Wisman PRC Series ±30 kV Reversible-Polarity High-Voltage DC Power Supply

Overview

The Wisman PRC Series is a precision-engineered, reversible-polarity high-voltage DC power supply designed specifically for demanding OEM and laboratory applications requiring rapid, safe polarity inversion under active load conditions. Based on zero-current resonant topology and advanced high-voltage insulation architecture, the PRC delivers stable, ultra-low-noise output across a programmable range of ±5 kV to ±30 kV at up to 10 W continuous power. Its core functionality centers on real-time polarity reversal—achievable in as little as 8 ms—without interrupting output or requiring shutdown. This capability is critical in dynamic analytical systems such as electrospray ionization (ESI) sources for mass spectrometry, capillary electrophoresis (CE), and electrospinning setups where bidirectional electric field control directly governs ion transmission efficiency, separation resolution, or fiber morphology. The unit operates with a fully floating, ground-referenced remote analog interface (0–10 VDC), enabling seamless integration into automated test benches and GLP-compliant instrument platforms.

Key Features

• Reversible polarity operation with user-selectable inversion times (8 ms, 25 ms, 50 ms, 100 ms, 250 ms, 500 ms, or 1 s)
• Ultra-stable output: ≤0.001% peak-to-peak ripple and 0.01% hourly drift after thermal stabilization
• Dual analog monitoring outputs (0–10 VDC) for real-time voltage and current feedback, referenced to system ground
• Integrated arc and short-circuit protection with automatic recovery and latching fault indication
• Remote polarity and operating mode status indicators for system-level diagnostics
• Compact, convection-cooled chassis (89 × 127 × 254 mm) optimized for rack-mount or embedded integration
• Multiple digital interface options: RS-232, RS-422, and USB 2.0 (optional), supporting SCPI-compatible command sets
• High-efficiency DC/DC conversion architecture with low EMI emission profile, suitable for sensitive detector environments

Sample Compatibility & Compliance

The PRC Series is engineered for direct integration with analytical instruments requiring precisely controlled, bipolar high-voltage fields—including electrospray ionization (ESI) and atmospheric pressure chemical ionization (APCI) sources for mass spectrometers, microfluidic CE chips, electrostatic chucks (E-chucks) in semiconductor metrology, and nanofiber production systems. Its analog and digital I/O interfaces comply with standard industrial control protocols, facilitating compatibility with LabVIEW, MATLAB, and custom PLC-based automation frameworks. While not certified to IEC 61010-1 as a standalone benchtop instrument, the PRC meets essential safety and EMC requirements for OEM incorporation into final medical, industrial, and research equipment. Design documentation supports traceability for ISO 13485 and FDA 21 CFR Part 11 validation workflows when deployed in regulated QC/QA environments.

Software & Data Management

Wisman provides open-command-set firmware compatible with standard serial communication protocols (ASCII-based SCPI subset), enabling full remote configuration of output setpoints, polarity state, current limits, and fault response behavior. Optional USB 2.0 and RS-422 interfaces support multi-drop configurations and deterministic timing for synchronized polarity switching in time-resolved experiments. All analog monitor outputs are calibrated and linear across the full scale, allowing direct digitization via external DAQ systems without additional signal conditioning. Audit-ready logging of voltage/current setpoints and actual outputs can be implemented using third-party software tools compliant with 21 CFR Part 11—provided the host system implements electronic signatures, audit trails, and data integrity safeguards.

Applications

• Mass spectrometry: ESI source biasing, ion lens array control, and collision cell voltage modulation
• Capillary electrophoresis and microchip electrophoresis: Electrokinetic injection and separation field reversal
• Electrospinning and electrospraying: Real-time jet stability control via pulsed or inverted electric fields
• Static charge management: Precision biasing of electrostatic chucks in wafer inspection and lithography tools
• Biophysical research: DNA translocation studies across nanopores and dielectrophoretic particle manipulation
• Materials science: In-situ charging of insulating substrates during electron microscopy sample preparation

FAQ

Can the PRC operate continuously at its maximum rated voltage and current?
Yes—the PRC is rated for continuous duty at any combination within its specified voltage (±30 kV) and power (up to 10 W) envelope, provided ambient temperature remains within 0–40°C and natural convection cooling is unobstructed.
Is polarity reversal possible while the output is enabled and under load?
Yes—this is a defining feature of the PRC series. Polarity inversion occurs dynamically without interruption to output continuity, with configurable transition times down to 8 ms.
What level of traceability and documentation is available for GMP/GLP compliance?
Wisman supplies full design verification reports, calibration certificates (NIST-traceable where applicable), and interface specification documents. Final system-level validation remains the responsibility of the integrating OEM per ISO/IEC 17025 or FDA guidance.
Does the PRC support analog programming of both voltage and current limits simultaneously?
Yes—dual 0–10 VDC inputs allow independent analog programming of output voltage and current limit thresholds, with hardware-enforced interlocks preventing overcurrent conditions.
Are custom voltage ranges or mechanical form factors available?
Yes—Wisman offers engineering collaboration for application-specific variants, including non-standard output ranges, modified connectors, enhanced shielding, and conformal coating for high-humidity or cleanroom use.