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glossary:glossary_d [2019/12/13 06:45]
tgerbic Update to clarify definitions, make them relevent, remove dead links and unnecessary entries.
glossary:glossary_d [2019/12/13 06:51]
tgerbic [Dirty PSU] fix link
Line 65: Line 65:
 If the feed wires from the power supply unit (PSU) to the load are of sufficient length to have a bit of impedance and supply several loads, then the electrical noise (dirt) caused by one load can cross to other loads. This would usually be positive & negative sharp spikes superimposed on the DC. If the power lines that feed clean and dirty loads exhibit noise, then the effects can also cause  microprocessor ​ “brown-outs” or resets which may force a re-boot or even more subtle disturbances to your previously happy data. If the feed wires from the power supply unit (PSU) to the load are of sufficient length to have a bit of impedance and supply several loads, then the electrical noise (dirt) caused by one load can cross to other loads. This would usually be positive & negative sharp spikes superimposed on the DC. If the power lines that feed clean and dirty loads exhibit noise, then the effects can also cause  microprocessor ​ “brown-outs” or resets which may force a re-boot or even more subtle disturbances to your previously happy data.
  
-The separation of the digital low current circuitry with a separate “clean” PSU is one of the classic precautions to be observed ( as you and we all are frequently reminded on the MERG forum! ). While this may be the best method to provide clean power, it is a good design practice to provide bypass capacitors next to your digital ICs to help diminish the effect of power line noise. See [[:glossary:Decoupling Capacitor|Decoupling Capacitor]]+The separation of the digital low current circuitry with a separate “clean” PSU is one of the classic precautions to be observed ( as you and we all are frequently reminded on the MERG forum! ). While this may be the best method to provide clean power, it is a good design practice to provide bypass capacitors next to your digital ICs to help diminish the effect of power line noise. See [[:glossary_d#Decoupling Capacitor|Decoupling Capacitor]]
  
  
glossary/glossary_d.txt · Last modified: 2019/12/13 06:53 by tgerbic