HB22

DCC signal booster

Features

• Input voltage: track+1V – 35 V DC
• Output voltage: 14–25 V DCC
• Maximum output current: 3 A
• Adjustable output voltage
• Stepdown for stabilization (energy-effective)
• No big cooler needed
• Analog current limitation to 3 A
• DCC skew rate limitation
• RailCom support
• Possibility to connect expansion module for integration with railroad-control system
• Current sensing, voltage sensing, temperature sensing
• Short-circuit detection, (configurable) automatic restore after short-circuit

Available expansion modules

• MTBbus expansion module

Principles

Main MCU does all safety-critical operations:

• Detection of short-circuit
• Railcom pause insertion