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LM317 LM337 Adjustable Dual Rail DC Power Supply Module AC to DC Positive Negative Voltage Regulator PCB Board 5V 12V 24V Output with Overheat Protection for Laboratory DIY Projects
- Uses LM317 for positive regulation and LM337 for negative regulation to provide adjustable dual-polarity DC output.
- Converts AC input to adjustable positive and negative DC power through an integrated dual-output regulator design.
- Adjust the onboard potentiometer to set dual-rail output voltages including ±5V, ±12V, ±24V, and other dual DC levels.
- Complete PCB includes the required peripheral matching circuits, requiring AC input connection and potentiometer adjustment for operation.
- Built-in thermal protection helps prevent regulator chip damage caused by overheating during use.
- Designed for audio equipment power supply, analog circuit experiments, laboratory debugging, and DIY electronic equipment modification.
- Confirm the input AC voltage range and load current before power-on to help avoid module burnout.
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Product Description:
Adjustable dual-output power supply PCB module using an LM317 positive voltage regulator and LM337 negative voltage regulator chip solution. It converts AC input into stable, adjustable positive and negative DC power for analog circuit testing, audio equipment power supply, laboratory debugging, and DIY power conversion projects.
Core Selling Points:
Provides adjustable dual-rail DC output through an integrated PCB with complete peripheral matching circuits. Connect the AC input and adjust the potentiometer to obtain the required positive and negative output voltage. Built-in overheat protection helps prevent chip damage caused by overheating. Compact board design supports electronic experiments, small equipment power supply modification, and circuit debugging.
Technical Specifications:
Chip solution: LM317 positive voltage regulator and LM337 negative voltage regulator. Function: AC/DC conversion with adjustable positive and negative dual-rail power output. Typical adjustable output: ±5V, ±12V, ±24V, and other dual DC voltages. Carrier board: Complete finished PCB circuit board. Protection: Built-in overheat protection.
Before Purchase:
Confirm the input AC voltage range, input-to-output voltage difference, and load current limit before powering on. Use the potentiometer to adjust the required dual-polarity DC output voltage.
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.
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Return Policies
- Return for refund within: 30 days
- Return for replacement within: non-replaceable
- This item is covered by GeekSpace Return Policy
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