Programmable Triple Output DC Bench Power Supply
Engineered for advanced R&D bench testing. Whether you need a 3 output dc power supply or a versatile multiple output dc power supply, our models feature galvanically isolated channels, intelligent series/parallel tracking, and a dedicated logic channel. The ultimate linear programmable DC power supply for mixed-signal design and op-amp circuit testing.
Why Choose Premium Triple Output?
Not all bench power supplies are created equal. Our programmable models are designed for the rigorous demands of modern electronics R&D.
Galvanically Isolated Channels
All three outputs are fully galvanically isolated. Connect them to different parts of your circuit without worrying about common ground loops or interference.
Internal Series & Parallel Tracking
Internally connect CH1 and CH2 in series to double voltage (up to 60V) or easily create a symmetric bipolar power supply (+/- Voltage). Parallel mode doubles current for heavy loads.
Dedicated Digital Logic Channel (CH3)
While CH1 and CH2 handle heavy analog loads, CH3 is optimized for digital logic. It provides a highly stable, low-noise output perfect for 3.3V or 5V DSPs and microcontrollers.
SCPI Programmable & Automation
Standard USB/LAN/GPIB interfaces with full SCPI command support. Easily integrate into Automated Test Equipment (ATE) systems or control via Python/LabVIEW.
Advanced OVP/OCP Protection
Hardware-level Over-Voltage and Over-Current protection reacts in microseconds to protect your valuable Device Under Test (DUT) from accidental damage.
Ultra-Low Ripple & Noise (Linear)
True linear-grade performance with ripple and noise < 1mVrms / 3mVp-p. Ensures clean power delivery for RF, audio, and high-precision sensor testing compared to switching supplies.
The Power of Auto-Tracking Mode
The defining feature of a true triple output DC power supply is the ability to easily configure the two main channels. Instead of manually wiring outputs and adjusting two separate knobs, our tracking mode handles it internally.
- Independent ModeThree separate outputs (e.g., 30V/3A, 30V/3A, 5V/3A) for general bench use.
- Series Tracking Mode (Bipolar Supply)Internally connects CH1 & CH2 in series. Double the voltage (up to 60V) or easily create a perfect symmetric bipolar power supply (+Vcc and -Vee) for testing operational amplifiers (op-amps) using a single master dial.
- Parallel Tracking ModeInternally connects CH1 & CH2 in parallel. Double the current (up to 6A) for high-power loads.
Technical Specifications
Typical performance characteristics for our premium series.
| Parameter | CH1 / CH2 | CH3 |
|---|---|---|
| DC Output Rating | 0 to 30V / 0 to 3A | 0 to 5V / 0 to 3A |
| Load Regulation | < 0.01% + 2mV | < 0.01% + 2mV |
| Ripple & Noise (20Hz-20MHz) | < 1mVrms / 3mVp-p | < 1mVrms / 3mVp-p |
| Programming Resolution | 1mV / 0.1mA | 1mV / 0.1mA |
| Transient Response Time | < 50μs | < 50μs |
| Interfaces | USB, LAN (LXI), GPIB (Optional), RS232 | |
Frequently Asked Questions
The Definitive Standard for
Daily Bench Testing.
Not every project requires micro-volt precision, but every bench needs unwavering reliability. The eTM-DM series delivers robust, continuous high-voltage power with an intuitive 4-digit display interface, making it the most cost-effective workhorse for production lines, testing centers, and automotive applications.