DC 12V–24V to 90V–250V High-Voltage Boost Converter | 3845-Based Power Supply for Nixie Tubes & Glow Displays

DC 12V–24V to 90V–250V High-Voltage Boost Converter

This compact DC-DC high-voltage booster module uses the UC3845 PWM controller to generate stable, adjustable output voltages from 90 V to 250 V DC. Designed for driving Nixie tubes, magic-eye indicators, or vacuum-fluorescent displays (VFDs), it delivers efficient high-voltage conversion with minimal heat output.

Features

• Input Voltage: 10–24 V DC
• Adjustable Output Voltage: 90–250 V DC
• Based on UC3845 PWM controller for stable operation
• Drives up to 10 or more glow/Nixie tubes
• Low heat, no external heat sink required
• Shutdown control via SHUT pin (MCU compatible)
• Compact PCB design: 50 × 30 × 19 mm

Applications

• Nixie tube and VFD clock projects
• Magic-eye indicator drivers
• Custom high-voltage displays
• Electronics hobby and educational kits

Specifications

• Input: 10–24 V DC
• Output: 90–250 V adjustable
• Controller: UC3845 PWM
• Efficiency: up to 85% (load-dependent)
• Dimensions: 50 mm × 30 mm × 19 mm

Note: Always operate the module within the specified voltage range. The output is not isolated—exercise caution when handling high-voltage circuits.

Perfect for Nixie clock builders, retro display enthusiasts, and embedded engineers seeking a compact, reliable high-voltage power supply.