Abstract:power supply scaling in an ATM (Asynchronous Transfer Mode) interface circuit is analyzed and simulated. Feedback is used to adjust the power supply based on how full the input buffer is. Either a DC-DC converter or multiple supply voltages can be used. Selftimed processing circuitry allows the feedback to control the, speed fairly precisely, even incorporating variations in process and operating conditions into the loop. The trade-offs and requirements for buffer size, converter response time, and control alg… Show more
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