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... by means of a Proportional-Resonant controller [1]. The other simulation parameters are shown in Table I. As it can be seen, no further optimizations for each topology have been carried out in order to compare the topologies under the same LCL filter parameters. In the case of the HB-NPC topology th ...
... by means of a Proportional-Resonant controller [1]. The other simulation parameters are shown in Table I. As it can be seen, no further optimizations for each topology have been carried out in order to compare the topologies under the same LCL filter parameters. In the case of the HB-NPC topology th ...
New ways of measuring pull-in voltage and transient
... Several methods to detect the pull-in event are existing. The probably simplest way is to look at the membrane while increasing the stimulus voltage step by step. When the pull-in voltage is reached, the closing of the air-gap between the two electrodes will lead to interference fringes which are vi ...
... Several methods to detect the pull-in event are existing. The probably simplest way is to look at the membrane while increasing the stimulus voltage step by step. When the pull-in voltage is reached, the closing of the air-gap between the two electrodes will lead to interference fringes which are vi ...
MAX17062 TFT-LCD Step-Up DC-DC Converter General Description Features
... The minimum inductance value, peak current rating, and series resistance are factors to consider when selecting the inductor. These factors influence the converter’s efficiency, maximum output load capability, transientresponse time, and output-voltage ripple. Physical size and cost are also importa ...
... The minimum inductance value, peak current rating, and series resistance are factors to consider when selecting the inductor. These factors influence the converter’s efficiency, maximum output load capability, transientresponse time, and output-voltage ripple. Physical size and cost are also importa ...
Physics of Semiconductor Devices
... Semiconductor material by doping it with Antomony and also how to make a P-type Semiconductor material by doping that with Boron. This is all well and good, but these semiconductor N and P –type materials do very little on their own as they are electrically neutral, but when we join (or fuse) togeth ...
... Semiconductor material by doping it with Antomony and also how to make a P-type Semiconductor material by doping that with Boron. This is all well and good, but these semiconductor N and P –type materials do very little on their own as they are electrically neutral, but when we join (or fuse) togeth ...
Comparison of energy efficiency determination methods for the
... reliability in comparison with direct current or synchronous motors that have many considerable drawbacks. Mostly such machines present small or average power motors with traction mode, induction generators are used quite rarely. As induction motors represent one of the most important power equipmen ...
... reliability in comparison with direct current or synchronous motors that have many considerable drawbacks. Mostly such machines present small or average power motors with traction mode, induction generators are used quite rarely. As induction motors represent one of the most important power equipmen ...
RF3229 QUAD-BAND GMSK TXM, 2 RX AND 3 UMTS SWITCH PORTS Features
... be driven directly from the transceiver DAC to provide very predictable power control, enabling handset manufacturers to achieve simple and efficient phone calibration in production. Additional Features Current Limiter During normal use, a mobile phone antenna will be subjected to a variety of condi ...
... be driven directly from the transceiver DAC to provide very predictable power control, enabling handset manufacturers to achieve simple and efficient phone calibration in production. Additional Features Current Limiter During normal use, a mobile phone antenna will be subjected to a variety of condi ...
UCC2581 数据资料 dataSheet 下载
... Note that for stability, the UCC3581 VREF bypass capacitor needs to be at least 1µF. The VDD supply also needs some capacitance to hold it up between pulses at light load and high line, where the frequency may drop to less than 1kHz due to pulse skipping. Otherwise it may drop low enough for the sta ...
... Note that for stability, the UCC3581 VREF bypass capacitor needs to be at least 1µF. The VDD supply also needs some capacitance to hold it up between pulses at light load and high line, where the frequency may drop to less than 1kHz due to pulse skipping. Otherwise it may drop low enough for the sta ...
DC Current Measurement Using Magnetic Flux in an Electronic Null
... to use a DC current transformer based on a Hall element as in reference [1]. In Figure 1, the DC current ”‘Transformer”’ contains a ferrite core which is magnetized by the current In to be measured. The magneto motive force or mmf, from a current Im flows in an auxiliary winding with NM turns. It op ...
... to use a DC current transformer based on a Hall element as in reference [1]. In Figure 1, the DC current ”‘Transformer”’ contains a ferrite core which is magnetized by the current In to be measured. The magneto motive force or mmf, from a current Im flows in an auxiliary winding with NM turns. It op ...
High Common-Mode Voltage, Programmable Gain Difference Amplifier AD628
... to single-sided signals. The AD628 converts +5 V, +10 V, ±5 V, ±10 V, and 4 to 20 mA input signals to a single-ended output within the input range of single-supply ADCs. The AD628 has an input common mode and differential mode operating range of ±120 V. The high common mode, input impedance makes th ...
