Application Note AN-47 TOPSwitch-JX Family
... As average power increases, based on the measured transformer and device temperature, it may be necessary to select a larger transformer to allow increased copper area for the windings and/or to increase the amount of device heatsinking. The power table (Table 1) provides guidance for peak and conti ...
... As average power increases, based on the measured transformer and device temperature, it may be necessary to select a larger transformer to allow increased copper area for the windings and/or to increase the amount of device heatsinking. The power table (Table 1) provides guidance for peak and conti ...
AN00055 STARplug efficient low power supply
... During the time δ1.T (mode 1) switch S1 is switched on and a current starts to flow through the primary winding of the transformer. At the moment switch S1 is switched off the secondary switch S2 is closed and a current starts to flow towards the output. The peak value of this current is equal to th ...
... During the time δ1.T (mode 1) switch S1 is switched on and a current starts to flow through the primary winding of the transformer. At the moment switch S1 is switched off the secondary switch S2 is closed and a current starts to flow towards the output. The peak value of this current is equal to th ...
Trame Rapport
... It is advisable to check that the installation will not be subjected to overvoltage of any kind (atmospheric or switching overvoltage). - If there is a risk, the transformer should be protected by phase-earth surge arresters installed directly on the MV connection terminals (top or bottom). Phase-ea ...
... It is advisable to check that the installation will not be subjected to overvoltage of any kind (atmospheric or switching overvoltage). - If there is a risk, the transformer should be protected by phase-earth surge arresters installed directly on the MV connection terminals (top or bottom). Phase-ea ...
Power Circuits and Transformers
... Each symbol is a functional representation of a device used in Electrical Power Technology. The use of these symbols greatly simplifies the circuit diagrams by reducing the number of interconnections shown, and makes it easier to understand circuit operation. Appendix A lists the symbols used, the n ...
... Each symbol is a functional representation of a device used in Electrical Power Technology. The use of these symbols greatly simplifies the circuit diagrams by reducing the number of interconnections shown, and makes it easier to understand circuit operation. Appendix A lists the symbols used, the n ...
MP6902 Synchronous Rectification Controller Application Note
... C4, decouple capacitor for IC’s power supply, typical no smaller than 1μF EN pin of the IC is internal pulled up by the regulator from VDD with a ~15μA current source. Leave this pin open if unused. When use external signal to control EN, it is highly recommended the pull down current be larger than ...
... C4, decouple capacitor for IC’s power supply, typical no smaller than 1μF EN pin of the IC is internal pulled up by the regulator from VDD with a ~15μA current source. Leave this pin open if unused. When use external signal to control EN, it is highly recommended the pull down current be larger than ...
MXL Tech Memo
... polarity of the material required to diminish the magnetization to zero after it has been driven to saturation. The lag (or Hysteresis) in tracking the externally applied magnetic field caused by the coercivity and remanence of the ferromagnetic material results in energy lost as heat in the materia ...
... polarity of the material required to diminish the magnetization to zero after it has been driven to saturation. The lag (or Hysteresis) in tracking the externally applied magnetic field caused by the coercivity and remanence of the ferromagnetic material results in energy lost as heat in the materia ...
Basic Vocational Knowledge - Electrical Machines
... A maximum speed of 3000 rpm can be attained given a frequency of f = 50 Hz. ...
... A maximum speed of 3000 rpm can be attained given a frequency of f = 50 Hz. ...
Gas-insulated switchgear type series 8DN8
... The moving contact either closes the gap or connects the high-voltage conductor to the mating contact of the earthing switch. Integral mutual interlocking of the two functions is achieved as a result of this design, thus eliminating the need for providing corresponding electrical interlocking. An in ...
... The moving contact either closes the gap or connects the high-voltage conductor to the mating contact of the earthing switch. Integral mutual interlocking of the two functions is achieved as a result of this design, thus eliminating the need for providing corresponding electrical interlocking. An in ...
Tesla coil theory and applications
... The primary is wound at the bottom of the coil usually. I have found experimenting with the position of the primary may be worthwile. In some of my experiments feeding at the middle of the secundary gave better results. Constructing a bottom-fed tesla coil might be easiest to do like shown in gure ...
... The primary is wound at the bottom of the coil usually. I have found experimenting with the position of the primary may be worthwile. In some of my experiments feeding at the middle of the secundary gave better results. Constructing a bottom-fed tesla coil might be easiest to do like shown in gure ...
Gemini: A Non-Invasive, Energy
... designs, Monjolo [13] and a piezoelectromagnetic device [25], propose contact-less methods to power the sensors by using energy-harvesting techniques, but both provide limited accuracy because without access to the voltage channel they can only measure apparent power, at best, and certainly not true ...
... designs, Monjolo [13] and a piezoelectromagnetic device [25], propose contact-less methods to power the sensors by using energy-harvesting techniques, but both provide limited accuracy because without access to the voltage channel they can only measure apparent power, at best, and certainly not true ...
Chapter 16 Electromagnetism
... (a) Working principle (1) Lenz’s law states that induced current always flows in such a direction to opposite the change causing it. (2) When the loop ABCD is leaving the field, the magnetic flux entering the paper through the loop is decreasing. (3) By Lenz’s law, an induced current should flow in ...
