Introduction

The FF series Floating Filament Power Supplies provide isolated, high stability DC output for filament applications requiring floating voltages up to ±30kV. They deliver a regulated 7.5 V DC output with current ranges from 0 to 5 A and power from 7.5 W to 37.5 W. These power supplies are designed for use in ion guns, electron guns, X-ray filaments, traveling-wave tubes, klystrons, magnetrons, and various medical, chemical, laboratory, and industrial applications.

Key Features

• High stability with temperature coefficient less than 200 ppm/°C
• Floating isolation voltages available: 5kV, 10kV, 15kV, 20kV, and 30kV
• Low ripple output voltage <200 mVp-p
• Current and voltage monitoring outputs
• Remote adjustment capability for voltage and current programming (0 to +10 V DC)
• Protection against arcs and short circuits
• Options for fault alarm, synchronization, and communication interfaces (RS232, RS485)

Specifications

Model Selection and Output Ratings

The FF series offers multiple models differentiated by maximum output current and isolation voltage rating. Output power ranges from 7.5 W to 37.5 W, with current options from 0-1 A up to 0-5 A. Isolation voltages are selectable from ±5 kV up to ±30 kV depending on the model. Ripple voltage is consistently maintained below 200 mVp-p across models.

Control and Monitoring Interfaces

• Voltage and Current Programming: 0 to +10 V DC input signals control output from 0 to 100% with ±3% accuracy.
• Voltage and Current Monitoring: Outputs provide 0 to +10 V DC signals proportional to output voltage and current for remote monitoring.
• Communication Options: Simulation pin (M1), RS485 (M2), and RS232 (M3) interfaces available for digital control and monitoring.
• Additional Options: Fault alarm (FAS), synchronization (SYN), and shielded/unshielded cable options for output wiring.

Protection Features

The power supplies include protection against intermittent arcing and continuous short circuits to ground on all outputs, ensuring safe operation in demanding environments.

Connection and Pin Configuration

The device uses an 8-pin input connector with defined pins for +24 V input, voltage and current programming, monitoring, power ground, and optional fault alarm or synchronization signals. Output connections include floating ground and filament output terminals. Detailed pin assignments are provided for simulation and digital communication modes.

Applications

Typical applications include powering filaments in ion and electron guns, X-ray tubes, traveling-wave tubes, klystrons, magnetrons, and other high-voltage vacuum tube devices used in medical, chemical, laboratory, and industrial fields.

Customization and Support

OEM customization is available to tailor the power supply to specific application requirements. Contact information and company details are provided for sales and technical support.