Three-phase square wave signal oscillator circuit

  
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As shown in Figure 16-4, a CD4017 is connected as senary counter, and the input clock is 300Hz.VD1 ~ VD9, R1 ~ R3 form the three three-input OR gates, which can respectively get two 50Hz three-phase wave signal with 120 degrees phase difference. A, B, C can obtain three -phase signal, and it is shown in Figure 16-5..
Three-phase square wave signal oscillator circuit - schematic




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