... (a) Working principle (1) Lenz’s law states that induced current always flows in such a direction to opposite the change causing it. (2) When the loop ABCD is leaving the field, the magnetic flux entering the paper through the loop is decreasing. (3) By Lenz’s law, an induced current should flow in ...
Insulation coordination studies
... aspects like switching topology (e.g. normal operation or operating with contingencies), operating point (e.g. underexcited versus overexcited generator operation), component characteristics (e.g. remanent flux at transformer energization) and overvoltage excitation (e.g. different lightning strikes ...
... aspects like switching topology (e.g. normal operation or operating with contingencies), operating point (e.g. underexcited versus overexcited generator operation), component characteristics (e.g. remanent flux at transformer energization) and overvoltage excitation (e.g. different lightning strikes ...
Advanced Generator Protection and Monitoring Using
... Another quantity of interest is the dc component. Traditionally, we derive this using a low-pass filter. Depending on the chosen corner frequency, the low-pass filter trades off a time-domain response for a high-frequency rejection. Another way to extract dc is to take an average of the samples over ...
... Another quantity of interest is the dc component. Traditionally, we derive this using a low-pass filter. Depending on the chosen corner frequency, the low-pass filter trades off a time-domain response for a high-frequency rejection. Another way to extract dc is to take an average of the samples over ...
Guidelines for Paper Preparation
... In this way, the design of LSPMSM is somehow troublesome because of various line starting performance degrading effects. For the aforementioned reasons, the LSPMSM designer has to find many compromises in the design process between an adequate starting characteristic in the asynchronous operating re ...
... In this way, the design of LSPMSM is somehow troublesome because of various line starting performance degrading effects. For the aforementioned reasons, the LSPMSM designer has to find many compromises in the design process between an adequate starting characteristic in the asynchronous operating re ...
Document
... recent links in China and India. The breakeven distance is being effectively decreased with the reduced costs of new compact converter stations possible due to the recent advances in power electronics. Stabilization of power flows in integrated power system: In large interconnected systems, power fl ...
... recent links in China and India. The breakeven distance is being effectively decreased with the reduced costs of new compact converter stations possible due to the recent advances in power electronics. Stabilization of power flows in integrated power system: In large interconnected systems, power fl ...
Application Note for an LLC Resonant Converter Using
... Conventional PWM converters regulate the output voltage by adjusting the switching-cycle pulse width. The maximum duty cycle and main component parameter must be designed for the minimum input voltage condition so that the duty cycle gradually decreases as the input voltage increases. However, this ...
... Conventional PWM converters regulate the output voltage by adjusting the switching-cycle pulse width. The maximum duty cycle and main component parameter must be designed for the minimum input voltage condition so that the duty cycle gradually decreases as the input voltage increases. However, this ...
multimess - KBR Energy Management
... the measuring point for all three phases - via analog/digital transformer inputs - and calculates the relation of active power, reactive power and apparent power in the three-phase network. Furthermore, multimess 1F144-0-LED-NC-US0E measures the harmonic oscillation of the 3rd / 5th / 7th / 9th / 11 ...
... the measuring point for all three phases - via analog/digital transformer inputs - and calculates the relation of active power, reactive power and apparent power in the three-phase network. Furthermore, multimess 1F144-0-LED-NC-US0E measures the harmonic oscillation of the 3rd / 5th / 7th / 9th / 11 ...
PDF - 1.1MB - MIT OpenCourseWare
... convert (1) to its equivalent differential form by considering a stationary contour whose shape does not vary with time. Because the area for the surface integral does not change with time, the time derivative on the right-hand side in (1) may be brought inside the integral but becomes a partial der ...
... convert (1) to its equivalent differential form by considering a stationary contour whose shape does not vary with time. Because the area for the surface integral does not change with time, the time derivative on the right-hand side in (1) may be brought inside the integral but becomes a partial der ...
> REPLACE THIS LINE WITH YOUR PAPER IDENTIFICATION NUMBER (DOUBLE-CLICK... 1 I. I
... load variation. However, it has poor output voltage regulation capability [16]. The partially-compensated SS method improves the characteristic of the load regulation. But the parameter design becomes tricky for control stability and soft-switching realization. For better performance, series-paralle ...
... load variation. However, it has poor output voltage regulation capability [16]. The partially-compensated SS method improves the characteristic of the load regulation. But the parameter design becomes tricky for control stability and soft-switching realization. For better performance, series-paralle ...
Transformer
A transformer is an electrical device that transfers electrical energy between two or more circuits through electromagnetic induction. Commonly, transformers are used to increase or decrease the voltages of alternating current in electric power applications.A varying current in the transformer's primary winding creates a varying magnetic flux in the transformer core and a varying magnetic field impinging on the transformer's secondary winding. This varying magnetic field at the secondary winding induces a varying electromotive force (EMF) or voltage in the secondary winding. Making use of Faraday's Law in conjunction with high magnetic permeability core properties, transformers can thus be designed to efficiently change AC voltages from one voltage level to another within power networks.Since the invention of the first constant potential transformer in 1885, transformers have become essential for the transmission, distribution, and utilization of alternating current electrical energy. A wide range of transformer designs are encountered in electronic and electric power applications. Transformers range in size from RF transformers less than a cubic centimeter in volume to units interconnecting the power grid weighing hundreds of tons.