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Posts tagged LM7812

InPowered battery charger circuit

InPowered battery charger circuit diagram schematic 6V-12V using NE555, LM7812, 2SA671, 1N4002, BC549 auto battery charger circuit On a lithium-ion cell, 3.8V/cell indicates a state-of-charge of about 50%. It must be noted that utilizing voltage as a fuel gauge function is inaccurate because cells made by different manufacturers produce a slightly different voltage profile. This […]

Variable Power Supply

Variable Voltage Power Supply Kit Variable Power Supply using LM329DZ, OPA132P, LM337T, 1N5235B, 2N3904

home stereo amplifier using uPC1316C

home stereo amplifier using uPC1316C

variable dc power supply circuits

variable dc power supply circuits power relay suppliers using BC558, BC548 variable dc power supply circuits variable dc power supply circuits for power supply relay

BTL Audio Circuit using IC LA4598

BTL Audio Circuit using IC LA4598 THE LA4598 is a TWO-channel power ic that is intended for use in portable audio equipment.  Needing no heat sink during 9v operation facilitates set design with a small footprint.

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