Transcription of Power Electronics Lecture No. 14 Dr. Mohammed Tawfeeq ...
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Power Electronics Lecture No. 14 Dr. Mohammed Tawfeeq ...
Power Electronics Lecture No. 14 Dr. Mohammed Tawfeeq Lazim Al-Zuhairi 1 14. DC to ac converters Single-phase inverters: Single-phase half-bridge inverter This type of inverter is very simple in construction. It does not need output transformer like parallel inverter . It sometimes called center-tapped source inverter . The basic configuration of this inverter is shown in Fig Single-phase inverter half-bridge circuit. The top and bottom switch has to be complementary i. e. If the top switch is closed (ON), the bottom must be off, and vice-versa. The output voltage waveform is a square wave as shown in Square wave output Voltage waveform Power Electronics Lecture No. 14 Dr. Mohammed Tawfeeq Lazim Al-Zuhairi 2 In practice, a dead time between ON and OFF (td) for Q1 & Q2 is required to avoid short circuit or shoot-through faults.
DC – to – AC Converters Single-phase inverters: 14.1 Single-phase half-bridge inverter This type of inverter is very simple in construction. It does not need output transformer like parallel inverter. It sometimes called center-tapped source inverter. The basic configuration of this inverter is shown in Fig 14.1.
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