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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 and power control circuit diagrams – power amp audio

Power supply and power control circuit diagrams This reference manual contains useful background information on switching power supplies for …. Driving power amp audio in Power Supply Applications. 2Way Power Supply

20W Audio PCB using MDA 2020

20W Audio Amplifier Circuit using MDA2020

Current Sensing Slave Power Switch using Relay

Current Sensing Slave Power Switc using BC549, BC556, relay

Cheap walkie talkies circuit

Cheap walkie talkies circuit Cheap walkie talkies circuit The possession of a mobile walkye talkye style of VHF radio that enables him to communicate while he is away

Circuit 2N2222

Circuit 2N2222 for Headphone amplifier This circuit can source about 500mA continuously, You built a 2 transistor project and it worked great, but now it has stopped working. You decide the transistor may be faulty.

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