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... As environmental issues have attracted increasing worldwide attention in recent years, electric railways with low CO2 emissions are playing a key role. The railway industry expects the High Voltage Insulated Gate Bipolar Transistor (HVIGBT) to exhibit not only high reliability but also low power los ...
... As environmental issues have attracted increasing worldwide attention in recent years, electric railways with low CO2 emissions are playing a key role. The railway industry expects the High Voltage Insulated Gate Bipolar Transistor (HVIGBT) to exhibit not only high reliability but also low power los ...
S. Lim, J. Ranson, D.M. Otten and D.J. Perreault, Two-Stage Power Conversion Architecture Suitable for Wide Range Input Voltage, IEEE Transactions on Power Electronics , Vol. 30, No. 2, pp. 805-816, Feb. 2015.
... by the high-frequency regulation stage. Additionally, our system is designed to “merge” operation of the two stages. A benefit of such a “merged two-stage” architecture [12], [13] is that the second high-frequency stage can “soft charge/discharge” the energy transfer capacitors in the SC stage, reduc ...
... by the high-frequency regulation stage. Additionally, our system is designed to “merge” operation of the two stages. A benefit of such a “merged two-stage” architecture [12], [13] is that the second high-frequency stage can “soft charge/discharge” the energy transfer capacitors in the SC stage, reduc ...
SN65LBC182 数据资料 dataSheet 下载
... unterminated cable runs and longer stub lengths from the main backbone than possible with uncontrolled voltage transitions. The receiver design provides a fail-safe output of a high level when the inputs are left floating (open circuit). Very low device supply current can be achieved by disabling th ...
... unterminated cable runs and longer stub lengths from the main backbone than possible with uncontrolled voltage transitions. The receiver design provides a fail-safe output of a high level when the inputs are left floating (open circuit). Very low device supply current can be achieved by disabling th ...
Group 1 - UCF EECS
... Input voltage Input Frequency Output voltage Max current Typical Efficiency Enclosed fan Overvoltage protection Overcurrent protection Over Temperature Protection Size Cost ...
... Input voltage Input Frequency Output voltage Max current Typical Efficiency Enclosed fan Overvoltage protection Overcurrent protection Over Temperature Protection Size Cost ...
MAX1958/MAX1959 W-CDMA/N-CDMA Cellular Phone HBT PA Management ICs General Description
... The high-efficiency, pulse-width modulated (PWM), DCto-DC buck converter is optimized to provide a guaranteed output current of 800mA. The output voltage is dynamically controlled to produce any fixed-output voltage in the range of 0.75V to 3.4V (MAX1958) or 1V to 3.6V (MAX1959), with settling time ...
... The high-efficiency, pulse-width modulated (PWM), DCto-DC buck converter is optimized to provide a guaranteed output current of 800mA. The output voltage is dynamically controlled to produce any fixed-output voltage in the range of 0.75V to 3.4V (MAX1958) or 1V to 3.6V (MAX1959), with settling time ...
Keysight Technologies Power Conversion Efficiency Measurement
... you to multiply waveforms together. If you use this capability and multiply the voltage waveform times the current waveform, you will get an instantaneous power waveform. This waveform is instantaneous volt-amperes rather than the desired watts, so you will need to use additional scope measurement f ...
... you to multiply waveforms together. If you use this capability and multiply the voltage waveform times the current waveform, you will get an instantaneous power waveform. This waveform is instantaneous volt-amperes rather than the desired watts, so you will need to use additional scope measurement f ...
Banana Switch - T3 Nederland
... A Field Effect Transistor (FET) is a device that changes the conductivity of a circuit based on the voltage applied to the device. An FET has three legs named the gate, the source, and the drain. The two legs called the source and drain can be inserted into a circuit to act similarly to a switch con ...
... A Field Effect Transistor (FET) is a device that changes the conductivity of a circuit based on the voltage applied to the device. An FET has three legs named the gate, the source, and the drain. The two legs called the source and drain can be inserted into a circuit to act similarly to a switch con ...
Wheatstone bridge
... Usually the resolution limit of a measurement instrument with a pointer is defined by one tenth of the smallest division on the instrument scale (The minimum change that could be identified by eyes). If a change of δRS will cause the pointer of the galvanometer to move for a smallest division from i ...
