CodeWarrior Development ToolsのトピックHow to enable brake chopper pwm signal ? https://community.nxp.com/t5/CodeWarrior-Development-Tools/How-to-enable-brake-chopper-pwm-signal/m-p/358068#M1769 <HTML><HEAD></HEAD><BODY><P>I am trying to enable brake chopper pwm signal in GCT and it Works as long as I don't connect motor to the drive. BC pwm signal doesn't switch when three output pwm for motor are switching.</P><P>Anyone can help me please?</P><P>thanks</P></BODY></HTML> Wed, 04 Mar 2015 16:21:22 GMT simon123 2015-03-04T16:21:22Z How to enable brake chopper pwm signal ? https://community.nxp.com/t5/CodeWarrior-Development-Tools/How-to-enable-brake-chopper-pwm-signal/m-p/358068#M1769 <HTML><HEAD></HEAD><BODY><P>I am trying to enable brake chopper pwm signal in GCT and it Works as long as I don't connect motor to the drive. BC pwm signal doesn't switch when three output pwm for motor are switching.</P><P>Anyone can help me please?</P><P>thanks</P></BODY></HTML> Wed, 04 Mar 2015 16:21:22 GMT https://community.nxp.com/t5/CodeWarrior-Development-Tools/How-to-enable-brake-chopper-pwm-signal/m-p/358068#M1769 simon123 2015-03-04T16:21:22Z Re: How to enable brake chopper pwm signal ? https://community.nxp.com/t5/CodeWarrior-Development-Tools/How-to-enable-brake-chopper-pwm-signal/m-p/358069#M1770 <HTML><HEAD></HEAD><BODY><P>Hi</P><P></P><P>The BC function generates the DC-bus break control signal based on the actual DC-bus voltage. </P><P>So the u_dc_bus_ON and u_dc_bus_OFF thresholds have to be properly set and also actual DC-bus voltage have to be measured and passed to BC function following BC update. Check if all above is done properly.</P><P></P><P>The usage of the BC eTPU function is demonstrated&nbsp; in the application “BLDC Motor with Speed Closed Loop and DC-Bus Break Controller”. For a detailed description of the demo refer to AN2954 (<A href="http://cache.freescale.com/files/32bit/doc/app_note/AN2954.pdf"><SPAN style="font-size: 10.0pt; font-family: 'TimesLTStd-Roman','serif';"></SPAN></A><A href="http://cache.freescale.com/files/32bit/doc/app_note/AN2954.pdf" target="test_blank">http://cache.freescale.com/files/32bit/doc/app_note/AN2954.pdf</A>). </P><P></P><P>Regards,</P><P>Petr</P></BODY></HTML> Wed, 18 Mar 2015 09:34:09 GMT https://community.nxp.com/t5/CodeWarrior-Development-Tools/How-to-enable-brake-chopper-pwm-signal/m-p/358069#M1770 PetrS 2015-03-18T09:34:09Z