Transcription of AN149 Modeling and Loop Compensation Design …
{{id}} {{{paragraph}}}
Example: dental hygienist
AN149 Modeling and Loop Compensation Design …
Application Note 149AN149-1an149faJanuary 2015 IdentIfyIng the ProblemA well-designed switching mode power supply (SMPS) must be quiet, both electrically and acoustically. An under-compensated system may result in unstable operations. Typical symptoms of an unstable power supply include: audible noise from the magnetic components or ceramic capacitors, jittering in the switching waveforms, oscillation of output voltage, overheating of power FETs and so on. However, there are many reasons that can cause undesir-able oscillation other than loop stability. Unfortunately, they all look the same on the oscilloscope to the inexperienced supply designer. Even for experienced engineers, some-times identifying the reason that causes the instability can be difficult. Figure 1 shows typical output and switching node waveforms of an unstable buck supply.
A N 149 AN149-1 an149fa January 2015 IdentIfyIng the Problem A well-designed switching mode power supply (SMPS) must be quiet, both electrically and acoustically.
Loading..
Tags:
Information
Domain:
Source:
Link to this page:
Please notify us if you found a problem with this document:
Related search queries
Understanding Buck Power Stages Mode Power, Power, Understanding Buck Power Stages, Power Supplies, Mode, Understanding Buck-Boost Power Stages, Mode Power Supplies, Power Line Filters for Switching, Power Line Filters for Switching Mode Power Supplies, XLS Switched Mode Power, XLS Switched Mode Power Supplies, Generic SPICE Power Supplies, Generic SPICE Power Supplies controller models, Mode Power, For switching power supplies, Switch, Power Switch, Power Switch Power, UNDERSTANDING AND CONTROLLING COMMON, NCP1336