Your Browsing History
- Free 30-day Returns
$14.87
Ships from China.
Meet Your Seller
LM317 LM337 Dual Polarity DC Adjustable Power Supply Module, Positive & Negative Voltage Regulator Board, Linear Regulated Power Supply Board
- Adopts LM317 positive voltage regulator and LM337 negative voltage regulator to realize dual-polarity adjustable DC output.
- Continuous adjustable positive and negative output voltage, stable linear voltage regulation with low output ripple.
- Equipped with potentiometer for convenient voltage fine-tuning; onboard filter capacitors optimize power output quality.
- Wide application for audio amplifiers, experimental circuits, testing equipment and various DIY electronic projects.
- Compact PCB layout with reserved wiring terminals, easy to connect transformers and external loads.
+
+
Overview
Specs
Reviews
Any questions? Our AI beta will help you find out quickly.
Try me now
This LM317 LM337 dual polarity adjustable power supply board utilizes classic LM317 positive linear regulator chip and LM337 negative linear regulator chip. It can convert AC voltage from power transformer into continuously adjustable positive and negative DC voltage.
Built-in filter capacitors effectively restrain voltage ripple, delivering smooth and stable power output. The precision potentiometer allows users to flexibly adjust the output voltage according to different load requirements.
The module features simple wiring and clear terminal definition. It is widely used for audio amplifier power supply, electronic laboratory testing, circuit modification and all kinds of DIY projects requiring dual symmetrical power supply.
Notice: Please match the appropriate AC transformer input voltage within the modules working range. Proper heat sinks need to be installed when working under large current load to guarantee long-term stable operation.
Warranty & Returns
Warranty, Returns, And Additional Information
Warranty
- Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.
- CONTACT
Return Policies
- Return for refund within: 30 days
- Return for replacement within: 30 days
- This item is covered by USA-LXY Return Policy
Manufacturer Contact Info
- For a directory of all our manufacturers, please click below.
- Manufacturers Directory
LOADING...