Wiseman PRF Series Bipolar High-Voltage Power Supply (±30 kV, 10 W)
| Brand | Wiseman |
|---|---|
| Model | PRF |
| Output Voltage Range | ±5 kV to ±30 kV (selectable) |
| Output Current Range | 0–300 µA |
| Power Rating | 5–10 W |
| Ripple | ≤70 mV<sub>P-P</sub> (≤0.0003% of full scale) |
| Polarity Reversal Time | 8–1000 ms (configurable) |
| Stability | ≤0.01%/hr (after 1-hr warm-up) |
| Temperature Coefficient | ≤25 ppm/°C |
| Line Regulation | ±0.001% (±10% input variation) |
| Load Regulation | 0.001% (0–100% load) |
| Input | 24 VDC ±10% |
| Interface Options | USB 2.0, RS-232, RS-422, Analog 0–10 V |
| Cooling | Natural convection |
| Dimensions (H×W×D) | 73.0 × 125.0 × 340.0 mm |
| Weight | 3.75 kg |
| Compliance | Designed for OEM integration in regulated analytical instrumentation environments |
| Typical Applications | Mass spectrometry, electrospray ionization (ESI), capillary electrophoresis, electrospinning, dielectric barrier discharge research, E-chuck systems |
Overview
The Wiseman PRF Series is a precision-engineered, bipolar high-voltage DC power supply specifically developed for demanding OEM applications in analytical and scientific instrumentation—most notably as a dedicated ion source power supply for mass spectrometers. Based on solid-state high-voltage encapsulation and surface-mount manufacturing technology, the PRF delivers stable, low-noise, and highly reproducible output across a wide voltage range (±5 kV to ±30 kV) with programmable current limiting up to 300 µA. Its defining capability is rapid, controlled polarity reversal under active load—a critical requirement for dynamic ion optics, pulsed electrospray, and bidirectional electrophoretic separation methods. Unlike conventional HV supplies requiring full shutdown for polarity change, the PRF enables seamless, sub-10-ms polarity transitions while maintaining continuous regulation, eliminating downtime and enabling synchronized waveform control in time-resolved analytical workflows.
Key Features
- Bipolar DC output: Continuously adjustable from −30 kV to +30 kV, with independent voltage and current programming via analog (0–10 V) or digital interfaces
- Ultra-low output ripple: ≤70 mVP-P (equivalent to ≤0.0003% of full-scale output), ensuring minimal signal interference in sensitive detection systems
- Programmable polarity reversal: Configurable transition times from 8 ms to 1 s; executed safely without interrupting regulation or triggering protective shutdowns
- High long-term stability: ≤0.01% drift per hour after 60-minute thermal stabilization; temperature coefficient ≤25 ppm/°C
- Comprehensive protection suite: Integrated arc detection, current limiting, short-circuit foldback, and over-temperature monitoring
- OEM-optimized form factor: Compact 73 × 125 × 340 mm chassis with D-sub 25-pin I/O connector—designed for rack-mount or embedded integration
- Flexible control architecture: Supports local front-panel operation (where applicable), analog remote programming, and optional USB 2.0, RS-232, or RS-422 digital communication
- Remote sensing and monitoring: Dedicated test points provide buffered 0–10 V analog outputs proportional to actual voltage and current, enabling closed-loop system diagnostics
Sample Compatibility & Compliance
The PRF series is engineered for compatibility with high-impedance, low-current analytical loads typical in mass spectrometry (e.g., electrospray, atmospheric pressure chemical ionization), capillary electrophoresis, microfluidic electrokinetic systems, and electrostatic actuation platforms. Its output characteristics meet the stringent electrical noise and stability requirements specified in ASTM E260 and ISO/IEC 17025 for calibration-grade instrumentation support. While not certified as a standalone medical device, the PRF complies with IEC 61010-1 (Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use) for Class I, Pollution Degree 2 environments. Its analog interface design supports traceability in GLP/GMP workflows when integrated into validated instrument platforms—particularly where 21 CFR Part 11-compliant audit trails are maintained at the host system level.
Software & Data Management
Digital interface options (USB 2.0, RS-232, RS-422) enable full command-and-control via SCPI-compatible ASCII protocol, supporting voltage/current setpoint adjustment, polarity toggling, status interrogation, and fault logging. Wiseman provides Windows-based configuration utilities for rapid parameter setup and waveform sequencing—compatible with LabVIEW™, MATLAB®, and Python (PySerial) environments. All analog and digital interfaces support real-time readback of measured voltage and current (via 0–10 V scaling), facilitating synchronization with data acquisition systems for time-correlated analysis. Remote polarity state and operational mode indicators are available as TTL-level signals, allowing external logic controllers to monitor and coordinate multi-supply systems. No proprietary runtime or driver installation is required for standard serial or USB CDC communication.
Applications
- Mass Spectrometry: Electrospray ionization (ESI), matrix-assisted laser desorption/ionization (MALDI) source biasing, ion lens array control, and reflectron acceleration/deceleration stages
- Capillary Electrophoresis & Microchip Electrophoresis: Electrokinetic injection, separation voltage biasing, and detector electrode biasing with polarity-switching capability
- Electrospinning & Nanofiber Fabrication: Precise control of Taylor cone formation and jet stability through dynamically modulated electric field gradients
- Electrostatic Research: Dielectric breakdown studies, corona discharge characterization, and electrohydrodynamic (EHD) flow control
- Biomedical Instrumentation: DNA translocation studies, nanopore sensing biasing, and electrophoretic cell manipulation systems
- Industrial Process Control: Electrostatic chucks (E-chucks) for semiconductor wafer handling, precision particle charging, and non-contact material handling
FAQ
Is the PRF series suitable for use in FDA-regulated mass spectrometry platforms?
Yes—when integrated into a validated instrument architecture, the PRF meets the electrical performance and safety prerequisites outlined in IEC 61010-1 and supports traceable operation under 21 CFR Part 11 when paired with compliant host software.
Can polarity reversal be triggered synchronously with an external TTL pulse?
Yes—the D-sub connector includes dedicated polarity control lines compatible with TTL/CMOS logic levels, enabling hardware-triggered reversal with configurable delay and edge sensitivity.
What is the maximum safe operating altitude for the PRF unit?
The PRF is rated for operation up to 2000 meters above sea level per IEC 60664-1; derating is recommended beyond this elevation due to reduced dielectric strength of air.
Does the PRF support analog voltage programming with galvanic isolation?
No—standard analog inputs are referenced to the power supply’s common ground. For isolated control, Wiseman offers optional isolated interface modules (sold separately) compliant with IEC 61800-5-2.
Are custom voltage ranges or mechanical configurations available?
Yes—Wiseman provides engineering support for application-specific modifications including non-standard output ranges, modified cooling solutions, custom I/O pinouts, and conformal coating for high-humidity environments.
