INSTANTANEOUS REACTIVE POWER IN AC CIRCUIT, METHOD FOR CALCULATING REACTIVE POWER EFFECTIVE VALUE AND METHOD FOR MEASURING INSTANTANEOUS REACTIVE POWER, REACTIVE POWER EFFECTIVE VALUE AND PHASE DIFFERENCEPROBLEM TO BE SOLVED: To provide a means for easily, simply, quickly and accurately calculating ...
The instantaneous value is “the value of an alternating quantity (it may ac voltage or ac current or ac power) at a particular instant of time in the cycle”. There are uncountable number of instantaneous values that exist in a cycle. ...
Method and system for dimming AC-powered light emitting diode (LED) lighting systems using conventional incandescent dimmers The control circuit includes a power stage and a current control loop coupled to the power stage. An AC detector is operable to detect an instantaneous value of the AC inpu...
The peak value of the current can be calculated. The peak value of current in a resistive circuit is simply the peak value of voltage divided by the resistance in the circuit: (4–2)Ipk=EpkR Using equation 4–2, if the 20-volt peak waveform is applied to a resistance of 10-ohms ...
aFor example, instantaneous elements in molded case circuit breakers have a higher trip threshold on dc systems than ac systems because they are essentially peak-detecting devices. Because the published timecurrent-characteristic (TCC) is typically calibrated for ac RMS currents, the manufacturers of ...
The instantaneous value of the 2 voltage... NN Zhelbakov - 《Measurement Techniques》 被引量: 6发表: 1980年 Method and a circuit arrangement for the electropermeation of living cells A method for the electropermeation of living cells between at least two electrodes over a predetermined interval...
p˜ is the ac component of the instantaneous power p; it does not have average value and is related to the harmonic currents caused by the ac component of the instantaneous real power. q¯ is the dc component of the imaginary instantaneous power q and is related to the reactive power ...
In order to allow use of integrated circuits the voltage must not rise excessively when the DC signal is inserted. Consequently this insertion is achieved by holding the instantaneous value of the signal constant, until the signal would naturally take that value again in the normal course of its...
However, pαq is involved in the transfer of energy within the α-phase circuit, in the same way as pβq in the β-phase circuit, increasing the value of the current flowing through each of the phases. Thus, the original formulation introduced by a side qαβ as a instantaneous ...
The control circuit has at least one Hall generator detecting the instantaneous motor rotor position. Each semiconductor control element has a preamplifier in the form of a differential amplifier with two outputs. These are mirror-like c... SOERENSEN,ROBERT 被引量: 4发表: 1979年 PEAK VALUE DETE...