Semicircle-Instrument HVP10P10BN-DS Digital X-ray Tube High-Voltage Power Supply

Overview

The Semicircle-Instrument HVP10P10BN-DS is a compact, digitally controlled high-voltage power supply engineered specifically for grounded-cathode X-ray tubes used in analytical instrumentation—including energy-dispersive X-ray fluorescence (EDXRF), wavelength-dispersive X-ray fluorescence (WDXRF), X-ray diffraction (XRD), and portable X-ray analyzers. It operates on the principle of regulated DC high-voltage generation via high-frequency switching and precision feedback control, delivering stable, low-noise 0–10 kV DC at up to 2 mA (10 W max). Its design integrates closed-loop regulation of both tube voltage and beam current, with independent, adjustable filament excitation—enabling precise control over electron emission and X-ray photon flux. The unit employs proprietary high-voltage encapsulation and surface-mount construction to minimize parasitic capacitance, leakage paths, and thermal drift—critical for maintaining spectral resolution and quantitative repeatability in low-power X-ray sources.

Key Features

• Digital closed-loop regulation of high voltage (0–10 kV) and tube current (0–2 mA), ensuring consistent X-ray output under varying load conditions
• Independent, adjustable filament supply (0–4 V DC / 0–2 A) with programmable current limiting to protect delicate cathodes during startup and operation
• Comprehensive protection suite: overvoltage, overcurrent, overtemperature, and interlock-safety monitoring compliant with IEC 61010-1 requirements for laboratory equipment
• Integrated intelligent inrush current suppression circuitry limits startup surge to ≤1 A (typ. 0.5 A), reducing stress on internal components and extending service life
• Analog monitoring outputs (0–10 V DC) for real-time voltage and current telemetry, calibrated to ±1% accuracy and referenced to 1 kΩ load impedance
• Thermal stability of 0.01% / °C and long-term output stability of ≤0.05% over 8 hours post-warm-up support GLP-compliant measurement workflows
• Compact form factor (0.4 kg, low-profile housing) optimized for integration into OEM XRF spectrometers and benchtop analytical platforms

Sample Compatibility & Compliance

The HVP10P10BN-DS is validated for use with grounded-cathode X-ray tubes from major global manufacturers including Kevex (Amptek), Oxford Instruments, RTW, Superior Electric, Varian (now part of Agilent), and Trufocus. Its output characteristics align with ASTM E1361 (Standard Practice for Calibration of Energy-Dispersive X-ray Fluorescence Spectrometers) and ISO 21043-1 (X-ray fluorescence spectrometry — General requirements). Safety architecture meets IEC 61010-1:2010 (Edition 3) for electrical safety in laboratory environments. While not inherently 21 CFR Part 11 compliant, its analog monitoring outputs and hardware interlock interface support integration into validated systems requiring audit-trail-capable data acquisition when paired with compliant DAQ hardware and software.

Software & Data Management

The HVP10P10BN-DS supports both local front-panel control and remote digital/analog interface modes. Analog control inputs accept 0–10 V signals for voltage, current, and filament setpoints; status and fault flags are available via TTL-level logic outputs. For automated systems, optional RS-232 or CAN bus modules (sold separately) enable bidirectional communication, parameter logging, and firmware-upgradable configurations. All operational parameters—including actual HV, beam current, filament voltage, temperature sensor readings, and fault codes—are accessible via standardized SCPI-like command sets. Data timestamps and system state snapshots can be synchronized with host spectrometer software for full traceability in QA/QC and regulatory reporting contexts.

Applications

• Low-power EDXRF analyzers for elemental analysis in mining, environmental soil testing, and recycling sorting
• OEM integration into handheld and benchtop XRF instruments requiring stable, compact HV excitation
• Research-grade X-ray sources for micro-XRF mapping and thin-film thickness calibration
• Calibration laboratories performing periodic verification of X-ray tube performance per ISO/IEC 17025 requirements
• Teaching labs utilizing X-ray physics experiments where reproducible, safe, and observable HV control is essential

FAQ

Is the HVP10P10BN-DS compatible with floating-cathode X-ray tubes?

No—it is designed exclusively for grounded-cathode (cathode-at-ground) tube configurations. Floating or anode-grounded tubes require different grounding topology and are not supported.
Does it support external computer control out of the box?

Standard units feature analog control and monitoring only. RS-232 or CAN interfaces are available as optional add-on modules and require separate ordering.
What safety certifications does this unit carry?

It complies with IEC 61010-1:2010 for measurement, control, and laboratory equipment. CE marking is applied per EU Directive 2014/35/EU (Low Voltage Directive) and 2014/30/EU (EMC Directive).
Can the filament current limit be adjusted during operation?

Yes—the filament current limit is fully adjustable via potentiometer or external analog signal, enabling dynamic optimization for different tube aging states or operating modes.
Is firmware update capability built-in?

Firmware updates require optional digital interface hardware and are performed using vendor-provided utilities under controlled lab conditions—not field-upgradable via analog interface alone.