The Best
60V Variable
DC Power Supplies
for Lab & Industrial Use
In the world of modern electronics, 60V has become the critical threshold. It bridges the gap between low-voltage logic (3.3V/5V/12V) and high-power traction systems (48V e-mobility, 60V battery stacks).
ExpressoFilm's curated selection of Variable DC Power Supplies offers the precision you need for BMS testing, driver development, and semiconductor characterization. Whether you need the raw density of Switching topology or the silence of Linear architecture, we define the standard.
Topology Matters: Switching vs. Linear
Choose the right architecture for your specific workload.
| Feature | ETM-Series (Switching) | L-Series (Linear) | Ideal For |
|---|---|---|---|
| Current Output | High (10A - 100A+) | Medium (3A - 5A) | Automation vs Sensitivity |
| Ripple & Noise | < 10mVrms | < 350μVrms (Silent) | Motors vs Sensors |
| Transient Response | < 2ms | < 50μs (Instant) | Dynamic Loads |
| Primary Use | Factory / EV Battery / Electrolysis | Audio / Medical / Calibration |
Select by Current Rating
Why "Variable" matters: match the amperage to your specific engineering challenge.
Industrial Powerhouse
For electroplating, hydrogen production, and server rack manufacturing. Replaces massive legacy variacs with switching precision.
R&D Workhorse
The standard for LED driver development and simulation.
Ultra-Precision
For semiconductor characterization and leakage current testing (uA level). The Research Laboratory Standard.
Repair Bench
The safe choice for daily repair workflow. Lower energy potential protects sensitive logic boards.
Engineer's Guide: Why "Variable"?
Constant Voltage (CV) vs Constant Current (CC)
For battery charging and LED driver testing, CC Mode is non-negotiable. Our variable supplies automatically crossover between CV and CC, allowing you to safely charge lithium packs without external current limiters.
OVP (Over Voltage Protection)
When testing expensive DUTs, a PSU failure can mean thousands in damages. Our programmable units feature hardware-level OVP that cuts output in microseconds if voltage drifts.
Remote Compensation (Sense)
At high currents (10A+), voltage drop across cables can be significant. Our Pro models include Remote Sense terminals to ensure exactly 60.00V reaches your load.
eTM-K6015SPL
Packing 15A of current into a compact chassis. The K-Series is the go-to for automated test systems (ATE). With built-in RS232/USB, you can script voltage ramps for burn-in testing.
VIEW K-SERIES
eTM-L605SPV+
For audio amplifier testing or ADC characterization, switching noise is the enemy. The L-Series uses a massive toroidal transformer to deliver pure, flat-line DC power.
VIEW L-SERIESETM SERIES SPECIFICATIONS
| MODEL | VOLTAGE | CURRENT | POWER | RIPPLE (P-P) | INTERFACE |
|---|---|---|---|---|---|
| eTM-60100C | 0 - 60V | 0 - 100A | 6000W | < 150mV | LAN / RS485 |
| eTM-6050C | 0 - 60V | 0 - 50A | 3000W | < 100mV | LAN / RS485 |
| eTM-6010SPL | 0 - 60V | 0 - 10A | 600W | < 50mV | RS232 |
| eTM-305P | 0 - 30V | 0 - 5A | 150W | < 30mV | USB |
Real-World Applications
Specific product recommendations for common testing scenarios
Battery Management System (BMS) Testing
For lithium-ion battery packs (48V nominal), a 60V supply provides necessary headroom for full charge cycles (54.6V for 13S configuration). The K-Series offers CV/CC crossover for charge simulation, with 10A matching typical BMS current ranges.
- Programmable voltage ramping for charge profiles
- RS232/USB for automated test sequences
High-Power LED Array Testing
High-power LED arrays for stadium lighting and industrial applications require 50A+ current capability. The eTM-6050C handles thermal stress testing and long-duration burn-in cycles for production validation of high-brightness LED modules.
- 50A for high-power LED array testing
- Programmable thermal cycling profiles
Precision ADC Characterization
High-resolution ADC testing demands ultra-stable, noise-free power. The L601SPL flagship linear supply achieves <100μVrms noise floor with exceptional load regulation, essential for 24-bit ADC characterization and precision sensor calibration.
- Ultra-low noise (<100μVrms) for precision measurements
- Exceptional load regulation for stable references
Industrial Automation Testing
Factory automation equipment (motor controllers, PLCs, servo drives) requires high-current testing at 48-60V. The 100A rating handles worst-case inrush currents and sustained load testing for production validation.
- 100A for high-power motor testing
- Remote Sense for accurate voltage at load
Frequently Asked Questions
Common questions about 60V variable DC power supplies
Q:What is the difference between CV and CC mode?
CV (Constant Voltage) mode maintains a fixed voltage output regardless of load changes, while CC (Constant Current) mode maintains a fixed current output. For battery charging and LED driver testing, CC Mode is essential as it prevents overcurrent damage. Variable DC power supplies automatically crossover between CV and CC modes.
Q:Can I use a switching power supply for audio testing?
No. Audio amplifier testing requires linear topology due to noise sensitivity. Switching supplies have ripple noise of <10mVrms, while linear supplies achieve <350μVrms. For audio, medical devices, or ADC characterization, use L-Series linear power supplies like the eTM-L605SPV.
Q:What voltage range do I need for 48V battery testing?
For lithium-ion battery packs with 48V nominal voltage, a 60V supply provides necessary headroom for full charge cycles (54.6V for 13S configuration). The eTM-K6010SPL (60V 10A) is ideal for BMS testing and charge simulation.
Q:What is the difference between eTM-Series and L-Series?
eTM-Series uses switching topology for high power density (10A-100A), ideal for industrial automation. L-Series uses linear topology with toroidal transformers for ultra-low noise (<350μVrms), perfect for precision measurement and audio testing.
Q:Do I need Remote Sense for my application?
At high currents (10A+), voltage drop across cables becomes significant. Remote Sense terminals compensate by measuring voltage directly at the load, ensuring exactly 60.00V reaches your device. Essential for precision applications. Available on Pro models like eTM-K6015SPL.
Ready to Scale Your Test Bench?
Browse our complete catalog of ETM-Series (High Power) and L-Series (Linear) models on our online inventory and sales site.
Check Online Stock & Prices