- 专利标题： Digitally controlled grounded capacitance multiplier
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申请号： US17158808申请日： 2021-01-26
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公开(公告)号： US11309854B1公开(公告)日： 2022-04-19
- 发明人: Abdulrahman Alshuhail , Hussain Alzaher , Alaa El-Din Hussein
- 申请人： Saudi Arabian Oil Company , King Fahd University of Petroleum and Minerals
- 申请人地址： SA Dhahran; SA Dhahran
- 专利权人： Saudi Arabian Oil Company,King Fahd University of Petroleum and Minerals
- 当前专利权人： Saudi Arabian Oil Company,King Fahd University of Petroleum and Minerals
- 当前专利权人地址： SA Dhahran; SA Dhahran
- 代理机构： Leason Ellis LLP
- 主分类号： H03F3/45
- IPC分类号： H03F3/45
摘要：
A digitally controlled grounded capacitance multiplier circuit system and method is disclosed. The capacitance multiplier (CM) circuit comprises an op-amp, a digitally controlled current amplifier and two resistors in addition to a reference capacitor. The CM circuit is designed using complementary metal-oxide-semiconductor (CMOS) technology. The value of the equivalent capacitance can be adjusted through digitally programming the gain of the current amplifier. The CM circuit provides a significant multiplication factor while using two active devices.
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