https://community.nxp.com/t5/MCX-Microcontrollers/OPAMP-PGA-used-in-motor-control/m-p/1983421#M1851 <P>Hi,</P> <P>As you know that 3 phase current is required to construct 3 phase coordinator for FOC control,&nbsp; so at least, 3 OP AMPs are required.</P> <P>The MCXN has on-chip OP AMPs with internal resistor network, but the current power stage board has on-board OP AMPs, so there is not solution to use internal OP AMPs to amplify the 3 phase current which are sample by connecting shunt resistor on the bottom branches.</P> <P>But using internal OP AMPs for FOC control are under way for MCXA family including redesigning the power stage board and MCXN processor board.</P> <P>We have OP AMP firmware in SDK package.</P> <P>You can download SDK package from the website:</P> <P><A href="https://mcuxpresso.nxp.com/en" target="_blank">https://mcuxpresso.nxp.com/en</A></P> <P>&nbsp;</P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="xiangjun_rong_0-1730171023528.png" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/307369iC0AFBEDF14AC7C69/image-size/medium?v=v2&amp;px=400" role="button" title="xiangjun_rong_0-1730171023528.png" alt="xiangjun_rong_0-1730171023528.png" /></span></P> <P>Hope it can help you</P> <P>BR</P> <P>XiangJun Rong</P> Tue, 29 Oct 2024 03:05:59 GMT xiangjun_rong 2024-10-29T03:05:59Z https://community.nxp.com/t5/MCX-Microcontrollers/OPAMP-PGA-used-in-motor-control/m-p/1982496#M1833 <P>Is there any example how to use the OPAMP/ (Programmable operation amplifier) within motor control aplication?</P> Sun, 27 Oct 2024 16:28:13 GMT https://community.nxp.com/t5/MCX-Microcontrollers/OPAMP-PGA-used-in-motor-control/m-p/1982496#M1833 erikraynolds 2024-10-27T16:28:13Z https://community.nxp.com/t5/MCX-Microcontrollers/OPAMP-PGA-used-in-motor-control/m-p/1983421#M1851 <P>Hi,</P> <P>As you know that 3 phase current is required to construct 3 phase coordinator for FOC control,&nbsp; so at least, 3 OP AMPs are required.</P> <P>The MCXN has on-chip OP AMPs with internal resistor network, but the current power stage board has on-board OP AMPs, so there is not solution to use internal OP AMPs to amplify the 3 phase current which are sample by connecting shunt resistor on the bottom branches.</P> <P>But using internal OP AMPs for FOC control are under way for MCXA family including redesigning the power stage board and MCXN processor board.</P> <P>We have OP AMP firmware in SDK package.</P> <P>You can download SDK package from the website:</P> <P><A href="https://mcuxpresso.nxp.com/en" target="_blank">https://mcuxpresso.nxp.com/en</A></P> <P>&nbsp;</P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="xiangjun_rong_0-1730171023528.png" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/307369iC0AFBEDF14AC7C69/image-size/medium?v=v2&amp;px=400" role="button" title="xiangjun_rong_0-1730171023528.png" alt="xiangjun_rong_0-1730171023528.png" /></span></P> <P>Hope it can help you</P> <P>BR</P> <P>XiangJun Rong</P> Tue, 29 Oct 2024 03:05:59 GMT https://community.nxp.com/t5/MCX-Microcontrollers/OPAMP-PGA-used-in-motor-control/m-p/1983421#M1851 xiangjun_rong 2024-10-29T03:05:59Z