Using the diodes along with R B as shown in Figure 5-64, calculate the values of R

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Using the diodes along with RB as shown in Figure 5-64, calculate the values of RA and RB necessary to get a 1 kHz, 25 percent duty cycle waveform out of a 555. Assume C is a 0.1 μF capacitor.


Figure 5-64

Inset Rg D 01730 0.94 RC = 0.94 RAC L = 0.693 RBC TH=0.693 (R + Rg)C RA 1 KQ RA + RB <6.6 MO C 500 pF +5 V RA

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Digital Systems Principles And Application

ISBN: 9780134220130

12th Edition

Authors: Ronald Tocci, Neal Widmer, Gregory Moss

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