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Author:

万培元 (万培元.) | 沈之淇 (沈之淇.) | 陈志杰 (陈志杰.) | 金伯雍 (金伯雍.) | 包宇成 (包宇成.) | 李东宇 (李东宇.) | 王川恺 (王川恺.)

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incoPat zhihuiya

Abstract:

本发明提出了一种用于离散型Sigma‑Delta调制器的防过载无源加法器,包括非交叠时钟发生源,开关电容电路,电压比较器以及或门,利用电荷重分配技术得到无源加法器的输出电压,与基准电压通过电压比较器和或门判断极性,并使用或门输出的极性信号控制调制器中积分器的采样电容值,调整积分器的系数,确保调制器在输入信号幅度较大的情况下仍工作在稳定状态,该发明通过简单的电路改进并保留了无源加法器低功耗的优点,有效避免了因调制器过载引起的输出信号信噪比急剧下降的问题。

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Patent Info :

Type: 发明申请

Patent No.: CN202111309657.2

Filing Date: 2021-11-06

Publication Date: 2022-02-25

Pub. No.: CN114095031A

Applicants: 北京工业大学

Legal Status: 实质审查

Cited Count:

WoS CC Cited Count: 12

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 6

Affiliated Colleges:

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