LM317HV variable high current variable power supply

The LM317HV adjustable regulator is capable of supplying over 1.5A across an output voltage range of 1.2V to 57V. The design of this high current power supply is straightforward, as the LM317HV requires only a few external resistors to set the desired output voltage. Additionally, both line and load regulation are superior to those of standard fixed regulators. An optional output capacitor can be included to enhance transient response. The adjustment terminal can be bypassed to achieve very high ripple rejection ratios, which are challenging to obtain with conventional 3-terminal regulators. In the circuit diagram, this electronic project power supply utilizes three LM317 regulators connected in parallel, enabling a maximum output current of up to 4 amperes with a variable output voltage ranging from 4.5V to 25V.

The LM317HV is a versatile adjustable voltage regulator that can efficiently manage a wide range of output voltages and currents, making it suitable for various applications in electronic circuits. The device operates by using external resistors to set the output voltage, allowing for easy customization according to specific requirements. The typical configuration involves connecting two resistors in a voltage divider arrangement, which determines the output voltage level based on the feedback from the output terminal.

For improved performance, the addition of an output capacitor is recommended. This capacitor helps stabilize the output voltage during rapid changes in load conditions, thus enhancing the transient response of the regulator. The bypassing of the adjustment terminal can further enhance ripple rejection, making the LM317HV an excellent choice for applications requiring stable voltage under fluctuating load conditions.

In the schematic design, three LM317HV regulators are connected in parallel to achieve a higher output current capacity. This configuration allows for a combined output of up to 4 amperes, which is particularly beneficial for applications that demand higher current levels. The output voltage can be adjusted within the range of 4.5V to 25V, providing flexibility for various load requirements.

Overall, the LM317HV adjustable regulator, especially when configured with multiple units in parallel, serves as a robust solution for power supply applications requiring adjustable voltage and high current capabilities. The simplicity of its design and the effectiveness of its regulation make it a popular choice among engineers and hobbyists alike.LM317HV adjustable regulator is capable of supplying in excess of 1. 5A over a 1. 2V to 57V output range. The design of these high current power supply is very easy, because the LM317HV require just few external resistors to set the output voltage. Further, both line and load regulation are better than standard fixed regulators. An optional output capacitor can be added to improve transient response. The adjustment terminal can be bypassed to achieve very high ripple rejections ratios which are difficult to achieve with standard 3-terminal regulators. As you can see in the circuit diagram, these electronic project power supply require three LM317 regulators, connected in parallel to provide a maximum output current up to 4 amperes at a variable output voltage from 4.

5 volt up to 25 volt. 🔗 External reference