... to single-sided signals. The AD628 converts +5 V, +10 V, ±5 V, ±10 V, and 4 to 20 mA input signals to a single-ended output within the input range of single-supply ADCs. The AD628 has an input common mode and differential mode operating range of ±120 V. The high common mode, input impedance makes th ...
CPS1200EILCD/CPS2200EILCD User`s Manual
... calculates the maximum amount of VA that the equipment can use, not what is typically used by the equipment at any one time. Users should expect usage requirements to be approximately 60% of below value. ...
... calculates the maximum amount of VA that the equipment can use, not what is typically used by the equipment at any one time. Users should expect usage requirements to be approximately 60% of below value. ...
60-W, 24-V, High-Efficiency Industrial Power
... The value of the bulk capacitor used determines the minimum input voltage for the flyback converter. This in turn determines the primary-to-secondary turns ratio of the transformer. Input capacitance value, CBULK , is based on the maximum load power, converter efficiency, minimum operational input v ...
... The value of the bulk capacitor used determines the minimum input voltage for the flyback converter. This in turn determines the primary-to-secondary turns ratio of the transformer. Input capacitance value, CBULK , is based on the maximum load power, converter efficiency, minimum operational input v ...
High Step-Up Converter With Coupled
... to operate with soft switching in a pulse-width-modulation (PWM) manner without high voltage and current stresses. Unfortunately, the voltage gain is limited below four in order to achieve the function of soft switching. In [8] and [9], coupled inductors were employed to provide a high step-up ratio ...
... to operate with soft switching in a pulse-width-modulation (PWM) manner without high voltage and current stresses. Unfortunately, the voltage gain is limited below four in order to achieve the function of soft switching. In [8] and [9], coupled inductors were employed to provide a high step-up ratio ...
EET307: TRIAC+ lamp dimmer application msw
... During the conduction time a certain quantity of charges is injected into the structure. During turn-off of one zone an excess charge remains, particularly in the region of the gate, and this can in certain cases result in the firing of the other conduction zone at the moment when the supply voltage ...
... During the conduction time a certain quantity of charges is injected into the structure. During turn-off of one zone an excess charge remains, particularly in the region of the gate, and this can in certain cases result in the firing of the other conduction zone at the moment when the supply voltage ...
introduction
... • For devices burden expressed in VA at specified current or voltage, the burden impedance Zb is: • Zb = VA/IxI or VxV/VA ...
... • For devices burden expressed in VA at specified current or voltage, the burden impedance Zb is: • Zb = VA/IxI or VxV/VA ...
Gas-insulated switchgear up to 420 kV, 63 kA, 5000 A
... required to operate the circuit breaker. It has a compact, corrosion-free aluminum housing. Both the opening and the closing spring are visibly arranged within the drive unit. The complete drive unit is strictly separated from the SF6 compartment. Roller bearings and the maintenancefree spring mech ...
... required to operate the circuit breaker. It has a compact, corrosion-free aluminum housing. Both the opening and the closing spring are visibly arranged within the drive unit. The complete drive unit is strictly separated from the SF6 compartment. Roller bearings and the maintenancefree spring mech ...
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS 1
... conductive power transfer (usually plug-in), WPT is more convenient, weather proof, and electric shock protected. Some companies, such as WiTricity, Evatran, Qualcomm, etc., have developed products which can transfer power at 3.3 kW with an acceptable efficiency. However, there is still more researc ...
... conductive power transfer (usually plug-in), WPT is more convenient, weather proof, and electric shock protected. Some companies, such as WiTricity, Evatran, Qualcomm, etc., have developed products which can transfer power at 3.3 kW with an acceptable efficiency. However, there is still more researc ...
Novel Permanent Magnet Motor Drives for Electric Vehicles
... phase flux path, and hence an increase in both power density and efficiency. Moreover, with the use of fractional number of slots per pole per phase, the cogging torque can be eliminated. On the other hand, by employing the claw-type rotor structure and fixing an additional field winding as the inne ...
... phase flux path, and hence an increase in both power density and efficiency. Moreover, with the use of fractional number of slots per pole per phase, the cogging torque can be eliminated. On the other hand, by employing the claw-type rotor structure and fixing an additional field winding as the inne ...
Three-phase electric power
Three-phase electric power is a common method of alternating-current electric power generation, transmission, and distribution. It is a type of polyphase system and is the most common method used by electrical grids worldwide to transfer power. It is also used to power large motors and other heavy loads. A three-phase system is usually more economical than an equivalent single-phase or two-phase system at the same line to ground voltage because it uses less conductor material to transmit electrical power.The three-phase system was independently invented by Galileo Ferraris, Mikhail Dolivo-Dobrovolsky, Jonas Wenström and Nikola Tesla in the late 1880s.