current limiter circuit Rcl between BJT base and its emitter increase the current flow of regulator by add transisotr foldback to protect circuit from over current isc = current in short circuit imax=max current can flowvoltage regulator + current limitermore flow current not recommended to use left top schematic because some transistors have hfe and voltage drop more than another one from same mode that mean it can flow more current so its heated faster and pass more current(thermal runaway) so you prefer to add resistor at emitter to keep all transistors passes current evenly and you can add limiter to protect itparallel mosfets for share current only work with switch mode (cutoff or saturation)at active linear region you should to add resistor after source … and you can add transistor and resistor for current limiter ….lm317 schematic it is too similar to figure 3 … and over temp and over current protection is actually like current limiter and foldback blocksconstant current load
18 thoughts on “Limiter from profisional circuit design curse”
18 thoughts on “Limiter from profisional circuit design curse”
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