Research on DC Reference Voltage Circuit Pursuing Low Noise and Low Fluctuation Levels

追求低噪声、低波动水平的直流基准电压电路的研究

• 批准号: 08650500
• 负责人: SONODA Toshikatsu
• 金额: $ 0.83万
• 依托单位: KYUSHU INSTITUTE OF TECHNOLOGY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1996
• 资助国家: 日本
• 起止时间: 1996 至 1998
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-08650500/
• 关键词: reference voltage; zener diode; lithium battery; noise voltage; fluctuation; stability; temperature dependence; measurement of nano-voltage; ツェナ-ダイオード; 雑音

The minimum sensing resolution of various sensors converting physical quantities into electrical signals is dependent on the noise of the electrical circuits and the magnetic core, both key components of the sensor.Resolution enhancement, therefore, required not only a reduction in the noise of the amplifier, but also reduction in noise and fluctuation in the reference voltage appropriate for the physical quantities being sensed.Head investigator researchs focused on the development of a reference voltage with general applicability to sensor circuits. An extremely low-noise lithium battery was first connected in parallel, through a resistor, to the Zener diode to reduce fluctuation and noise in the reference voltage. Temperature control was implemented for both Zener diode and lithium battery to control temperature dependence.The resulting reference voltage showed a fluctuation of 1.5 mu V (p-p) at 1 Hz and below, and noise of 0.9 mu V (rms) from 1 Hz to 2 MHz. The temperature dependency was only 0.45 ppm/ﾟC, making it an extremely high-performance power supply.

将物理量转换为电信号的各种传感器的最小传感分辨率取决于电路和磁芯的噪声，两者都是传感器的关键部件。因此，提高分辨率不仅需要降低放大器的噪声，还需要降低与所感测物理量相适应的参考电压的噪声和波动。首席研究员的研究重点是开发一种普遍适用于传感器电路的参考电压。一个极低噪声的锂电池首先通过一个电阻并联到齐纳二极管上，以减少参考电压的波动和噪声。对齐纳二极管和锂电池都进行了温度控制，以控制温度依赖性。所得参考电压在1hz及以下时波动为1.5 μ V (p-p)，在1hz至2mhz范围内噪声为0.9 μ V （rms）。温度依赖性仅为0.45 ppm/ C，使其成为高性能电源。

项目成果

園田敏勝: "ツェナ-ダイオード形基準電圧用10^<-5>℃分解能恒温槽の構成" 電気学会論文誌C. Vol・117-C. 179-185 (1997)

Toshikatsu Sonoda：“用于齐纳二极管型参考电压的 10^<-5>℃ 分辨率恒温室的配置” 日本电气工程师协会会刊 C. Vol. 117-185 (1997)

園田敏勝: "ツェナーダイオード形基準電圧用10^<-5>℃分解能恒温槽の構成" 電学論文誌C. 117-C. 179-185 (1997)

Toshikatsu Sonoda：“齐纳二极管型参考电压的 10^<-5>℃ 分辨率恒温室的配置”《电气工程学报》C. 117-185 (1997)。

Toshikatsu Sonoda: "Construction of a Constant Temperature Bath with a Resolution 10^<-5>ﾟC for Zener Diode Type Reference Voltage" T.IEE Japan. VOl.117-C, No.2. 179-185 (1997)

Toshikatsu Sonoda：“齐纳二极管型参考电压的分辨率为 10^<-5>ﾟC 的恒温槽的构造”T.IEE Japan，VOl.117-C，No.2 (1997)。

Akira Yoshihiro: "A New Method Compensating Imbalance Voltage in Hall Effect Multiplier" T.IEE Japan. VOl.118-C, No.5. 794-795 (1998)

Akira Yoshihiro：“霍尔效应乘法器中补偿不平衡电压的新方法”T.IEE 日本。

東 秀樹: "真空熱電対を用いた実効値計測装置の周波数特性" 電気学会、計測研究会資料. IM-97-88. 13-17 (1997)

Hideki Azuma：“使用真空热电偶的有效值测量设备的频率特性”，日本电气工程师学会，测量研究组资料 IM-97-88 (1997)。