Lambda / TDK / EMI GEN 20-76

The TDK-Lambda GEN 20-76 is a 1U rack-mount programmable DC power supply delivering 1520 W across a single output. Operating from 85–265 VAC single-phase input (47–63 Hz), the unit achieves 0.99 typical power factor and includes active inrush current limiting to less than 25 A at 100 VAC or 50 A at 200 VAC. Output voltage ranges 0–20 Vdc at 0–76 A with 86% typical efficiency. The supply features constant voltage/constant current auto-crossover, integrated over-voltage, over-current, and over-temperature protection, and supports advanced parallel operation of up to four units. RS-232/RS-485 communications are standard; optional interfaces include IEEE GPIB, LAN (LXI-compliant), USB 2.0, and isolated analog programming (0–5 V or 0–10 V selectable).

## Technical Specifications

• **Output Power:** 1520 W maximum
• **Output Voltage:** 0–20 Vdc
• **Output Current:** 0–76 A
• **Voltage Ripple & Noise:** 0.008 Vrms (5 Hz to 1 MHz)
• **Current Ripple & Noise:** 0.152 Arms (5 Hz to 1 MHz)
• **Efficiency:** 86% typical
• **Input Voltage:** 85–265 VAC continuous, single-phase
• **Input Frequency:** 47–63 Hz
• **Power Factor:** 0.99 typical at 100/200 VAC, rated output power
• **Hold-up Time:** Greater than 20 ms at 100 VAC, 100% load
• **Form Factor:** 1U rack mount / bench top; 43.6 mm H × 422.8 mm W × 432.8 mm D
• **Weight:** 8.5 kg typical
• **Warranty:** 5 years

## Key Features

• Constant voltage/constant current auto-crossover regulation
• Four-digit LED meters for voltage and current display
• Encoder-based voltage and current adjustment
• Remote sense and remote enable/disable standard
• Parallel operation supports up to four units in advanced configuration
• Multi-drop control over RS-485 (up to 31 units daisy-chained)
• Configurable analog programming via external 0–5 V or 0–10 V input

## Interfaces & Communication

• RS-232/RS-485 standard
• Optional IEEE GPIB, LAN (LXI), USB 2.0, isolated analog interface
• Global command set for remote operation

## Typical Applications

OEM manufacturing, industrial test benches, laboratory bench and rack-mount systems requiring high current at moderate voltage with precision regulation and networked control.