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Battery Charger

Boost Converter

Power Supply

Inverter

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CD4047 50Hz /60Hz 100W Inverter Circuit

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The CD4047 CMOS-based two-MOSFET inverter circuit board is a square wave inverter that oscillating the input DC voltage at 50-60Hz frequency using an external transformer to produce a 220V AC output. This mini inverter can be handy for camping and outdoor emergency work where electricity is unavailable to charge your device batteries with a charger or power AC light bulbs. Here, we will discuss and explain the workings of this simple DC-AC power converter along with its circuit diagram .
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Universal Single 3.7V Battery Charger Circuit

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The Chinese universal single 3.7V battery charger is designed to safely and efficiently charge rechargeable Li-Ion (18650, 16340, 14500), AA, and AAA batteries with a voltage rating of 3.7V. It charges them to their nominal voltage of 4.2V while providing a steady current of 400mA. The charger incorporates a Bi-color LED that indicates the charging status, with the LED emitting a red light during the charging process and automatically switching to green when the battery is fully charged. Here, we will discuss and explain the workings of this 3V3 battery charger along with its circuit diagram .
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LM7805 5V 1A Regulator Power Supply Circuit

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The LM7805 circuit board is a voltage-regulated linear power supply that efficiently converts an input voltage within the safe range of 7V to 12V AC or DC to a fixed +5V DC output, capable of delivering a current of up to 1.2 Amps (with Heat Sink). It is suitable for providing additional power to various electronic components, charging modules, or powering LEDs (max 5 watts). Here, we will discuss and explain the workings of this positive DC power supply along with its circuit diagram .
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