three-level npc inverter used in ups
... The requirements in reliability and capacity are increasing in various industrial applications. Such as the medium voltage uninterruptible power system (UPS) which is widely used for high speed elevators, high-power electric drives and distributed generation systems as an interface between the utili ...
... The requirements in reliability and capacity are increasing in various industrial applications. Such as the medium voltage uninterruptible power system (UPS) which is widely used for high speed elevators, high-power electric drives and distributed generation systems as an interface between the utili ...
Line to Ground Voltage Monitoring on Ungrounded
... would be slightly larger than the system capacitive charging current. This provides the highest value of resistance that is acceptable (hence High Resistance Ground). The grounding resistance can be smaller than this value. But at these lower values the magnitude of ground fault current increases. S ...
... would be slightly larger than the system capacitive charging current. This provides the highest value of resistance that is acceptable (hence High Resistance Ground). The grounding resistance can be smaller than this value. But at these lower values the magnitude of ground fault current increases. S ...
1.Integrating Coupled Inductor and Switched - ISSN:2454-356X
... converter. However, the voltage gain of these converters is only moderately high. The energy stored in the leakage inductance is recycled to improve the performance of the presented converter. Furthermore, voltage stress on the main power switch is reduced. Therefore, a switch with a low on-state re ...
... converter. However, the voltage gain of these converters is only moderately high. The energy stored in the leakage inductance is recycled to improve the performance of the presented converter. Furthermore, voltage stress on the main power switch is reduced. Therefore, a switch with a low on-state re ...
External Characteristic of Separately Excited DC Generator
... terminal voltage of the machine increases. But after reaching its maximum value it starts to decrease due to excessive demagnetizing effect of armature reaction. This phenomenon is shown in the figure by the dotted line. Dotted portion of the characteristic gives approximately constant electric cu ...
... terminal voltage of the machine increases. But after reaching its maximum value it starts to decrease due to excessive demagnetizing effect of armature reaction. This phenomenon is shown in the figure by the dotted line. Dotted portion of the characteristic gives approximately constant electric cu ...
SA-A70-24MCC - P84501
... same protected area. This control unit does not generate a temporal pattern signal. If the distinctive three-pulse temporal pattern Fire Alarm Evacuation (or total evacuation) in accordance with NFPA 72, 1999 Edition is required, the control unit must be used with appliances that can generate the te ...
... same protected area. This control unit does not generate a temporal pattern signal. If the distinctive three-pulse temporal pattern Fire Alarm Evacuation (or total evacuation) in accordance with NFPA 72, 1999 Edition is required, the control unit must be used with appliances that can generate the te ...
RF6280 Preliminary
... DC-DC buck converter operation involves the stepping down of a higher battery voltage to a lower output voltage by the alternate switching of a PFET and NFET pair through an external LC filter. The desired output voltage, together with the battery voltage, primarily determine the duty cycle of the P ...
... DC-DC buck converter operation involves the stepping down of a higher battery voltage to a lower output voltage by the alternate switching of a PFET and NFET pair through an external LC filter. The desired output voltage, together with the battery voltage, primarily determine the duty cycle of the P ...
LP339 数据资料 dataSheet 下载
... 3. This input current only exists when the voltage at any of the inputs is driven negative. The current flows through the collector-base junction of the input clamping device. In addition to the clamping device action, there is lateral n-p-n parasitic transistor action. This action is not destructiv ...
... 3. This input current only exists when the voltage at any of the inputs is driven negative. The current flows through the collector-base junction of the input clamping device. In addition to the clamping device action, there is lateral n-p-n parasitic transistor action. This action is not destructiv ...
Digital Simulation of the Generalized Unified Power Flow Controller
... other one controls the reactive power flows in the lines by injecting series active voltage. The circuit model for the IPFC is developed and simulated by using MATLAB simulink and PSPICE [8]. Furthermore the investigation of the dynamic operation of control scheme for both STATCOM and SSSC based on ...
... other one controls the reactive power flows in the lines by injecting series active voltage. The circuit model for the IPFC is developed and simulated by using MATLAB simulink and PSPICE [8]. Furthermore the investigation of the dynamic operation of control scheme for both STATCOM and SSSC based on ...
ADC`S ANALOG TO DIGITAL CONVERTERS
... Oneof the simplest types of ADC is the counter type ADC, the input signal of the ADC is connected to the signal input of its internal comparator. The ADC then systematically increases the voltage on the reference input of the comparator until the reference becomes larger than the signal and the comp ...
