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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 […]

Power Supply Control circuit

Power Supply Control circuit Power Supply Control using LM7812, LM7912

LM7812, LM7912 circuit

LM7812, LM7912 circuit for Power Supply Control LM7812 pinout

DC Power Supply Circuit Diagram

DC Power Supply Circuit Diagram DC Power Supply Circuit Diagram Power Supply 33V DC to 1,25V using MAX8860EUA18 DC Power Supply Circuit Diagram Power Supply 33V DC to 1,25V using MAX8860EUA18 Variable DC Power Supply: 1.25-25V 1A LM317 Voltage Regulator Circuit DC Power Supply Schematic: Build Home Easy Variable PSU Circuit Diagram DC Power Supply […]

NPN – PNP Transistor Tester Circuit using 3906

NPN-PNP Transistor Tester Circuit using 3906

HI-FI tone control circuit with C1815 – C945

HI-FI tone control circuit with C1815, C945

Intercom switch circuit

Intercom switch circuit Intercom switch circuit Two line intercom plus a telephone changeover switch Click here for the circuit diagram. The circuit presented here can be used for connecting, The circuit presented here can be used for connecting two telephones in parallel

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