{"id":18747,"date":"2020-11-24T09:05:05","date_gmt":"2020-11-24T09:05:05","guid":{"rendered":"https:\/\/hocvienit.vn\/?p=18747"},"modified":"2024-07-03T12:32:26","modified_gmt":"2024-07-03T05:32:26","slug":"tong-hop-gia-tri-dien-tro-va-tu-dien-trong-thuc-te","status":"publish","type":"post","link":"https:\/\/hocvienit.vn\/?p=18747","title":{"rendered":"T\u1ed5ng h\u1ee3p gi\u00e1 tr\u1ecb \u0111i\u1ec7n tr\u1edf v\u00e0 t\u1ee5 \u0111i\u1ec7n trong th\u1ef1c t\u1ebf"},"content":{"rendered":"

Trong tr\u01b0\u1eddng h\u1ee3p b\u1ea1n mu\u1ed1n mua m\u1ed9t con \u0111i\u1ec7n tr\u1edf hay m\u1ed9t con t\u1ee5 \u0111i\u1ec7n ho\u1eb7c b\u1ea1n mu\u1ed1n \u0111\u1ed1i chi\u1ebfu k\u1ebft qu\u1ea3 \u0111\u1ecdc \u0111i\u1ec7n tr\u1edf c\u00f3 ch\u00ednh x\u00e1c hay kh\u00f4ng th\u00ec b\u1ea1n c\u1ea7n bi\u1ebft gi\u00e1 tr\u1ecb \u0111i\u1ec7n tr\u1edf v\u00e0 t\u1ee5 \u0111i\u1ec7n trong th\u1ef1c t\u1ebf<\/strong>. B\u00e0i vi\u1ebft d\u01b0\u1edbi \u0111\u00e2y s\u1ebd c\u00f3 c\u00e2u tr\u1ea3 l\u1eddi cho b\u1ea1n.<\/span><\/p>\n

\"T\u1ed5ng
T\u1ed5ng h\u1ee3p gi\u00e1 tr\u1ecb \u0111i\u1ec7n tr\u1edf v\u00e0 t\u1ee5 \u0111i\u1ec7n trong th\u1ef1c t\u1ebf<\/span><\/figcaption><\/figure>\n

Gi\u00e1 tr\u1ecb \u0111i\u1ec7n tr\u1edf trong th\u1ef1c t\u1ebf<\/strong><\/span><\/h2>\n

T\u1ee5 \u0111i\u1ec7n<\/strong><\/a> kh\u00f4ng \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t gi\u00e1 tr\u1ecb t\u1eeb 0 \u0111\u1ebfn v\u00f4 c\u00f9ng m\u00e0 n\u00f3 ch\u1ec9 c\u00f3 nh\u1eefng gi\u00e1 tr\u1ecb c\u1ee5 th\u1ec3, th\u00f4ng d\u1ee5ng theo quy chu\u1ea9n qu\u1ed1c t\u1ebf.\u00a0<\/span><\/p>\n

Gi\u00e1 tr\u1ecb \u0111i\u1ec7n tr\u1edf th\u1ef1c t\u1ebf trong s\u1ea3n xu\u1ea5t s\u1ebd c\u0103n c\u1ee9 v\u00e0o c\u1ed9t \u0111i\u1ec7n tr\u1edf c\u01a1 s\u1edf g\u1ed1c \u0111\u00f3 l\u00e0 c\u1ed9t ngo\u00e0i c\u00f9ng b\u00ean tr\u00e1i. V\u1edbi c\u00e1c gi\u00e1 tr\u1ecb kh\u00e1c th\u00ec ng\u01b0\u1eddi ta s\u1ebd nh\u00e2n ho\u1eb7c chia v\u1edbi 10, 100, 1000\u2026 Do \u0111\u00f3, ch\u00fang ta kh\u00f4ng c\u1ea7n nh\u1edb h\u1ebft b\u1ea3ng gi\u00e1 tr\u1ecb \u0111i\u1ec7n tr\u1edf n\u00e0y m\u00e0 ch\u1ec9 c\u1ea7n nh\u1edb c\u1ed9t ngo\u00e0i c\u00f9ng b\u00ean tr\u00e1i.<\/span><\/p>\n

Mu\u1ed1n thay \u0111\u1ed5i gi\u00e1 tr\u1ecb \u0111i\u1ec7n tr\u1edf, ng\u01b0\u1eddi ta c\u00f3 th\u1ec3 m\u1eafc n\u1ed1i ti\u1ebfp ho\u1eb7c m\u1eafc song song nh\u1eefng con \u0111i\u1ec7n tr\u1edf. Khi \u0111\u00f3, ta c\u00f3 c\u00f4ng th\u1ee9c nh\u01b0 sau:<\/span><\/p>\n

