Wiseman MC Series Miniature High-Voltage Power Supply, 2 kV / 2 W

Overview

The Wiseman MC Series is a compact, PCB-mountable high-voltage (HV) DC/DC power supply module engineered for precision biasing applications in analytical and scientific instrumentation. Based on zero-current resonant converter topology and proprietary high-voltage insulation design, the MC delivers tightly regulated output voltages up to ±2 kV with exceptional stability and ultra-low electromagnetic interference. Its core architecture prioritizes low-noise operation—critical for signal integrity in photomultiplier tube (PMT) gain control, mass spectrometer ion optics, and electron beam column biasing—where microampere-level current fluctuations can directly impact detection sensitivity and mass resolution. Unlike rack-mounted or chassis-integrated HV supplies, the MC’s miniature footprint (46 × 24 × 12 mm) and lightweight construction (25 g) enable direct integration into space-constrained detector assemblies, portable analyzers, and OEM instrument platforms without thermal or mechanical compromise.

Key Features

• Output voltage range: 0–2000 V DC, selectable positive or negative polarity via configuration
• Maximum continuous output power: 2 W at rated voltage and current
• Output ripple and noise: ≤5 mV peak-to-peak (measured under full-load conditions; typical value)
• Short-term stability: ±0.001% per hour (after 30-minute warm-up, constant ambient)
• Temperature coefficient: 10 ppm/°C — enabling stable operation across 0–50 °C ambient range
• Six-sided mu-metal and conductive polymer shielding minimizes radiated and conducted EMI
• Robust protection suite: reverse input polarity, overvoltage on control line, sustained overload, hard short-circuit, and arc detection with automatic recovery
• Analog voltage control interface (0–5 V) with 100 kΩ input impedance, compatible with standard DAC outputs or industrial PLCs
• External potentiometer interface (20 kΩ ±2.5 kΩ) for manual adjustment in lab or calibration settings
• Rapid output rise time: 50 ms (0–99% of setpoint), supporting dynamic voltage sequencing in pulsed systems

Sample Compatibility & Compliance

The MC series is specifically validated for use with low-power, high-impedance HV loads common in laboratory and analytical systems—including photomultiplier tubes (PMTs), ionization chambers, proportional counters, Geiger-Müller tubes, electrostatic lenses, and quadrupole or time-of-flight mass spectrometer ion guides. Its low leakage current (10¹² Ω) ensure minimal signal path disturbance. While not certified as a standalone safety device, the module is designed to comply with the isolation and creepage requirements of IEC 61010-1 (Edition 3) when integrated into properly engineered host instruments. It supports GLP/GMP-aligned system validation through traceable analog control and deterministic protection behavior—key for regulated environments such as clinical mass spectrometry or pharmaceutical QC labs where FDA 21 CFR Part 11 data integrity applies to control parameters.

Software & Data Management

As a hardware-only analog module, the MC does not include embedded firmware or digital communication interfaces (e.g., RS-232, USB, or Ethernet). However, its 0–5 V analog control input enables seamless integration with third-party data acquisition and automation platforms—including LabVIEW, Python-based PyVISA control scripts, or Beckhoff/TwinCAT PLC systems—via standard DAC modules. For OEM customers, Wiseman provides detailed application notes on closed-loop voltage calibration using external metrology-grade voltmeters and programmable load resistors. All units undergo 100% functional testing at temperature extremes (0 °C and 50 °C), with individual test reports available upon request to support IQ/OQ documentation. Traceability includes lot-numbered calibration records aligned with ISO/IEC 17025-accredited reference standards.

Applications

• Biasing photomultiplier tubes in scintillation detectors, fluorescence spectrometers, and LIDAR receivers
• Electrostatic focusing and deflection in compact mass spectrometers (e.g., benchtop Q-TOF, ion mobility systems)
• High-voltage supply for electron multipliers and channeltrons in surface analysis tools
• Stable bias for radiation detection electronics in nuclear physics education and environmental monitoring equipment
• Precision voltage source for electrophoretic separation systems and microfluidic electrode arrays
• OEM integration into portable X-ray fluorescence (XRF) analyzers and handheld radiation identifiers
• Reference HV source in metrology labs for calibrating electrometers and picoammeters

FAQ

Is the MC module suitable for use in FDA-regulated medical devices?
Yes—when integrated into a Class II or Class III medical instrument with appropriate system-level risk management (per ISO 14971) and electrical safety validation (IEC 62304), the MC meets the HV subsystem requirements for diagnostic analyzers, including mass spec-based IVD platforms.
Can multiple MC modules be synchronized for phased voltage ramping?
No native synchronization feature exists; however, simultaneous triggering is achievable via shared analog control voltage from a single precision DAC, provided inter-module wiring is impedance-matched and shielded.
What is the expected lifetime under continuous operation at 2 kV/1 mA?
Based on accelerated life testing at 50 °C ambient and 80% rated load, median time to failure exceeds 50,000 hours (MTBF > 5.7 years), consistent with MIL-HDBK-217F predictions for solid-state HV converters.
Does Wiseman provide custom output voltage ranges beyond ±2 kV?
Yes—OEM variants are available from ±60 V to ±5 kV, with tailored stability, ripple, and package form factors; lead time and NRE apply.
Is conformal coating available for high-humidity or corrosive environments?
Standard units are uncoated; optional acrylic or silicone conformal coating (IPC-CC-830B Class 3) can be specified at order entry for enhanced moisture and chemical resistance.