Power MOSFET failures in mobile PMUs: Causes and design
... tracks have been widened and include liberal use of larger vias. This recommendation became a viable solution for the customer. In 2012, another customer reported experiencing some failures with another PMU of the same family that had dual buck converters and dual LDOs. The buck-converter switches e ...
... tracks have been widened and include liberal use of larger vias. This recommendation became a viable solution for the customer. In 2012, another customer reported experiencing some failures with another PMU of the same family that had dual buck converters and dual LDOs. The buck-converter switches e ...
Solid State Drives 7th Semester
... probably the best option for the constant speed applications. Other motors, such ...
... probably the best option for the constant speed applications. Other motors, such ...
Abstract-Voltage stability is the ability of a power system to
... a prime mover or a mechanical load. By controlling the field excitation, it can be made to either generate or absorb reactive power. They can automatically adjust the reactive power output to maintain constant terminal voltage with a voltage regulator. Static var compensators are shunt-connected sta ...
... a prime mover or a mechanical load. By controlling the field excitation, it can be made to either generate or absorb reactive power. They can automatically adjust the reactive power output to maintain constant terminal voltage with a voltage regulator. Static var compensators are shunt-connected sta ...
Demonstration of a Fiber Powered Extender for PON
... to ± 190 Vdc through the deployment of dc-dc converters, named converters. The ±190 V is carried over copper pairs to the destination, where this voltage is converted back to -48 Vdc or -12 Vdc. , which is named down converter. The type of cable, the distance from the CO, and power consumption are p ...
... to ± 190 Vdc through the deployment of dc-dc converters, named converters. The ±190 V is carried over copper pairs to the destination, where this voltage is converted back to -48 Vdc or -12 Vdc. , which is named down converter. The type of cable, the distance from the CO, and power consumption are p ...
Lab Manual
... 80C51 Microcontroller :All 80C51 devices have separate address spaces for program and data memory, as shown in Figures 1 and 2. The logical separation of program and data memory allows the data memory to be accessed by 8-bit addresses, which can be quickly stored and manipulated by an 8-bit CPU. Nev ...
... 80C51 Microcontroller :All 80C51 devices have separate address spaces for program and data memory, as shown in Figures 1 and 2. The logical separation of program and data memory allows the data memory to be accessed by 8-bit addresses, which can be quickly stored and manipulated by an 8-bit CPU. Nev ...
Parasitic Inductance Effect on Switching Losses for a High
... The steady decrease in IC system voltages along with the sharp rise in power requirements result in significant current being delivered from the power supply [1]. This trend coupled with the increase in switching speeds of power semiconductor devices, due to the technology transfer from bipolar to M ...
... The steady decrease in IC system voltages along with the sharp rise in power requirements result in significant current being delivered from the power supply [1]. This trend coupled with the increase in switching speeds of power semiconductor devices, due to the technology transfer from bipolar to M ...
Profesor Facultad de Minas, Universidad Nacional de Colombia
... DC/DC and DC/AC converters [7]. The doublestage approach is widely accepted due to its application in distributed generation system based on multiple generators [2], as well as in stand-alone DC applications, where a single DC/DC converter is required [4]. The PV applications commonly adopt boosting ...
... DC/DC and DC/AC converters [7]. The doublestage approach is widely accepted due to its application in distributed generation system based on multiple generators [2], as well as in stand-alone DC applications, where a single DC/DC converter is required [4]. The PV applications commonly adopt boosting ...
UPS Parallel Operation Analysis Considering Line
... when a resistance load is applied to a real unit having almost the same circuit configuration as the model shown in Fig. 3. From this graph, one can see that the UPS can be loaded to reduce the output voltage by about 8V. In actual practice, it is not that all causes are related to the r s . Strictl ...
... when a resistance load is applied to a real unit having almost the same circuit configuration as the model shown in Fig. 3. From this graph, one can see that the UPS can be loaded to reduce the output voltage by about 8V. In actual practice, it is not that all causes are related to the r s . Strictl ...
High-Power and Long-Pulse Injection with Negative-Ion
... Fig. 4 Schematic diagram of the negative ion source in the to a back-plate of the arc LHD negative-NBI. chamber, and caesium vapour is injected remotely through an air-actuated valve, and the injection rate is controlled with the oven temperature. The negative ion accelerator is a single-stage accel ...
... Fig. 4 Schematic diagram of the negative ion source in the to a back-plate of the arc LHD negative-NBI. chamber, and caesium vapour is injected remotely through an air-actuated valve, and the injection rate is controlled with the oven temperature. The negative ion accelerator is a single-stage accel ...
Power supplies and DC/DC converters
... (with cover) the units suit for 1 U applications. The units are fully approved to EN60950, EN61010 and EN60601 and could be used in all areas of test, automation, and medical. Both units are availalbe as open frame units and with several case options, starting with a similar U-bracket up to a comple ...
... (with cover) the units suit for 1 U applications. The units are fully approved to EN60950, EN61010 and EN60601 and could be used in all areas of test, automation, and medical. Both units are availalbe as open frame units and with several case options, starting with a similar U-bracket up to a comple ...
High-Frequency Power Transformers
... Exercise 1 – High-Frequency Power Transformer Operation Discussion As the load increases, the voltage at the dc output of an SMPS decreases because voltage drops across the various circuit components (diodes, electronic switches, and the HF power transformer) increase. This is similar to the volt ...
