Wisman MRD160kV/1200W Modular High-Voltage Power Supply

Overview

The Wisman MRD160kV/1200W is a high-precision, modular high-voltage DC power supply engineered for demanding analytical and scientific applications requiring stable, low-noise, and tightly regulated bias voltage. Based on zero-current resonant switching topology and advanced high-voltage insulation design, the MRD series delivers exceptional long-term stability and minimal electromagnetic interference—critical for sensitive instrumentation such as mass spectrometers, electron/ion beam sources, and electrostatic lens systems. Unlike conventional linear or basic switch-mode HV supplies, the MRD architecture integrates real-time arc detection, fast-response current limiting, and dual-loop feedback control to maintain output integrity under dynamic load conditions. Its compact, conduction-cooled module form factor supports rack-mount integration and facilitates thermal management in densely packed instrument chassis.

Key Features

• Modular architecture optimized for OEM integration into analytical instruments—including mass spectrometry platforms requiring ±160 kV bias with <1200 W continuous output capability
• Ultra-low output ripple: ≤0.1% peak-to-peak at frequencies ≤20 kHz; ≤1% RMS above 20 kHz—ensuring signal fidelity in high-resolution ion optics and detector biasing
• High short-term stability: ≤0.02% drift over 8 hours after warm-up; ≤25 ppm/h post-2-hour stabilization—meeting stringent requirements for GLP-compliant instrumentation calibration protocols
• Temperature coefficient of 25 ppm/°C enables operation across 0–40 °C ambient without active thermal compensation—suitable for laboratory and industrial cleanroom environments
• Dual-control flexibility: local multi-turn potentiometer adjustment + remote analog (0–10 V) or digital (USB 2.0 / RS-422) command interface for automated voltage/current setpoint programming
• Comprehensive protection suite: programmable overvoltage lockout (OVP), overcurrent limit (OCP), arc fault detection with sub-microsecond response, and hardware-enforced safety interlock inputs compliant with IEC 61010-1
• Selectably reversible polarity (positive or negative output) supports diverse electrode configurations in ESCs, electrostatic precipitators, and ion mobility spectrometers

Sample Compatibility & Compliance

The MRD160kV/1200W is specifically engineered for use with high-sensitivity analytical instruments where electrical noise and voltage drift directly impact measurement repeatability. It meets mechanical and electrical interface standards common in mass spectrometer OEM designs—including grounding isolation, creepage/clearance distances per IPC-2221B Class B, and EMI suppression conforming to CISPR 11 Group 1 Class A. While not certified to FDA 21 CFR Part 11 out-of-the-box, its digital control architecture supports audit-trail-capable firmware extensions when integrated into validated instrument software stacks. The unit complies with RoHS 2 directives and carries CE marking for EMC and LVD directives. Its 0–10 V analog monitoring outputs (±1% accuracy at full scale) enable traceable voltage/current logging compatible with ISO/IEC 17025-accredited QA workflows.

Software & Data Management

Wisman provides a Windows-based configuration utility supporting USB 2.0 communication for parameter initialization, real-time telemetry readback, and event log export (CSV). The RS-422 interface enables daisy-chain multi-module synchronization in distributed HV systems—essential for time-aligned ramping across multiple ion lenses or electrostatic deflectors. All digital interfaces support command-line scripting (SCPI-like syntax) for integration into LabVIEW, Python (PySerial), or MATLAB automation frameworks. Firmware updates are delivered via signed binary packages with checksum verification. Optional OEM firmware customization includes custom boot sequences, password-protected configuration locks, and configurable alarm thresholds aligned with instrument-specific safety policies.

Applications

• Mass spectrometry: Ion source acceleration, quadrupole/dc bias, reflectron/TOF pusher electrodes, and detector dynode chains
• Electron and ion beam systems: Electron guns, ion implanters, focused ion beam (FIB) columns, and plasma focus devices
• Electrostatic applications: Electrostatic chucks (ESC), electrostatic precipitators, electrophoretic separation, and electrospinning nozzles
• Nuclear and particle instrumentation: Scintillation detector PMT bases, proportional counters, and neutron generator targets
• Research infrastructure: High-voltage test benches, dielectric breakdown studies, nanosecond pulse forming networks, and accelerator injector stages

FAQ

Is the MRD160kV/1200W suitable for use in FDA-regulated medical device OEM applications?
Yes—when integrated into a validated system architecture, its design supports compliance with IEC 62304 (software lifecycle) and IEC 60601-1 (safety) requirements. Wisman provides design history files (DHF) and risk analysis documentation upon NDA execution.
Can multiple MRD modules be synchronized for phased voltage ramping?
Yes—the RS-422 interface supports master-slave timing coordination with <100 ns skew between modules, enabling precise sequential biasing in multi-stage mass analyzers.
Does the unit include built-in data logging capabilities?
No internal storage is provided; however, all analog monitor outputs and digital telemetry streams support external acquisition via DAQ systems compliant with ISO/IEC 17025 traceability requirements.
What is the warranty and service support model for OEM integrators?
Standard 24-month limited warranty; extended coverage and depot repair SLAs are available under OEM partnership agreements, including firmware update support and application engineering consultation.
Are custom output voltage options available below 160 kV?
Yes—Wisman offers factory-programmed variants from 1 kV to 160 kV in 5 kV increments, with corresponding power derating per IEC 61000-3-2 harmonic current limits.