lecture 21_supplement

lecture 21_supplement - = 5 k Ω or − 10 V ≤ V tions...

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EE 230 Problem trigger ha Solution Putting th Solving Problem Schmitt 1: Design o aving an upp he values of these two e m 2: Illustra triggers (or of an Inverti per trip poin f this exampl equations gi ate the disad r comparato Lectur Solv ng Compara t of 1V and le into the kn ives 3 R 1 = R dvantage of ors with hys re 21: Supp ed Problem ator with Hy lower trip po nown relatio 2 and V RE f using com steresis). plement s ysteresis: Use oint of 0V if onships (lectu F = (2/3)V. parators an e the inverti f VOH = 2V ure 21, last s nd the reaso Fall 2011 ng Schmitt and VOL = slide) gives on for using 1 -2V. g
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Problem the input Problem 3 V and a 3: Design is greater th 4: Design an output of n a Bistable c han 2 V and n a Bistable c f +10 V when circuit (i.e. S an output of circuit that h n the input is Schmitt Trigg f -10 V when has an output s less than -3 ger) that has n the input is t of -10 V wh 3 V. s an output o s less than -2 hen the inpu of +10 V whe 2 V. ut is greater t en than
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Problem of Vo ve The abov results. Y 5: Given ersus Vi fo ve two equat You will see R1
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Unformatted text preview: = 5 k Ω , or − 10 V ≤ V tions are from the final ans , RF = 30 k Ω Vi ≤ +10 V m last slide o swer will ma , VB = 3 V of lecture 21 atch. V, and VSAT 1. Use the no T = 12 V. S on-inverting ketch the g configuratio graph on Problem op amps b) Try to Lecture 2 Problem V IN <2V. Solution inverting high wh The thre referenc this case 6: Obtain a are ideal and do it yourse 21). Here VR 7: Design a n: We know g configura en input is eshold is set e voltage, w e. an expression d power sup elf. Use the e REF = 2V. N a comparator it is a non-ation as outp high. t by the which is 2V n for and plo plies are at L equation for Notice that h r that has an-put is V in ot V OUT vs V L + and L-vo non-invertin here = R1 / n output that IN for the fo olts. ng Schmitt T / R2. Find V is high when llowing circ Trigger (give V HYH and V H n V IN >2V an cuits. Assum en on last sli HYL . nd low when e the ide of n...
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lecture 21_supplement - = 5 k Ω or − 10 V ≤ V tions...

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