UNI-T UTP3305-II Triple-Channel Linear DC Power Supply: Advanced Bench Solution for Electronics Professionals

Overview

The UNI-T UTP3305-II is a professional-grade triple-channel linear DC power supply designed for electronics laboratories, R&D facilities, and production environments that demand precise, clean power with multiple outputs. Featuring two adjustable dual channels alongside a fixed 5V output, this versatile power supply combines superior power quality, advanced tracking capabilities, and comprehensive protection features to deliver the reliable performance essential for sophisticated electronics testing, development, and educational applications.

Key Features

• Triple-Channel Output: Two adjustable channels (0-32V/0-5A) plus fixed 5V/3A output
• Dual Operation Modes: Channels work independently or with series/parallel tracking
• High-Precision Display: 4-digit voltage and current display with 10mV/1mA resolution
• Superior Power Quality: Low ripple and noise (CV≤1mVrms; CC≤3mArms)
• Excellent Load Regulation: CV≤0.01%+3mV, CC≤0.2%+3mA for stable output
• Advanced Tracking Function: Precise bias tracking (±(0.1% of reading+30mV))
• Comprehensive Protection: Over voltage/current protection systems
• Temperature-Controlled Cooling: Intelligent fan system prevents overheating
• Output Control: Convenient on/off control for each channel
• Robust Construction: Durable design with compact footprint for laboratory use

Professional Applications

Research & Development Laboratories

Power multiple circuit components simultaneously with precise, clean outputs. The UTP3305-II's triple channels allow engineers to supply different sections of complex circuits with individual voltage/current requirements, while the tracking function enables symmetrical power for differential circuits. The low noise performance ensures accurate test results unaffected by power artifacts.

Electronic Education and Training

Provide students with a versatile power platform for a wide range of experiments. The triple outputs support multiple project needs, while the clear 4-digit display makes it easy to monitor settings. Safety features protect against accidental misuse, making this power supply ideal for educational environments from technical schools to university laboratories.

Production Testing and Quality Control

Support manufacturing test stations with reliable, consistent power delivery. The UTP3305-II can power device under test (DUT) circuits while simultaneously providing auxiliary power to test fixtures. The series/parallel capabilities allow for flexible configuration to meet varying production testing requirements.

Circuit Design and Prototyping

Develop and test complex electronic systems requiring multiple voltage rails. The independent control of each channel enables precise power sequencing, while the excellent regulation ensures stable performance even as load conditions change during testing. The fixed 5V channel is perfect for powering digital logic while the adjustable channels handle analog components.

Electronics Repair and Servicing

Diagnose and repair electronic equipment with a versatile power source. Technicians can simultaneously power different sections of devices under repair, comparing performance against specifications. The adjustable current limiting provides protection when working with unknown or potentially faulty equipment.

Technical Specifications

Why Choose the UNI-T UTP3305-II?

Versatile Multi-Channel Configuration

The UTP3305-II offers exceptional flexibility with its triple-channel design. Two fully adjustable channels (0-32V/0-5A) can be operated independently or in tracking mode, while the additional fixed 5V/3A channel is perfect for powering digital circuits. This versatility eliminates the need for multiple power supplies, saving bench space and reducing equipment costs.

Superior Tracking Capability

With advanced tracking functionality and precise bias control (±(0.1% of reading+30mV)), the UTP3305-II excels at providing symmetrical power for differential circuits, op-amp configurations, and balanced power systems. This tracking accuracy ensures proper operation of sophisticated circuits that depend on matched power characteristics.

Laboratory-Grade Power Quality

Featuring exceptionally low ripple and noise (CV≤1mVrms; CC≤3mArms) and excellent load regulation, the UTP3305-II delivers the clean, stable power essential for sensitive electronics work. This superior power quality prevents measurement errors and ensures that circuit performance isn't compromised by power supply artifacts.

Comprehensive Protection Systems

Integrated over-voltage and over-current protection safeguards both the power supply and your valuable circuits from damage. The temperature-controlled cooling fan maintains optimal operating conditions even during extended use, enhancing reliability and extending component life.

Professional-Grade Precision

The high-resolution 4-digit displays with 10mV/1mA precision provide clear visibility of exact voltage and current settings. This level of detail, combined with fine adjustment capabilities, gives engineers and technicians the precise control needed for critical applications where power parameters must be tightly controlled.

Package Contents

• UTP3305-II Triple-Channel Linear DC Power Supply
• Power Cord Conforming to the Standard of the Destination Country
• Test Output Line
• User Manual

Customer Testimonials

"The UTP3305-II has been instrumental in our electronics lab. The triple outputs let us power digital and analog sections simultaneously, while the tracking feature is perfect for our differential amplifier development. The power quality is exceptional - we haven't seen any supply-related noise in our sensitive measurements." - Robert M., Senior Electronics Engineer

"As an electronics instructor overseeing a lab with 20 workstations, I needed reliable power supplies that offer versatility without complexity. The UTP3305-II provides everything my students need - multiple outputs, clear displays, and safeguards that prevent damage from inevitable mistakes. Three years into our purchase, they're still performing flawlessly despite heavy use." - Jennifer L., Technical College Department Chair

Warranty and Support

The UNI-T UTP3305-II includes a comprehensive 3-year manufacturer's warranty and technical support. Our team of power electronics specialists is available to help you maximize the value of your power supply with application assistance and technical guidance.

Frequently Asked Questions

What is the advantage of having three channels in a power supply?

A triple-channel power supply like the UTP3305-II offers significant versatility for complex electronics work. You can simultaneously power multiple circuit sections with different voltage requirements, such as digital logic (using the fixed 5V output) and analog components (using the adjustable channels). This eliminates the need to swap connections or use multiple power supplies, streamlining your workflow and saving bench space.

How does the tracking function work?

The tracking function allows the two adjustable channels to maintain a proportional relationship. When enabled, adjusting one channel automatically adjusts the other at the same ratio, which is essential for circuits requiring symmetrical power supplies (like op-amps and differential amplifiers). The UTP3305-II offers excellent tracking accuracy with a bias of only ±(0.1% of reading+30mV), ensuring precision for sensitive applications.

Can the adjustable channels be combined for higher voltage or current?

Yes, the UTP3305-II supports both series and parallel operation of the adjustable channels. In series mode, you can achieve up to 64V (32V + 32V) while maintaining the same current capacity. In parallel mode, you can combine the current capability to deliver up to 10A at 32V. This flexibility allows the power supply to adapt to a wide range of power requirements.

What makes a linear power supply better than a switching power supply?

Linear power supplies like the UTP3305-II offer significantly lower noise and ripple compared to switching designs. This clean power is essential for sensitive analog circuits, precision measurements, audio applications, and RF testing where even small power fluctuations can affect results. While switching supplies are more efficient, the superior power quality of linear supplies makes them the preferred choice for professional electronics development and testing.

Is this power supply suitable for educational environments?

Absolutely. The UTP3305-II is ideal for educational settings due to its clear displays, multiple outputs, and protective features. Students can experiment with various circuit configurations using different voltage rails while the current limiting and protection systems prevent damage from wiring errors or short circuits. The intuitive operation and durable construction make it suitable for hands-on learning in electronics and electrical engineering programs.

Ready to Elevate Your Electronics Testing and Development?

UNI-T - Professional Measurement Solutions for Industry Leaders

Keywords: triple channel power supply, linear bench power supply, laboratory DC power supply, adjustable voltage source, multi-output power supply, tracking power supply, electronic testing equipment, education lab equipment, UNI-T UTP3305-II, low noise power supply