24v dc power supply using lm7824

A 24V DC power supply circuit utilizing the LM7824 integrated circuit (IC). The LM7824 is a fixed output voltage regulator IC that provides 24V at a maximum current of 1.5A and is available in a TO-220 package. It is part of the LM78xx series, which includes various fixed output voltage regulators such as the LM7815 for 15V output and the LM7818 for 18V output. Additional circuits using these series ICs can be found on the power supply circuits page. These ICs incorporate several built-in features, including overheat and short circuit protection. Consequently, the circuit requires minimal external components, utilizing only a few capacitors. The transformer specified in the circuit is a 220V to 24V 2A transformer, although a 110V to 24V 2A transformer can also be employed. D1 represents a 2A diode bridge, while the 1N4001 diode is utilized to prevent feedback to the IC. Due to the heat generated during operation, the IC necessitates an appropriate heatsink.

The 24V DC power supply circuit using the LM7824 is designed for efficient voltage regulation and reliability. The LM7824 regulator is capable of converting higher input voltages to a stable 24V output, making it suitable for various applications that require a consistent power supply. The device is characterized by its ease of use, as it requires only a few external components for its operation.

The circuit begins with a transformer that steps down the AC voltage from either 220V or 110V to 24V AC. The transformer must be rated for at least 2A to ensure adequate current supply. The output of the transformer feeds into a diode bridge (D1), which rectifies the AC voltage into pulsating DC. The choice of a 2A diode bridge is critical to handle the current without failure.

After rectification, the pulsating DC voltage is smoothed by using capacitors, which filter out the fluctuations to provide a more stable DC voltage. The LM7824 then regulates this smoothed voltage to provide a constant 24V output. The inclusion of the 1N4001 diode is essential for preventing any reverse voltage feedback that could potentially damage the regulator IC.

Given that the LM7824 can generate considerable heat during operation, it is crucial to attach an appropriate heatsink to the IC. This heatsink will dissipate excess heat, maintaining the IC within safe operating temperatures and ensuring long-term reliability. The overall design emphasizes simplicity and efficiency, making it an excellent choice for applications that require a robust 24V power supply.A 24V DC power supply circuit using LM7824 IC. LM7824 is a 24V 1. 5A fixed output voltage regulator IC, available in TO 220 package. It is an IC of LM78xx series, this series contains many fixed output voltage ICs like LM7815 is designed for fixed 15V output and LM7818 is for fixed 18V output. You can find many other circuits of this series ICs on the power supply circuits page. These ICs have many built in features like overheat protection short circuit protection etc. All the important circuitry has been built inside the IC therefore very mumimum external components are required. As the circuit mentioned below using only few capacitors. The transformer shown in the diagram is a 220V to 24V 2A transformer you can also use a 110V to 24V 2A transformer here.

D1 is a 2A diode bridge and 1N4001 diode is used to block feedback to the IC. The IC become hot during the operation due to which it requires a suitable heatsink 🔗 External reference