Kepco ATE25-40M

The Kepco ATE25-40M is a 1000 W programmable DC power supply engineered for laboratory and industrial test environments requiring precise voltage and current regulation. This analog-controlled linear supply operates in constant voltage (CV) and constant current (CC) modes with automatic crossover, delivering 0–25 VDC at 0–40 ADC. Selectable Normal and Fast programming modes accommodate different response requirements, while low-noise output (< 0.1 mV RMS, < 1 mV peak-to-peak in slow mode) and tight load regulation (< 0.01% E₀) ensure measurement accuracy across demanding applications.

Technical Specifications

Output: 0–25 VDC, 0–40 ADC (1000 W maximum)

Input: 95–125 VAC or 190–250 VAC (factory-configured), 47–65 Hz, 20 A @ 115 V / 10 A @ 230 V

Line Regulation: < 0.0005% E₀ max

Load Regulation: < 0.01% E₀ max (voltage mode)

Drift (8-hour): < 0.005% E₀ max

Output Impedance (Voltage Mode): 12.5 mΩ series resistance, 1 µH series inductance

Output Impedance (Current Mode): 50 kΩ shunt resistance, 4 µF shunt capacitance

Programming Bandwidth: 8.0 kHz minimum

Programming Time Constant: 20 µsec (slow mode)

Key Features

10-turn precision potentiometers for local voltage and current control

Remote programming via PC-12 mating plug with voltage signal or two-terminal resistance configuration

Programmable crowbar-type overvoltage protection with external signal control

Automatic CV/CC mode crossover with optically isolated TTL-compatible mode flag output

Full zeroing and full-scale calibration on both voltage and current channels

Analog front-panel meters for real-time voltage and current monitoring

Typical Applications Precision equipment testing, device characterization, system integration tasks, and calibration work in environments requiring stable, low-noise DC power with fast transient response.

Compatibility & Integration PC-12 rear connector supports configurable jumper-based control and flag signal access for V/C mode indication.