DESIGNING AN UNINTERRUPTIBLE POWER SUPPLY BASED ON
... This paper presents an implementation of the DC/DC push–pull converter for an uninterruptible power supply (UPS). Some classical DC/DC converters are presented and analyzed for pointing out their advantages and drawbacks. Besides, an original system based on a push-pull converter associated with a d ...
... This paper presents an implementation of the DC/DC push–pull converter for an uninterruptible power supply (UPS). Some classical DC/DC converters are presented and analyzed for pointing out their advantages and drawbacks. Besides, an original system based on a push-pull converter associated with a d ...
Critical analysis of different current decomposition and
... • the constraints due to the compensation equipment. The energy required by the load should be delivered by the source; the compensator is assumed to generate no energy. The compensator may however store energy which is going back and forth between the compensator and the load. Another aspect is whe ...
... • the constraints due to the compensation equipment. The energy required by the load should be delivered by the source; the compensator is assumed to generate no energy. The compensator may however store energy which is going back and forth between the compensator and the load. Another aspect is whe ...
Crown FM4000 Manual
... supplies, a combiner with coupler, a transmitter controller, and all necessary cabling. The PA4000 transmitter package requires no tuning and typically provides 75% RF efficiency across the band. The PS2000 power supplies are power factor corrected and 90% efficient. Modern MOSFET technology ensures ...
... supplies, a combiner with coupler, a transmitter controller, and all necessary cabling. The PA4000 transmitter package requires no tuning and typically provides 75% RF efficiency across the band. The PS2000 power supplies are power factor corrected and 90% efficient. Modern MOSFET technology ensures ...
On Using Residual Voltage to Estimate Electrode Model Parameters Ashwati Krishnan
... electrode/electrolyte (tissue) interface in a chronic stimulation implant. There are several advantages to this approach: Firstly, the residual voltage is one of the most accessible measurements that is a function of Rct and Cdl . Secondly, the dynamic range for detection of residual voltage is smal ...
... electrode/electrolyte (tissue) interface in a chronic stimulation implant. There are several advantages to this approach: Firstly, the residual voltage is one of the most accessible measurements that is a function of Rct and Cdl . Secondly, the dynamic range for detection of residual voltage is smal ...
Transistor Basics - Lakeland Regional High School
... What will we do with them? For our lab experiment we will set up a simple circuit that controls how much voltage appears at the base of the transistor. We will do this by varying the resistance and thus the voltage This will control the current to the base which will control the voltage thru th ...
... What will we do with them? For our lab experiment we will set up a simple circuit that controls how much voltage appears at the base of the transistor. We will do this by varying the resistance and thus the voltage This will control the current to the base which will control the voltage thru th ...
(AFE) Drives - Mirus International
... over standard 6-Pulse VFDs equipped with diode bridge rectifiers such as, reduced line current harmonics, improved power factor and inherent regenerative capabilities. But they will hide the fact that current harmonics are much higher when measured above the 50th and that very serious problems can r ...
... over standard 6-Pulse VFDs equipped with diode bridge rectifiers such as, reduced line current harmonics, improved power factor and inherent regenerative capabilities. But they will hide the fact that current harmonics are much higher when measured above the 50th and that very serious problems can r ...
MAX8869 1A, Microcap, Low-Dropout, Linear Regulator General Description
... The MAX8869 low-dropout linear regulator operates from a +2.7V to +5.5V input and delivers a guaranteed 1A load current with a low 200mV dropout. The highaccuracy (±1%) output voltage is preset at +5V, +3.3V, +2.5V, +1.8V, or +1.0V or is adjustable from +0.8V to +5V with an external resistor-divider ...
... The MAX8869 low-dropout linear regulator operates from a +2.7V to +5.5V input and delivers a guaranteed 1A load current with a low 200mV dropout. The highaccuracy (±1%) output voltage is preset at +5V, +3.3V, +2.5V, +1.8V, or +1.0V or is adjustable from +0.8V to +5V with an external resistor-divider ...
Evaluates: MAX13487E/MAX13488E MAX13487E Evaluation Kit General Description Features
... The MAX13487E evaluation kit (EV kit) is a fully assembled and tested PCB that contains a half-duplex RS485/RS-422 AutoDirection-controlled transceiver with ESD protection. The EV kit circuit features a differential driver and receiver. The circuit’s receiver is a 1/4-unit load for the RS-485 bus an ...
