Raising the Efficiency of Power‐Factor Correction, from
... Uncorrected reactive power in the power lines of distribution networks and consumer power lines adds undesirable harmonics and reduces efficiency. It can also present a safety risk by allowing excessive currents to flow in ground conductors that are not designed to handle high levels of current. Giv ...
... Uncorrected reactive power in the power lines of distribution networks and consumer power lines adds undesirable harmonics and reduces efficiency. It can also present a safety risk by allowing excessive currents to flow in ground conductors that are not designed to handle high levels of current. Giv ...
Application Note
... measuring C, DF, Q, Y, G, B, Z, R, X, ESR, , DCR as well as the AC & DC voltage and current to the DUT. It has a wide frequency range (20Hz to 1MHz), 0.1% basic measurement accuracy, 4-terminal Kelvin connections, and remote interface capability (IEEE-488, RS232, Handler) all included with the stan ...
... measuring C, DF, Q, Y, G, B, Z, R, X, ESR, , DCR as well as the AC & DC voltage and current to the DUT. It has a wide frequency range (20Hz to 1MHz), 0.1% basic measurement accuracy, 4-terminal Kelvin connections, and remote interface capability (IEEE-488, RS232, Handler) all included with the stan ...
STEVAL-ISB006V1
... current against the die high power dissipation or high ambient temperature. An end of charge output pin indicates the charge termination when the fast charge current drops below 10% of the programmed current value. The STw4102 contains an accurate gas gauge based on a 13 bit AD converter. External r ...
... current against the die high power dissipation or high ambient temperature. An end of charge output pin indicates the charge termination when the fast charge current drops below 10% of the programmed current value. The STw4102 contains an accurate gas gauge based on a 13 bit AD converter. External r ...
ADN4663 数据手册DataSheet 下载
... current remains fairly constant with increased switching frequency, whereas that of voltage mode drivers increase exponentially in most cases. This is caused by the overlap as internal gates switch between high and low, which causes currents to flow from the device power supply to ground. ...
... current remains fairly constant with increased switching frequency, whereas that of voltage mode drivers increase exponentially in most cases. This is caused by the overlap as internal gates switch between high and low, which causes currents to flow from the device power supply to ground. ...
RA30H0608M - Mitsubishi Electric
... and were not specifically designed for use in other applications. In particular, while these products are highly reliable for their designed purpose, they are not manufactured under a quality assurance testing protocol that is sufficient to guarantee the level of reliability typically deemed necessa ...
... and were not specifically designed for use in other applications. In particular, while these products are highly reliable for their designed purpose, they are not manufactured under a quality assurance testing protocol that is sufficient to guarantee the level of reliability typically deemed necessa ...
University of LeicesterPLUMERef: PLM-PAY-LabElecsGain-014
... The ratio of voltages were 3:0.9, so the voltage gain of the preamp is -0.3, for a voltage pulse with rise time 0.02µs and fall time 0.05µs. For longer voltage pulse times (1µs rise, 10µs fall) gain fell only slightly to around 0.28, but the amplified pulse duration was almost unchanged. ...
... The ratio of voltages were 3:0.9, so the voltage gain of the preamp is -0.3, for a voltage pulse with rise time 0.02µs and fall time 0.05µs. For longer voltage pulse times (1µs rise, 10µs fall) gain fell only slightly to around 0.28, but the amplified pulse duration was almost unchanged. ...
5.1 Field Patterns
... An electric field pattern can be produced by using semolina grains sprinkled on oil between + & - high voltage metal conductors ...
... An electric field pattern can be produced by using semolina grains sprinkled on oil between + & - high voltage metal conductors ...
Comparative Study of Different Switching Surfaces for Sliding
... The inverter parameters used in simulation are Vdc=250 V, L=280 µH, C=1.7 mF, rL=0.3 mΩ, fsw=1500 Hz, and v ref 110 2sin(100 t). We use a PWM generator unit, which modulates control signal (output of sliding mode controller) to control pulses of IGBT gates. This means fixed switching frequency. B ...
... The inverter parameters used in simulation are Vdc=250 V, L=280 µH, C=1.7 mF, rL=0.3 mΩ, fsw=1500 Hz, and v ref 110 2sin(100 t). We use a PWM generator unit, which modulates control signal (output of sliding mode controller) to control pulses of IGBT gates. This means fixed switching frequency. B ...
TPS71501-Q1 数据资料 dataSheet 下载
... MSP430 microcontroller. Its ultralow supply current maximizes efficiency at light loads and its high input voltage range makes it suitable for supplies such as unconditioned solar panels. V I ...
