autonomous circuit
{{Short description|Circuit that produces time-varying output without having a time-varying input}}
{{Notability|date=January 2022}}
An autonomous circuit in analogue electronics is a circuit that produces a time-varying output without having a time-varying input (i.e., it has only DC power as an input).{{sfn|Suárez|2009|p=41}}{{sfn|Mehrotra|Sangiovanni-Vincentelli|2013|p=7}}
In digital electronics, an autonomous circuit may have a clock signal input, but no other inputs, and operates autonomously (i.e. independently of other circuits), cycling through a set series of states.{{sfn|Crowe|Hayes-Gill|1998|p=180}}
A Moore machine is autonomous if it has no data inputs, the clock signal not counting as a data input.{{sfn|Cavanagh|2017|p=579}}{{sfn|Bannister|Whitehead|1987|p=189}}
If a Moore machine has data inputs, they may determine what the next state is, even though they do not affect the outputs of any given state, and this is a non-autonomous circuit.{{sfn|Cavanagh|2017|p=579}}{{sfn|Bannister|Whitehead|1987|p=189}}
References
{{reflist}}
Citations
{{refbegin}}
- {{cite book|title=Noise Analysis of Radio Frequency Circuits|author1-first=Amit|author1-last=Mehrotra|author2-first=Alberto L.|author2-last=Sangiovanni-Vincentelli|publisher=Springer Science & Business Media|year=2013|isbn=9781475760071}}
- {{cite book|chapter=Synchronous sequential circuits|title=Introduction to Digital Electronics|author1-first=J.|author1-last=Crowe|author2-first=Barrie|author2-last=Hayes-Gill|publisher=Elsevier|year=1998|isbn=9780080534992|page=180}}
- {{cite book|chapter=Sequential logic|title=Digital Design and Verilog HDL Fundamentals|author1-first=Joseph|author1-last=Cavanagh|publisher=CRC Press|year=2017|isbn=9781420074161}}
- {{cite book|chapter=Sequential logic analysis and design|title=Fundamentals of Modern Digital Systems|author1-first=B. R.|author1-last=Bannister|author2-first=Donald Gill|author2-last=Whitehead|publisher=Macmillan International Higher Education|year=1987|isbn=9781349188581}}
- {{cite book|author1-last=Suárez|author1-first=Almudena|title=Analysis and design of autonomous microwave circuits |year=2009|publisher=Wiley |location=Hoboken, N.J. |isbn=978-0-470-05074-3}}
{{refend}}
{{electronics-stub}}