ºÃÎĵµ - רҵÎÄÊéд×÷·¶ÎÄ·þÎñ×ÊÁÏ·ÖÏíÍøÕ¾

boostÕ¶²¨µç·_Éýѹն²¨µç·_µçÁ¦µç×Ó¼¼Êõ¿Î³ÌÉè¼Æ±¨¸æÊé

ÓÉ ÌìÏ ·ÖÏí ʱ¼ä£º ¼ÓÈëÊÕ²Ø ÎÒҪͶ¸å µãÔÞ

ÏÂÔؿɱ༭

.רҵ.ÕûÀí.

ÈÎÎñÊé

¿Î³ÌÃû³Æ£ºÖ±Á÷Õ¶²¨µç·µÄÐÔÄÜÑо¿

ѧ Ôº£ºµçÆøѧԺ רҵ°à¼¶£º×Ô¶¯»¯10°à

ÐÕ Ãû£ºÎâ ѧºÅ£º31100800

31100800 ·ë 31100800

µçÁ¦µç×Ó¼¼Êõ¿Î³ÌÉè¼ÆÏÂÔؿɱ༭

2013Äê1ÔÂ

Ŀ¼

ÕªÒª .................................................................... - 1 - 1 BOOSTÕ¶²¨µç·¹¤×÷Ô­Àí ................................................ - 2 -

1.1 Ö÷µç·¹¤×÷Ô­Àí ................................................. - 2 - 1.2 ¿ØÖƵç·ѡÔñ ................................................... - 2 - 2 Ó²¼þµ÷ÊÔ .............................................................. - 4 -

2.1 µçÔ´µç·Éè¼Æ ................................................... - 4 - 2.2 Éýѹ£¨boost£©Õ¶²¨µç·Ö÷µç·Éè¼Æ ................................ - 5 - 2.3 ¿ØÖƵç·Éè¼Æ ................................................... - 6 - 2.4 Çý¶¯µç·Éè¼Æ .................................................. - 10 - 2.5 ±£»¤µç·Éè¼Æ .................................................. - 11 -

2.5.1 ¹ýѹ±£»¤µç· ............................................ - 11 - 2.5.2 ¹ýÁ÷±£»¤µç· ............................................ - 13 - 2.6 Ö±Á÷Éýѹն²¨µç·×ܵç· ........................................ - 13 - 3×ܽá .................................................................. - 15 - 4²Î¿¼ÎÄÏ× .............................................................. - 16 -

.רҵ.ÕûÀí.

ÏÂÔؿɱ༭

ÕªÒª

Ö±Á÷Õ¶²¨µç·µÄ¹¦ÄÜÊǽ«Ö±Á÷µç±äΪÁíÒ»Ö̶ֹ¨µÄ»ò¿Éµ÷µÄÖ±Á÷µç£¬Ò²³ÆΪֱÁ÷-Ö±Á÷±ä»»Æ÷£¨DC/DC Converter£©£¬Ö±Á÷Õ¶²¨µç·һ°ãÊÇÖ¸Ö±½Ó½«Ö±Á÷±ä³ÉÖ±Á÷µÄÇé¿ö£¬²»°üÀ¨Ö±Á÷-½»Á÷-Ö±Á÷µÄÇé¿ö£»Ö±Á÷Õ¶²¨µç·µÄÖÖÀàºÜ¶à£º½µÑ¹Õ¶²¨µç·£¬Éýѹն²¨µç·£¬ÕâÁ½ÖÖÊÇ×î»ù±¾µç·¡£ÁíÍ⻹ÓÐÉý½µÑ¹Õ¶²¨µç·£¬CukÕ¶²¨µç·£¬SepicÕ¶²¨µç·£¬ZetaÕ¶²¨µç·¡£Õ¶²¨Æ÷µÄ¹¤×÷·½Ê½ÓУºÂö¿íµ÷ÖÆ·½Ê½£¨Ts²»±ä£¬¸Ä±äton£©ºÍƵÂʵ÷ÖÆ·½Ê½£¨ton²»±ä£¬¸Ä±äTs£©¡£±¾Éè¼ÆÊÇ»ùÓÚSG3525оƬΪºËÐÄ¿ØÖƵÄÂö¿íµ÷ÖÆ·½Ê½µÄÉýѹն²¨µç·ºÍ½µÑ¹Õ¶²¨µç·£¬Éè¼Æ·ÖΪMultisim·ÂÕæºÍProtelÁ½´ó²¿·Ö¹¹³É¡£MultisimÖ÷ÒªÊÇ·ÂÕæ·ÖÎö£¬½èÖúÆäÇ¿´óµÄ·ÂÕ湦ÄÜ¿ÉÒÔºÜÖ±¹ÛµÄ¿´µ½PWM¿ØÖÆÊä³öµçѹµÄÇúÏßͼ£¬Í¨¹ýÉèÖòÎÊý·ÖÎöÊä³öÓëµç·²ÎÊýºÍ¿ØÖÆÁ¿µÄ¹Øϵ£¬ÀûÓÃÈí¼þ×Ô´øµÄµç±íºÍʾ²¨Æ÷ÄÜÖ±¹ÛµÄ·ÖÎö¸÷ÖÖÊä³ö½á¹û¡£µÚ¶þ²¿·ÖÊÇÓ²¼þµç·Éè¼Æ£¬Ëüͨ¹ýÈí¼þÉè¼ÆÍê³É¡£

¹Ø¼ü×Ö£ºÖ±Á÷Õ¶²¨£»PWM£»SG3525

.רҵ.ÕûÀí.