... Usually the resolution limit of a measurement instrument with a pointer is defined by one tenth of the smallest division on the instrument scale (The minimum change that could be identified by eyes). If a change of δRS will cause the pointer of the galvanometer to move for a smallest division from i ...
202 ZRID Pty Ltd
... “Welding power sources, which are electronically controlled, shall be; fitted with a protection system, which switches off the voltage at the output terminals within 0.3 secs and shall not be reset automatically” Also stated in this CoP; Part 2.3 – Control the risks, there is a ‘hierarchy of risk co ...
... “Welding power sources, which are electronically controlled, shall be; fitted with a protection system, which switches off the voltage at the output terminals within 0.3 secs and shall not be reset automatically” Also stated in this CoP; Part 2.3 – Control the risks, there is a ‘hierarchy of risk co ...
2013 kcse muhoroni physics pp2
... You are given three bars. One is magnetized with opposite poles at its ends. Another is magnetized with consequent poles. The third is not magnetized. Describe an experiment which you would perform to identify each. ...
... You are given three bars. One is magnetized with opposite poles at its ends. Another is magnetized with consequent poles. The third is not magnetized. Describe an experiment which you would perform to identify each. ...
Components and Methods for Current Measurement
... cients between the heat producing metal The OARS (Open Air Resistor Surface and the dissipating circuit board material. Surface mount Mount) is a unique design that elevates the hot spot of components that are flat and parallel to the circuit board the resistive material well above the circuit board ...
... cients between the heat producing metal The OARS (Open Air Resistor Surface and the dissipating circuit board material. Surface mount Mount) is a unique design that elevates the hot spot of components that are flat and parallel to the circuit board the resistive material well above the circuit board ...
lab VII Wheatstone bridge
... Usually the resolution limit of a measurement instrument with a pointer is defined by one tenth of the smallest division on the instrument scale (The minimum change that could be identified by eyes). If a change of δRS will cause the pointer of the galvanometer to move for a smallest division from i ...
... Usually the resolution limit of a measurement instrument with a pointer is defined by one tenth of the smallest division on the instrument scale (The minimum change that could be identified by eyes). If a change of δRS will cause the pointer of the galvanometer to move for a smallest division from i ...
Radiation Detector High Voltage Shock Potential
... detectors to be interchanged easily. The center pin of this connector usually has a high voltage of approximately 500 to 2000 Vdc, with 900 Vdc being the most common voltage. Touching this center pin, or the center pin of a connecting cable, can result in an unpleasant shock-though not much differen ...
... detectors to be interchanged easily. The center pin of this connector usually has a high voltage of approximately 500 to 2000 Vdc, with 900 Vdc being the most common voltage. Touching this center pin, or the center pin of a connecting cable, can result in an unpleasant shock-though not much differen ...
Installation Instruction for Three Phase Wye, 277/480, 220/380, 230
... The following is a list of materials that may be needed for proper installation of this surge suppression device. This list is intended to help the installer anticipate materials needed for a successful installation. The installer should become familiar with the scope of work to avoid lost time and ...
... The following is a list of materials that may be needed for proper installation of this surge suppression device. This list is intended to help the installer anticipate materials needed for a successful installation. The installer should become familiar with the scope of work to avoid lost time and ...
T34123128
... distribution system have numerous nonlinear loads, which are significantly affecting the quality of power supply. As a result, the purity of waveform of supply lost. This ends up producing many power quality problems [1]. ...
... distribution system have numerous nonlinear loads, which are significantly affecting the quality of power supply. As a result, the purity of waveform of supply lost. This ends up producing many power quality problems [1]. ...
E-bomb PPT
... Coupling Modes: Front Door Coupling through antennas. l Destroys RF semiconductor devices in transmitters and receivers Back Door Coupling through power/data cabling, telephone wiring l Destroys exposed semiconductor devices l Punches through isolation transformers. ...
... Coupling Modes: Front Door Coupling through antennas. l Destroys RF semiconductor devices in transmitters and receivers Back Door Coupling through power/data cabling, telephone wiring l Destroys exposed semiconductor devices l Punches through isolation transformers. ...
P517/617 Lec10, P1 Review from last week: Flip-Flops: Basic counting unit in computer
... Thus the data on J and K must be stable for at least tsetup + thold. ...
... Thus the data on J and K must be stable for at least tsetup + thold. ...
