How to connect a dual channel DC stabilized voltage and current power supply?

Wiring method:

1. Common ground positive and negative power supply: Short circuit one negative pole to the other positive pole as the common ground (GND), and connect the remaining positive and negative poles to the positive and negative terminals of the load respectively.

2. Independent output: Two power sources are completely independent and connected to different loads.

Reason: The common ground connection method can generate positive and negative voltages (such as ± 12V), meeting the requirements of bipolar circuits; Independent output is suitable for multiple independent power supply scenarios.

Instructions for wiring steps:

1. Common ground connection method: Short circuit the first negative pole and the second positive pole with a wire to form a common ground (GND), and connect the remaining positive and negative poles to the load separately. It is suitable for circuits that require positive and negative voltages (such as ± 15V).

2. Independent connection method: The two outputs are completely isolated and directly connected to different loads to avoid common ground interference.

Attention: Power off before wiring to ensure correct polarity and load not exceeding the rated current of the power supply.

Product Recommendation

The NICE-POWER SPS-2KD Series is a versatile, high-performance lineup of dual-independent-output DC power supplies. Designed by Shenzhen Kuaiqu Electronic Co., Ltd., it integrates functionality, precision, and space-saving design, serving as a reliable choice for both laboratory and industrial use.

This series has two key selling points. First is its 4-in-1 versatility with one-key mode switching: it replaces multiple single power supplies to save space and costs. Via dedicated buttons, users can easily switch between three core modes—"INDEP" (dual independent channels, no cross-interference, separate voltage/current control), "SER" (series mode for higher voltage), and "PAR" (parallel mode for higher current)—with no complex wiring, thanks to dedicated SER/PAR ports. Second is its strong adaptability: it supports dual-polarity output (ideal for circuit boards and DC motors, enabling simultaneous positive/negative voltage) and has a fixed 3rd USB channel (5V/2A) for small devices like smartphones or USB sensors. A high-precision encoder knob also ensures accurate voltage/current adjustments and stable long-term performance.

The series includes four models, each optimized for specific application needs:

• SPS305-2KD: With independent 0-30V/0-5A channels, series 0-60V/0-5A, and parallel 0-30V/0-10A, it excels in low-to-moderate current scenarios such as educational experiments, basic electronic development, and powering small sensor modules.

• SPS3010-2KD: Boasting independent 0-30V/0-10A channels, series 0-60V/0-10A, and parallel 0-30V/0-20A, this model is perfect for high-current applications like powering DC servo motors, precision drives, and industrial production line control systems.

• SPS605-2KD: Featuring independent 0-60V/0-5A channels, series 0-120V/0-5A, and parallel 0-60V/0-10A, it suits medium-voltage needs such as laboratory testing of analog signal boards, plating battery maintenance, and industrial equipment calibration.

• SPS1203-2KD: Offering independent 0-120V/0-3A channels, series 0-240V/0-3A, and parallel 0-120V/0-6A, it is designed for high-voltage applications like solar panel repair, high-voltage circuit testing, and advanced electronic R&D projects.

Product line：https://www.kuaiquinstrument.com/products/sps-2kd?variant=46231954161841.

For more high-quality products, please follow the official website of KUAIQU: KUAIQU DC Power Supplies for Labs & Industry-High Precision & Reliable – KUAIQU Instrument Store.