The UC1901 Simplifies the Problem of Isolated
... available or built. Where small size is most important, a simple toroid core can be used. The second requirement of the transformer primarily determines the amount of magnetizing inductance it must have. The magnetizing inductance of a transformer refers to the actual inductance formed by the windin ...
... available or built. Where small size is most important, a simple toroid core can be used. The second requirement of the transformer primarily determines the amount of magnetizing inductance it must have. The magnetizing inductance of a transformer refers to the actual inductance formed by the windin ...
smith_wangaDAC3
... by 400mV over -40C to 85C (3.2 mV/˚C) • 1.1V reference varies by 150mV over -40C to 85C (1.2 mV/˚C) ...
... by 400mV over -40C to 85C (3.2 mV/˚C) • 1.1V reference varies by 150mV over -40C to 85C (1.2 mV/˚C) ...
ONEAC CDR Series Power Conditioners: The CDR series for mid
... Semiconductor processing and test equipment function by controlling and interpreting low level, high speed, digital and analog electric signals. Transient voltage events or disturbances on the incoming AC power service confuse and disrupt that process. As a result, tests may not correlate, system ac ...
... Semiconductor processing and test equipment function by controlling and interpreting low level, high speed, digital and analog electric signals. Transient voltage events or disturbances on the incoming AC power service confuse and disrupt that process. As a result, tests may not correlate, system ac ...
Sensors – Poles and Zeros
... seismic frequency band. It is extremely useful as a reference for assessing the quality of seismic stations, for predicting the detectability of small signals, and for the design of seismic sensors. Stationary seismic noise is normally measured in terms of acceleration power density. This density mu ...
... seismic frequency band. It is extremely useful as a reference for assessing the quality of seismic stations, for predicting the detectability of small signals, and for the design of seismic sensors. Stationary seismic noise is normally measured in terms of acceleration power density. This density mu ...
Multimeter Energy Meter
... electrical quantities of single and three-phase electricenergy system. The MC330 and MC320 record energy like the electricity meter in all four quadrants in up to four tariffs. Up to 2 pulse outputs or 2 tariff inputs are available for measurements control. MC330 can use pulse output as alarm output ...
... electrical quantities of single and three-phase electricenergy system. The MC330 and MC320 record energy like the electricity meter in all four quadrants in up to four tariffs. Up to 2 pulse outputs or 2 tariff inputs are available for measurements control. MC330 can use pulse output as alarm output ...
iFLEX E2 / E5 - Laguna Crane Services
... ► Supports SAE J1939 ► Simple system diagnosis with numeric code ► Real-time clock ► SRAM, battery-buffered ► Extended temperature range ...
... ► Supports SAE J1939 ► Simple system diagnosis with numeric code ► Real-time clock ► SRAM, battery-buffered ► Extended temperature range ...
150Lecture 8 A/C and Voltage, Power Lecture Notes Page
... Nissan Motor Co., Ltd. will launch the "LEAF to Home" power supply system, which can supply electricity from batteries onboard in Nissan LEAF electric vehicles (EV) to homes when used with the "EV Power Station" unit developed by Nichicon Corporation. "LEAF to Home" is an industry first backup powe ...
... Nissan Motor Co., Ltd. will launch the "LEAF to Home" power supply system, which can supply electricity from batteries onboard in Nissan LEAF electric vehicles (EV) to homes when used with the "EV Power Station" unit developed by Nichicon Corporation. "LEAF to Home" is an industry first backup powe ...
Chapter 5
... of the patient/contrast agent being used -kVp energy changes are made via an AUTOTRANSFORMER – which uses one winding with variable “tabs” to enable one to select the varied kVp’s -Increasing kVp’s will increase the energy of the x-ray photons produced Transformer law is the relationship of windings ...
... of the patient/contrast agent being used -kVp energy changes are made via an AUTOTRANSFORMER – which uses one winding with variable “tabs” to enable one to select the varied kVp’s -Increasing kVp’s will increase the energy of the x-ray photons produced Transformer law is the relationship of windings ...
Programming Logic Controllers
... energized (magnetized) de-energized (demagnetized) Power relay (contactor) or control relay (relay) Power relay Uses a small amount of voltage to control a large amount ...
... energized (magnetized) de-energized (demagnetized) Power relay (contactor) or control relay (relay) Power relay Uses a small amount of voltage to control a large amount ...