... Exercise 1 – High-Frequency Power Transformer Operation Discussion As the load increases, the voltage at the dc output of an SMPS decreases because voltage drops across the various circuit components (diodes, electronic switches, and the HF power transformer) increase. This is similar to the volt ...
Document
... T. Kuwabara, A. Shibuja, H. Furata, “Design and dynamic response characteristics of 400 MW adjustable speed pump storage unit at Ohkawachi power station”, IEEE Transactions, Vol. EC – 11, No. 2, 1996, pp. 376 – 384. ...
... T. Kuwabara, A. Shibuja, H. Furata, “Design and dynamic response characteristics of 400 MW adjustable speed pump storage unit at Ohkawachi power station”, IEEE Transactions, Vol. EC – 11, No. 2, 1996, pp. 376 – 384. ...
ON THE DESIGN OF LOW-POWER ... RESISTIVE SENSORS Ramon Casanella
... comparable to that of the amplifier. Therefore, a much less significant power reduction would be achieved in exchange for the increased noise due to the higher gain. The fact that when selecting R1 >> Rs the output of the voltage divider is very close to 0 V, is another advantage of the proposed app ...
... comparable to that of the amplifier. Therefore, a much less significant power reduction would be achieved in exchange for the increased noise due to the higher gain. The fact that when selecting R1 >> Rs the output of the voltage divider is very close to 0 V, is another advantage of the proposed app ...
Voltage-Source Active Power Filter Based on Multilevel Converter
... the proposed topology for a shunt APF using the multilevel converter described before. It can be seen that the voltage generated by this filter is quite similar to a sinusoidal waveform. The small steps of each level are almost negligible. The contrast between these two technologies is evident. One ...
... the proposed topology for a shunt APF using the multilevel converter described before. It can be seen that the voltage generated by this filter is quite similar to a sinusoidal waveform. The small steps of each level are almost negligible. The contrast between these two technologies is evident. One ...
technical memo on power-frequency electric and magnetic fields
... does act as a source for magnetic fields, it is anticipated that the attenuation rate from this equipment would be similar to that of other substation equipment (decreasing rapidly with distance away from the equipment). Similarly, this type of equipment would typically be located centrally within t ...
... does act as a source for magnetic fields, it is anticipated that the attenuation rate from this equipment would be similar to that of other substation equipment (decreasing rapidly with distance away from the equipment). Similarly, this type of equipment would typically be located centrally within t ...
Sorensen XG 1500 Series 1500 W 6–600 V 2.6–187.5 A
... the logical-high or -low is free selectable. Thus enabling the XG 1500 to replace existing power supplies with little or no system engineering required. Free selectable analog control range Most DC power supplies provide a 0 to 5 or 0 to 10 V analog control range to control the DC output from zero t ...
... the logical-high or -low is free selectable. Thus enabling the XG 1500 to replace existing power supplies with little or no system engineering required. Free selectable analog control range Most DC power supplies provide a 0 to 5 or 0 to 10 V analog control range to control the DC output from zero t ...
- IJSRSET
... introduced in 1970 by a numerical analyst Cleve change in the X/R ratio of fault to source Moler, who wrote the first version of MATLAB. impedance which will affect the magnitude as well SIMULINK is a commercial tool furnished by Math as phase-angle jump. In the next context, a Works Inc. that comes ...
... introduced in 1970 by a numerical analyst Cleve change in the X/R ratio of fault to source Moler, who wrote the first version of MATLAB. impedance which will affect the magnitude as well SIMULINK is a commercial tool furnished by Math as phase-angle jump. In the next context, a Works Inc. that comes ...
pm700 installation manual
... Only qualified electrical workers should install this equipment. Such work should be performed only after reading this entire set of instructions. NEVER work alone. Before performing visual inspections, tests, or maintenance on this equipment, disconnect all sources of electric power. Assume that al ...
... Only qualified electrical workers should install this equipment. Such work should be performed only after reading this entire set of instructions. NEVER work alone. Before performing visual inspections, tests, or maintenance on this equipment, disconnect all sources of electric power. Assume that al ...
Kit Instructions - Jameco Electronics
... 2- Only two ports of the microcontroller to change the rotation direction of two small electric motors. 3- One port to control speed of rotation (PWM control). The digital pins PD4, PD3 of microcontroller Atmega 328, control the rotation direction of motors, and the pin PD6, control the speed of rot ...
... 2- Only two ports of the microcontroller to change the rotation direction of two small electric motors. 3- One port to control speed of rotation (PWM control). The digital pins PD4, PD3 of microcontroller Atmega 328, control the rotation direction of motors, and the pin PD6, control the speed of rot ...
Electrification
Electrification is the process of powering by electricity and is usually associated with changing over from another power source. The broad meaning of the term, such as in the history of technology and economic history, usually applies to a region or national economy. Broadly speaking, electrification was the build out of the electrical generating and distribution systems which occurred in Britain, the United States, and other countries from the mid-1880s until around 1950 and is in progress in rural areas in some developing countries. This included the change over from line shaft and belt drive using steam engines and water power to electric motors.The electrification of particular sectors of the economy is called by terms such as factory electrification, household electrification, rural electrification or railway electrification. It may also apply to changing industrial processes such as smelting, melting, separating or refining from coal or coke heating or chemical processes to some type of electric process such as electric arc furnace, electric induction or resistance heating or electrolysis or electrolytic separating.Electrification was called ""the greatest engineering achievement of the 20th Century"" by the National Academy of Engineering.