– Tr\u01b0\u1eddng h\u1ee3p m\u1eafc n\u1ed1i ti\u1ebfp:<\/span><\/p>\n

Rtd<\/sub> = R1<\/sub> + R2<\/sub> + \u2026 + Rn<\/sub><\/strong><\/span><\/p>\n

– Tr\u01b0\u1eddng h\u1ee3p m\u1eafc song song:<\/span><\/p>\n

Rtd<\/sub> = 1\/R1<\/sub> + 1\/R2<\/sub> + \u2026 + 1\/Rn<\/sub><\/strong><\/span><\/p>\n

D\u01b0\u1edbi \u0111\u00e2y l\u00e0 b\u1ea3ng gi\u00e1 tr\u1ecb \u0111i\u1ec7n tr\u1edf trong th\u1ef1c t\u1ebf:<\/span><\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Gi\u00e1 tr\u1ecb \u0111i\u1ec7n tr\u1edf ti\u00eau chu\u1ea9n (\u00b1 5%)<\/strong><\/span><\/td>\n<\/tr>\n
1<\/span><\/td>\n10<\/span><\/td>\n100<\/span><\/td>\n1.0K<\/span><\/td>\n10K<\/span><\/td>\n100K<\/span><\/td>\n1.0M<\/span><\/td>\n<\/tr>\n
1.1<\/span><\/td>\n11<\/span><\/td>\n110<\/span><\/td>\n1.1K<\/span><\/td>\n11K<\/span><\/td>\n110K<\/span><\/td>\n1.1M<\/span><\/td>\n<\/tr>\n
1.2<\/span><\/td>\n12<\/span><\/td>\n120<\/span><\/td>\n1.2K<\/span><\/td>\n12K<\/span><\/td>\n120K<\/span><\/td>\n1.2M<\/span><\/td>\n<\/tr>\n
1.3<\/span><\/td>\n13<\/span><\/td>\n130<\/span><\/td>\n1.3K<\/span><\/td>\n13K<\/span><\/td>\n130K<\/span><\/td>\n1.3M<\/span><\/td>\n<\/tr>\n
1.5<\/span><\/td>\n15<\/span><\/td>\n150<\/span><\/td>\n1.5K<\/span><\/td>\n15K<\/span><\/td>\n150K<\/span><\/td>\n1.5M<\/span><\/td>\n<\/tr>\n
1.6<\/span><\/td>\n16<\/span><\/td>\n160<\/span><\/td>\n1.6K<\/span><\/td>\n16K<\/span><\/td>\n160K<\/span><\/td>\n1.6M<\/span><\/td>\n<\/tr>\n
1.8<\/span><\/td>\n18<\/span><\/td>\n180<\/span><\/td>\n1.8K<\/span><\/td>\n18K<\/span><\/td>\n180K<\/span><\/td>\n1.8M<\/span><\/td>\n<\/tr>\n
2.0<\/span><\/td>\n20<\/span><\/td>\n200<\/span><\/td>\n2.0K<\/span><\/td>\n20K<\/span><\/td>\n200K<\/span><\/td>\n2.0M<\/span><\/td>\n<\/tr>\n
2.2<\/span><\/td>\n22<\/span><\/td>\n220<\/span><\/td>\n2.2K<\/span><\/td>\n22K<\/span><\/td>\n220K<\/span><\/td>\n2.2M<\/span><\/td>\n<\/tr>\n
2.4<\/span><\/td>\n24<\/span><\/td>\n240<\/span><\/td>\n2.4K<\/span><\/td>\n24K<\/span><\/td>\n240K<\/span><\/td>\n2.4M<\/span><\/td>\n<\/tr>\n
2.7<\/span><\/td>\n27<\/span><\/td>\n270<\/span><\/td>\n2.7K<\/span><\/td>\n27K<\/span><\/td>\n270K<\/span><\/td>\n2.7M<\/span><\/td>\n<\/tr>\n
3.0<\/span><\/td>\n30<\/span><\/td>\n300<\/span><\/td>\n3.0K<\/span><\/td>\n30K<\/span><\/td>\n300K<\/span><\/td>\n3.0M<\/span><\/td>\n<\/tr>\n
3.3<\/span><\/td>\n33<\/span><\/td>\n330<\/span><\/td>\n3.3K<\/span><\/td>\n33K<\/span><\/td>\n330K<\/span><\/td>\n3.3M<\/span><\/td>\n<\/tr>\n
3.6<\/span><\/td>\n36<\/span><\/td>\n360<\/span><\/td>\n3.6K<\/span><\/td>\n36K<\/span><\/td>\n360K<\/span><\/td>\n3.6M<\/span><\/td>\n<\/tr>\n
3.9<\/span><\/td>\n39<\/span><\/td>\n390<\/span><\/td>\n3.9K<\/span><\/td>\n39K<\/span><\/td>\n390K<\/span><\/td>\n3.9M<\/span><\/td>\n<\/tr>\n
4.3<\/span><\/td>\n43<\/span><\/td>\n430<\/span><\/td>\n4.3K<\/span><\/td>\n43K<\/span><\/td>\n430K<\/span><\/td>\n4.3M<\/span><\/td>\n<\/tr>\n
4.7<\/span><\/td>\n47<\/span><\/td>\n470<\/span><\/td>\n4.7K<\/span><\/td>\n47K<\/span><\/td>\n470K<\/span><\/td>\n4.7M<\/span><\/td>\n<\/tr>\n
5.1<\/span><\/td>\n51<\/span><\/td>\n510<\/span><\/td>\n5.1K<\/span><\/td>\n51K<\/span><\/td>\n510K<\/span><\/td>\n5.1M<\/span><\/td>\n<\/tr>\n
5.6<\/span><\/td>\n56<\/span><\/td>\n560<\/span><\/td>\n5.6K<\/span><\/td>\n56K<\/span><\/td>\n560K<\/span><\/td>\n5.6M<\/span><\/td>\n<\/tr>\n
6.2<\/span><\/td>\n62<\/span><\/td>\n620<\/span><\/td>\n6.2K<\/span><\/td>\n62K<\/span><\/td>\n620K<\/span><\/td>\n6.2M<\/span><\/td>\n<\/tr>\n
6.8<\/span><\/td>\n68<\/span><\/td>\n680<\/span><\/td>\n6.8K<\/span><\/td>\n68K<\/span><\/td>\n680K<\/span><\/td>\n6.8M<\/span><\/td>\n<\/tr>\n
7.5<\/span><\/td>\n75<\/span><\/td>\n750<\/span><\/td>\n7.5K<\/span><\/td>\n75K<\/span><\/td>\n750K<\/span><\/td>\n7.5M<\/span><\/td>\n<\/tr>\n
8.2<\/span><\/td>\n82<\/span><\/td>\n820<\/span><\/td>\n8.2K<\/span><\/td>\n82K<\/span><\/td>\n820K<\/span><\/td>\n8.2M<\/span><\/td>\n<\/tr>\n
9.1<\/span><\/td>\n91<\/span><\/td>\n910<\/span><\/td>\n9.1K<\/span><\/td>\n91K<\/span><\/td>\n910K<\/span><\/td>\n9.1M<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Gi\u00e1 tr\u1ecb t\u1ee5 \u0111i\u1ec7n trong th\u1ef1c t\u1ebf<\/strong><\/span><\/h2>\n

