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Posts tagged USB Powered Lithium on Battery Charger

USB charger battery

USB charger battery USB charger schematic diagram for li-on battery using LM3525, LM3622, DTA1432KA USB port is a great power source for charging a single cell li-on battery. … cell li-on battery charger. LM3525, LM3622, DTA1432KA is used as the controller.

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.

optical fiber power meter

optical fiber power meter optical fiber power meter Ground Wire Resistance Tester optical fiber power meter optical fiber power meter

Amplifier Mini

Power Amplifier stereo Mini circuit using TDA2009 2x10w Part Amplifier Mini : R1 1.3 kΩ        C1 2.2 µF 35V     IC1 TDA2009 R2 18 Ω            C2 2.2 µF 35V R3 1.3 kΩ        C3 100 µF 35V R4 18 Ω            C4 100 nF R5 1 Ω 3 W      C5 22 […]

Electronics Circuit Programmable LED light

Electronics Circuit Programmable LED light circuit diagram flashing LED that, after a preset number of flashes will illuminate steadily until P1 Reset Parts: R1______________10K 1/4W R2_______________1M 1/4W R3_______________1K 1/4W C1_______________4µ7 25V C2______________10nF 63V D1___________1N4148 75V 150mA D2______________LED IC1____________4060 B1______________3V to 15V Battery

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