BD244/ A/B/ C PNP Epitaxial Silicon Transistor
... or (b) support or sustain life, or (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in significant injury to the user. ...
... or (b) support or sustain life, or (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in significant injury to the user. ...
Bipolar Transistor 100V, 2A VCE(sat);0.6 max. PNP Single TP
... "standard application", intended for the use as general electronics equipment. The products mentioned herein shall not be intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace instrument, nuclear control device, burning appliances, transportati ...
... "standard application", intended for the use as general electronics equipment. The products mentioned herein shall not be intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace instrument, nuclear control device, burning appliances, transportati ...
差分放大器系列AD8253 数据手册DataSheet 下载
... for G = 1000. In addition to its wide input common voltage range, it boasts a high common-mode rejection of 100 dB at G = 1000 from dc to 20 kHz. The combination of precision dc performance coupled with high speed capabilities makes the AD8253 an excellent candidate for data acquisition. Furthermore ...
... for G = 1000. In addition to its wide input common voltage range, it boasts a high common-mode rejection of 100 dB at G = 1000 from dc to 20 kHz. The combination of precision dc performance coupled with high speed capabilities makes the AD8253 an excellent candidate for data acquisition. Furthermore ...
CURRENT, RESISTANCE, AND ELECTROMOTIVE FORCE
... SET UP: Solve for the current: I = JA = Jπ(D/2)2 EXECUTE: I = (1.50 106 A/m2)(π)[(0.00102 m)/2]2 = 1.23 A EVALUATE: This is a realistic current. (b) IDENTIFY: The current density is J = nqvd SET UP: Solve for the drift velocity: vd = J/nq EXECUTE: Since most laboratory wire is copper, we use the val ...
... SET UP: Solve for the current: I = JA = Jπ(D/2)2 EXECUTE: I = (1.50 106 A/m2)(π)[(0.00102 m)/2]2 = 1.23 A EVALUATE: This is a realistic current. (b) IDENTIFY: The current density is J = nqvd SET UP: Solve for the drift velocity: vd = J/nq EXECUTE: Since most laboratory wire is copper, we use the val ...
Input structure of AS3990
... Measurement gave -66 dBm., but sensitivity is limited by TX noise which is output power dependent. RX sensitivity is -66dBm on the differential mixer input and -73dBm on a single ended input mixer. Since the transponder's responses are typically higher than this levels, we normally use internal (in ...
... Measurement gave -66 dBm., but sensitivity is limited by TX noise which is output power dependent. RX sensitivity is -66dBm on the differential mixer input and -73dBm on a single ended input mixer. Since the transponder's responses are typically higher than this levels, we normally use internal (in ...
Determining the Relation between the Power
... The purpose of this lab was to determine the order of the equation of power radiated from an approximate black body as a function of its temperature. It is ideal to use a black body system, as it ideally absorbs all incident radiation. The discovery of the Stefan-Boltzmann power and temperature rela ...
... The purpose of this lab was to determine the order of the equation of power radiated from an approximate black body as a function of its temperature. It is ideal to use a black body system, as it ideally absorbs all incident radiation. The discovery of the Stefan-Boltzmann power and temperature rela ...
Switched-mode power supply
A switched-mode power supply (switching-mode power supply, switch-mode power supply, SMPS, or switcher) is an electronic power supply that incorporates a switching regulator to convert electrical power efficiently. Like other power supplies, an SMPS transfers power from a source, like mains power, to a load, such as a personal computer, while converting voltage and current characteristics. Unlike a linear power supply, the pass transistor of a switching-mode supply continually switches between low-dissipation, full-on and full-off states, and spends very little time in the high dissipation transitions, which minimizes wasted energy. Ideally, a switched-mode power supply dissipates no power. Voltage regulation is achieved by varying the ratio of on-to-off time. In contrast, a linear power supply regulates the output voltage by continually dissipating power in the pass transistor. This higher power conversion efficiency is an important advantage of a switched-mode power supply. Switched-mode power supplies may also be substantially smaller and lighter than a linear supply due to the smaller transformer size and weight.Switching regulators are used as replacements for linear regulators when higher efficiency, smaller size or lighter weight are required. They are, however, more complicated; their switching currents can cause electrical noise problems if not carefully suppressed, and simple designs may have a poor power factor.