Figure 40. Input and output pulses for a lowpass,
longtimeconstant, series RL circuit
c. After 10 usec, the applied voltage remains constant for 30
usec. During this time, the inductor continues to oppose any change
in current flow. However, the current and the output voltage ER
continue to increase at a rate determined by the universal time
constant chart. At 40 usec, approximately 30 percent of the applied
voltage appears across the resistor.
d. After 40 usec, the applied voltage starts to decay and the
inductor opposes any change in current flow. As the applied voltage
decreases, EL decreases proportionally and the output
79
Previous Page
