{"id":19376,"date":"2015-05-25T17:05:26","date_gmt":"2015-05-25T10:05:26","guid":{"rendered":"https:\/\/banbientan.com\/?p=19376"},"modified":"2015-05-25T17:05:26","modified_gmt":"2015-05-25T10:05:26","slug":"mot-so-loi-ich-khi-su-dung-bien-tan","status":"publish","type":"post","link":"https:\/\/hunglong.banbientan.com\/?p=19376","title":{"rendered":"M\u1ed9t s\u1ed1 l\u1ee3i \u00edch khi s\u1eed d\u1ee5ng bi\u1ebfn t\u1ea7n"},"content":{"rendered":"

B\u1ed9 \u0111i\u1ec1u khi\u1ec3n xoay chi\u1ec1u (m\u00e0 ta quen g\u1ecdi l\u00e0 bi\u1ebfn t\u1ea7n<\/a><\/strong>) l\u00e0 c\u00e1c thi\u1ebft b\u1ecb \u0111\u1ec3 ki\u1ec3m so\u00e1t t\u1ed1c \u0111\u1ed9 \u0111\u1ed9ng c\u01a1 b\u1eb1ng c\u00e1ch chuy\u1ec3n \u0111i\u1ec7n \u00e1p m\u1ed9t chi\u1ec1u (DC) th\u00e0nh \u0111i\u1ec7n \u00e1p xoay chi\u1ec1u (AC). S\u1ef1 xu\u1ea5t hi\u1ec7n c\u1ee7a c\u00e1c b\u1ed9 \u0111i\u1ec1u khi\u1ec3n xoay chi\u1ec1u \u0111\u00e3 c\u1ea3i thi\u1ec7n n\u0103ng su\u1ea5t m\u1ed9t c\u00e1ch ngo\u1ea1n m\u1ee5c v\u00e0 c\u00f3 \u0111\u00f3ng g\u00f3p r\u1ea5t l\u1edbn v\u00e0o s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a ng\u00e0nh c\u00f4ng nghi\u1ec7p. H\u01a1n n\u1eefa, b\u1ed9 \u0111i\u1ec1u khi\u1ec3n xoay chi\u1ec1u \u0111\u00e3 mang l\u1ea1i m\u1ed9t s\u1ef1 thay \u0111\u1ed5i \u0111\u00e1ng k\u1ec3 cho cu\u1ed9c s\u1ed1ng c\u1ee7a ch\u00fang ta. V\u00ed d\u1ee5, lu\u1ed3ng kh\u00f4ng kh\u00ed t\u1eeb \u0111i\u1ec1u h\u00f2a kh\u00f4ng kh\u00ed v\u00e0 qu\u1ea1t c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh b\u1eb1ng c\u00e1ch thay \u0111\u1ed5i t\u1ed1c \u0111\u1ed9 \u0111\u1ed9ng c\u01a1. Nh\u1edd b\u1ed9 \u0111i\u1ec1u khi\u1ec3n, ch\u00fang ta c\u00f3 th\u1ec3 gi\u1eef ph\u00f2ng \u1edf m\u1ed9t nhi\u1ec7t \u0111\u1ed9 d\u1ec5 ch\u1ecbu ngay c\u1ea3 trong m\u00f9a h\u00e8 n\u00f3ng v\u00e0 m\u00f9a \u0111\u00f4ng l\u1ea1nh. C\u00e1c lu\u1ed3ng kh\u00f4ng kh\u00ed \u0111i\u1ec1u ti\u1ebft c\u0169ng l\u00e0m gi\u1ea3m ti\u00eau th\u1ee5 n\u0103ng l\u01b0\u1ee3ng, g\u00f3p ph\u1ea7n b\u1ea3o t\u1ed3n n\u0103ng l\u01b0\u1ee3ng.
\nC\u00f3 nhi\u1ec1u ph\u01b0\u01a1ng ph\u00e1p \u0111\u1ec3 ki\u1ec3m so\u00e1t t\u1ed1c \u0111\u1ed9 \u0111\u1ed9ng c\u01a1, nh\u01b0ng ph\u01b0\u01a1ng ph\u00e1p \u0111i\u1ec1u khi\u1ec3n t\u1ed1c \u0111\u1ed9 b\u1eb1ng c\u00e1ch thay \u0111\u1ed5i t\u1ea7n s\u1ed1 c\u00f3 t\u00ednh n\u0103ng v\u01b0\u1ee3t tr\u1ed9i v\u00e0 \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng m\u1ea1nh m\u1ebd, v\u1edbi s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a khoa h\u1ecdc k\u1ef9 thu\u1eadt v\u00e0 \u0111i\u1ec7n t\u1eed c\u00f4ng su\u1ea5t, bi\u1ebfn t\u1ea7n ng\u00e0y c\u00e0ng \u0111\u00e1p \u1ee9ng \u0111\u01b0\u1ee3c nhi\u1ec1u y\u00eau c\u1ea7u ph\u1ee9c t\u1ea1p.
