Overview

This document provides detailed technical specifications, application examples, interface descriptions, and dimensional data for a series of high voltage power supply models ranging from 1kV to 70kV with power outputs up to 4kW. These power supplies are designed for precision electronic testing and industrial applications requiring stable high voltage outputs with arc and short circuit protection.

1. Product Models and Selection

The product line includes multiple models identified by codes such as DF1*4, DF2*4, up to DF70*4, each corresponding to specific maximum output voltages (from 1kV to 70kV) and power ratings (up to 4kW). Models are available with either positive or negative output polarity. A selection table and example (e.g., DF 70 4*) guide users in choosing the appropriate model based on voltage, current, and power requirements.

2. Typical Applications

• Capacitor charging
• Electronic component aging and testing
• High voltage testing
• Electron and ion beam focusing and inpouring
• Electrostatics applications including deflection, electrospinning, electrophoresis, and microchip electrophoresis
• Accelerator and DNA sequencing
• Material testing and laboratory/industrial applications
• Insulation and lithography technology
• Piezoelectricity

3. Key Specifications

• Input Voltage: Standard 180-264Vac single phase; optional three-phase (3PH220V)
• Output Voltage Range: 1kV to 70kV, selectable per model
• Output Power: Up to 4kW per chassis
• Stability: 0.02% per hour after 1 hour warm-up
• Ripple: 0.1% peak-to-peak plus 1Vrms
• Voltage and Current Programming: Local via internal potentiometers and remote via 0-10Vdc analog signals
• Load and Line Regulation: Voltage load regulation 0.05% + 500mV; current load regulation 0.05% ±100µA; line regulation 0.05% ±10%
• Operating Temperature: 0 to +40°C; Storage: -40 to +85°C
• Humidity: 10% to 90% non-condensing
• Cooling: Forced air through side panels and rear exhaust
• Dimensions: 5.25" (3U) height x 19" width x 24" depth (132mm x 482.5mm x 610mm)
• Weight: Approximately 40 kg

4. Interface and Control Features

Digital Interfaces

• RS-232 interface for digital communication and control
• Ethernet digital interface with differential signaling (TX+, TX-, RX+, RX-)

Analog Interface Connections

• Multiple pins for power supply common, reset/HV inhibit, external interlock, and ground
• Voltage and current programming inputs and outputs (0-10Vdc signals)
• Remote power on/off control and status indicators
• Fault and status signals including over power, over current, over temperature, over voltage, arc detection, system fault, and AC fault—all implemented as open collector outputs with active low signaling
• Auxiliary power outputs: +24Vdc, +15Vdc, +5Vdc, and -15Vdc with current limits

5. Protection and Safety Features

• Arc and short circuit protection with adjustable arc quench and re-ramp times
• Adjustable overload and overpower high voltage shutdown
• External interlock and remote HV off/on controls for enhanced safety

6. Mechanical and Electrical Connections

• High voltage output connectors clearly marked
• Line input and grounding points specified
• Detachable shielded cables (10 ft / 3.05 m) for high voltage output
• Detailed front, top, and back view dimensions with air intake and exhaust locations for proper installation and cooling

7. Customization and Options

• OEM customization available for specific application needs
• Optional constant power control mode
• Customized slow start feature
• Unshielded cable option
• Higher stability temperature coefficient option (50 ppm/°C) available on special order

Summary

This document comprehensively details a family of high voltage power supplies designed for precision and reliability in demanding scientific and industrial environments. The units offer flexible programming interfaces, robust protection mechanisms, and a range of customization options to suit diverse applications. The clear specification of electrical, mechanical, and interface parameters facilitates integration into complex systems requiring stable high voltage sources.