Transient response time

This is a voltage-mode, forward eonverter. To produee the best transient response time, a 2-pole, 2-zero method of eompensation is going to be used. 

The gain eross-over frequency of the closed loop should not be any higher than 20 percent of the switching frequency (or 20 kHz). I have found that gain crossover frequencies of 10 kHz to 15 kHz are quite satisfactory for the majority of applications. This yields a transient response time around 200 uS. 

I shall use a gain eross-over frequency of 15 kHz, which is quite satisfactory for the majority of applications. This yields a transient response time around 200qS. 

The elosed-loop gain eross-over frequency should be as high as practically possible. This quickens the transient response time of the supply. 

Transient response (time from 10% to 90% of rated power) (seconds) 3 2 1... 

Analysis of currently available data on intrinsic threshold approaches " indicates they are limited to less than about 5x10 pels due to relatively high voltage or power requirements, slow transient response times, or long page refresh times. Uniformity of appearance will also be a problem due to high sensitivity of the intrinsic LC threshold to variations in LC layer thickness or in the substrate LC interface. 

Clearly, reforming CH4 is not a trivial task, and many materials, catalysts, and parameters must be properly selected and controlled. During the power transient process, a sudden change in the need for H2 leads to corresponding changes in the flows of CH4, H2O, and O2, which makes control more difficult. The transient response time of a reformer is normally on the order of 10 s or slightly longer. 

Response time of the biosensor is classified into steady state response time and transient response time. The time required to reach 95% of the steady state response of the biosensor is known as steady state response time. It is easily determined after the addition of each analyte into measurement cell. Transient response time corresponds to the first derivative of the output signal to reach its maximum value following the analyte addition. Both are dependent upon the analyte and the activity of the molecular recognition system, i.e., the higher activity, the shorter the response time. 

The overall picture (following the initial period of particle acceleration, which usually amounts to a very small fraction of the total transient response time) is thus of two zones, both in fluid particle equilibrium an upper zone at void fraction ei, in which the particles are all falling at a constant velocity, and a lower zone of stationary particles at void fraction 2- There are thus two travelling interfaces the falling surface of the bed, and the rising discontinuity, or shock wave, that separates the two zones (Figure 5.1). When these meet the whole bed will have attained the new equilibrium condition U2, 2-... 

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