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首页> 外文期刊>Chinese Journal of Electronics >An Adaptive Voltage Scaling Buck Converter with Preset Circuit
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An Adaptive Voltage Scaling Buck Converter with Preset Circuit

机译:具有预设电路的自适应电压缩放降压转换器

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摘要

An Adaptive voltage scaling (AVS) buck converter with Preset circuit (P-AVS), which can adaptively scale the output voltage fast, is presented. The voltage scaling loop in the proposed Pulse width modulation (PWM) buck with P-AVS is divided into coarse scaling loop and fine scaling loop, which can regulate the reference voltage adaptively according to load status. The coarse scaling loop can set quickly a coarse value of reference voltage according to the operation frequency of the load by a preset block, and the fine scaling loop is designed to scale voltage finely. The proposed P-AVS buck converter, with 3.3V input and 2MHz switching frequency, is fabricated in a 0.13 mu m standard CMOS process. The output voltage and the frequency of the load are designed from 0.7V to 1.5V and 30MHz to 120MHz respectively. Compared with a typical AVS buck, the proposed P-AVS converter can save 17 mu s scaling up from 0.7V to 1.1V.
机译:提出了一种具有预设电路(P-AVS)的自适应电压缩放(AVS)降压转换器,该转换器可以快速自适应地缩放输出电压。提出的带有P-AVS的脉宽调制(PWM)buck中的电压缩放环路分为粗缩放环路和精细缩放环路,它们可以根据负载状态自适应地调节参考电压。粗比例缩放环路可以通过预设块根据负载的工作频率快速设置参考电压的粗略值,并且微比例缩放环路设计用于精细缩放电压。拟议的P-AVS降压转换器具有3.3V输入和2MHz的开关频率,采用0.13μm标准CMOS工艺制造。负载的输出电压和频率分别设计为0.7V至1.5V和30MHz至120MHz。与典型的AVS降压相比,建议的P-AVS转换器可节省从0.7V到1.1V的比例缩放(17 s)。

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