power factor
... In resistive circuits the average power is equal to VI, where V and I are r.m.s. values In a capacitor the current leads the voltage by 90 and the average power is zero In an inductor the current lags the voltage by 90 and the average power is zero In circuits with both resistive and react ...
... In resistive circuits the average power is equal to VI, where V and I are r.m.s. values In a capacitor the current leads the voltage by 90 and the average power is zero In an inductor the current lags the voltage by 90 and the average power is zero In circuits with both resistive and react ...
Ohm`s Law and Resistance Name: : :_____
... A resistor is "Ohmic" if as voltage across the resistor is increased, a graph of voltage versus current shows a straight line (indicating a constant resistance). The slope of the line is the value of the resistance. A resistor is 'non-Ohmic' if the graph of voltage versus current is not a straight l ...
... A resistor is "Ohmic" if as voltage across the resistor is increased, a graph of voltage versus current shows a straight line (indicating a constant resistance). The slope of the line is the value of the resistance. A resistor is 'non-Ohmic' if the graph of voltage versus current is not a straight l ...
UC2852 数据资料 dataSheet 下载
... The UC1852 provides a low-cost solution to active power-factor correction (PFC) for systems that would otherwise draw high peak current pulses from AC power lines. This circuit implements zero-current switched boost conversion, producing sinusoidal input currents with a minimum of external component ...
... The UC1852 provides a low-cost solution to active power-factor correction (PFC) for systems that would otherwise draw high peak current pulses from AC power lines. This circuit implements zero-current switched boost conversion, producing sinusoidal input currents with a minimum of external component ...
Utilization of Ballistic Deflection Phenomena for Room Temperature
... As suggested by K. Hieke et al, negative voltages dominate the modulation of the channel [12]. The region with a gate voltage between -0.1 Volts and 0.2 Volt, for the graph in Fig. 3, is the transition region between the quadratic channel opening and the linear pinch-off of the channel. The positive ...
... As suggested by K. Hieke et al, negative voltages dominate the modulation of the channel [12]. The region with a gate voltage between -0.1 Volts and 0.2 Volt, for the graph in Fig. 3, is the transition region between the quadratic channel opening and the linear pinch-off of the channel. The positive ...
The effects on radial distribution networks caused by replacing
... I1,max is the maximum demand current magnitude at the rated frequency. IEEE standard 519 also gives TDD limits based on the short-circuit current ratio available at the point of common coupling (PCC) to maximum fundamental load current. The feeder’s load curve, maximum demand current and short-circu ...
... I1,max is the maximum demand current magnitude at the rated frequency. IEEE standard 519 also gives TDD limits based on the short-circuit current ratio available at the point of common coupling (PCC) to maximum fundamental load current. The feeder’s load curve, maximum demand current and short-circu ...
555 Timer
... •To switch on or off an output after a certain time delay i.e. Games timer, Porch light, Childs mobile, Exercise timer. ...
... •To switch on or off an output after a certain time delay i.e. Games timer, Porch light, Childs mobile, Exercise timer. ...
TOPIC 10 UPDATED Nov.2, 2005
... Voltage-Amplifier Model Ri: input resistance Ro: output resistance Avo: Open loop voltage gain ( vo / vi ) ...
... Voltage-Amplifier Model Ri: input resistance Ro: output resistance Avo: Open loop voltage gain ( vo / vi ) ...
VWR Power Source 300V Electrophoresis Power Supply
... 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 ...
Speedtronic Control Calibrator Handbook
... panel to simulate the input from sensors external to the panel. The calibrator patch board and the two connectors ___whichplug between the SPEEDTRONIC* control “page” and calibrator are the means for reading out and inputing signals to the ...
... panel to simulate the input from sensors external to the panel. The calibrator patch board and the two connectors ___whichplug between the SPEEDTRONIC* control “page” and calibrator are the means for reading out and inputing signals to the ...
GMD is the name of a series of bipolar chopper drives - Q-TECH
... model of stepping motor, in a great variety of applications. ...
... model of stepping motor, in a great variety of applications. ...
TA5601 Owner`s Manual Doc.indd
... 10. StreetWires Connectors – All MTX amplifiers include StreetWires connectors for efficient current and maximum voltage transfer. 11. Speaker Connection – Two sets of speaker terminals are provided for dual woofer applications. When connecting a single woofer, use only one set of speaker terminals. 1 ...
