Hi folks,
I know that an LM317, 317L in this case, will work well as a current limit but in order to do so it needs to drop circa 1.2V across the sense resistor.
See circuit A
What I would like to know is can I do something like circuit B to reduce the overall voltage drop whilst limiting is not active.
I have a small monolithic DC/DC converter with a maximum output of circa 160mA and want to protect it with but with the minimum voltage drop when the current is below Imax.
Any and all suggestions welcome
Al
I know that an LM317, 317L in this case, will work well as a current limit but in order to do so it needs to drop circa 1.2V across the sense resistor.
See circuit A
What I would like to know is can I do something like circuit B to reduce the overall voltage drop whilst limiting is not active.
I have a small monolithic DC/DC converter with a maximum output of circa 160mA and want to protect it with but with the minimum voltage drop when the current is below Imax.
Any and all suggestions welcome
Al
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