ReactiVar - Schneider Electric
... The problem: Harmonics are a natural by-product of non-linear loads such as variable frequency drives, motor soft starters, welders, uninterruptable power supplies, robotics, PLCs and other electronic devices. Harmonics introduce higher-than-60 Hz current and voltage components into the electrical d ...
... The problem: Harmonics are a natural by-product of non-linear loads such as variable frequency drives, motor soft starters, welders, uninterruptable power supplies, robotics, PLCs and other electronic devices. Harmonics introduce higher-than-60 Hz current and voltage components into the electrical d ...
Auto-Transformer
... have a sine wave of flux in the core, but on account of the characteristic of iron, a sine wave of flux requires a third harmonic component in the exciting current. If the primary neutral isolated, the triple frequency current cannot flow. Hence, the flux in the core cannot be a sine wave and so the ...
... have a sine wave of flux in the core, but on account of the characteristic of iron, a sine wave of flux requires a third harmonic component in the exciting current. If the primary neutral isolated, the triple frequency current cannot flow. Hence, the flux in the core cannot be a sine wave and so the ...
PDF
... consumption of individual internal components of these, multipliers perform one of the most frequently encountered arithmetic operations in digital signal processors (DSPs). For embedded applications, it has become essential to design more power-aware multipliers. Given their fairly complex structur ...
... consumption of individual internal components of these, multipliers perform one of the most frequently encountered arithmetic operations in digital signal processors (DSPs). For embedded applications, it has become essential to design more power-aware multipliers. Given their fairly complex structur ...
Rectifier output smoothing
... RC-Filter Rectifier: This circuit was designed and simulated using Multisim 8 software. Sizing of the capacitor represents a tradeoff. For a given load, a larger capacitor will reduce ripple but will cost more and will create higher peak currents in the transformer secondary and in the supply feedin ...
... RC-Filter Rectifier: This circuit was designed and simulated using Multisim 8 software. Sizing of the capacitor represents a tradeoff. For a given load, a larger capacitor will reduce ripple but will cost more and will create higher peak currents in the transformer secondary and in the supply feedin ...
TPS61130 数据资料 dataSheet 下载
... supply solution for products powered by either a one-cell Li-Ion or Li-Polymer, or two- to four-cell Alkaline, NiCd, or NiMH batteries. The devices can generate two regulated output voltages. It provides a simple and efficient buck-boost solution for generating 3.3 V out of an input voltage that can ...
... supply solution for products powered by either a one-cell Li-Ion or Li-Polymer, or two- to four-cell Alkaline, NiCd, or NiMH batteries. The devices can generate two regulated output voltages. It provides a simple and efficient buck-boost solution for generating 3.3 V out of an input voltage that can ...
PI6C48535-11B
... crystal or LVCMOS/LVTTL to LVPECL translation. Typical clock translation and distribution applications are data-communications and telecommunications. ...
... crystal or LVCMOS/LVTTL to LVPECL translation. Typical clock translation and distribution applications are data-communications and telecommunications. ...
Journal of Power Electronics Vol
... substantially reduce or eliminate output voltage deviations [11], [12]. However, additional circuits, which increase the cost and complexity of the control, are needed. [13] and [14] propose constrained control which can limit the inductor peak current. However, this is only for buck converters and ...
... substantially reduce or eliminate output voltage deviations [11], [12]. However, additional circuits, which increase the cost and complexity of the control, are needed. [13] and [14] propose constrained control which can limit the inductor peak current. However, this is only for buck converters and ...
Science and Engineering Saturday Seminars What Electrical
... needed. Capacitance is measured in units of farads (F). One farad is a very large amount of capacitance; typical circuit components have values of microfarads (F), 10-6 F, and picofarads (pF), 10-12 F. Integrated Circuit: The 555 IC was “invented” in the early 1970’s, but remains a low cost (~35 ce ...
... needed. Capacitance is measured in units of farads (F). One farad is a very large amount of capacitance; typical circuit components have values of microfarads (F), 10-6 F, and picofarads (pF), 10-12 F. Integrated Circuit: The 555 IC was “invented” in the early 1970’s, but remains a low cost (~35 ce ...
