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PROFIBUS PA is built from the PROFIBUS DP network, while both the transmission medium, transmission rate, data frame format and so on were different. Take the built typical single master DP/PA hybrid network control system as the research object, carried out a detailed analysis of representative parameter Dcycle of PROFIBUS system. On this basis, proposed the method of improving control network real-time...
A green-mode power converter is implemented in 0.13 ??m CMOS and achieves step-up/down variable output with adaptively optimized efficiency. Single-bound hysteresis control enables high-frequency switching regulation with suppressed error and noise. For Vm = 1.5 V and fs = 10 MHz, the output is regulated from 0.9 to 2.2 V with an efficiency of >80% over a 400 mW power range.
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