Power Design TP343B

The Power Design TP343B is a triple-output DC regulated power supply engineered for laboratory and industrial test applications requiring independent, precision voltage and current control. Each output features adjustable current limiting and over-voltage crowbar protection, with dual-range metering for voltage and current monitoring. Outputs A and B can operate independently or be configured for master/slave tracking, and may be series-connected to deliver higher voltage at reduced current. Output C provides high current capability for low-voltage applications.

– Technical Specifications

Power Input
• Input: 105–125 VAC, 58–440 Hz

Output Ratings
• Output A & B: 0–25 VDC @ 1 A each (alternative: 0–20 VDC @ 2.5 A); series operation: 0–40 VDC @ 2.5 A
• Output C: 0–6 VDC @ 5 A (alternative: 0–15 VDC @ 2.5 A)

Regulation & Stability
• Load regulation: 0.01% + 1 mV/A
• Line regulation: 0.01% + 0.5 mV
• Stability: 0.02% + 1 mV (24 hours, constant conditions)
• Temperature coefficient: 0.02% + 300 µV/°C
• Recovery time: 50 µs (Outputs A & B), 100 µs (Output C) for 10%–100% load change

Protection & Control
• Current limit: Adjustable, 2%–105% of rated current per output
• Over-voltage crowbar: Adjustable, 3–40 V (Outputs A & B); adjustable (Output C)
• Tracking function: Master/slave control for Output B to track Output A, or independent operation
• Fault indicator lamp

– Key Features

• Three independent outputs with individual metering selectors
• Outputs A and B may be series-connected for 0–40 VDC operation
• Dual-range voltmeter and ammeter for each source
• Operating temperature: 0–50 °C
• Binding post output terminals

– Typical Applications

Circuit development and verification, component characterization, subsystem power simulation, and equipment testing where multiple independent or series-combined supplies are required.

– Compatibility & Integration

Front-panel tracking switch enables rapid configuration between independent and synchronized output modes. Adjustable current limiting and crowbar protection accommodate a wide range of load impedances and fault conditions.