ENGG1203_Tutorial_4_Q - ENGG 1203 Tutorial Op Amps 10 Oct...

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1 ENGG 1203 Tutorial Op Amps 10 Oct Learning Objectives Analyze circuits with ideal operational amplifiers News Mid term Revision tutorial (XX OCT 14:30-16:20, XXX) Ack.: MIT OCW 6.01
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Q1 2 This circuit is controlled by the charge output from a digital system. This digital signal represent a logic “1” using 2V, and represents a “0” using 0V. The output of the circuit is the signal V charge . To charge the battery, V charge = 20V. When it is not charging, V charge = 0V.
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3 Complete the following op-amp circuit by i) determining the values of the resistors R 1 , R 2 , R 3 , R 4 ; ii) determining the connection to point A and B. For point A and B, indicate if it should be connected to (i) charge if (ii) GND or (iii) 20V.
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