... MSP430 microcontroller. Its ultralow supply current maximizes efficiency at light loads and its high input voltage range makes it suitable for supplies such as unconditioned solar panels. V I ...
PHYSICAL SCIENCE
... current will be in the coil of wire – The coil and iron core will act as an electromagnet and produce a magnetic field – This magnetic field will interact with the magnetic field of the surrounding permanent magnet. – The resulting forces will turn the core ...
... current will be in the coil of wire – The coil and iron core will act as an electromagnet and produce a magnetic field – This magnetic field will interact with the magnetic field of the surrounding permanent magnet. – The resulting forces will turn the core ...
Lecture 7 Overview
... 1) Determine the DC operating conditions (in particular, the collector current, IC) 2) Calculate small signal model parameters: gm, rπ, re 3) Eliminate DC sources: replace voltage sources with shorts and current sources with open circuits 4) Replace BJT with equivalent small-signal model. Choose mos ...
... 1) Determine the DC operating conditions (in particular, the collector current, IC) 2) Calculate small signal model parameters: gm, rπ, re 3) Eliminate DC sources: replace voltage sources with shorts and current sources with open circuits 4) Replace BJT with equivalent small-signal model. Choose mos ...
Design and construction of double
... pulse-forming line (PFL). A PFL has the capability of providing a flat top rectangular pulse with fast rise time. A fast closing switch is necessary for achieving fast rise time and spark gap switches have turned out to be the most appropriate. A repetitive pulsed power supply can also be obtained b ...
... pulse-forming line (PFL). A PFL has the capability of providing a flat top rectangular pulse with fast rise time. A fast closing switch is necessary for achieving fast rise time and spark gap switches have turned out to be the most appropriate. A repetitive pulsed power supply can also be obtained b ...
medium-voltage measuring current transformers user
... Periodically remove any dust or other deposits that may accumulate on the transformers’ surfaces. Avoid using solvents. 8. STAFF TRAINING All installation, commissioning and maintenance operations must be carried out by trained staff. Staff need to be trained in order for them to operate competently ...
... Periodically remove any dust or other deposits that may accumulate on the transformers’ surfaces. Avoid using solvents. 8. STAFF TRAINING All installation, commissioning and maintenance operations must be carried out by trained staff. Staff need to be trained in order for them to operate competently ...
5. Power supplies requirements
... The voltage rise times and fall times for the high voltage pulse must be fast enough to obtain maximum width state while attaining the 1.0 µs flat top. In any case, the pulse width at 75 % must not be more than 3.5 µs. The voltage must be tuneable between 50 and 100 % of the maximum voltage. ...
... The voltage rise times and fall times for the high voltage pulse must be fast enough to obtain maximum width state while attaining the 1.0 µs flat top. In any case, the pulse width at 75 % must not be more than 3.5 µs. The voltage must be tuneable between 50 and 100 % of the maximum voltage. ...
high voltage power capacitors three-phase units
... HIGH VOLTAGE POWER CAPACITORS THREE-PHASE UNITS High voltage power capacitors are designed and manufactured by using latest technology and high quality materials. They have all-film dielectric and are impregnated with dielectric liquid which is biodegradable in environment. Each capacitor element ha ...
... HIGH VOLTAGE POWER CAPACITORS THREE-PHASE UNITS High voltage power capacitors are designed and manufactured by using latest technology and high quality materials. They have all-film dielectric and are impregnated with dielectric liquid which is biodegradable in environment. Each capacitor element ha ...
EM720 POWER QUALITY AND REVENUE METER
... Precise Class 0.2S Active Energy and Power Demand Meter, Multiple Tariffs & Time-Of-Use (TOU, 16 Summary energy and demand registers for substation energy management, accumulation of energy pulses from external watt-meters, block and sliding demands), transformer and line losses, unique anti-tamperi ...
... Precise Class 0.2S Active Energy and Power Demand Meter, Multiple Tariffs & Time-Of-Use (TOU, 16 Summary energy and demand registers for substation energy management, accumulation of energy pulses from external watt-meters, block and sliding demands), transformer and line losses, unique anti-tamperi ...
Alternating current
Alternating current (AC), is an electric current in which the flow of electric charge periodically reverses direction, whereas in direct current (DC, also dc), the flow of electric charge is only in one direction. The abbreviations AC and DC are often used to mean simply alternating and direct, as when they modify current or voltage.AC is the form in which electric power is delivered to businesses and residences. The usual waveform of alternating current in most electric power circuits is a sine wave. In certain applications, different waveforms are used, such as triangular or square waves. Audio and radio signals carried on electrical wires are also examples of alternating current. These types of alternating current carry information encoded (or modulated) onto the AC signal, such as sound (audio) or images (video).