大工电气工程专业英语词汇(考研复试).doc

superposition theorem passive two-terminal network active two-terminal network Thevenins theorem Nortons theorem sinusoidal a-c circuitroot-mean-squire value (rms) instantaneous value reactance inductive reactance capacitive reactance Farad Henry impedance complex impedance phase initial phase phase difference phase lead phase lag phase inversion angular frequency Hertz phasor phasor diagram apparent power power-factor compensation series resonance parallel resonanceamplitude-frequency response characteristic phase-frequency response characteristic cutoff frequency quality factor pass-band bandwidth (BW) filter first-order filter second-order filter low-pass filter high-pass filter band-pass filter band-stop filter transfer function Bode diagram Fourier series three-phase circuit three-phase source symmetrical three-phase source symmetrical three-phase load phase voltage phase current line voltage line current three-phase three-wire system three-phase four-wire system three-phase power star connection(Y-connection) triangular connection(D- connection ,delta connection) neutral line transient state steady state transient responselaw of switch first-order circuit three-factor method time constant integrating circuit differentiating circuit magnetic field flux magnetic circuit flux density magnetomotive force reluctance dc motor ac motor asynchronous motor synchronous motor three-phase asynchronous motor single-phase asynchronous motor rotating magnetic field stator rotor slip starting current starting torque rated voltage rated current rated power mechanical characteristic button fuse switch travel switch relay contactor() normally open contact() normally closed contact time relay thermal overload relay intermediate relay programmable logic controller statement list ladder diagramintrinsic semiconductordoped semiconductorP P-type semiconductorN N-type semiconductor free electron hole carriersPN PN junction diffusion drift diode silicon diode germanium diode anode cathode light-emitting diode (LED) photodiode Zener diode transistorPNP PNP transistorNPN NPN transistor emitter collector base current amplification coefficient field-effect transistor (FET)P p-channelN n-channel junction FETJFET metal-oxide semiconductor (MOS)MOS depletion mode MOSFETD-MOSFETMOS enhancement mode MOSFETE-MOSFET source grid drain transconductance pinch-off voltage thermistor open shorted amplifier forward bias backward bias quiescent point (Q-point) equivalent circuit voltage gain overall voltage gain saturation cut-off amplifier region saturation region cut-off region distortion saturation distortion cut-off distortion zero drift positive feedback negative feedback series negative feedback parallel negative feedback common-emitter amplifier emitter-follower common-source amplifier common-drain amplifier multistage amplifier resistance-capacitance coupled amplifier direct- coupled amplifier input resistance output resistance load resistance dynamic resistance load current bypass capacitor coupled capacitor direct current path alternating current path direct current component alternating current componentrheostat sinusoidal voltage differential amplifier operational amplifier(op-amp) offset voltage offset current common-mode signal different-mode signal common-mode rejection ratio (CMRR) integratorcircuit differentiatorcircuit active filter low-pass filter high-pass filter band-pass filter band-stop filter Butterworth filter Chebyshev filter Bessel filter cut-off frequency upper cut-off frequency lower cut-off frequency center frequency Bandwidth open-loop gain closed-loop gain common-mode gain input impedance voltage-follower voltage source current source unity-gain bandwidth frequency responseresponse characteristic the Bode plotstability compensation comparator hysteresis comparator step input voltage instrumentation amplifier isolation amplifier log amplifier antilog amplifier feedback path reverse leakage currentphase phase shift phase-locked loop(PLL) PLL phase detector sum frequency difference frequency oscillator RC RC oscillatorLC LC oscillator sinusoidal oscillator triangular wave generatorsquare wave generator magnitudelevel saturated output level power amplifier cross-over distortion class A power amplifierclass B push-pull power amplifier OTL output transformerless power amplifier OCL output capacitorless power amplifier full-wave rectifier half-wave rectifier inductor filter capacitor filter series (voltage) regulator switching (voltage) regulator IC (voltage) regulator thyristor unijunction transistorUJT controlled rectifier silicon-controlled rectifier peak point valley point controlling angle turn-on angle gatetri-state gate AND gate OR gate NOT gate NAND gate NOR gate exclusive-OR gate inverter Boolean algebra truth table the Karnaugh map logic function logic expression combination logic circuit decoder coder comparator half-adder full-adder seven-segment display sequential logic circuitR-S R-S flip-flopD D flip-flopJ-K J-K flip-flop master-slave flip-flop set resetdirect-set terminaldirect-reset terminal register shift registerbidirectional shift register counter synchronous counterasynchronous counter adding counter subtracting counter timer0clear load clock pulse trigger pulse positive edge ne