20 Description of operation of the power sources and technical dates
Auxiliary Switching Mode Power Supply (SMPS)
- Flyback topology running @ 30kHz switching frequency*
- Buck topology running @ 30kHz switching frequency*
- Directly derived from 560V DC link
- Post-regulated primary side auxiliary supplies
- Post-regulated secondary side auxiliary supplies
- Regulated secondary side auxiliary supplies
- Synchronization circuit for noise free TIG welding arc
* Note: due to resonant topology of primary power inverter,
switching frequency is not constant: it varies in [27 ... 33]kHz
range, depending on actual output power.
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