专利汇可以提供Variable gain electronic current transformer专利检索,专利查询,专利分析的服务。并且A variable gain electronic current transformer is disclosed which includes means for detecting the current flow into a power consuming system. An operational amplifier amplifies the detected current and the output of the operational amplifier is converted into a magnetic flux field which is directed onto one surface of a Hall effect element. A variable current source supplies current to a second orthogonal surface of the Hall effect element to thereby generate an output voltage which is directly proportional to the product of the output of the operational amplifier and the variable current source. This output voltage from the Hall effect element is coupled back to the input of the operational amplifier. A second Hall effect element is positioned in the flux field generated at the output of the operational amplifier and in addition has a second variable current source coupled to one surface thereof so that the output of the second Hall effect element is a voltage which is proportional to the product of the output of the operational amplifier and the second variable current source. Accordingly, the output voltage of the second Hall effect element is directly proportional to the product of the detected current and the output of the second current source and is inversely proportional to the output of the first variable current source to thereby provide a current transformer having a large dynamic range depending upon the variance of the outputs of the first and second variable current sources.,下面是Variable gain electronic current transformer专利的具体信息内容。
标题 | 发布/更新时间 | 阅读量 |
---|---|---|
一种变电站母线保护二次回路投运带负荷测试方法 | 2020-05-11 | 511 |
一种基于NB-IOT通讯技术的电气火灾监控智能用电开关系统 | 2020-05-11 | 668 |
一种便携式差动回路校验仪及校验方法 | 2020-05-13 | 599 |
一种基于双端平衡因子的XLPE电缆绝缘寿命估算方法 | 2020-05-08 | 586 |
一种磁平衡的串联变压器纵联零序差动保护方法及装置 | 2020-05-14 | 812 |
基于时钟同步的电能计量装置在线检测系统及方法 | 2020-05-14 | 417 |
一种高铁牵引供电调度仿真培训系统 | 2020-05-14 | 722 |
一种纯光纤电子式电流互感器故障辨识方法、系统及介质 | 2020-05-11 | 978 |
变压器差动保护装置 | 2020-05-08 | 566 |
一种适用于小机组的发电机保护成套装置 | 2020-05-11 | 795 |
高效检索全球专利专利汇是专利免费检索,专利查询,专利分析-国家发明专利查询检索分析平台,是提供专利分析,专利查询,专利检索等数据服务功能的知识产权数据服务商。
我们的产品包含105个国家的1.26亿组数据,免费查、免费专利分析。
专利汇分析报告产品可以对行业情报数据进行梳理分析,涉及维度包括行业专利基本状况分析、地域分析、技术分析、发明人分析、申请人分析、专利权人分析、失效分析、核心专利分析、法律分析、研发重点分析、企业专利处境分析、技术处境分析、专利寿命分析、企业定位分析、引证分析等超过60个分析角度,系统通过AI智能系统对图表进行解读,只需1分钟,一键生成行业专利分析报告。