Category: power supply

Introduction to Power Supply for Electronics Systems A power supply plays a crucial role in the functioning of electronic systems. Most digital integrated circuits (ICs) require a ±5V supply, while linear ICs such as op-amps and special-purpose ICs need ±15V supplies. In this article, we will discuss a power supply that provides ±5V and ±15V outputs. The Power Supply Circuit: The block diagram of a typical power supply is illustrated in Figure 1. Figure 2 presents the schematic diagram of the power supply, designed to deliver an output voltage of…

Power supply circuits are an essential component of any electronic device, providing the necessary voltage and current required for the smooth operation of the device. A well-designed power supply circuit ensures that the device receives a stable and regulated power supply, preventing damage due to voltage spikes or current surges. In this article, we will discuss a ripple-free short circuit-protected variable power supply circuit design which is a highly efficient and reliable circuit that can provide precise and stable voltage and current outputs. The circuit is designed to maintain a…

A good high-power laboratory power supply must-have device for electronic enthusiasm. As being electronic enthusiastic we all love to design our own bench power supply. So here in this article, you will learn to design your own variable current and voltage 10A laboratory power supply circuit. Features of 10A Laboratory Power Supply Circuit: Users can select voltage and current as per the requirement Constant current mode Short circuit indication and protection Voltmeter and ammeter Fuse for extra protection Applications It can be used as a general variable power supply. It…

Most of us hear about the variable power supply, it is a power supply unit that provides almost all standard power supplies. How’s that if we combine a variable power supply and a digital control technology. Here, we have designed and verified a DC power supply circuit with the facility of digital control. The unit digital power supply circuit provides a variable, fluctuation-free and regulated ten different DC power supplies. These are 1.5V, 3V, 4.5V, 5V, 6V, 7.5V, 9V, 10.5V, 12V positive power supply, and 12V negative power supply. One…

Power supply has been considered a role in an electronic circuit. Power supply furnishes the voltage and current requirements for electronics circuit operation but the problem is most of the electric power is generated as AC power. But for the operation of most of the electronics circuits, we need a DC power supply. Sometimes the output of the power supply consisting unwanted ripple components i.e. component of supply frequency and its harmonics. We should take care of this unwanted noise or harmonic components because this might cause problems (especially in…