Today, many electronic circuits need stable 5V supply. However, input voltage is not always fixed, sometimes it is 12V and sometimes it can go up to 30V. Therefore, a buck converter is needed. This 5V High Current Buck Converter Circuit using IC MC34063 reduces voltage efficiently and it also saves power. Here, we used the […]
Power Supply Circuits
5V USB to 1.5V or 3V DC Converter Circuit
Today, many small devices need low voltage for example 1.5V or 3V. This 5V USB to 1.5V or 3V DC Converter Circuit USB gives 5V output, so a buck converter is needed. Therefore, this circuit is useful as it converts 5V USB into 1.5V or 3V. It uses MC34063 IC and this IC is cheap, […]
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, a buck converter is useful, as it reduces voltage with high efficiency. This 12V to 5V […]
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. This transistor boosts output current with this the […]
IC LM309 Based 5 Volt Power Supply Circuit
Today many electronic circuits need stable 5 volt DC supply. However, AC mains supply is very high, so voltage reduction is also required. Also voltage regulation is important and therefore a voltage regulator circuit is used. In this article, a simple IC LM309 Based 5 Volt Power Supply Circuit is explained. Moreover, the circuit is […]
5V 0.5A Regulated Power Supply Circuit
Power supply is the heart of any electronic circuit, without stable voltage the circuit will fail. Sometimes 7805 IC is not enough and also sometimes current requirement is higher. Therefore, discrete regulator is useful. This 5V 0.5A Regulated Power Supply Circuit gives 5V output at 0.5A current. It uses TIP3055 transistor and IC TL431 reference. […]