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WHAT'S YOUR ENGINEERING QUOTIENT?

Problem 2—Draw a hybrid circuit using flip-flops and opamps that can produce the above waveform.

A simple 3-stage ring counter can generate the two square waves "A" and "B" with the required phase relationship. These are added together by a simple analog summing amplifier, as shown below. The clock frequency must be 6× the desired output frequency.

Contributor: Dave Tweed

12-01 — NEXT Q&A