The Rohde & Schwarz HMC8043-G is a three-channel programmable DC power supply designed for laboratory, production, and automated test environments. It delivers 115 W maximum output across independent channels with voltage ranges from 0–30 V and 0–5 V, and current capability to 5 A. Voltage and current outputs are fully programmable with adjustable overvoltage, overcurrent, and over-temperature protection. The instrument features low ripple and noise performance (< 500 µV RMS typical on 30 V channels), rapid transient response under 50 µs, and dual control modes (CV/CC). Remote sensing, sequencing, and user preset storage enable flexible integration into complex test workflows.
Technical Specifications
Output Configuration
• 3 independent channels: 2× (0–30 V / 0–1 A) and 1× (0–5 V / 0–5 A)
• Total output power: 115 W maximum
• Voltage readout accuracy: ±(0.1% of reading + 0.05% of range)
• Current readout accuracy: ±(0.1% of reading + 0.05% of range)
Voltage and Current Regulation
• Line regulation: < 0.01% + 1 mV
• Load regulation: < 0.02% + 2 mV
• Ripple and noise (RMS): < 500 µV (30 V channels), < 1 mV (5 V channel)
• Ripple and noise (peak-to-peak): < 5 mV (30 V channels), < 2 mV (5 V channel)
• Transient response: < 50 µs for 50% load change
Protection and Sensing
• Overvoltage protection (OVP): Adjustable per channel
• Overcurrent protection (OCP): Adjustable per channel
• Over-temperature protection (OTP): Yes
• Remote sensing: Yes, per channel
Input and Power
• Input voltage: 100–240 V AC, 50–60 Hz
• Power consumption: 250 VA maximum at full load
• Inrush current: < 10 A (cold start)
– Key Features
• 4.3-inch high-resolution color TFT display with digital readout
• Programmable voltage and current sequencing
• USB and Ethernet connectivity; optional IEEE 488 GPIB and Digital I/O
• Multiple output presets for configuration storage
• Forced-air cooling with variable fan speed control
• Benchtop form factor: 210 mm (W) × 100 mm (H) × 330 mm (D), 6 kg
– Typical Applications
• Component and circuit testing in R&D laboratories
• Production line automated test equipment (ATE)
• Power supply validation and characterization
• Multi-rail device testing with independent channel control
– Compatibility & Integration
USB device and Ethernet connectivity enable both local control and remote automation. Optional IEEE 488 GPIB support accommodates legacy test systems. Constant voltage and constant current modes address diverse load requirements.
