Double-negative feedback loop four-quadrant V/I source measurement unit board card based on CPCI bus
The invention provides a double-negative feedback loop four-quadrant volt-ampere source measurement unit board card based on a CPCI bus. The board card comprises a CPCI bus module, an FPGA module, anADC module, a DAC module, a relay control module, a power supply module and a double negative feedbac...
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| creator | ZHAO YUNQING LU LIN SHAN GUANGXING BIAN YUAN HAN BINGBING ZHANG XINGCHUN ZHANG YANG |
| description | The invention provides a double-negative feedback loop four-quadrant volt-ampere source measurement unit board card based on a CPCI bus. The board card comprises a CPCI bus module, an FPGA module, anADC module, a DAC module, a relay control module, a power supply module and a double negative feedback loop module. The CPCI bus module is a board card system bus to connect an upper computer with theFPGA module and is used for the upper computer to perform control and data exchange. The FPGA module comprises a CPCI bus bridge chip IP core, an ADC module control IP core and a DAC module control IP core. The relay control module is used for switching the functions of a voltage increasing and measuring circuit and a current increasing and pressure measuring circuit of the double-negative feedback loop, and the double-negative feedback loop module comprises a voltage source and current measuring negative feedback loop and a current source and voltage measuring negative feedback loop. The board card provided by the te |
| format | Patent |
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The board card comprises a CPCI bus module, an FPGA module, anADC module, a DAC module, a relay control module, a power supply module and a double negative feedback loop module. The CPCI bus module is a board card system bus to connect an upper computer with theFPGA module and is used for the upper computer to perform control and data exchange. The FPGA module comprises a CPCI bus bridge chip IP core, an ADC module control IP core and a DAC module control IP core. The relay control module is used for switching the functions of a voltage increasing and measuring circuit and a current increasing and pressure measuring circuit of the double-negative feedback loop, and the double-negative feedback loop module comprises a voltage source and current measuring negative feedback loop and a current source and voltage measuring negative feedback loop. 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The board card comprises a CPCI bus module, an FPGA module, anADC module, a DAC module, a relay control module, a power supply module and a double negative feedback loop module. The CPCI bus module is a board card system bus to connect an upper computer with theFPGA module and is used for the upper computer to perform control and data exchange. The FPGA module comprises a CPCI bus bridge chip IP core, an ADC module control IP core and a DAC module control IP core. The relay control module is used for switching the functions of a voltage increasing and measuring circuit and a current increasing and pressure measuring circuit of the double-negative feedback loop, and the double-negative feedback loop module comprises a voltage source and current measuring negative feedback loop and a current source and voltage measuring negative feedback loop. The board card provided by the te</description><subject>MEASURING</subject><subject>MEASURING ELECTRIC VARIABLES</subject><subject>MEASURING MAGNETIC VARIABLES</subject><subject>PHYSICS</subject><subject>TESTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2020</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNij0KwkAUBtNYiHqH5wGCSRSsZVVMIxZiK293v0gw2Rf3x_MbwQPYzMAw08zuJekOucODY_sGNYDVbJ7UiQzUSPL5K7H17CLdVjWFsRhQDw7Jo8eYk2sjaWFvyXyhOcCSOFIXVZNOYZ5NGu4CFj_PsuXxcFWnHIPcEQY2cIh3dS7LcltVxabYrf95Pl60PX4</recordid><startdate>20200929</startdate><enddate>20200929</enddate><creator>ZHAO YUNQING</creator><creator>LU LIN</creator><creator>SHAN GUANGXING</creator><creator>BIAN YUAN</creator><creator>HAN BINGBING</creator><creator>ZHANG XINGCHUN</creator><creator>ZHANG YANG</creator><scope>EVB</scope></search><sort><creationdate>20200929</creationdate><title>Double-negative feedback loop four-quadrant V/I source measurement unit board card based on CPCI bus</title><author>ZHAO YUNQING ; LU LIN ; SHAN GUANGXING ; BIAN YUAN ; HAN BINGBING ; ZHANG XINGCHUN ; ZHANG YANG</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN111722040A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>chi ; eng</language><creationdate>2020</creationdate><topic>MEASURING</topic><topic>MEASURING ELECTRIC VARIABLES</topic><topic>MEASURING MAGNETIC VARIABLES</topic><topic>PHYSICS</topic><topic>TESTING</topic><toplevel>online_resources</toplevel><creatorcontrib>ZHAO YUNQING</creatorcontrib><creatorcontrib>LU LIN</creatorcontrib><creatorcontrib>SHAN GUANGXING</creatorcontrib><creatorcontrib>BIAN YUAN</creatorcontrib><creatorcontrib>HAN BINGBING</creatorcontrib><creatorcontrib>ZHANG XINGCHUN</creatorcontrib><creatorcontrib>ZHANG YANG</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>ZHAO YUNQING</au><au>LU LIN</au><au>SHAN GUANGXING</au><au>BIAN YUAN</au><au>HAN BINGBING</au><au>ZHANG XINGCHUN</au><au>ZHANG YANG</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Double-negative feedback loop four-quadrant V/I source measurement unit board card based on CPCI bus</title><date>2020-09-29</date><risdate>2020</risdate><abstract>The invention provides a double-negative feedback loop four-quadrant volt-ampere source measurement unit board card based on a CPCI bus. The board card comprises a CPCI bus module, an FPGA module, anADC module, a DAC module, a relay control module, a power supply module and a double negative feedback loop module. The CPCI bus module is a board card system bus to connect an upper computer with theFPGA module and is used for the upper computer to perform control and data exchange. The FPGA module comprises a CPCI bus bridge chip IP core, an ADC module control IP core and a DAC module control IP core. The relay control module is used for switching the functions of a voltage increasing and measuring circuit and a current increasing and pressure measuring circuit of the double-negative feedback loop, and the double-negative feedback loop module comprises a voltage source and current measuring negative feedback loop and a current source and voltage measuring negative feedback loop. The board card provided by the te</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS TESTING |
| title | Double-negative feedback loop four-quadrant V/I source measurement unit board card based on CPCI bus |
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