The Lambda/TDK LPD421A-FM is a dual-output, adjustable regulated DC power supply engineered for laboratory, educational, and industrial applications. Each independent channel delivers 0–20V DC at 0–1.7A, with a maximum power output of 68W per channel. Exceptionally low ripple (500 µVrms) and tight line/load regulation (≤0.01% + 1mV) ensure stable power for precision testing, circuit development, prototyping, and repair work. Both outputs can operate independently or be configured in series for doubled voltage or parallel for doubled current (3.4A maximum). Comprehensive front-panel meters monitor voltage and current simultaneously for each channel, while coarse and fine adjustment controls provide precise output tuning. Built-in overload protection, automatic current limiting, and thermostat-based thermal shutdown safeguard equipment and circuits. Convection cooling eliminates external heat sinks.
Technical Specifications
• Output Channels: Dual independent outputs
• Voltage Range: 0–20V DC per channel
• Current Range: 0–1.7A per channel
• Maximum Power: 68W per channel
• Line Regulation: ≤0.01% + 1mV
• Load Regulation: ≤0.01% + 1mV
• Ripple and Noise: 500 µVrms
• Input Voltage: 115V/230V AC switchable (105–132 VAC, 47–440 Hz)
• Series/Parallel Operation: Up to 40V or 3.4A maximum
• Fuse Protection: 3A, 3AG SLO-BLO
• Dimensions: 5-3/16″ W × 8-3/8″ H × 10-13/32″ D
– Key Features
• Independent voltage and current adjustment per channel
• Series/parallel operation with auto master-slave tracking capability
• Adjustable electronic current limiting set to 105% of rated current
• No overshoot on turn-on, turn-off, or power failure
• Automatic reset thermostat for overtemperature protection
• Separate voltmeter and ammeter per output channel
• Rear terminal block and front five-way binding posts
• Convection cooling; bench-top form factor
– Typical Applications
• Research and development circuit testing
• Educational laboratory experiments and demonstrations
• Production assembly line testing and quality assurance
• Device prototyping and repair work
– Compatibility & Integration
Alternative AC input versions available for 205–265 VAC, 50 Hz or 187–242 VAC, 50 Hz operation.
