Item Type: Regulated Power Supply Board
Material: Plastic, aluminum
Maximum Operating Current: 1.5A, 2 channels are 3A
Input Voltage Range: Double 9V - double 24V (4-wire transformer)
Output Voltage: +/- DC 5V to DC 28V or double DC 5V to double +28V, with short circuit protection
Maximum Output Current: 2A
PCB Size: 102x118x37mm / 4.02x4.65x1.46in
There are three gear positions for voltage regulation of the board, which are:
H (high) output voltage above 20V, the highest 28V, suitable for discrete components of the voltage level circuit.
M (medium) 12-18V, suitable for preamplifier.
L (low voltage) output 5V-9V, suitable for DAC power supply
After setting the gear, fine-tune the adjustable resistor to reach the exact value.
The corresponding resistance of H is 33K, and the corresponding resistance of M is 12-18K (the higher the resistance is, the higher the voltage is, but the lowest voltage will also increase). The corresponding resistance of L is 3K3-6K8
When you want to use 2 independent single and double DC outputs, such as 5V and 9V, you can output directly from the green terminal.
If you want to set positive and negative power supply to the operational amplifier, you can short-circuit the fly wire above the gold-plated bonding pad in the middle, and then output positive voltage from VCC and negative voltage from GND grounding VSS.