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Description
2A Voltage Buck Regulator Power Supply Module with Digital Display LM317 1.25-28V Adjustable Voltage Regulator
Product Description
LM317 adjustable DC power supply board, using lotus-shaped heat sink for better heat dissipation, replace double adjustment potentiometer, AC/DC can be input.
LM317 adjustable DC regulated power supply board uses original LM317 zener tube
1. Use lotus-shaped heat sink for better heat dissipation 2. Use a double adjustment potentiometer 3. AC/DC can be input, voltage input range: DC: DC 3-30V AC: AC 3-20V 4. It can be connected to the load below 2A, the DC output is 1.25V-28V continuously adjustable, and the voltage range is wide. 5. Using special capacitors for green gold high-frequency power supply, the performance is more stable 6. The circuit board village uses blue high-end double-sided boards 7. We have newly added a digital voltage display function, the output voltage is clear at a glance, very suitable for experimental use 8. This board adopts high-quality materials: imported LM317 Philips capacitors, Hongyang rectifier bridges, and Hongyang diodes
Notice
1. This power supply is a step-down module. If the input is greater than the output, the voltmeter will display abnormal when the voltmeter is lower than 4.5V, and the output voltage is normal. It is not a quality problem of the voltmeter. 2, The digital voltage display function is newly added, and the output voltage is clear at a glance, which is very suitable for school students to do experiments.
Specification
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item
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value
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Voltage input range
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DC: 3-30V, AC: 3-20V
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Loads
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below 2A
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Output
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continuously adjustable from 1.25V to 28V
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Circuit board size
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length 68MM width 50M
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Weight
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48g
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Details Images