Power Supplies with TOPSwitch - Power Integrations - AC
... Table 1 gives an outline specification for a 25 W power supply with three outputs. Note that the 5 V output has the highest current and the tightest regulation, but the 12 V output delivers the highest power. The techniques presented here can be extended to any number of outputs. Some specific consi ...
... Table 1 gives an outline specification for a 25 W power supply with three outputs. Note that the 5 V output has the highest current and the tightest regulation, but the 12 V output delivers the highest power. The techniques presented here can be extended to any number of outputs. Some specific consi ...
Linear Circuit Experiment (MAE171a) Prof: Raymond de Callafon
... Unlike inverting summing amplifier, no extra resistor can be added to compensate for bias input current. Not desirable: source impedance part of gain calculation. . . MAE171a Linear Circuit Experiment, Winter 2009 – R.A. de Callafon – Slide 24 ...
... Unlike inverting summing amplifier, no extra resistor can be added to compensate for bias input current. Not desirable: source impedance part of gain calculation. . . MAE171a Linear Circuit Experiment, Winter 2009 – R.A. de Callafon – Slide 24 ...
Electrical properties study
... A source producing m.i.p. particles does not suit directly for such kind of measurements, since it leaves a track of primaries in as many straws as it has passed through. Both studied straws could be crossed by the m.i.p. particle, giving signals which have nothing to do with the cross-talk. On the ...
... A source producing m.i.p. particles does not suit directly for such kind of measurements, since it leaves a track of primaries in as many straws as it has passed through. Both studied straws could be crossed by the m.i.p. particle, giving signals which have nothing to do with the cross-talk. On the ...
© U n
... To read the state of the cell, the bit lines BL and BL' are precharged typically to close to VDD, and the word line WL is activated. This turns on the access transistors, and according to the state stored in the cell, one of the bit lines will be discharged. The differential voltage or the differen ...
... To read the state of the cell, the bit lines BL and BL' are precharged typically to close to VDD, and the word line WL is activated. This turns on the access transistors, and according to the state stored in the cell, one of the bit lines will be discharged. The differential voltage or the differen ...
CutPRO User Guide - Thermo Fisher Scientific
... correctly installed and the communicator is properly connected (see Chapter 2). It also assumes that the start-up tests have been performed (see Chapter 3). 1. Turn on the communicator and go to Device Setup > Application Select > API (Auto) (or SGU15C). The communicator asks you to set the loop to ...
... correctly installed and the communicator is properly connected (see Chapter 2). It also assumes that the start-up tests have been performed (see Chapter 3). 1. Turn on the communicator and go to Device Setup > Application Select > API (Auto) (or SGU15C). The communicator asks you to set the loop to ...
Technical Data
... The load noise is the noise of the fan itself at the point of operation. Fan characteristics include a "neck" (dip) in the plotted curves. This dip is caused by turbulence in the airflow on the propeller surfaces and noise increases steeply between this part and a low airflow region. The fan has an ...
... The load noise is the noise of the fan itself at the point of operation. Fan characteristics include a "neck" (dip) in the plotted curves. This dip is caused by turbulence in the airflow on the propeller surfaces and noise increases steeply between this part and a low airflow region. The fan has an ...
Aalborg Universitet Converters Applied to Wind Power Generation Systems
... the identification process and the time consumed in the detection is quite short, however, it is a quite inefficient way to detect faults as the faults are detected manually which has low efficiency, especially when a large number of switching devices and cells are involved. Moreover, these addition ...
... the identification process and the time consumed in the detection is quite short, however, it is a quite inefficient way to detect faults as the faults are detected manually which has low efficiency, especially when a large number of switching devices and cells are involved. Moreover, these addition ...
Optimal design of switched reluctance motors
... induction motors driven from electronic inverters. If the current waveform must be controlled to follow a sinusoidal function to eliminate torque ripple in the induction motor, then it can hardly be held against the switched reluctance motor that it too requires current waveshaping for the same purp ...
... induction motors driven from electronic inverters. If the current waveform must be controlled to follow a sinusoidal function to eliminate torque ripple in the induction motor, then it can hardly be held against the switched reluctance motor that it too requires current waveshaping for the same purp ...
LTC2945 Wide Range I C Power Monitor
... open-collector output from a master controller. An external pull-up resistor or current source is required and can be placed between SCL and VDD or INTVCC. The voltage at SCL is internally clamped to 6.4V (5.9V minimum) SDAI: I2C Bus Data Input. Used for shifting in address, command or data bits. Th ...
... open-collector output from a master controller. An external pull-up resistor or current source is required and can be placed between SCL and VDD or INTVCC. The voltage at SCL is internally clamped to 6.4V (5.9V minimum) SDAI: I2C Bus Data Input. Used for shifting in address, command or data bits. Th ...
