do not connect the instrument to a different voltage source. The cord packaged with your MegaPulse Tester is for use in the United States. If another power cord must be used, the cord must be rated for the ma ...
... AC line voltage requirements for your Tester are noted on the rear panel of the instrument. Do not connect the instrument to a different voltage source. The cord packaged with your MegaPulse Tester is for use in the United States. If another power cord must be used, the cord must be rated for the ma ...
Relaying Short Lines - GE Grid Solutions Online Store
... Figure 4 shows the construction of a phase angle comparator mho distance unit on the RX dia ram. Note that as the fault location approaches the end of the line, the magnitude of the IZ-V (operating signal approaches zero. As the magnitude of IZ-V is reduced, the effect of any erroneous voltage, sueh ...
... Figure 4 shows the construction of a phase angle comparator mho distance unit on the RX dia ram. Note that as the fault location approaches the end of the line, the magnitude of the IZ-V (operating signal approaches zero. As the magnitude of IZ-V is reduced, the effect of any erroneous voltage, sueh ...
Sabertooth 2x25V2 - Dimension Engineering
... per cell is reached, the Sabertooth will shut down, preventing damage to the battery pack. This is necessary because a lithium battery pack discharged below 3.0V per cell will lose capacity and batteries discharged below 2.0V per cell may not ever recharge. Lithium cutoff mode may also be useful to ...
... per cell is reached, the Sabertooth will shut down, preventing damage to the battery pack. This is necessary because a lithium battery pack discharged below 3.0V per cell will lose capacity and batteries discharged below 2.0V per cell may not ever recharge. Lithium cutoff mode may also be useful to ...
IF 1513 Revision 1
... The W2H signaling devices may be mounted to any flat surface or may be used as a freestanding unit mounted to a rigid pipe. The W2H must be installed in accordance with the latest edition of the National Electrical Code or other regulations applicable to the country and locality of installation and ...
... The W2H signaling devices may be mounted to any flat surface or may be used as a freestanding unit mounted to a rigid pipe. The W2H must be installed in accordance with the latest edition of the National Electrical Code or other regulations applicable to the country and locality of installation and ...
2015 General Class FCC Element 3 Question Pool
... When choosing a transmitting frequency, what should you do to comply with good amateur practice? A. Insure that the frequency and mode selected are within your license class privileges B. Follow generally accepted band plans agreed to by the Amateur Radio community C. Monitor the frequency before tr ...
... When choosing a transmitting frequency, what should you do to comply with good amateur practice? A. Insure that the frequency and mode selected are within your license class privileges B. Follow generally accepted band plans agreed to by the Amateur Radio community C. Monitor the frequency before tr ...
Switching Operation Simulations in a Large Offshore
... model, XFMR. The leakage inductance and winding losses were estimated based on the manufacturer’s data. ...
... model, XFMR. The leakage inductance and winding losses were estimated based on the manufacturer’s 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.