Rigol DP832A 195 W Triple Output Programmable Linear DC Power Supply
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The Rigol DP832A is a premium, triple-output, linear bench power supply known for its ultra-low noise performance and excellent build quality. Favoured by professionals in R&D, education, and production test environments, it offers precision, safety, and versatility in a single compact unit.
Overview
Providing up to 195 W across three isolated channels, the DP832A offers industry-leading accuracy (0.03% + 10 mV), low ripple ( < 350 µVrms), and a sleek high-resolution display. It includes advanced protection features and measurement functions usually found in higher-priced laboratory instruments.
Key Features & Specs
- 3 outputs: CH1 (0–30 V/3 A), CH2 (0–30 V/3 A), CH3 (0–5 V/3 A)
- Total output power: 195 W
- High accuracy voltage readback: 0.03% + 10 mV
- Low ripple and noise: < 350 µVrms / 2 mArms
- 3.5″ TFT display with numeric keypad and encoder dial
- Built-in voltmeter and ammeter for each channel
- OVP/OCP protection, programmable delay, list mode, and triggering
- Interfaces: USB Host / Device, LAN, RS-232 (standard)
- Weight: 9 kg
Pros
- Ultra-low noise linear design
- Excellent precision and measurement repeatability
- Premium build and intuitive interface
- Fully programmable with LAN and USB control
- Reliable for both educational and industrial use
Cons
- Larger and heavier than switch-mode alternatives
- Fan noise noticeable under high load
Who It’s For
- Professional labs needing high accuracy and multi-rail power delivery
- Research and R&D teams testing sensitive analog or RF circuits
- Educators and trainers seeking a durable, trusted supply for demonstrations
- Advanced hobbyists ready to invest in a lifetime-grade instrument
- Manufacturing and QA environments requiring consistent, calibrated outputs
Verdict
The Rigol DP832A sits at the top of the bench-power ladder for a reason: quiet, accurate, and built like a tank. Its linear design ensures the cleanest output possible for sensitive circuits, and its control options make it equally useful in manual and automated test setups. If you want a lab-grade supply that will last for years, this is the one to feature.