Wiseman MU Series High-Voltage DC-DC Power Module (6 kV, 30 W)

Overview

The Wiseman MU Series is a family of compact, high-voltage DC-DC power modules engineered for precision instrumentation demanding ultra-low noise, exceptional long-term stability, and robust electromagnetic compatibility. Designed specifically for integration into mass spectrometers, electron microscopes, and other high-sensitivity analytical platforms, the MU module operates on the principle of zero-current resonant (ZCR) conversion topology—enabling high voltage generation with minimized switching transients, low internal losses, and inherent immunity to load-induced perturbations. Its fully encapsulated, six-sided shielded construction ensures compliance with stringent EMI requirements typical of laboratory-grade analytical systems operating in shared electromagnetic environments. Unlike general-purpose HV supplies, the MU series is optimized for continuous biasing applications where microampere-level current regulation and sub-ppm voltage drift are critical to signal fidelity—particularly in time-of-flight (TOF) mass analyzers, electrostatic lens arrays, and detector bias networks.

Key Features

• Output voltage programmability from 50 V to 6 kV DC in discrete standard steps (0.05–6 kV), supporting both positive and negative polarity configurations
• Ultra-low output ripple and noise: ≤0.001% peak-to-peak (measured at full load, 20 MHz bandwidth), achieved via multi-stage passive filtering and ZCR topology
• High short-term stability: ±0.001% per hour under constant thermal conditions; long-term drift < ±0.01% over 1,000 hours
• Temperature coefficient of ≤10 ppm/°C across full operating range, validated per IEC 62304 Annex C for embedded medical device subsystems
• Comprehensive protection suite: automatic arc detection with <1 µs response, foldback current limiting, and latch-off short-circuit recovery
• PCB-mount form factor (74.6 × 38.1 × 28.5 mm) with through-hole and surface-mount compatible footprints for automated assembly
• Input flexibility: 12 V DC input for 6 W variants; 24 V DC for 10 W, 20 W, and 30 W models—compatible with standard laboratory DC bus architectures
• OEM-customizable options include analog 0–10 V remote setpoint interface, TTL-compatible enable/disable control, and extended temperature grade variants (G/T)

Sample Compatibility & Compliance

The MU module is routinely integrated into Class I and Class II analytical instruments certified to IEC 61010-1 (Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use) and IEC 61326-1 (EMC for Laboratory Equipment). Its isolation rating (reinforced insulation, 6 kV_AC for 1 minute) satisfies creepage and clearance requirements for Category II installations. When embedded within FDA-regulated mass spectrometry platforms, the MU’s traceable calibration history, deterministic fault response, and absence of non-volatile configuration storage support 21 CFR Part 11 compliance when paired with instrument-level audit trail and electronic signature controls. It meets RoHS 3 and REACH SVHC criteria and is manufactured under ISO 9001:2015–certified processes.

Software & Data Management

As a standalone analog-controlled module, the MU does not incorporate embedded firmware or digital communication interfaces. However, it is fully compatible with third-party instrument control systems utilizing analog voltage programming (0–10 V) or potentiometric adjustment. For GLP/GMP-aligned deployments, Wiseman provides factory calibration certificates (NIST-traceable), including measured output line/load regulation, ripple spectra (10 Hz–20 MHz), and thermal drift profiles across specified ambient ranges. All units undergo 100% burn-in testing at elevated temperature and full-load stress prior to shipment—data archived for 10 years per ISO/IEC 17025 clause 7.8.

Applications

• Mass spectrometer ion source and detector biasing (e.g., MCP, Faraday cup, EMCCD)
• Electron microscope electrostatic lenses and beam blanking circuits
• Pulsed laser diode and Q-switch driver bias stages
• ESD simulator charge circuits and contact discharge networks
• Dielectric withstand and partial discharge test fixtures
• Capacitor charging for pulsed power systems (e.g., Pockels cells, flash lamps)
• Ion mobility spectrometer gate electrode control
• Custom OEM instrumentation requiring regulated HV bias in space-constrained enclosures

FAQ

Is the MU module suitable for use in FDA-cleared medical devices?
Yes—when integrated as a subsystem within a validated instrument architecture, the MU meets essential safety and EMC requirements per IEC 60601-1 collateral standards when used in non-patient-connected applications (e.g., benchtop mass spec analyzers). Full regulatory responsibility rests with the final device manufacturer.
Can output polarity be reversed without hardware modification?
No—polarity is fixed at time of order (positive or negative output). Reversal requires physical reconfiguration of internal feedback network and output terminal layout; Wiseman offers both variants as standard SKUs.
What is the maximum recommended cable length between MU output and load?
For optimal noise performance and stability, keep HV output leads ≤30 cm and use double-shielded coaxial cable (e.g., RG-174/U with grounded outer braid). Longer runs require in-line filtering and guarded routing per MIL-STD-461G CS114.
Does Wiseman provide calibration services after initial installation?
Yes—annual recalibration is available through Wiseman’s ISO/IEC 17025-accredited lab, including full parametric verification and updated certificate with measurement uncertainty budgets.
Are custom voltage outputs outside the standard 0.05–6 kV range available?
Yes—OEM requests for non-standard outputs (e.g., 7.5 kV, bipolar ±3 kV) are evaluated case-by-case based on insulation system validation and thermal derating analysis.