QL355 – High-Precision Linear Regulated DC Power Supply

The Aim-TTi QL355 stands as a benchmark in high-precision power management, specifically engineered for laboratory environments where noise-free, stable power is a non-negotiable requirement. Unlike standard switching power supplies that can introduce electromagnetic interference, the QL355 utilizes pure linear regulation. This architectural choice ensures that the output remains exceptionally clean, making it the ideal choice for powering sensitive analog circuits, high-fidelity audio components, and delicate semiconductor devices during the research and development phase.

Superior Control and Millivolt Precision

At the heart of the QL355 is an advanced digital control system driven by 16-bit DACs. This allows engineers to set voltage and current with incredible granularitydown to millivolt and milliamp levels. The unit provides a versatile output range of 0 to 35V and up to 5A, totaling 105W of power. Its high-definition digital display provides real-time, simultaneous monitoring of both voltage and current, ensuring that you have absolute visibility into the power consumption of your device under test (DUT). The inclusion of a “Numeric Entry” keypad alongside quasi-analog rotary knobs offers the perfect balance between rapid setting adjustments and fine-tuning.

Advanced Safety and Load Protection

• Comprehensive Protection Suites: The QL355 is equipped with fully adjustable Over Voltage Protection (OVP) and Over Current Protection (OCP) trip buffers. These act as a fail-safe, instantly cutting power to protect expensive prototype boards from accidental surges.
• Remote Sense Capability: To eliminate errors caused by voltage drops in lead wires, the unit features dedicated remote sense terminals. This ensures that the precise programmed voltage is delivered directly at the load terminals, regardless of cable length.
• Multiple Output Ranges: The power supply features a multi-range capability, allowing it to provide higher current at lower voltages, adding a layer of flexibility for different project requirements.

Industrial Reliability and Bench-top Ergonomics

Designed for longevity, the QL355 is housed in a rugged, compact chassis that occupies minimal bench space. Its silent cooling system ensures a quiet working environment, while its robust internal thermal management prevents overheating during long-duration stress tests. Whether it is being used in a university physics lab for fundamental research or in a professional electronics facility for system validation, the QL355 delivers the “pure power” and repeatability that modern engineering demands.