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Prior work has addressed some challenges in fine-grained IVR design for digital S
本文提出了一种适用于多种稳压器的UniCaP框架,解决了相位锁定和自适应时钟问题。
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UniCaP框架相位锁定自适应时钟稳压器延迟锁定环
▸创新点1:UniCaP框架的创新性在于其广泛适用于多种稳压器类型(包括LDOs、SC和降压转换器),通过统一的控制架构实现了跨类型的高效电压调节,解决了传统方法中针对不同类型稳压器需定制设计的局限性。
▸创新点2:可靠的相位和频率锁定技术通过结合时钟和Vdd调节,首次解决了实际应用中跨域通信所需的相位锁定问题,显著降低了Vdd下垂的防护带需求,提升了系统稳定性。
▸创新点3:全数字延迟锁定环(DLL)技术实现了自主CCM/DCM转换和零电压开关(ZVS),在各种负载条件下优化了转换效率,减少了传统模拟方法中的延迟和能效损失。
▸创新点4:集成ARM Cortex-M0处理器作为负载和特性分析工具,不仅支持宽负载范围,还实现了Vdd边际的实时监测和优化,实测显示在0.6-1V范围内平均恢复了82%的Vdd边际。
Abstract
sed on Iload sensing relying on an analog
zero-crossing detector [2] have been presented. In addition to
precluding all-digital design, the technique does not account
for bridge driver delays for zero voltage switching (ZVS),
degrading converter efficiency. Ring-oscillator-based methods
have also been proposed [3], [4] in place of ADCs to quan-
tize V
dd error. However, these techniques do not provide
adaptive clocking [5]–[11] and therefore require significant
guardbands for Vdd droop. More recen