The Q1, Q2 transistor pair provide thermal compensated monitoring of the voltage drop on resistor r; when this drop rises to ~20 mV, the fuse goes "on", limiting output current to ~150 mA

AuthorsPeter Demchenko
Main DocumentArticle «An accurate resettable fuse»
DescriptionFigure 1
File Format / SizePDF / 12 Kb
Document LanguageEnglish

The Q1, Q2 transistor pair provide thermal compensated monitoring of the voltage drop on resistor r; when this drop rises to ~20 mV, the fuse goes on, limiting output current to ~150 mA