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System and method for controlling output ripple of DC-DC converters with leading edge modulation control using current injection
System and method for controlling output ripple of DC-DC converters with leading edge modulation control using current injection
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机译:使用电流注入通过前沿调制控制来控制DC-DC转换器输出纹波的系统和方法
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摘要
In a preferred embodiment, a voltage converter comprises a voltage converter circuit, an output adjuster and a controller. The controller provides a control signal at a duty ratio determined dynamically by a set of input signals. The dynamic output adjuster determines the set of input signals by adjusting the ac component of an output voltage based on a gain Q. The dynamic output adjuster alleviates dependence on the value of Rc under leading edge modulation in either analog or digital converter systems. In addition to delivering the desired left half plane zero effects, dynamic output adjustment reduces the value of the output ripple. As a result, modern control methods such as input-output linearization can be used to design both boost and buck-boost PWM converters if only left half plane zero effects are present.
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机译:在优选实施例中,电压转换器包括电压转换器电路,输出调节器和控制器。控制器以由一组输入信号动态确定的占空比提供控制信号。动态输出调节器通过基于增益Q调节输出电压的ac分量来确定输入信号的集合。在任一情况下,动态输出调节器都会减轻对前沿调制下R c Sub>值的依赖性。模拟或数字转换器系统。除了提供所需的左半平面零效应外,动态输出调整还可以减小输出纹波的值。结果,如果仅存在左半平面零效应,则可以使用诸如输入输出线性化之类的现代控制方法来设计升压和降压-升压PWM转换器。
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