B\u1ea3ng gi\u00e1 tr\u1ecb t\u1ee5 \u0111i\u1ec7n<\/strong><\/a> trong th\u1ef1c t\u1ebf c\u0169ng t\u01b0\u01a1ng t\u1ef1 v\u1edbi b\u1ea3ng tr\u00ean: C\u00f3 m\u1ed9t c\u1ed9t c\u01a1 s\u1edf v\u00e0 c\u00e1c gi\u00e1 tr\u1ecb ti\u1ebfp theo th\u00ec ng\u01b0\u1eddi ta s\u1ebd nh\u00e2n ho\u1eb7c chia v\u1edbi 10, 100, 1000\u2026<\/span><\/p>\n

T\u00ecm hi\u1ec3u th\u00eam:\u00a0T\u1ee5 \u0111i\u1ec7n l\u00e0 g\u00ec? Nh\u1eefng th\u00f4ng s\u1ed1 quan tr\u1ecdng c\u1ee7a t\u1ee5 \u0111i\u1ec7n<\/a><\/span><\/p><\/blockquote>\n

Mu\u1ed1n thay \u0111\u1ed5i gi\u00e1 tr\u1ecb ng\u01b0\u1eddi ta c\u00f3 th\u1ec3 m\u1eafc n\u1ed1i ti\u1ebfp ho\u1eb7c m\u1eafc song song. Khi \u0111\u00f3, ta c\u00f3 c\u00f4ng th\u1ee9c nh\u01b0 sau:<\/span><\/p>\n

