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SWITCHED DC/DC BOOST POWER STAGE WITH LINEAR CONTROL-TO-OUTPUT CONVERSION RATIO, BASED ON A RAMP-MODULATED PWM GENERATOR
SWITCHED DC/DC BOOST POWER STAGE WITH LINEAR CONTROL-TO-OUTPUT CONVERSION RATIO, BASED ON A RAMP-MODULATED PWM GENERATOR
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机译:基于RAMP调制PWM发生器的具有线性控制到输出转换比的开关DC / DC升压功率级
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摘要
It is proposed a ramp-modulated pulse width modulation generator (100) comprising: • - an output stage (110) generating a ramp-modulated voltage (Vo); • - a control input (130) providing a variable multi-slope ramp voltage (Vc); • - a reference input (120) providing a constant voltage (Vb); • - a comparator (140) connected to the control input and the reference input, the comparator comparing the voltage Vc of the control input with the voltage Vb of the reference input to determine a duty-cycle ratio of the ramp-modulated voltage Vo generated as a result of the comparison.
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机译:提出了一种斜坡调制的脉宽调制发生器(100),该发生器包括:-输出级(110),产生一个斜坡调制的电压(V o Sub>); •-提供可变多斜率斜坡电压(V c Sub>)的控制输入(130); •-提供恒定电压(V b Sub>)的参考输入(120); •-连接到控制输入和参考输入的比较器(140),该比较器将控制输入的电压V c Sub>与参考的电压V b Sub>进行比较输入以确定由比较产生的斜坡调制电压V o Sub>的占空比。
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