²úÆ·Ö÷ÒªÌØÐÔ: D/AÊä³öͨµÀÊý£º¶ÀÁ¢12·£» D/A·Ö±æÂÊ£º8λ£» D/Aת»»½¨Á¢Ê±¼ä£º¡Ü1¦ÌS£»×ÜÏß·½Ê½£ºISA£» ¡ú ÐÔÄܼ°¼¼ÊõÖ¸±ê 1¡¢ ¸ÅÊö K-823 ¾¼ÃÐÍ12·ģ³ö½Ó¿Ú¿¨ÊÊÓÃÓÚ·ûºÏPC£¯ISA×ÜÏß±ê×¼µÄÉÌÓûú¼°¹¤¿Ø»ú¡£¾ßÓÐÊÊÓ÷¶Î§¹ã¡¢²Ù×÷ʹÓüò±ã¡¢¿¹¸ÉÈÅÄÜÁ¦Ç¿µÄÌØµã¡£Óû§¿É¸ù¾Ý¿ØÖƶÔÏóµÄÐèÒª£¬Ñ¡Ôñµçѹ»òµçÁ÷Êä³ö·½Ê½ÒÔ¼°²»Í¬µÄÊä³öÁ¿³Ì¡£ 2¡¢Ö÷Òª¼¼ÊõÖ¸±ê Êä³öͨµÀÊý£º12· (»¥Ïà¶ÀÁ¢£¬¿Éͬʱ»ò·Ö±ðÊä³ö) Êä³öÐźŷ¶Î§£º(±ê*Ϊ³ö³§±ê׼״̬) µçѹ·½Ê½£º0¡«10V(*)£»¡À5V£» µçÁ÷·½Ê½£º4¡«20mA Êä³ö×迹£º¡Ü2¦¸ (µçѹ·½Ê½) D£¯Aת»»Æ÷¼þ£ºDAC0832 D£¯Aת»»·Ö±æÂÊ£º 8λ D£¯Aת»»Êä³öÂëÖÆ£º¶þ½øÖÆÔÂë(µ¥¼«ÐÔÊä³ö·½Ê½Ê±)* D£¯Aת»»½¨Á¢Ê±¼ä£º¡Ü1¦ÌS ϵͳ×ۺϽ¨Á¢Ê±¼ä£ºÔ¼10¦ÌS D£¯Aת»»×ÛºÏÎó²î£ºµçѹ·½Ê½£º¡Ü0.2£¥ FSR µçÁ÷·½Ê½£º¡Ü1£¥ FSR µçѹÊä³ö·½Ê½¸ºÔØÄÜÁ¦£º5mA£¯Ã¿Â· µçÁ÷Êä³ö·½Ê½¸ºÔصç×跶Χ£º¡Ü 400¦¸ µçÔ´¹¦ºÄ£º È«µçѹÊä³ö·½Ê½£º4W È«µçÁ÷Êä³ö·½Ê½£º5W
|