The Power Design TW series comprises dual-output regulated DC power supplies engineered for laboratory and industrial applications requiring independent or combined source operation. Each unit features two isolated sources capable of constant voltage and constant current modes with automatic crossover, high-resolution ten-turn potentiometer controls, and dual digital panel metering. Output terminals support floating or grounded configurations, while self-restoring electronic protection guards against overload and short-circuit conditions.
Technical Specifications
Power Design TW-4005
• Output per source: 0–40 V DC, 0–400 mA
• Power per source: 16 W
• Total output power: 40 W
Power Design TW347D
• Output per source: 0–18 V DC, 0–3 A
• CV regulation per source: 0.01% + 0.02% (voltage), 2 mV p-p ripple/noise
• CC regulation per source: 0.02% (current), 10 mA p-p ripple/noise
• Stability (24 hours): Less than 0.01% + 5 mV
• Temperature coefficient: Less than 0.03% + 300 µA per °C
• Load recovery time: Within 50 µs (10% to 100% step change)
• Tracking mode: Source B tracks Source A within 10 mV single-control operation
• Overvoltage protection: Front-panel adjustable crowbar
Power Design TW5005D/TW5005W
• Output per source: 0–50 V DC, 0–500 mA
• Power per source: 25 W
• CV regulation (front terminals): 0.005% + 1 mV (100% load or line change)
• CV regulation (rear terminals): 0.01% + 3 mV (100% load or line change)
– Key Features
• Dual independent sources per chassis with series or parallel combination capability
• All silicon-semiconductor regulator architecture
• Operating temperature range: 0 to 50 °C with no derating
• Self-restoring electronic protection against overload and short circuits
• High-resolution potentiometric adjustment for voltage and current
• Dual digital panel meters with switch-selectable metering
– Typical Applications
Bench characterization, device testing, circuit development, and industrial burn-in operations requiring stable, regulated dual-output power with independent load management and protection.
– Compatibility & Integration
Floating or grounded output configurations support flexible integration into both single and multi-supply test architectures.
