Wiseman PRE Series ±30 kV / 10 W Reversible Polarity High-Voltage DC Power Supply

Overview

The Wiseman PRE Series is a precision-engineered, reversible-polarity high-voltage DC power supply designed for demanding scientific instrumentation and industrial applications requiring rapid, in-service polarity reversal without interruption of power. Unlike conventional HV supplies that require shutdown and manual reconfiguration to switch polarity, the PRE Series employs patented solid-state switching architecture to transition between +30 kV and –30 kV within milliseconds—while maintaining continuous operation and stable regulation. This capability is critical in dynamic electrostatic processes such as electrophoretic mobility shift assays, time-resolved ion acceleration in mass spectrometry interfaces, and bidirectional electrokinetic manipulation in microfluidic platforms. The unit operates on standard AC mains (220 V ±10%, with 110 V option), delivering up to 10 W of regulated output power with exceptional line and load regulation (<0.01%), ultra-low ripple (≤0.001% p-p), and thermal stability (≤25 ppm/°C). Its compact 2U rack-mount form factor (482.5 × 482.5 × 44 mm) integrates seamlessly into analytical instrument chassis—including OEM integration into mass spectrometer ion sources, electrophoresis systems, and electrostatic chucks.

Key Features

• True In-Service Polarity Reversal: Switches between positive and negative high-voltage output instantaneously (<10 ms) without power cycling—enabling real-time experimental control in dual-polarity electrostatic applications.
• Multi-Layer Protection Architecture: Integrated safeguards include overvoltage lockout (OVP), overcurrent limit (OCP), short-circuit foldback, arc detection with automatic recovery, thermal shutdown, and hardware-enforced safety interlock circuitry compliant with IEC 61010-1.
• Dual Control Modes: Local adjustment via front-panel multi-turn potentiometers; remote analog control via 0–10 V signals for both voltage and current setpoints—fully compatible with LabVIEW, Python-based automation, and PLC-driven test benches.
• High-Fidelity Monitoring: 4-digit LED display shows real-time output voltage and current at ±1% full-scale accuracy; DB25 interface provides isolated analog monitoring outputs and TTL-compatible status flags (e.g., “HV ON”, “Fault Active”).
• Stability-Optimized Design: Achieves ≤0.01% output drift per hour after 60-minute thermal stabilization; low-noise regulation supports sensitive charge-sensitive measurements in electrochemical and particle-beam applications.
• OEM-Ready Integration: Standardized mechanical footprint, DB25 I/O pinout, and configurable interlock logic facilitate drop-in replacement or embedded deployment in analytical instruments—particularly LC-MS, MALDI-TOF, and capillary electrophoresis systems.

Sample Compatibility & Compliance

The PRE Series is engineered for compatibility with a broad range of high-impedance, low-current laboratory loads—including electrospray ionization (ESI) emitters, electrostatic precipitators, corona discharge electrodes, and dielectric barrier configurations. It meets electromagnetic compatibility (EMC) requirements per EN 61326-1 (industrial environment) and safety standards per EN 61010-1:2010. While not certified to FDA 21 CFR Part 11 out-of-the-box, its deterministic analog control architecture, non-volatile fault logging (via external DAQ), and hardware interlock support audit-ready system integration under GLP and GMP frameworks. All units undergo 100% burn-in testing and full functional verification at rated load before shipment.

Software & Data Management

The PRE Series operates as a deterministic analog subsystem—no embedded firmware or network stack is required, eliminating cybersecurity vulnerabilities and ensuring long-term reproducibility across instrument lifecycles. Remote control and monitoring are implemented via industry-standard 0–10 V analog signals and discrete TTL-level status lines routed through the DB25 connector. Users may log voltage/current traces using any third-party data acquisition system (e.g., National Instruments USB-6009, Keysight 34972A) with millisecond-level timestamping. For automated workflows, Python scripts (using PyVISA or DAQmx) or LabVIEW VIs can drive setpoint changes and read back analog monitor outputs—enabling synchronized polarity reversal with detector gating or stage motion in custom-built electrophoresis rigs or ion mobility spectrometers.

Applications

• Electrospray ionization (ESI) and atmospheric pressure chemical ionization (APCI) source biasing in mass spectrometry
• Capillary and microchip electrophoresis with programmable field reversal for DNA fragment analysis
• Electrostatic chuck (E-chuck) biasing in semiconductor wafer handling and plasma etch tools
• Electrospinning and electrostatic flocking process development
• High-voltage capacitor charging and insulation resistance testing (IR/PI)
• Ion implantation beam steering and focusing electrode biasing
• Static field generation for fundamental plasma physics and charged particle trajectory studies
• Accelerator tube pre-biasing and electron gun cathode extraction in laser and X-ray source development

FAQ

Can the PRE Series be used in a Class 100 cleanroom environment?
Yes—its sealed metal enclosure, convection-cooled design (no internal fans), and absence of outgassing plastics meet ISO 14644-1 Class 5 particulate requirements when installed with appropriate feedthroughs.

Is polarity reversal synchronized with an external trigger signal?
No—the reversal is manually or analog-commanded only; however, users may integrate external TTL triggers via custom logic circuits interfacing with the DB25 control lines.

What is the maximum cable length supported for remote analog control?
For optimal noise immunity, keep 0–10 V analog control cables under 3 m; shielded twisted-pair (STP) cabling with grounded shields is strongly recommended.

Does the unit support IEEE-488 (GPIB) or USB communication?
No—it is intentionally analog-only to ensure deterministic timing, long-term calibration stability, and regulatory simplicity; digital interfaces would compromise its core design goals of robustness and traceability.

Can multiple PRE units be stacked or paralleled for higher current?
No—each unit is independently regulated and not designed for parallel operation; for higher power needs, consult Wiseman’s custom engineering group for multi-channel synchronized solutions.