– M\u1eafc n\u1ed1i ti\u1ebfp:<\/span><\/p>\n

Ctd<\/sub> = 1\/C1<\/sub> + 1\/C2<\/sub> +…+ 1\/Cn<\/sub><\/strong><\/span><\/p>\n

– M\u1eafc song song:<\/span><\/p>\n

Ctd<\/sub> = C1<\/sub> + C2<\/sub> +…+ Cn<\/sub><\/strong><\/span><\/p>\n

D\u01b0\u1edbi \u0111\u00e2y l\u00e0 b\u1ea3ng gi\u00e1 tr\u1ecb t\u1ee5 \u0111i\u1ec7n trong th\u1ef1c t\u1ebf:<\/span><\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Gi\u00e1 tr\u1ecb t\u1ee5 \u0111i\u1ec7n ti\u00eau chu\u1ea9n (\u00b1 10%)<\/span><\/strong><\/td>\n<\/tr>\n
10pF<\/span><\/td>\n100pF<\/span><\/td>\n1000pF<\/span><\/td>\n.010uF<\/span><\/td>\n.10uF<\/span><\/td>\n1.0uF<\/span><\/td>\n10uF<\/span><\/td>\n<\/tr>\n
12pF<\/span><\/td>\n120pF<\/span><\/td>\n1200pF<\/span><\/td>\n.012uF<\/span><\/td>\n.12uF<\/span><\/td>\n1.2uF<\/span><\/td>\n<\/td>\n<\/tr>\n
15pF<\/span><\/td>\n150pF<\/span><\/td>\n1500pF<\/span><\/td>\n.015uF<\/span><\/td>\n.15uF<\/span><\/td>\n1.5uF<\/span><\/td>\n<\/td>\n<\/tr>\n
18pF<\/span><\/td>\n180pF<\/span><\/td>\n1800pF<\/span><\/td>\n.018uF<\/span><\/td>\n.18uF<\/span><\/td>\n1.8uF<\/span><\/td>\n<\/td>\n<\/tr>\n
22pF<\/span><\/td>\n220pF<\/span><\/td>\n2200pF<\/span><\/td>\n.022uF<\/span><\/td>\n.22uF<\/span><\/td>\n2.2uF<\/span><\/td>\n22uF<\/span><\/td>\n<\/tr>\n
27pF<\/span><\/td>\n270pF<\/span><\/td>\n2700pF<\/span><\/td>\n.027uF<\/span><\/td>\n.27uF<\/span><\/td>\n2.7uF<\/span><\/td>\n<\/td>\n<\/tr>\n
33pF<\/span><\/td>\n330pF<\/span><\/td>\n3300pF<\/span><\/td>\n.033uF<\/span><\/td>\n.33uF<\/span><\/td>\n3.3uF<\/span><\/td>\n33uF<\/span><\/td>\n<\/tr>\n
39pF<\/span><\/td>\n390pF<\/span><\/td>\n3900pF<\/span><\/td>\n.039uF<\/span><\/td>\n.39uF<\/span><\/td>\n3.9uF<\/span><\/td>\n<\/td>\n<\/tr>\n
47pF<\/span><\/td>\n470pF<\/span><\/td>\n4700pF<\/span><\/td>\n.047uF<\/span><\/td>\n.47uF<\/span><\/td>\n4.7uF<\/span><\/td>\n47uF<\/span><\/td>\n<\/tr>\n
56pF<\/span><\/td>\n560pF<\/span><\/td>\n5600pF<\/span><\/td>\n.056uF<\/span><\/td>\n.56uF<\/span><\/td>\n5.6uF<\/span><\/td>\n<\/td>\n<\/tr>\n
68pF<\/span><\/td>\n680pF<\/span><\/td>\n6800pF<\/span><\/td>\n.068uF<\/span><\/td>\n.68uF<\/span><\/td>\n6.8uF<\/span><\/td>\n<\/td>\n<\/tr>\n
82pF<\/span><\/td>\n820pF<\/span><\/td>\n8200pF<\/span><\/td>\n.082uF<\/span><\/td>\n.82uF<\/span><\/td>\n8.2uF<\/span><\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Tr\u00ean \u0111\u00e2y l\u00e0 chia s\u1ebb c\u1ee7a HOCVIENiT.vn v\u1ec1 c\u00e1c ki\u1ebfn th\u1ee9c li\u00ean quan \u0111\u1ebfn gi\u00e1 tr\u1ecb \u0111i\u1ec7n tr\u1edf v\u00e0 t\u1ee5 \u0111i\u1ec7n trong th\u1ef1c t\u1ebf. N\u1ebfu c\u00f3 b\u1ea5t c\u1ee9 th\u1eafc m\u1eafc n\u00e0o v\u1ec1 c\u00e1c ki\u1ebfn th\u1ee9c li\u00ean quan \u0111\u1ebfn m\u00e1y t\u00ednh th\u00ec b\u1ea1n c\u00f3 th\u1ec3 \u0111\u1ec3 l\u1ea1i b\u00ecnh lu\u1eadn b\u00ean d\u01b0\u1edbi b\u00e0i vi\u1ebft n\u00e0y. V\u00e0 \u0111\u1eebng qu\u00ean \u0111\u00f3n \u0111\u1ecdc c\u00e1c b\u00e0i vi\u1ebft m\u1edbi nh\u1ea5t c\u1ee7a HOCVIENiT.vn nh\u00e9.<\/span><\/p>\n

