For system integrators, panel builders, and electrical engineers specifying power for high-voltage industrial servo drives and motion controllers, the power supply is not an afterthought—it is the foundation of system performance.
The EA-PS 5080-20A (order number 05100307) is a high-performance programmable desktop DC power supply from the EA-PS 5000 A series, delivering 0–80V DC at 0–20A with 640W total output power.
With <0.08% voltage load regulation, <10mV RMS ripple, and <1ms load regulation time, this 80V power supply is engineered for precision automation applications where stability and accuracy are non-negotiable.
1. Product Overview: EA-PS 5080-20A 80V DC Power Supply
The EA-PS 5080-20A is a microprocessor-controlled programmable DC power supply belonging to the EA-PS 5000 A series. It is designed for laboratory, testing, and industrial applications where precision, reliability, and flexibility are paramount.
Key specifications at a glance:
- Output: 0–80V DC, 0–20A, 0–640W
- Input: 90–264V AC, 45–65Hz with active PFC (>0.99 power factor)
- Voltage load regulation: <0.08%
- Voltage line regulation: <0.02%
- Voltage ripple: <80mV PP, <10mV RMS
- Load regulation time: <1ms
- Voltage/current accuracy: <0.2%
- Efficiency: Up to 92%
The unit features a blue LCD display for clear parameter monitoring, 9 preset memories for quick recall of frequently used settings, a key lock function to prevent accidental changes, and a recall function for easy configuration retrieval.
For system integrators and procurement teams evaluating 80V power supply for servo motor applications, the EA-PS 5080-20A offers a compelling combination of precision, power, and programmability that reduces test setup time and improves measurement confidence.
2. Why 80V for Industrial Servo Drives and Motion Controllers
Industrial servo drives and motion controllers commonly operate on 48V, 60V, or 80V DC buses. The 80V bus voltage offers significant advantages for high-performance automation applications:
- Higher power density: At 80V, the same current delivers more power to the motor, enabling higher torque and speed.
- Reduced cable losses: Higher voltage means lower current for the same power, reducing I²R losses in cabling and allowing longer cable runs.
- Compatibility with high-voltage motors: Many brushless DC servomotors and stepper motors are rated for 80V operation.
- Future-proofing: As automation systems demand higher performance, 80V provides headroom for more demanding applications.
Servo drives from major manufacturers—including those used in CNC machines, robotics, packaging equipment, and material handling systems—often specify 80V DC input. The EA-PS 5080-20A provides a clean, regulated, and programmable 80V source for development, testing, and production validation of these systems.
For industrial motion controller supply applications, the power supply must deliver stable voltage under dynamic load conditions—servo drives draw varying current as motors accelerate, decelerate, and hold position. The EA-PS 5080-20A’s <1ms load regulation time ensures that voltage remains stable even during rapid load transients.
TPS Elektronik, with over 25 years of experience in power electronics and EMS services, supports the integration of the EA-PS 5080-20A into factory automation 80V PSU applications across the US and German markets.
3. Auto-Ranging Technology: Flexible Power for Diverse Loads
One of the defining features of the EA-PS 5080-20A is its auto-ranging output stage. Unlike traditional power supplies with a fixed voltage-current curve, auto-ranging technology allows the power supply to deliver full rated power across a wide range of voltage and current combinations.
For a 640W power supply with auto-ranging:
- At 80V, the supply can deliver up to 8A (640W)
- At 40V, the supply can deliver up to 16A (640W)
- At 20V, the supply can deliver up to 20A (400W—limited by current)
This flexibility is invaluable for industrial 80V DC power source applications where the load may vary significantly. A single power supply can be used to test multiple servo drives with different voltage and current requirements, reducing the need for multiple power supplies in the lab or on the production floor.
For CNC machine servo power 80V applications, the auto-ranging capability allows the power supply to handle the wide dynamic range of spindle drives and axis servos without manual reconfiguration.
