Whether you’re designing PCBs in a university lab, debugging circuits on a production bench, or powering embedded systems for development, a reliable DC power supply is one of the most essential tools on your workbench.
In 2025, the market offers a wide range of DC power supplies—from budget-friendly models for hobbyists to high-performance programmable supplies used in automation and high-voltage testing. To help you find the right one, we’ve handpicked 10 of the best DC power supplies that strike a balance between performance, price, and reliability.
Best Performance
RIGOL DP832 Programmable DC Power Supply
- Three Independent Outputs (2x 30V/3A, 1x 5V/3A)
- Ultra-low ripple and noise for clean power
- High resolution of 1mV / 1mA
- 3.5-inch color display with waveform view
Best Value
Siglent SPD3303X-E Programmable DC Power Supply
- Three isolated outputs with remote sensing
- 4.3-inch TFT-LCD display (480x272)
- 5 groups of timing settings and output control
- Intelligent temperature-controlled fan for quiet operation
ITECH IT6873B Programmable DC Power Supply
- Dual-range output (75V/2A and 32V/4A)
- High resolution up to 1mV / 0.1mA
- Comprehensive protection: OVP, OCP, OTP
- Supports SCPI commands with multiple interfaces
RIGOL DP813A Programmable DC Power Supply
- Single high-power output (e.g., 8V/20A)
- Excellent load and line regulation for stability
- List function for complex output sequences
- Multiple interfaces: USB, LAN, RS232, optional GPIB
Siglent SPD4323X Programmable DC Power Supply
- Four independent output channels
- Series and parallel functionality to extend range
- Remote voltage compensation for accuracy
- Comprehensive OVP and OCP protection
Tonghui TH6302 Programmable DC Power Supply
- High current output up to 20A (at 30V)
- 4.3-inch 24-bit color TFT LCD
- High precision with low noise output
- List and step output for automated sequences
Tonghui TH6431 Programmable DC Power Supply
- Compact three-channel output (2x 30V/3A, 1x 5V/1A)
- Accurate output with very low ripple and noise
- Multiple protection modes (OVP, OCP, OTP)
- Standard RS232 and USB connectivity
ITECH IT6942A Wide-Range DC Power Supply
- Flexible wide-range output within rated power
- Remote compensation for precise testing
- Clear VFD display with intuitive controls
- Programmable output timer function
Hantek HDP135V6S Programmable DC Power Supply
- Ultra-low ripple for sensitive electronics
- Four-digit display resolution (10mV/1mA)
- USB fast charging support
- PC software control via RS232 serial port
Hantek HDP4424 Four-Channel DC Power Supply
- Four electrically isolated and adjustable channels
- High resolution of 1mV / 1mA
- Fast transient response (≤50μs)
- 4.3-inch color display with waveform visualization
