Universal pulse width modulation integrated circuit for power electric current transormer
A technology of pulse width modulation and integrated circuit, applied in the direction of converting irreversible AC power input into DC power output, etc., to achieve the effects of fast speed, simple design, improved stability and reliability
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[0033]The universal pulse width modulation integrated circuit for power electronic converters proposed by the present invention has a schematic block diagram as shown in Figure 1, including: three modulation ratio registers for storing three-phase reference pulse width modulation ratio setting values; three A phase shift angle register is used to store the three-phase reference PWM phase shift angle setting value; a fundamental frequency register is used to store the reference PWM fundamental frequency setting value; a switching frequency register is used to store the pulse width Modulation sampling switching frequency setting value; a level number register, used to store the pulse width modulation level number setting value; a cascade number register, used to store the pulse width modulation cascading number setting value; a zero sequence injection flag bit register , used to store the pulse width modulation zero-sequence injection flag; a data interface circuit, used for exte...
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