Stanford Research PS310 Stanford Research PS310 High Voltage Power Supply, ±12 V to ±1.25 kV, 20 mA

The Stanford Research Systems PS310 is a microprocessor-controlled switching high-voltage DC power supply engineered for laboratory and test applications requiring stable, precise output across an extended voltage range. Delivering 25 W of output power, the unit spans ±12 V to ±1.25 kV with dual polarity capability and supports both constant voltage and constant current operation modes.

Technical Specifications

Output Performance

• Voltage range: ±12 V to ±1.25 kV


• Maximum output current: 20 mA


• Output power: 25 W


• Voltage regulation: 0.001% line regulation (±10% line change), 0.04% load regulation (100% load change)


• Voltage set accuracy: ±0.01% + 0.05% of full scale (typical)


• Voltage display accuracy: ±1 V typical, ±2 V maximum


• Voltage resolution: 1 V


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


• Current limit range: 0 to 105% of full scale


• Current trip range: 10 µA to 105% of full scale


• Current set accuracy: 0.5% of full scale


• Stability: 0.01% per hour, <0.03% per 8 hours


• Temperature drift: 50 ppm/°C (10 to 40 °C) Protection & Response

Arc and short circuit protection with programmable voltage limit, current limit, and current trip functions. Trip response time <10 ms. Load recovery time 12 ms for 40% step change. Discharge time <6 s to <1% of full-scale voltage with no load. Input Power
100, 120/220, or 240 VAC; 50 or 60 Hz operation.

Key Features

• Dual-polarity output with independent voltage and current controls


• Front-panel LED displays for voltage and current monitoring


• Programmable via 0–10 VDC analog input (rear panel)


• Dual analog outputs for voltage and current monitoring (1 Ω output impedance, 10 mA drive capability)


• Optional GPIB interface (Option 01)

Typical Applications High-voltage characterization, detector bias, vacuum tube testing, and applications requiring precise current limiting with arc protection.

Compatibility & Integration Analog input and output provisions enable integration with automated test systems. GPIB option supports remote command and monitoring in networked laboratory environments.