Stanford Research PS365 – High Voltage Power Supply

The Stanford Research Systems PS365 is a high-voltage DC power supply engineered for precision applications requiring stable, adjustable positive voltage output across 100 V to 10 kV. Part of the PS300 series, the PS365 delivers 10 W of clean power with output ripple below 0.01% of full scale (300 Hz to 300 kHz), making it suitable for sensitive experimental setups in physics research, materials science, and detector biasing. The unit combines rugged, compact construction with remote control capability via analog input, GPIB, and RS-232 interfaces.

Technical Specifications

• Range: +100 V to +10 kV, single-polarity positive


• Set accuracy: 0.01% + 0.05% of full scale or 0.05%


• Display accuracy: ±1 V typical, ±2 V maximum


• Resolution: 1 V (set and display)


• Regulation: 0.001% for ±10% line change; 0.04% for 100% load change


• Output ripple: <0.01% of full scale (300 Hz to 300 kHz) Output Current


• Maximum: 1 mA


• Limit range: 0 to 105% of full scale


• Trip range: 10 µA to 105% of full scale


• Trip response time: <10 ms


• Set accuracy: 0.5% of full scale or 1 µA


• Resolution: 1 µA


• Display accuracy: ±1 µA typical, ±2 µA maximum Performance Characteristics


• Power output: 10 W


• HV slew rate: 7,000 V/s typical


• Recovery time: 12 ms (40% load step change, typical)


• Discharge time: <6 s to <1% full scale, no load


• Stored output charge: <20 µC maximum


• Temperature drift: 50 ppm/°C (0 to 50 °C)

Key Features

• Arc and short-circuit protection with programmable limits


• Rear-panel analog input for 0 to 10 VDC voltage programming


• Dual monitoring outputs (voltage and current) via BNC connectors (0 to +10 V)


• GPIB and RS-232 interfaces for remote operation


• Front-panel numeric keypad with nine-position configuration memory


• High-voltage output via Kings type 1064-1 connector


• Field-proven reliability in both research and automated test environments

Typical Applications

• Detector biasing in particle physics experiments


• High-voltage experimental setups in condensed matter physics


• Materials characterization requiring stable, low-noise excitation


• Precision sensor operation in laboratory instruments

Compatibility & Integration The PS365 integrates with existing automation and data acquisition systems through GPIB and RS-232 protocols. Analog input and output provisions support closed-loop control and real-time voltage/current monitoring. Compact form factor fits standard laboratory benches and test racks.