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公开(公告)号：US08575908B2
公开(公告)日：2013-11-05
申请号：US12539035
申请日：2009-08-11
IPC分类号： G05F1/10
CPC分类号： H02M3/156 , H02M2001/0025
摘要： A voltage regulation circuit includes a power stage for generating a regulated output voltage responsive to an input voltage and at least one PWM signal. A voltage divider circuit is connected to the output of the power stage and generates a feedback voltage. First circuitry generates the at least one PWM signal responsive to a voltage error signal, a filtered output voltage signal and a ramp voltage signal. The filtered output voltage is used for substantially removing loop gain change caused by the voltage divider circuit. A voltage compensation circuit generates the voltage error signal responsive to a feedback voltage and a reference voltage.
摘要翻译： 电压调节电路包括用于响应于输入电压和至少一个PWM信号产生调节的输出电压的功率级。 分压器电路连接到功率级的输出端并产生反馈电压。 第一电路响应于电压误差信号，滤波后的输出电压信号和斜坡电压信号，产生至少一个PWM信号。 滤波后的输出电压用于基本上消除由分压电路引起的环路增益变化。 电压补偿电路根据反馈电压和参考电压产生电压误差信号。
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公开(公告)号：US20100072964A1
公开(公告)日：2010-03-25
申请号：US12539035
申请日：2009-08-11
IPC分类号： G05F1/10
CPC分类号： H02M3/156 , H02M2001/0025
摘要： A voltage regulation circuit includes a power stage for generating a regulated output voltage responsive to an input voltage and at least one PWM signal. A voltage divider circuit is connected to the output of the power stage and generates a feedback voltage. First circuitry generates the at least one PWM signal responsive to a voltage error signal, a filtered output voltage signal and a ramp voltage signal. The filtered output voltage is used for substantially removing loop gain change caused by the voltage divider circuit. A voltage compensation circuit generates the voltage error signal responsive to a feedback voltage and a reference voltage.
摘要翻译： 电压调节电路包括用于响应于输入电压和至少一个PWM信号产生调节的输出电压的功率级。 分压器电路连接到功率级的输出端并产生反馈电压。 第一电路响应于电压误差信号，滤波后的输出电压信号和斜坡电压信号，产生至少一个PWM信号。 滤波后的输出电压用于基本上消除由分压电路引起的环路增益变化。 电压补偿电路根据反馈电压和参考电压产生电压误差信号。
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