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DC-AC Converters (inverters)

DC-AC Converters (inverters). The function is to convert a DC fixed voltage into a symmetric AC output of fixed or variable frequency and amplitude Applications: variable speed AC drives Uninterruptable AC power supplies Single phase and 3 phase applications.

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DC-AC Converters (inverters)

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  1. DC-AC Converters (inverters) • The function is to convert a DC fixed voltage into a symmetric AC output of fixed or variable frequency and amplitude • Applications: • variable speed AC drives • Uninterruptable AC power supplies • Single phase and 3 phase applications.

  2. Principle of operation (half-bridge inverter) Output voltage is v0=vA-vO

  3. Single phase bridge inverter

  4. 3phase DC-AC converters (inverters)

  5. The state of switches 6 1 2 3 4 5 | 6 1 2 3 4 etc.

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