4. Precision and Stability: Critical for Motion Control
Motion control systems demand exceptional power supply precision. Voltage fluctuations can translate directly to motor speed variations, position errors, and reduced product quality in precision manufacturing.
The EA-PS 5080-20A delivers the precision that precision servo power supply applications require:
- <0.08% voltage load regulation: Output voltage changes by less than 0.08% from no load to full load, ensuring stable motor operation under varying load conditions.
- <0.02% voltage line regulation: Output voltage remains stable even as input AC voltage fluctuates.
- <10mV RMS voltage ripple: Ultra-low ripple ensures clean DC power that does not introduce noise into sensitive servo control loops.
- <0.2% voltage and current accuracy: Precise setpoint accuracy for repeatable test results.
- <1ms load regulation time: Fast transient response maintains voltage stability during rapid load changes.
For robotics power supply 80V applications, where multiple servo axes may start and stop simultaneously, the fast transient response and tight regulation of the EA-PS 5080-20A ensure that all axes receive stable power, preventing unexpected behavior or position errors.
TPS’s commitment to quality is reflected in its certifications—ISO 9001, IATF 16949, ISO 13485, and ISO 14001—ensuring that every power supply meets rigorous quality standards.
5. Comprehensive Protection for Safe Operation
Industrial and laboratory environments demand robust protection features to safeguard both the power supply and the equipment it powers. The EA-PS 5080-20A includes comprehensive protection functions:
- OVP (Overvoltage Protection): Protects connected loads from voltage excursions beyond set limits.
- OCP (Overcurrent Protection): Prevents damage from excessive current draw.
- OPP (Overpower Protection): Shuts down the output if power exceeds safe limits.
- Overtemperature Protection: Reduces output or shuts down if internal temperature exceeds safe operating limits.
The unit is SELV (Safety Extra Low Voltage) compliant and meets EN 55022 Class B EMC standards, ensuring safe operation without external supervision.
For 80V machine tool power supply applications, these protection features are essential—machine tools represent significant capital investments, and protection against electrical faults prevents costly damage and downtime.
The temperature-controlled fan cooling system ensures efficient heat dissipation while maintaining low noise levels, making the EA-PS 5080-20A suitable for both laboratory environments and production floors.
6. Remote Control and Automation Integration
The EA-PS 5080-20A is equipped with a USB interface and comes with LabView VIs and Windows control software, enabling seamless integration into automated test systems.
For system integrators and test engineers, this means:
- Automated test sequences: Program voltage and current setpoints, ramp rates, and dwell times from a PC.
- Data logging: Record voltage, current, and power measurements for analysis and reporting.
- Remote monitoring: Monitor power supply status and parameters from a central control station.
- System integration: Incorporate the power supply into larger test systems with minimal development effort.
For 80V DC automation PSU applications in production test environments, remote control capability reduces test time, improves repeatability, and enables data-driven quality assurance.
TPS Elektronik’s global sales partner network supports integration of the EA-PS 5080-20A into factory automation 80V PSU applications across the US and Europe.
7. Technical Specifications at a Glance
| Parameter | Specification |
|---|---|
| Output Voltage | 0–80V DC |
| Output Current | 0–20A |
| Output Power | 0–640W |
| Input Voltage | 90–264V AC, 45–65Hz |
| Power Factor | >0.99 (active PFC) |
| Efficiency | Up to 92% |
| Voltage Load Regulation | <0.08% |
| Voltage Line Regulation | <0.02% |
| Voltage Ripple (RMS) | <10mV |
| Voltage Ripple (PP) | <80mV |
| Load Regulation Time | <1ms |
| Voltage/Current Accuracy | <0.2% |
| Display | Blue LCD |
| Preset Memories | 9 |
| Interface | USB (LabView VIs included) |
| Protection | OVP, OCP, OPP, Overtemperature |
| Cooling | Temperature-controlled fan |
| Compliance | SELV, EN 55022 Class B |
| Weight | 4.3 kg |