... 10. StreetWires Connectors – All MTX amplifiers include StreetWires connectors for efficient current and maximum voltage transfer. 11. Speaker Connection – Two sets of speaker terminals are provided for dual woofer applications. When connecting a single woofer, use only one set of speaker terminals. 1 ...
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. ...
TPS60140 数据资料 dataSheet 下载
... that is necessary to sustain a regulated output voltage. The benefit is that the ripple performance is nearly as good as with a linear-regulation topology. At light loads a conventional pulse-skip regulation mode is used, but the charge pump output resistance is held at a high level. The pulse-skip ...
... that is necessary to sustain a regulated output voltage. The benefit is that the ripple performance is nearly as good as with a linear-regulation topology. At light loads a conventional pulse-skip regulation mode is used, but the charge pump output resistance is held at a high level. The pulse-skip ...
PHYSICS 176 UNIVERSITY PHYSICS LAB II Experiment 4
... On one end of the function generator cable there is a silver BNC connector which plugs into the output of the function generator box. The other end of this cable may again be terminated with a BNC connector or have two leads: one with a red collar and one with a black collar. The lead with the red c ...
... On one end of the function generator cable there is a silver BNC connector which plugs into the output of the function generator box. The other end of this cable may again be terminated with a BNC connector or have two leads: one with a red collar and one with a black collar. The lead with the red c ...
Parameter Symbol Maximum Units THERMAL RESISTANCE
... damages. “Typical” parameters which may be provided in APL data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical exp ...
... damages. “Typical” parameters which may be provided in APL data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical exp ...
3-phase AC circuits
... o for a single phase supply, a nominal voltage of 220 volts (root mean square value) plus or minus 6% between a phase conductor and neutral conductor; o for a 3 phase supply, using a 3 phase 4 wire system, a nominal voltage of 380 volts plus or minus 6% (root mean square value) between phase conduct ...
... o for a single phase supply, a nominal voltage of 220 volts (root mean square value) plus or minus 6% between a phase conductor and neutral conductor; o for a 3 phase supply, using a 3 phase 4 wire system, a nominal voltage of 380 volts plus or minus 6% (root mean square value) between phase conduct ...
2201_Homework_05
... a) Find a model for the device that would be valid when current is in the range 1[mA] < iX < 5[mA]. This model must have numerical values for the current and resistance, and the polarities with respect to vX and iX should be shown in a diagram. b) A voltage source is applied across the device so tha ...
... a) Find a model for the device that would be valid when current is in the range 1[mA] < iX < 5[mA]. This model must have numerical values for the current and resistance, and the polarities with respect to vX and iX should be shown in a diagram. b) A voltage source is applied across the device so tha ...
RA NGER : VIKING
... This receptacle also permits the "Ranger" to be used as a filament and plate "power source and also as a modulator for operating auxiliary equipment such as a VHF transmitter. Available at the output receptacle are 6.3 V AC at 5.5 Amp., 500 V DC at up to 210 MA and 300 V DC at up to SO MA along with ...
... This receptacle also permits the "Ranger" to be used as a filament and plate "power source and also as a modulator for operating auxiliary equipment such as a VHF transmitter. Available at the output receptacle are 6.3 V AC at 5.5 Amp., 500 V DC at up to 210 MA and 300 V DC at up to SO MA along with ...
Power electronics
Power electronics is the application of solid-state electronics to the control and conversion of electric power. It also refers to a subject of research in electronic and electrical engineering which deals with the design, control, computation and integration of nonlinear, time-varying energy-processing electronic systems with fast dynamics.The first high power electronic devices were mercury-arc valves. In modern systems the conversion is performed with semiconductor switching devices such as diodes, thyristors and transistors, pioneered by R. D. Middlebrook and others beginning in the 1950s. In contrast to electronic systems concerned with transmission and processing of signals and data, in power electronics substantial amounts of electrical energy are processed. An AC/DC converter (rectifier) is the most typical power electronics device found in many consumer electronic devices, e.g. television sets, personal computers, battery chargers, etc. The power range is typically from tens of watts to several hundred watts. In industry a common application is the variable speed drive (VSD) that is used to control an induction motor. The power range of VSDs start from a few hundred watts and end at tens of megawatts.The power conversion systems can be classified according to the type of the input and output power AC to DC (rectifier) DC to AC (inverter) DC to DC (DC-to-DC converter) AC to AC (AC-to-AC converter)