ÏÂÔؿɱ༭

1 BOOSTÕ¶²¨µç·¹¤×÷Ô­Àí

1.1 Ö÷µç·¹¤×÷Ô­Àí

±¾ÊµÑéÖ÷µç·ÊÇÖ±Á÷Éýѹն²¨µç·¼´boostÕ¶²¨µç·¡£

Ö±Á÷Éýѹ±äÁ÷Æ÷ÓÃÓÚÐèÒªÌáÉýÖ±Á÷µçѹµÄ³¡ºÏ£¬ÆäÀíͼÈçͼ1-1Ëùʾ¡£ÔÚµç·ÖÐVµ¼Í¨Ê±£¬µçÁ÷ÓÉE¾­Éýѹµç¸ÐLºÍVÐγɻØ·£¬µç¸ÐL´¢ÄÜ£»µ±V¹Ø¶Ïʱ£¬µç¸Ð²úÉúµÄ

ͼ1-1 Ö±Á÷Éýѹն²¨µç·ԭÀí·´µç¶¯ÊƺÍÖ±Á÷µçÔ´µçѹ·½ÏòÏàͬ»¥Ïàµþ¼Ó£¬´Ó¶øÔÚ¸ºÔزàµÃµ½¸ßÓÚµçÔ´µÄµçѹ£¬¶þ¼«¹ÜµÄ×÷ÓÃÊÇ×è¶ÏVµ¼Í¨ÊÇ£¬µçÈݵķŵç»Ø·¡£µ÷½Ú¿ª¹ØÆ÷¼þVµÄͨ¶ÏÖÜÆÚ£¬¿ÉÒÔµ÷Õû¸ºÔزàÊä³öµçÁ÷ºÍµçѹµÄ´óС¡£¸ºÔزàÊä³öµçѹµÄƽ¾ùֵΪ:

ttʽÖÐTΪV¿ª¹ØÖÜÆÚ,onΪµ¼Í¨Ê±¼ä£¬ottΪ¹Ø¶Ïʱ¼ä¡£Éýѹն²¨µç·֮ËùÒÔÄÜʹÊä³öµçѹ¸ßÓÚµçÔ´µçѹ£¬¹Ø¼üÓÐÁ½¸öÔ­Òò:Ò»ÊÇL´¢ÄÜÖ®ºó¾ßÓÐʹµçѹ±ÃÉýµÄ×÷Ó㬶þÊǵçÈÝC¿É½«Êä³öµçѹ±£³Öס¡£ÔÚÒÔÉÏ·ÖÎöÖУ¬ÈÏΪV´¦ÓÚ̬ͨÆÚ¼äÒòµçÈÝCµÄ×÷ÓÃʹµÃÊä³öµçѹUo²»±ä£¬µ«Êµ¼ÊÉÏCÖµ²»¿ÉÄÜΪÎÞÇî´ó£¬Ôڴ˽׶ÎÆäÏò¸ºÔطŵ磬U¡£±ØÈ»»áÓÐËùϽµ£¬¹Êʵ¼ÊÊä³öµçѹ»áÂÔµÍÓÚÀíÂÛËùµÃ½á¹û£¬²»¹ý£¬ÔÚµçÈÝCÖµ×ã¹»´óʱ£¬Îó²îºÜС£¬»ù±¾¿ÉÒÔºöÂÔ¡£

ton?toffTUo?E?Etofftoff£¨1-1£©

1.2 ¿ØÖƵç·ѡÔñ

¿ØÖƵç·ѡÓÃSG3525²úÉúÂö³å£¬ÔÙÀûÓÃTLP250×÷ΪÇý¶¯£¬×îÖÕÀûÓÃMOSFET¹ÜÀ´ÊµÏÖ¶ÔÖ÷µç·µÄ¿ØÖÆ£¬×îÖÕµç·Èçͼ1-2¡¢Í¼1-3Ëùʾ¡£

.רҵ.ÕûÀí.

ÏÂÔؿɱ༭

ͼ1-2 SG3525Âö³å²úÉúµç· 2 ͼ1-3 TLP250Âö³åÇý¶¯µç· .רҵ.ÕûÀí.

boostÕ¶²¨µç·_Éýѹն²¨µç·_µçÁ¦µç×Ó¼¼Êõ¿Î³ÌÉè¼Æ±¨¸æÊé

ÏÂÔؿɱ༭.רҵ.ÕûÀí.ÈÎÎñÊé¿Î³ÌÃû³Æ£ºÖ±Á÷Õ¶²¨µç·µÄÐÔÄÜÑо¿Ñ§Ôº£ºµçÆøѧԺרҵ°à¼¶£º×Ô¶¯»¯10°àÐÕÃû£ºÎâѧºÅ£º3110080031100800·ë
ÍƼö¶È£º
µã»÷ÏÂÔØÎĵµÎĵµÎªdoc¸ñʽ
1f1k19w6x15nd0e7n2yj9vfqx3d4pq01622
ÁìÈ¡¸£Àû

΢ÐÅɨÂëÁìÈ¡¸£Àû

΢ÐÅɨÂë·ÖÏí