Wiseman PF3.5kV/3.5W Instrument-Dedicated High-Voltage DC-DC Converter Module

Overview

The Wiseman PF3.5kV/3.5W is a precision-engineered, instrument-dedicated high-voltage DC-DC converter module designed specifically for demanding analytical and detection applications requiring ultra-stable, low-noise bias voltage. Built upon a floating-output architecture with reinforced galvanic isolation, the PF series delivers regulated output voltages up to ±3.5 kV while enabling the output stage to float at potentials of ±2.5 kV, ±10 kV, ±20 kV, or ±30 kV—depending on selected isolation rating (5–30 kV). Its core design leverages zero-current resonant switching topology and proprietary high-voltage insulation techniques to achieve exceptional stability (<0.1%/hr after thermal stabilization), minimal temperature drift (10 ppm/°C), and ultra-low output ripple (≤200 mV_p-p). These characteristics make it especially suitable for electron multiplication stages in mass spectrometry—including electron multipliers (EM), microchannel plate (MCP) detectors, and channel electron multipliers—where signal-to-noise ratio, gain linearity, and long-term baseline integrity are critical.

Key Features

• Floating-output architecture with configurable isolation ratings: 5 kV, 10 kV, 15 kV, 20 kV, 25 kV, or 30 kV
• Ultra-low ripple and noise: ≤200 mV_p-p across full load and temperature range
• High regulation performance: line and load regulation ≤0.01% (typical)
• Remote analog control interface: 0–10 V input for precise output voltage programming (5 kΩ input impedance)
• Dual-monitoring capability: isolated analog outputs for real-time voltage and current feedback
• Full six-side electromagnetic shielding using mu-metal and conductive enclosure for EMI/RFI suppression
• Comprehensive protection suite: reverse polarity input protection, overcurrent limiting, short-circuit latching, and arc fault detection
• Compact OEM-optimized form factor: 205 mm × 100 mm × 43 mm; weight: 1.5 kg
• Industrial-grade environmental tolerance: operating range 10–50°C, storage range −35–+85°C, non-condensing humidity up to 80% RH

Sample Compatibility & Compliance

The PF3.5kV/3.5W is engineered for seamless integration into vacuum-compatible and radiation-sensitive instrumentation platforms, including time-of-flight (TOF) and quadrupole mass spectrometers, scanning electron microscopes (SEM), transmission electron microscopes (TEM), traveling-wave tube (TWT) amplifiers, and ion source biasing subsystems. Its fully isolated signal and control interfaces eliminate ground-loop interference—critical when interfacing with high-impedance detector anodes or floating cathode assemblies. While not certified to specific regulatory standards as a standalone unit, the module’s design principles align with key requirements of ISO/IEC 17025 (for calibration laboratories), ASTM E2913 (for EM detector biasing), and USP (for analytical instrument qualification). When embedded within validated instrument architectures, its analog monitoring outputs support audit-trail-capable data logging compliant with FDA 21 CFR Part 11 and GLP/GMP documentation workflows.

Software & Data Management

The PF3.5kV/3.5W operates as a hardware-level bias source without embedded firmware or digital communication protocols. All control and monitoring functions are implemented via analog signals—ensuring deterministic latency, immunity to software-induced timing jitter, and compatibility with legacy and custom-built acquisition systems. Voltage programming is achieved through a 0–10 V analog input, while isolated voltage and current monitor outputs provide real-time feedback for closed-loop stabilization or external DAQ integration. For OEM system integrators, Wiseman provides detailed electrical interface schematics, thermal derating curves, and mechanical mounting templates—enabling traceable configuration management and repeatable validation per IEC 62304 (for medical devices) or IEEE 1012 (for system verification). Third-party SCADA or LabVIEW-based control layers can readily incorporate the module using standard analog I/O modules with 16-bit resolution or better.

Applications

• High-gain bias supply for microchannel plate (MCP) detectors in TOF-MS and imaging mass spectrometry
• Anode voltage source for electron multipliers and discrete dynode electron multipliers
• Beam acceleration and focusing bias in compact electron guns and ion optics stacks
• Stabilized high-voltage reference for charge-sensitive preamplifiers in radiation detection systems
• Low-drift bias for photomultiplier tubes (PMTs) in fluorescence lifetime or single-photon counting setups
• OEM integration into portable X-ray fluorescence (XRF) analyzers and handheld mass spectrometers
• Field-emission source conditioning and gate biasing in nanoscale electron beam lithography tools

FAQ

What is the maximum continuous output power of the PF3.5kV/3.5W module?

The module is rated for 3.5 W continuous output power at full 3.5 kV and 1000 µA load. Derating applies above 40°C ambient per published thermal curves.
Can the output be referenced to a non-ground potential?

Yes—the output is fully floating and may be biased to ±2.5 kV, ±10 kV, ±20 kV, or ±30 kV relative to system ground, depending on the configured isolation rating.
Does the module support remote sensing or feedback compensation?

No—it uses internal high-precision resistive dividers and feedback loops; however, isolated analog monitor outputs enable external closed-loop correction if required.
Is the PF series compliant with CE, UL, or RoHS?

As a component-level module intended for integration into end-user instruments, it carries RoHS 2015/863 compliance documentation; final system-level certifications (CE/UL) must be obtained by the integrating OEM.
What is the typical warm-up time to achieve specified stability?

Stability specifications assume ≥60 minutes of thermal stabilization; drift is characterized at ≤0.1%/hr after this period under constant ambient conditions.