CircuitCKT - Electronic Circuits, Schematics, Working Principles

The SG3525 IC-based two-MOSFET inverter circuit board is a square wave inverter that oscillates the DC input voltage at an 18-24 kHz high frequency, using an onboard ATX transformer to generate a 220V AC output voltage. This compact inverter can be handy for camping and outdoor emergencies where electricity is unavailable to power AC light bulbs. Here, we will discuss and explain the workings of this Chinese DC-AC power converter along with its circuit diagram .

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 .

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 .

The TP4056 battery charger is designed to safely and efficiently charge a single rechargeable 3.7V lithium battery. The circuit board can operate with a DC 5V 1A input and can be powered by a smartphone charger's USB mini cable. It charges Li-Ion/Li-Pol batteries to their nominal voltage of 4.2V with a steady current (programmable) of 1000mA while continuously monitoring the voltage level for Battery Overcharge protection . Two different color LEDs are included on the TP4056 circuit board to indicate the charging status. The red LED light during the charging process and automatically switches to blue LED light when the lithium battery is fully charged. The circuit is available with or without Battery Short-circuit protection feature. Here, we will discuss and explain the workings of this 3V7 lithium battery charger along with its circuit diagram .

The AMS1117-3.3V module is a voltage regulator circuit board with overheat protection functions. It can convert an input voltage range of 4.8V to 10.3V DC at 1A of current to a fixed +3.3V DC output. This can serve as an additional power supply for various electronic components, circuit boards, or power the LEDs (up to a maximum of 3 watts). Here, we will discuss and explain the workings of this compact DC-DC regulator power supply along with its circuit diagram .

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 .