Abstract
A random PWM generator using an offset voltage comprises: a random variable generation unit for generating a random variable; an offset voltage setting unit for setting an offset voltage by using the random variable generated by the random variable generation unit; a pole voltage command output unit for outputting a pole voltage command by adding offset voltage set in the offset voltage setting unit and a voltage command of an input signal; and a PWM generation unit for generating an inverter driving pulse by using the pole voltage command output by the pole voltage command output unit. According to the present invention, the random PWM generator using an offset and a method thereof can be simply realized without an additional circuit or a complex calculation.
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