M\u1ecdi chi ti\u1ebft xin vui l\u00f2ng li\u00ean h\u1ec7:
\n<\/i>C\u00d4NG TY C\u1ed4 PH\u1ea6N H\u1eccC VI\u1ec6N IT
\n<\/strong>MST: 0108733789
\n<\/strong>T\u1ed5ng \u0111\u00e0i h\u1ed7 tr\u1ee3: 024 3566 8686 \u2013 Hotline: 0981 223 001
\n<\/strong>Facebook:<\/strong>\u00a0www.fb.com\/hocvienit<\/a>
\n\u0110\u0103ng k\u00fd k\u00eanh Youtube \u0111\u1ec3 theo d\u00f5i c\u00e1c b\u00e0i h\u1ecdc c\u1ee7a Hu\u1ea5n luy\u1ec7n vi\u00ean t\u1ed1t nh\u1ea5t:<\/strong>\u00a0http:\/\/bit.ly\/Youtube_HOCVIENiT<\/a>
\nH\u1ec7 th\u1ed1ng c\u01a1 s\u1edf \u0111\u00e0o t\u1ea1o:\u00a0<\/b>https:\/\/hocvienit.vn\/lien-he\/<\/a>
\nH\u1ecdc vi\u1ec7n IT.vn \u2013 Truy\u1ec1n ngh\u1ec1 th\u1ef1c t\u1ebf c\u00f9ng b\u1ea1n \u0111\u1ebfn th\u00e0nh c\u00f4ng!\u00a0<\/i><\/strong><\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

Trong tr\u01b0\u1eddng h\u1ee3p b\u1ea1n mu\u1ed1n mua m\u1ed9t con \u0111i\u1ec7n tr\u1edf hay m\u1ed9t con t\u1ee5 \u0111i\u1ec7n ho\u1eb7c b\u1ea1n mu\u1ed1n \u0111\u1ed1i chi\u1ebfu k\u1ebft qu\u1ea3 \u0111\u1ecdc \u0111i\u1ec7n tr\u1edf c\u00f3 ch\u00ednh x\u00e1c hay kh\u00f4ng th\u00ec b\u1ea1n c\u1ea7n bi\u1ebft gi\u00e1 tr\u1ecb \u0111i\u1ec7n tr\u1edf v\u00e0 t\u1ee5 \u0111i\u1ec7n trong th\u1ef1c t\u1ebf. B\u00e0i vi\u1ebft d\u01b0\u1edbi \u0111\u00e2y s\u1ebd c\u00f3 c\u00e2u tr\u1ea3 l\u1eddi cho b\u1ea1n.<\/p>\n","protected":false},"author":95,"featured_media":18751,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[734],"tags":[245,661,246],"_links":{"self":[{"href":"https:\/\/hocvienit.vn\/index.php?rest_route=\/wp\/v2\/posts\/18747"}],"collection":[{"href":"https:\/\/hocvienit.vn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hocvienit.vn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hocvienit.vn\/index.php?rest_route=\/wp\/v2\/users\/95"}],"replies":[{"embeddable":true,"href":"https:\/\/hocvienit.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=18747"}],"version-history":[{"count":0,"href":"https:\/\/hocvienit.vn\/index.php?rest_route=\/wp\/v2\/posts\/18747\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hocvienit.vn\/index.php?rest_route=\/wp\/v2\/media\/18751"}],"wp:attachment":[{"href":"https:\/\/hocvienit.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=18747"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hocvienit.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=18747"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hocvienit.vn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=18747"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}