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Patent Abstracts 8,258,880 September 4, 2012 Ring Oscillator for Providing Constant Oscillation Frequency Inventors: Chin Y eong Koh (Singapore, SG) and Kar Ming Y ong (Singapore, SG) Assignee: In fineon Technologies AG (Neubiberg, DE) Filed: February 26, 2010. Appl. No.: 12/713,326
通过自适应电压供应技术实现环形振荡器在温度变化下的恒定频率输出
未明确提及
环形振荡器自适应电压温度补偿恒定频率随机数生成器
▸自适应电压供应技术：通过动态调整环形振荡器的供电电压来补偿温度变化，确保振荡频率稳定。该方法创新性地解决了温度对频率的影响，适用于宽温度范围应用。
▸温度补偿环形振荡器设计：采用温度敏感的电压调节机制，使环形振荡器在不同温度下保持恒定的延迟特性。这种电路创新显著提高了频率稳定性，适用于精密计时系统。
▸恒定频率输出：通过自适应电压供应和温度补偿技术的结合，实现了在宽温度范围内输出几乎恒定的振荡频率。这一系统创新为高精度时钟源提供了可靠解决方案。
▸随机数生成器设计：利用环形振荡器的亚稳态特性产生真随机数，通过控制亚稳态持续时间实现随机性。这一方法创新为安全加密应用提供了高效的硬件随机数生成方案。
Abstract
oh (Singapore, SG) and Kar Ming Y ong
(Singapore, SG)
Assignee: In fineon Technologies AG (Neubiberg, DE)
Filed: February 26, 2010.
Appl. No.: 12/713,326
Abstract—Some embodiments disclosed herein relate to techniques for pro-
viding a relatively constant oscillation frequency. In some instances, these tech-
niques can make use of a ring oscillator that is powered by an adaptive voltage
supply. The adaptive voltage supply provides a temperature-dependent supply
voltage to respective delay element