\nTrong b\u00e0i vi\u1ebft n\u00e0y ch\u1ec9 n\u00eau l\u00ean m\u1ed1t s\u1ed1 l\u00fd do c\u1ea7n ph\u1ea3i s\u1eed d\u1ee5ng bi\u1ebfn t\u1ea7n, \u0111\u1ec3 hi\u1ec3u h\u01a1n v\u1ec1 bi\u1ebfn t\u1ea7n m\u1eddi click \u0111\u1ec3 xem bi\u1ebfn t\u1ea7n l\u00e0 g\u00ec<\/strong> <\/a><\/span>?
\n\u01afu \u0111i\u1ec3m c\u1ee7a vi\u1ec7c s\u1eed d\u1ee5ng bi\u1ebfn t\u1ea7n l\u00e0 g\u00ec ?<\/strong><\/p>\n\n\n\n\n\n\n
\"thay<\/a><\/td>\n\"khoi<\/a><\/td>\n\"ti<\/a><\/td>\n<\/tr>\n
1. T\u1ed1c \u0111\u1ed9 \u0111\u1ed9ng c\u01a1 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u1ef1 do thay \u0111\u1ed5i.<\/td>\n2. Kh\u1edfi \u0111\u1ed9ng v\u00e0 d\u1eebng \u00eam<\/td>\n3. Kh\u00f4ng c\u1ea7n thay \u0111\u1ed5i puly<\/td>\n<\/tr>\n
\"cong<\/a><\/td>\n\"thay<\/a><\/td>\n<\/td>\n<\/tr>\n
4. C\u00f3 th\u1ec3 gi\u1ea3m thi\u1ec3u c\u00f4ng su\u1ea5t ngu\u1ed3n \u0111i\u1ec7n<\/td>\n5. Chi\u1ec1u quay c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng thay \u0111\u1ed5i<\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Tr\u01b0\u1eddng h\u1ee3p 1 v\u1edbi b\u01a1m qu\u1ea1t:<\/strong><\/span>
\n\"khong      \"bien
\nKhi kh\u00f4ng s\u1eed d\u1ee5ng bien tan<\/a><\/strong>:
\nB\u1ea1n kh\u00f4ng th\u1ec3 thay \u0111\u1ed5i t\u1ed1c \u0111\u1ed9 \u0111\u1ed9ng c\u01a1 v\u00e0 c\u1ea7n ph\u1ea3i \u0111i\u1ec1u ch\u1ec9nh lu\u1ed3ng kh\u00f4ng kh\u00ed b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng m\u1ed9t van \u0111i\u1ec1u ti\u1ebft (van on-off). Ngay c\u1ea3 khi b\u1ea1n l\u00e0m gi\u1ea3m lu\u1ed3ng kh\u00f4ng kh\u00ed, l\u01b0\u1ee3ng \u0111i\u1ec7n s\u1eed d\u1ee5ng s\u1ebd kh\u00f4ng thay \u0111\u1ed5i \u0111\u00e1ng k\u1ec3.
\nKhi s\u1eed d\u1ee5ng bi\u1ebfn t\u1ea7n :
\n<\/strong>
\nT\u1ed1c \u0111\u1ed9 \u0111\u1ed9ng c\u01a1 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c t\u1ef1 do thay \u0111\u1ed5i. \u0110\u1ed1i v\u1edbi qu\u1ea1t v\u00e0 m\u00e1y b\u01a1m, t\u00e1c d\u1ee5ng ti\u1ebft ki\u1ec7m \u0111i\u1ec7n r\u1ea5t l\u1edbn.