Datasheet
... The 1080E-T 8-Port Ethernet Switch is designed to meet the demands of industrial environments, yet is easy to use and simple to install with DIN rail or wall mount options. The 1080E-T supports Ethernet switching to IEEE 802.3 10Base-T and 802.3u 100Base-TX specifications with full-duplex performanc ...
... The 1080E-T 8-Port Ethernet Switch is designed to meet the demands of industrial environments, yet is easy to use and simple to install with DIN rail or wall mount options. The 1080E-T supports Ethernet switching to IEEE 802.3 10Base-T and 802.3u 100Base-TX specifications with full-duplex performanc ...
Checker® SensorView® 890
... This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment ge ...
... This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment ge ...
Design Note
... IAC node, one resistor from Vcc to the current amplifier input to accommodate the worst case +4mV offset voltage, and a Schottky diode to clamp the overcurrent protection (PKLMT) input from going far below ground during power-up of the PFC pre4/94 ...
... IAC node, one resistor from Vcc to the current amplifier input to accommodate the worst case +4mV offset voltage, and a Schottky diode to clamp the overcurrent protection (PKLMT) input from going far below ground during power-up of the PFC pre4/94 ...
Simple Direct Drive Kit Instructions
... Mark’s explanation of the circuitry is as follows First there are a few extra parts around U1, namely Q1, R2, R3, R4, R5. These parts are there to allow using a thermistor to keep the temperature of the MOSFETs under control. If R2 is replaced with a like resistance NTC thermistor and thermally conn ...
... Mark’s explanation of the circuitry is as follows First there are a few extra parts around U1, namely Q1, R2, R3, R4, R5. These parts are there to allow using a thermistor to keep the temperature of the MOSFETs under control. If R2 is replaced with a like resistance NTC thermistor and thermally conn ...
Document
... b) Design a diode clamper circuit to clamp the positive peaks of the input signal at zero level. The frequency of the input signal is 500 Hz. 7a) Explain how diode can be used as a Switch. b) In order to operate transistor as a Switch in which operating region it should be biased? Explain why? ...
... b) Design a diode clamper circuit to clamp the positive peaks of the input signal at zero level. The frequency of the input signal is 500 Hz. 7a) Explain how diode can be used as a Switch. b) In order to operate transistor as a Switch in which operating region it should be biased? Explain why? ...
Metal-Clad Switchgear or Metal-Enclosed
... control and auxiliary devices. Access to the interior of the enclosure is provided by doors or removable covers, or both. This definition appears in all three of the ANSI/IEEE standards covering the types of metal-enclosed power switchgear: C37.20.1, Metal-Enclosed Low Voltage Power Circuit Breaker ...
... control and auxiliary devices. Access to the interior of the enclosure is provided by doors or removable covers, or both. This definition appears in all three of the ANSI/IEEE standards covering the types of metal-enclosed power switchgear: C37.20.1, Metal-Enclosed Low Voltage Power Circuit Breaker ...
Switched-mode power supply
A switched-mode power supply (switching-mode power supply, switch-mode power supply, SMPS, or switcher) is an electronic power supply that incorporates a switching regulator to convert electrical power efficiently. Like other power supplies, an SMPS transfers power from a source, like mains power, to a load, such as a personal computer, while converting voltage and current characteristics. Unlike a linear power supply, the pass transistor of a switching-mode supply continually switches between low-dissipation, full-on and full-off states, and spends very little time in the high dissipation transitions, which minimizes wasted energy. Ideally, a switched-mode power supply dissipates no power. Voltage regulation is achieved by varying the ratio of on-to-off time. In contrast, a linear power supply regulates the output voltage by continually dissipating power in the pass transistor. This higher power conversion efficiency is an important advantage of a switched-mode power supply. Switched-mode power supplies may also be substantially smaller and lighter than a linear supply due to the smaller transformer size and weight.Switching regulators are used as replacements for linear regulators when higher efficiency, smaller size or lighter weight are required. They are, however, more complicated; their switching currents can cause electrical noise problems if not carefully suppressed, and simple designs may have a poor power factor.