Description
The Tonghui TH1778 series is a powerful DC bias current source that delivers currents from 0-20 A and can be extended up to 120 A via master/slave connection. With a graphical touch user interface, AC/DC super position test technology and a frequency bandwidth of up to 2 MHz, it fulfils the highest demands in research, development and quality control of magnetic components. Thanks to SCPI remote control, multilingual GUI and intelligent profile management, the TH1778 integrates seamlessly into automated test systems and production lines.Features
- Constant current output 0 - 20 A per device, master/slave extension up to 120 A
- Fine-step current stepping: < 1 A → 5 mA, < 5 A → 25 mA, up to 120 A → 100 mA
- AC/DC superposition test theory for high precision and high frequencies up to 2 MHz
- Two operating modes: single current output and step-by-step scanning
- Intuitive graphic GUI with touchscreen, physical buttons and footswitch
- Real-time operation mode of all parameters without waiting time
- Advanced file management: storage and recall of 99 user profiles
- Two SCPI command modes and five footswitch modes for flexible control
- Dual progress indicators and tool utilities for monitoring
- Choice of German/English in user interface
Applications
- AC/DC superposition testing of inductors and reactors
- Magnetisation and saturation behaviour of ferritic and iron-based cores
- Characterisation of magnetic materials in R&D and laboratories
- Automated test lines via SCPI interface and master/slave network
- Quality assurance and long-term tests under variable current profiles











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