\nTr\u01b0\u1eddng h\u1ee3p 2 v\u1edb b\u0103ng t\u1ea3i:<\/span><\/strong>
\n\"bang<\/a>            \"bang<\/a>
\n 
\nKhi kh\u00f4ng l\u1eafp bi\u1ebfn t\u1ea7n b\u0103ng t\u1ea3i kh\u1edfi \u0111\u1ed9ng v\u00e0 d\u1eebng \u0111\u1ed9t ng\u1ed9t l\u00e0m cho v\u1eadt tr\u00ean b\u0103ng t\u1ea3i b\u1ecb \u0111\u1ed5 ho\u1eb7c r\u01a1i, khi l\u1eafp bi\u1ebfn t\u1ea7n qu\u00e1 tr\u00ecnh kh\u1edfi \u0111\u1ed9ng v\u00e0 d\u1eebng \u00eam n\u00ean v\u1eadt kh\u00f4ng b\u1ecb \u0111\u1ed5.
\n 
\nTr\u01b0\u1eddng h\u1ee3p 3 l\u01b0\u1edbi \u0111i\u1ec7n thay \u0111\u1ed5i t\u1ea7n s\u1ed1:<\/strong><\/span>
\n\"thay<\/a>                    \"dung<\/a><\/strong><\/span>
\nKhi kh\u00f4ng s\u1eed d\u1ee5ng bi\u1ebfn t\u1ea7n B\u1ea1n kh\u00f4ng th\u1ec3 thay \u0111\u1ed5i t\u1ed1c \u0111\u1ed9 \u0111\u1ed9ng c\u01a1 v\u00e0 ph\u1ea3i \u0111i\u1ec1u ch\u1ec9nh t\u1ed1c \u0111\u1ed9 b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng m\u1ed9t Puly.
\nM\u1ea5t m\u1ed9t l\u1ef1c \u0111\u1ec3 di chuy\u1ec3n …
\nKhi s\u1eed d\u1ee5ng bi\u1ebfn t\u1ea7n ch\u00fang ta c\u00f3 th\u1ec3 chu\u1ea9n h\u00f3a m\u00e1y, d\u00f9ng cho c\u1ea3 hai ngu\u1ed3n \u0111i\u1ec7n t\u1ea7n s\u1ed1 50Hz v\u00e0 60Hz
\nXem th\u00eam : t\u1ea1i sao ph\u1ea3i l\u1eafp bi\u1ebfn t\u1ea7n ?<\/a><\/strong><\/span>
\n 
\n <\/p>\n","protected":false},"excerpt":{"rendered":"

B\u1ed9 \u0111i\u1ec1u khi\u1ec3n xoay chi\u1ec1u (m\u00e0 ta quen g\u1ecdi l\u00e0 bi\u1ebfn t\u1ea7n) l\u00e0 c\u00e1c thi\u1ebft b\u1ecb \u0111\u1ec3 ki\u1ec3m so\u00e1t t\u1ed1c \u0111\u1ed9 \u0111\u1ed9ng c\u01a1 b\u1eb1ng c\u00e1ch chuy\u1ec3n \u0111i\u1ec7n \u00e1p m\u1ed9t chi\u1ec1u (DC) th\u00e0nh \u0111i\u1ec7n \u00e1p xoay chi\u1ec1u (AC). S\u1ef1 xu\u1ea5t hi\u1ec7n c\u1ee7a c\u00e1c b\u1ed9 \u0111i\u1ec1u khi\u1ec3n xoay chi\u1ec1u \u0111\u00e3 c\u1ea3i thi\u1ec7n n\u0103ng su\u1ea5t m\u1ed9t c\u00e1ch ngo\u1ea1n […]<\/p>\n","protected":false},"author":2,"featured_media":22626,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12,13240],"tags":[697,10042,13241,13242,13200],"class_list":["post-19376","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cau-hoi-ve-bien-tan","category-noi-bat-1","tag-bien-tan","tag-bien-tan-la-gi","tag-tac-dung-cua-bien-tan","tag-tai-sao-phai-dung-bien-tan","tag-tai-sao-phai-lap-bien-tan"],"_links":{"self":[{"href":"https:\/\/hunglong.banbientan.com\/index.php?rest_route=\/wp\/v2\/posts\/19376","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hunglong.banbientan.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hunglong.banbientan.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hunglong.banbientan.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/hunglong.banbientan.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=19376"}],"version-history":[{"count":0,"href":"https:\/\/hunglong.banbientan.com\/index.php?rest_route=\/wp\/v2\/posts\/19376\/revisions"}],"wp:attachment":[{"href":"https:\/\/hunglong.banbientan.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=19376"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hunglong.banbientan.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=19376"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hunglong.banbientan.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=19376"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}