Ship Electric Power Systems 10 of the Topics at UT Austin
... • Can produce practically any complex voltage waveform – single or multiple harmonics, or sinusoidal. Repeatedly. The interaction between harmonic voltage and load current can be analyzed. ...
... • Can produce practically any complex voltage waveform – single or multiple harmonics, or sinusoidal. Repeatedly. The interaction between harmonic voltage and load current can be analyzed. ...
Model Viva Questions for “communication lab”
... Q3 Tell use of optical fiber? A3Optical fibers are widely used in fiber-optic communications, which permits transmission over longer distances and at higher bandwidths (data rates) than other forms of communication Q4Define MMF and SMF? A4Fibers which support many propagation paths or transverse are ...
... Q3 Tell use of optical fiber? A3Optical fibers are widely used in fiber-optic communications, which permits transmission over longer distances and at higher bandwidths (data rates) than other forms of communication Q4Define MMF and SMF? A4Fibers which support many propagation paths or transverse are ...
UC3851 数据资料 dataSheet 下载
... CR is normally selected ≤ CT and its value will have some effect upon valley duty cycle. Limiting the minimum value for ISENSE into pin 11 will establish a maximum duty cycle clamp. CR terminal can be used as an input port for current mode control. Conventional operational amplifier for closed-loop ...
... CR is normally selected ≤ CT and its value will have some effect upon valley duty cycle. Limiting the minimum value for ISENSE into pin 11 will establish a maximum duty cycle clamp. CR terminal can be used as an input port for current mode control. Conventional operational amplifier for closed-loop ...
A DC–DC Quad Active Bridge Converter Based Hybrid
... resources and distributed energy storage, thus enhancing the reliability of the distribution system. Besides the advantage of its reduced size and weight due to its high frequency (HF) transformer, the SST makes use of state-of-the-art Power Electronics devices that allows it to provide additional f ...
... resources and distributed energy storage, thus enhancing the reliability of the distribution system. Besides the advantage of its reduced size and weight due to its high frequency (HF) transformer, the SST makes use of state-of-the-art Power Electronics devices that allows it to provide additional f ...
Massachusetts Institute of Technology
... will cause the rotor to have an electrical frequency different from the stator. The stator is supplying rated volt-amperes at a power factor of 0.8 (so that the stator is supplying VARs). What is the complex power required into the rotor terminals if the machine speed is: 1. 70% of synchronous? 2. 13 ...
... will cause the rotor to have an electrical frequency different from the stator. The stator is supplying rated volt-amperes at a power factor of 0.8 (so that the stator is supplying VARs). What is the complex power required into the rotor terminals if the machine speed is: 1. 70% of synchronous? 2. 13 ...
In this paper, a three-level quasi-two-stage single
... switches and stored by intermediate passive components (either inductors or capacitors) before being supplied to the end loads. This indicates that the components will be working under increased voltage/current stresses, which may consequently lead to decreased power density and conversion efficienc ...
... switches and stored by intermediate passive components (either inductors or capacitors) before being supplied to the end loads. This indicates that the components will be working under increased voltage/current stresses, which may consequently lead to decreased power density and conversion efficienc ...
LS7290 - LSI CSI
... 1/4, 1/8, 1/16 or 1/32 microsteps. The LS7290 uses 32 microstepping phase controls for each motor step in half step or in 1/4, 1/8, 1/16 or 1/32 microsteps. The LS7290 uses stepping as shown in Table 2 for full step control. A table pointer is used which is incremented or decremented by a value dete ...
... 1/4, 1/8, 1/16 or 1/32 microsteps. The LS7290 uses 32 microstepping phase controls for each motor step in half step or in 1/4, 1/8, 1/16 or 1/32 microsteps. The LS7290 uses stepping as shown in Table 2 for full step control. A table pointer is used which is incremented or decremented by a value dete ...
International Electrical Engineering Journal (IEEJ) Vol. 5 (2014) No.7, pp. 1484-1489
... varying analog signals; this PWM conversion generally has a very high electrical efficiency [3]. In controlling either a three phase synchronous motor or a three phase induction motor it is desirable to receive a perfectly sinusoidal current waveform in motor windings, with relative phase displaceme ...
... varying analog signals; this PWM conversion generally has a very high electrical efficiency [3]. In controlling either a three phase synchronous motor or a three phase induction motor it is desirable to receive a perfectly sinusoidal current waveform in motor windings, with relative phase displaceme ...
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.