AC to DC LM317 LM337 Adjustable Positive Negative Supply Voltage Regulator2513
PCB LAYOUT design, the entire circuit board is grounded at one point. Even if multiple devices and lines share a power board, no power ground loop be generated. Without a ground loop, no hum be generated. Solve the ground loop problem from .

Features:
The rectification part adopts 4 rectifier diodes, and each diode has an anti-interference capacite in parallel, which can prevent the useful signal (usually high frequency signal) and the power frequency signal (50Hz), Mutual modulation is generated on the rectifier diode. Thereby generating an interference signal, interfering with the normal operation of the machine. eliminating the "modulated hum", and eliminating the interference source from the root cause for circuit.
Specification:
Voltage Input: three-wire AC double 28V or less
Voltage Output: 1.25V to 30V positive and negative voltage continuously adjustable.
The adjustable output voltage is as low as 1.2V. Guaranteed 1.5A output current.
Typical linearity adjustment rates is 0.01%. Typical load regulation is 0.1%. 80dB ripple rejection ratio.
Output short circuit protection. Overcurrent protection, overheat protection.
NOTE: The supply of fever capacites is unstable, and the capacite be sold with different when shipped. The pictures just for reference only.
Color: Black
Material: PCB+Metal

Package Contents:
1 * Adjustable Voltage Regulator Board