ä¸ï¼å½çµå¨è½¦æå·æ§å¶å¨æ²¡æè¾åºæ¶
1ãå°ä¸ç¨è¡¨è®¾ç½®å¨+20å(DC)æ¡£ä½ï¼å
æµéé¸æè¾åºä¿¡å·çé«ãä½çµä½ã
2ãå¦æé¸ææ¶ï¼é¸æä¿¡å·æè¶
è¿4Vççµä½ååï¼åå¯æé¤é¸ææ
éã
3ãç¶åæç
§æå·æ§å¶å¨å¸¸ç¨ä¸éä¸èåè½è¡¨ï¼ä¸æµéåºç主æ§ä¸éæ°é»è¾è¯çççµåå¼è¿è¡çµè·¯åæï¼å¹¶æ£æ¥åè¯çå¤å´å¨ä»¶(çµé»ãçµå®¹ãäºæ管)çæ°å¼æ¯å¦åå
件表é¢çæ è¯ç¸ä¸è´ã
4ãæåæ£æ¥å¤å´å¨ä»¶ææ¯éæçµè·¯åºç°æ
éï¼æ们å¯ä»¥éè¿æ´æ¢ååå·çå¨ä»¶æ¥æé¤æ
éã
äºï¼å½çµå¨è½¦æ å·æ§å¶å¨å®å
¨æ²¡æè¾åºæ¶
1ãåç
§æ å·çµæºæ§å¶å¨ä¸»ç¸ä½æ£æ¥æµéå¾ï¼ç¨ä¸ç¨è¡¨ç´æµçµå+50Væ¡£ï¼æ£æµ6è·¯MOS管æ
æçµåæ¯å¦ä¸è½¬æç转å¨è§åº¦å对åºå
³ç³»ã
2ãå¦æ²¡æ对ï¼è¡¨ç¤ºæ§å¶å¨éçPWMçµè·¯æMOS管驱å¨çµè·¯ææ
éã
3ãåç
§æ å·æ§å¶å¨ä¸»ç¸ä½æ£æ¥å¾ï¼æµéè¯ççè¾å
¥è¾åºå¼èççµåæ¯å¦ä¸è½¬æ转å¨è§åº¦æ对åºå
³ç³»ï¼å¯ä»¥å¤æåªäºè¯çææ
éï¼æ´æ¢ååå·è¯çå³å¯æé¤æ
éã
ä¸ï¼å½çµå¨è½¦æå·æ§å¶å¨æ§å¶é¨ä»¶ççµæºä¸æ£å¸¸æ¶
1ãçµå¨è½¦æ§å¶å¨å
é¨çµæºä¸è¬éç¨ä¸ç«¯ç¨³åéæçµè·¯ï¼ä¸è¬ç¨7805ã7806ã7812ã7815ä¸ç«¯ 稳åéæçµè·¯ï¼å®ä»¬çè¾åºçµååå«æ¯5Vã6Vã12Vã15Vã
2ãå°ä¸ç¨è¡¨è®¾ç½®å¨ç´æµçµå+20V(DC)æ¡£ä½ï¼å°ä¸ç¨è¡¨é»è¡¨ç¬ä¸çº¢è¡¨ç¬åå«é å¨è½¬æçé»çº¿å红线ä¸ï¼è§å¯ä¸ç¨è¡¨è¯»æ°æ¯å¦ä¸æ 称çµåç¸ç¬¦ï¼å®ä»¬çä¸ä¸çµåå·®ä¸åºè¶
è¿0ã2Vã
3ãå¦å说ææ§å¶å¨å
é¨çµæºåºç°æ
éäºï¼ä¸è¬æå·æ§å¶å¨å¯ä»¥éè¿æ´æ¢ä¸ç«¯ç¨³åéæçµè·¯æé¤æ
éã
温馨提示:答案为网友推荐,仅供参考