Many electronic projects need 12V power, but sometimes only 5V supply is available, for example from USB, logic board or microcontroller; So, here, this Boost Converter Circuit From 5V to 12V using Transistors is useful which converts 5V DC to 12V DC. This circuit uses simple components such as transistors and an inductor, making it […]
Power Supply Circuits
Simple 12V Power Supply Circuit with Filter Capacitor
Many electronic circuits require a DC power supply, while the mains provides AC power, also this Simple 12 V Power Supply Circuit with Filter Capacitor converts AC into 12V DC and delivers up to 2 A of output current. This circuit uses only a few components, making it simple, low cost, and easy to build, […]
5V High Current Buck Converter Circuit using IC MC34063
Many electronic circuits require a stable 5V supply, but the input voltage is not always constant; it may be 12V or rise to 30V, so a buck converter reduces the input voltage to a stable 5 V output. This 5V High Current Buck Converter Circuit using IC MC34063 reduces voltage efficiently and it also saves […]
5V USB to 1.5V or 3V DC Converter Circuit
Today, many small devices need low voltage for example 1.5V or 3V. A USB port provides a 5V output, so this circuit uses a buck converter to reduce the voltage to 1.5 V or 3 V. The MC34063 IC controls the conversion, making the circuit low cost, easy to build, reliable, and efficient; the IC […]
12V to 5V Buck Converter Circuit using Transistors
In todays world power supply plays a very important role, because most electronics need stable 5V DC; but sometimes if the input voltage is high like for example 12V battery or adapter, then we must reduce voltage safely. Therefore, this buck converter reduces the voltage with high efficiency and this 12V to 5V Buck Converter […]
IC 7805 12V To 5V 2A Boost Converter Circuit
Sometimes 7805 regulator is not enough, as it gives only around 1 amp current; however, many projects need more current for example motors, relays, LED strips and logic boards together. Therefore, we need a simple solution, so we used an external power transistor TIP42 with 7805 IC, as this transistor boosts output current with this […]





