
( Brand: Dc ), ( Manufacturer Part Number: 5-35 ), ( Part Type: Ac Switch Control Supply )
The LM317 AC Stepdown Power Supply is an adjustable voltage regulator that provides a stable output voltage within the range of 5V to 35V. This versatile power supply is designed to operate on AC input voltage ranging from 100V to 240V, making it ideal for use in various electrical applications.
The LM317 regulator utilizes a three-terminal pin layout, with the input (Vin), adjustment (Adjust), and output (Vout) terminals. The Adjust terminal allows for fine-tuning of the output voltage by adjusting the potentiometer connected to it. The regulator includes a built-in thermal protection mechanism, ensuring that the output voltage remains constant even under high load conditions or when operating in high-temperature environments.
The LM317 AC Stepdown Power Supply features a switchable input that can be configured for either AC or DC input. This switchable input allows for greater flexibility in application, as the regulator can be used with a wide range of power sources.
This power supply is housed in a compact, epoxy-coated enclosure, providing protection against external elements and ensuring long-term reliability. The regulator is also RoHS compliant, making it an environmentally-friendly choice for your electrical projects.
In summary, the LM317 AC Stepdown Power Supply is a high-quality, adjustable voltage regulator that offers a wide input and output voltage range, switchable input, and thermal protection. Its compact size, rugged construction, and RoHS compliance make it an excellent choice for a variety of electrical applications.
Pros of buying an LM317 AC stepdown power supply with variable control:1. Versatility: The LM317 is a popular and widely used linear voltage regulator, which makes it easy to find additional components and resources for customization.
2. Wide input voltage range: The LM317 can handle input voltages from 12V to 35V, making it suitable for a variety of applications.
3. Variable output voltage: The variable control feature allows you to adjust the output voltage within the 5V to 35V range, providing flexibility in designing your circuit.
4. Easy to use: The LM317 is relatively straightforward to use, requiring only a few components to build a basic power supply.
5. Cost-effective: The LM317 is generally less expensive than many other power supply options, making it a budget-friendly choice for many projects.
Cons of buying an LM317 AC stepdown power supply with variable control:1. Inefficient: Linear voltage regulators, like the LM317, are inherently less efficient than switching regulators, as they dissipate excess power as heat.
2. Limited output current: The LM317's maximum continuous output current is typically limited to around 1.5A, which may not be sufficient for high-power applications.
3. Bulky and heavy: Linear voltage regulators, such as the LM317, can be bulky and heavy due to their need for large heat sinks to dissipate the excess heat.
4. Noisy: Linear voltage regulators can produce noise, particularly at high frequencies, which may be a concern in sensitive applications.
Conclusion:The LM317 AC stepdown power supply with variable control is a versatile, cost-effective, and easy-to-use option for a wide range of applications. However, its less efficient operation, limited output current, bulkiness, and noise production should be considered when deciding if it is the best choice for your specific project.
Recommendation:If you need a power supply for a low-power application and can accommodate the LM317's noise and heat dissipation, it could be an excellent choice. However, for high-power or noise-sensitive applications, you may want to consider switching regulators, which are generally more efficient, have higher output currents, and produce less noise.
Lm 317 stepdown power supply module assembled Dc input volts Dc output volts ac volts output current 1 amp input and green terminals, with red rocker switch, blue indicator bundled a digital readout the display are not lit under 8 volts but starts displaying from 9 onwards, its bolted 5 standoffs on piece of acrylic.