MOSFET CURRENT SOURCE GATE DRIVERS AND VOLTAGE REGULATOR MODULES
... encouragement, guidance, and support throughout this thesis project. Their eagerness to share their knowledge, expertise and time is greatly appreciated. In addition, I would like to thank all of my past and present colleagues from the Queen’s Power Group. In particular, I would like to thank Wilson ...
... encouragement, guidance, and support throughout this thesis project. Their eagerness to share their knowledge, expertise and time is greatly appreciated. In addition, I would like to thank all of my past and present colleagues from the Queen’s Power Group. In particular, I would like to thank Wilson ...
System Operations Training Manual
... System Operations Training Manual Table of Contents Preface .......................................................................................................................................... viii Using the System Operations Training Manual (PDF) .............................................. ...
... System Operations Training Manual Table of Contents Preface .......................................................................................................................................... viii Using the System Operations Training Manual (PDF) .............................................. ...
SKELETON - Docbox
... formats range from traditional carrier based systems like OFDM over spread spectrum based system to carrier less systems based on base band pulses. The frequency regulation on the other side only defines a single set of transmission limits and values, which have to be fulfilled by all systems under ...
... formats range from traditional carrier based systems like OFDM over spread spectrum based system to carrier less systems based on base band pulses. The frequency regulation on the other side only defines a single set of transmission limits and values, which have to be fulfilled by all systems under ...
Aalborg Universitet SYSTEMS Choi, Uimin
... systems consist of various components, and among them, power semiconductor devices are one of the most fragile components. Thus, they play a key role in the robustness and reliability of the overall power electronic systems. Insulated Gate Bipolar Transistor (IGBT) power modules are the most widely ...
... systems consist of various components, and among them, power semiconductor devices are one of the most fragile components. Thus, they play a key role in the robustness and reliability of the overall power electronic systems. Insulated Gate Bipolar Transistor (IGBT) power modules are the most widely ...
ABB circuit-breakers for direct current applications
... Direct current is used (directly or indirectly through accumulator batteries) for all those plants for which service continuity represents a fundamental requirement. Such plants, which cannot tolerate a power failure caused, for example, by a loss of energy, need a readyto-use supply source, which, ...
... Direct current is used (directly or indirectly through accumulator batteries) for all those plants for which service continuity represents a fundamental requirement. Such plants, which cannot tolerate a power failure caused, for example, by a loss of energy, need a readyto-use supply source, which, ...
MAX9374/MAX9374A Differential LVPECL-to-LVDS Translators General Description Features
... (VCC = 2.375V to 2.625V for MAX9374, VCC = 3.0V to 3.6V for MAX9374A, 100Ω ±1% across outputs, VIHD - VILD = 0.15V to VCC or 3V, whichever is less, VIHD = 1.2V to VCC, VILD = GND to VCC - 0.15V, fIN = 1GHz, input transition time = 125ps, input duty cycle = 50%, unless otherwise noted. Typical values ...
... (VCC = 2.375V to 2.625V for MAX9374, VCC = 3.0V to 3.6V for MAX9374A, 100Ω ±1% across outputs, VIHD - VILD = 0.15V to VCC or 3V, whichever is less, VIHD = 1.2V to VCC, VILD = GND to VCC - 0.15V, fIN = 1GHz, input transition time = 125ps, input duty cycle = 50%, unless otherwise noted. Typical values ...
SIN AMICS Dr iv es
... our eco-management, and we implement these aims consistently. Right from product design, possible effects on the environment are examined. Hence many of our products and systems are RoHS compliant (Restriction of Haz ardous Substances). As a matter of course, our production sites are certified accor ...
... our eco-management, and we implement these aims consistently. Right from product design, possible effects on the environment are examined. Hence many of our products and systems are RoHS compliant (Restriction of Haz ardous Substances). As a matter of course, our production sites are certified accor ...
Troubleshooting Guide - Controlled Products Systems Group
... The Industrial Duty Logic Operator has many features reducing time required to identify and make repairs, as well as time spent training service technicians. Please note when working on an operator, always follow proper electrical safety guidelines and local codes. The transformer should produce 24V ...
... The Industrial Duty Logic Operator has many features reducing time required to identify and make repairs, as well as time spent training service technicians. Please note when working on an operator, always follow proper electrical safety guidelines and local codes. The transformer should produce 24V ...
AN-8208 Introduction to Automotive Ignition Systems Introduction
... IGBT, a drive circuit, a spark plug, and a control unit. Normally, the control unit in an automobile is called the Engine Control Unit (ECU), from which the ignition command signal is created and sent to the ignition IGBT driver. The ECU determines the ignition timing based on the engine speed, temp ...
... IGBT, a drive circuit, a spark plug, and a control unit. Normally, the control unit in an automobile is called the Engine Control Unit (ECU), from which the ignition command signal is created and sent to the ignition IGBT driver. The ECU determines the ignition timing based on the engine speed, temp ...
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.