... Oneof the simplest types of ADC is the counter type ADC, the input signal of the ADC is connected to the signal input of its internal comparator. The ADC then systematically increases the voltage on the reference input of the comparator until the reference becomes larger than the signal and the comp ...
Computer Applications
... Controls with parameters • Another example voltage = Tkinter.Scale(main_window, from_=5, to=15) voltage.pack() ...
... Controls with parameters • Another example voltage = Tkinter.Scale(main_window, from_=5, to=15) voltage.pack() ...
TL082
... Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability arising out of the application or use ...
... Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability arising out of the application or use ...
Aalborg Universitet Team-oriented Adaptive Droop Control for Autonomous AC Microgrids
... frequency measurements are essential to the effectiveness of the droop mechanisms. Unlike frequency which is a global variable, the voltage varies across the Microgrid due to the distribution line impedances. This voltage mismatch incapacitates the droop mechanisms and results in a poor voltage regu ...
... frequency measurements are essential to the effectiveness of the droop mechanisms. Unlike frequency which is a global variable, the voltage varies across the Microgrid due to the distribution line impedances. This voltage mismatch incapacitates the droop mechanisms and results in a poor voltage regu ...
Demonstration System EPC9112 Quick Start Guide
... 1. Remove the jumper in JP60 and insert it into J51 to place the EPC9507 amplifier in bypass mode. With power off connect the main input power supply (+) bus to the center pin of JP60 (pin 2) and the ground of the main power to the ground (-) connection of J50 -VIN. 2. With power off, connect the ...
... 1. Remove the jumper in JP60 and insert it into J51 to place the EPC9507 amplifier in bypass mode. With power off connect the main input power supply (+) bus to the center pin of JP60 (pin 2) and the ground of the main power to the ground (-) connection of J50 -VIN. 2. With power off, connect the ...
AN-6203 Applying SG6203 to Control a Synchronous Rectifier of a
... and a smaller heat sink can be used. The SG6203 is designed to control and drive the synchronous rectifier for the flyback converter. The synchronous signal of the primary switch is obtained by a single diode connected between the transformer secondary winding and the SG6203. Using the SG6203, no ad ...
... and a smaller heat sink can be used. The SG6203 is designed to control and drive the synchronous rectifier for the flyback converter. The synchronous signal of the primary switch is obtained by a single diode connected between the transformer secondary winding and the SG6203. Using the SG6203, no ad ...
BD555A1AFV
... 4) AUX Low Voltage Detection When AUX power supply voltage is low or any abnormal problem occurs such as AUX pin short, IC is turned non-active, since there is a possibility that IC does not operate properly. In non-active mode, switching operation stops. Gate driver output turns into low impedance ...
... 4) AUX Low Voltage Detection When AUX power supply voltage is low or any abnormal problem occurs such as AUX pin short, IC is turned non-active, since there is a possibility that IC does not operate properly. In non-active mode, switching operation stops. Gate driver output turns into low impedance ...
Advances in Electrical Measurements for Nanotechnology E
... be carefully controlled. n Nanoscopic particles will not hold off as much voltage from adjacent devices as a conventional electronic component or material (such as a transistor). This is because smaller devices can be and are placed closer together. Smaller devices also have less mass and may be af ...
... be carefully controlled. n Nanoscopic particles will not hold off as much voltage from adjacent devices as a conventional electronic component or material (such as a transistor). This is because smaller devices can be and are placed closer together. Smaller devices also have less mass and may be af ...
SMP18 Octal Sample-and-Hold with Multiplexed Input
... supplies over a voltage range of 7 to 15 volts. Based on the supply voltages chosen, VDD and VSS establish the output voltage range, which is: ...
... supplies over a voltage range of 7 to 15 volts. Based on the supply voltages chosen, VDD and VSS establish the output voltage range, which is: ...
Triode
A triode is an electronic amplifying vacuum tube (or valve in British English) consisting of three electrodes inside an evacuated glass envelope: a heated filament or cathode, a grid, and a plate (anode). Invented in 1906 by Lee De Forest by adding a grid to the Fleming valve, the triode was the first electronic amplification device and the ancestor of other types of vacuum tubes such as the tetrode and pentode. Its invention founded the electronics age, making possible amplified radio technology and long-distance telephony. Triodes were widely used in consumer electronics devices such as radios and televisions until the 1970s, when transistors replaced them. Today, their main remaining use is in high-power RF amplifiers in radio transmitters and industrial RF heating devices. The word is derived from the Greek τρίοδος, tríodos, from tri- (three) and hodós (road, way), originally meaning the place where three roads meet.