... The MAX13487E evaluation kit (EV kit) is a fully assembled and tested PCB that contains a half-duplex RS485/RS-422 AutoDirection-controlled transceiver with ESD protection. The EV kit circuit features a differential driver and receiver. The circuit’s receiver is a 1/4-unit load for the RS-485 bus an ...
PDF
... within less than 10 ms, and interrupts the fault current within two cycles; 2) it can be used in fourand three-wired distribution systems, and singlephase configurations; 3) does not require phaselocked loops; 4) is not sensitive to noise, harmonics, and disturbances and provides effective fault cur ...
... within less than 10 ms, and interrupts the fault current within two cycles; 2) it can be used in fourand three-wired distribution systems, and singlephase configurations; 3) does not require phaselocked loops; 4) is not sensitive to noise, harmonics, and disturbances and provides effective fault cur ...
Fishbone diagrams for a forward converter
... Each transformer is characterized by a proper leakage inductance. Leakage inductance couples with the magnetization inductance and their main effect consists in increasing the voltage spike present on the drain of the power MOSFET during turn-off. The higher the value of the leakage inductance, the ...
... Each transformer is characterized by a proper leakage inductance. Leakage inductance couples with the magnetization inductance and their main effect consists in increasing the voltage spike present on the drain of the power MOSFET during turn-off. The higher the value of the leakage inductance, the ...
comparison of parallel resonant inverter and series resonant inverter
... applied in industry as a medium –frequency power supply for induction heating and melting installations. They are applied in all branches of the military and machine-building industries, as well as for jewellery, smithy heating, domestic heating and cooking devices and other purposes. The ordinary c ...
... applied in industry as a medium –frequency power supply for induction heating and melting installations. They are applied in all branches of the military and machine-building industries, as well as for jewellery, smithy heating, domestic heating and cooking devices and other purposes. The ordinary c ...
AAT3157 数据资料DataSheet下载
... time, output ripple, and transient performance. Optimum performance will be obtained when low Equivalent Series Resistance (ESR) ceramic capacitors are used. In general, low ESR may be defined as less than 100mW. A value of 1µF for all four capacitors is a good starting point when choosing capacitor ...
... time, output ripple, and transient performance. Optimum performance will be obtained when low Equivalent Series Resistance (ESR) ceramic capacitors are used. In general, low ESR may be defined as less than 100mW. A value of 1µF for all four capacitors is a good starting point when choosing capacitor ...
Technical Information ALUMINIUM ELECTROLYTIC CAPACITORS
... Surge voltage: The surge voltage is the maximum DC voltage that a capacitor can be subjected to, for a very short duration, not exceeding 30 seconds. This includes transients and peak ripple at highest line voltage. Capacitors are designed to withstand 6 such surge in an hour, at a minimum interval ...
... Surge voltage: The surge voltage is the maximum DC voltage that a capacitor can be subjected to, for a very short duration, not exceeding 30 seconds. This includes transients and peak ripple at highest line voltage. Capacitors are designed to withstand 6 such surge in an hour, at a minimum interval ...
300V PT IGBT Technology
... temperature, which is the reason PT IGBTs are not rated above 150 C. More aggressive lifetime control decreases Eoff but increases VCE(on) at a given current. For any given IGBT design, the Eoff versus VCE(on) operating point can be targeted along a curve of Eoff versus VCE(on). This curve is defin ...
... temperature, which is the reason PT IGBTs are not rated above 150 C. More aggressive lifetime control decreases Eoff but increases VCE(on) at a given current. For any given IGBT design, the Eoff versus VCE(on) operating point can be targeted along a curve of Eoff versus VCE(on). This curve is defin ...
Mercury-arc valve
A mercury-arc valve or mercury-vapor rectifier or (UK) mercury-arc rectifier is a type of electrical rectifier used for converting high-voltage or high-current alternating current (AC) into direct current (DC). It is a type of cold cathode gas-filled tube, but is unusual in that the cathode, instead of being solid, is made from a pool of liquid mercury and is therefore self-restoring. As a result, mercury-arc valves were much more rugged, long-lasting and could carry much higher currents than most other types of gas discharge tube.Invented in 1902 by Peter Cooper Hewitt, mercury-arc rectifiers were used to provide power for industrial motors, electric railways, streetcars, and electric locomotives, as well as for radio transmitters and for high-voltage direct current (HVDC) power transmission. They were the primary method of high power rectification before the advent of semiconductor rectifiers, such as diodes, thyristors and gate turn-off thyristors (GTOs) in the 1970s.