Old Op Amp test PPM dcVC check

5V operation of LM358

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pulse position modulated direct current switching voltage converter QC

! likely source® http://www.24vpower.com/dianlutu/89.html

converting it to 20V to 5V variant

. . . adjusting switch turnoff time ... down to about ~ 100ns

no further checks (e.g. output short circuit , load steps , starting at mild overload ... )

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[Eop]