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 […]
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High Fidelity AM Tuner
High Fidelity AM Tuner Approaches to Wideband and High Fidelity AM MW Broadcast Band using mpf102 High Fidelity AM Tuner circuit diagram
Audio Circuit
Audio Circuit using IC1 NE5534 and TR 2SK135, 2SJ50 Part Audio Circuit : R1 33 kΩ C1 1nF 63V D1 1N967B zener 18V 0.5W R2 6.8 kΩ C2 47 µF 40V D2 1N967B zener 18V 0.5W R3 22 kΩ C3 100 nF 63V D3 1N4148 R4 100 kΩ C4 100 nF 63V […]
ptc speaker protection
ptc speaker protection
IR remote control light, using relay
IR remote control light, using relay IR remote control light, using relay
