{"id":7020,"date":"2025-07-25T02:41:11","date_gmt":"2025-07-25T02:41:11","guid":{"rendered":"https:\/\/www.omch.com\/?p=7020"},"modified":"2025-11-14T09:14:34","modified_gmt":"2025-11-14T09:14:34","slug":"solid-state-relay-diagram","status":"publish","type":"post","link":"https:\/\/www.omch.com\/vi\/solid-state-relay-diagram\/","title":{"rendered":"S\u01a1 \u0111\u1ed3 r\u01a1le tr\u1ea1ng th\u00e1i r\u1eafn (SSR): H\u01b0\u1edbng d\u1eabn to\u00e0n di\u1ec7n v\u1ec1 c\u00e1ch hi\u1ec3u v\u00e0 s\u1eed d\u1ee5ng SSR"},"content":{"rendered":"

Bi\u1ec3u t\u01b0\u1ee3ng v\u00e0 s\u01a1 \u0111\u1ed3 m\u1ea1ch c\u1ee7a r\u01a1le tr\u1ea1ng th\u00e1i r\u1eafn<\/h2>\n\n\n\n

C\u00e1c k\u00fd hi\u1ec7u trong ng\u00f4n ng\u1eef s\u01a1 \u0111\u1ed3 m\u1ea1ch \u0111i\u1ec7n kh\u00f4ng ch\u1ec9 l\u00e0 nh\u1eefng n\u00e9t v\u1ebd ng\u1eabu h\u1ee9ng tr\u00ean gi\u1ea5y \u2013 ch\u00fang \u0111\u01b0\u1ee3c t\u1ea1o ra d\u1ef1a tr\u00ean ch\u1ee9c n\u0103ng. K\u00fd hi\u1ec7u c\u1ee7a r\u01a1le tr\u1ea1ng th\u00e1i r\u1eafn (SSR), ngay c\u1ea3 khi \u0111\u01b0\u1ee3c th\u1ec3 hi\u1ec7n d\u01b0\u1edbi d\u1ea1ng m\u1ed9t h\u00ecnh d\u1ea1ng \u0111\u01a1n gi\u1ea3n, c\u0169ng truy\u1ec1n t\u1ea3i m\u1ed9t m\u1ee9c \u0111\u1ed9 tr\u1eebu t\u01b0\u1ee3ng v\u1ec1 \u0111i\u1ec7n trong m\u1ed9t c\u00e1i nh\u00ecn. Theo truy\u1ec1n th\u1ed1ng, SSR \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n d\u01b0\u1edbi d\u1ea1ng m\u1ed9t h\u1ed9p h\u00ecnh ch\u1eef nh\u1eadt \u0111\u01b0\u1ee3c chia logic th\u00e0nh hai ph\u1ea7n: \u0111\u1ea7u v\u00e0o v\u00e0 \u0111\u1ea7u ra. S\u1ef1 ph\u00e2n chia n\u00e0y kh\u00f4ng ch\u1ec9 \u0111\u01a1n thu\u1ea7n l\u00e0 s\u1ef1 \u0111\u1ed1i x\u1ee9ng v\u1ec1 m\u1eb7t th\u1ea9m m\u1ef9 m\u00e0 c\u00f2n l\u00e0 \u0111\u1eb7c \u0111i\u1ec3m ch\u00ednh th\u1ec3 hi\u1ec7n t\u00ednh c\u00e1ch ly \u0111i\u1ec7n c\u1ee7a SSR.<\/p>\n\n\n\n

M\u1ed9t \u0111i-\u1ed1t, th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u0111\u00e1nh d\u1ea5u b\u1eb1ng c\u00e1c m\u0169i t\u00ean \u0111\u1ec3 bi\u1ec3u th\u1ecb \u0111\u00e8n LED (Light Emitting Diode), \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ch\u1ec9 ph\u00eda \u0111\u1ea7u v\u00e0o. \u0110i\u1ec1u n\u00e0y \u0111\u1ec1 c\u1eadp \u0111\u1ebfn thi\u1ebft b\u1ecb c\u00e1ch ly quang trong SSR: khi ph\u00eda \u0111\u1ea7u v\u00e0o nh\u1eadn \u0111\u01b0\u1ee3c t\u00edn hi\u1ec7u \u0111i\u1ec7n \u00e1p m\u1ed9t chi\u1ec1u th\u1ea5p (nh\u01b0ng kh\u00f4ng b\u1eb1ng kh\u00f4ng), \u0111\u00e8n LED s\u1ebd s\u00e1ng l\u00ean, truy\u1ec1n t\u00edn hi\u1ec7u \u0111\u1ebfn ph\u00eda \u0111\u1ea7u ra, nh\u01b0ng kh\u00f4ng c\u00f3 k\u1ebft n\u1ed1i \u0111i\u1ec7n v\u1eadt l\u00fd n\u00e0o gi\u1eefa hai ph\u00eda n\u00e0y.<\/p>\n\n\n\n

Ph\u00eda \u0111\u1ea7u ra c\u0169ng hi\u1ec3n th\u1ecb c\u00e1c th\u00e0nh ph\u1ea7n kh\u00e1c nhau t\u00f9y thu\u1ed9c v\u00e0o kh\u1ea3 n\u0103ng chuy\u1ec3n m\u1ea1ch c\u1ee7a r\u01a1le l\u00e0 AC hay DC. \u0110\u1ea7u ra SSR X l\u00e0 \u0111\u1ea7u ra AC c\u1ee7a SSR, bao g\u1ed3m m\u1ed9t TRIAC ho\u1eb7c hai SCR (B\u1ed9 ch\u1ec9nh l\u01b0u \u0111i\u1ec1u khi\u1ec3n b\u1eb1ng silicon) \u0111\u01b0\u1ee3c m\u1eafc song song ng\u01b0\u1ee3c, c\u1ea3 hai \u0111\u1ec1u l\u00e0 lo\u1ea1i thyristor, m\u1ed9t lo\u1ea1i thi\u1ebft b\u1ecb b\u00e1n d\u1eabn. Trong c\u00e1c bi\u1ebfn th\u1ec3 DC, m\u1ed9t b\u00f3ng b\u00e1n d\u1eabn c\u00f4ng su\u1ea5t (MOSFET ho\u1eb7c IGBT) \u0111\u01b0\u1ee3c minh h\u1ecda. C\u00e1c k\u00fd hi\u1ec7u n\u00e0y bi\u1ec3u th\u1ecb ho\u1ea1t \u0111\u1ed9ng chuy\u1ec3n m\u1ea1ch c\u1ee7a m\u1ea1ch r\u01a1le tr\u1ea1ng th\u00e1i r\u1eafn v\u00e0 kh\u1ea3 n\u0103ng \u0111i\u1ec1u khi\u1ec3n d\u00f2ng \u0111i\u1ec7n \u0111\u1ea7u ra v\u00e0 \u0111i\u1ec7n \u00e1p \u0111\u1ea7u ra c\u1ee7a n\u00f3.<\/p>\n\n\n\n

\u0110\u1ec3 th\u1ec3 hi\u1ec7n s\u01a1 \u0111\u1ed3 c\u00f3 chi\u1ec1u d\u00e0i l\u1edbn h\u01a1n, r\u00e0o c\u1ea3n c\u00e1ch ly c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c bi\u1ec3u th\u1ecb b\u1eb1ng m\u1ed9t \u0111\u01b0\u1eddng zigzag ho\u1eb7c bi\u1ec3u t\u01b0\u1ee3ng b\u1ed9 gh\u00e9p quang: m\u1ed9t \u0111i-\u1ed1t n\u1eb1m \u0111\u1ed1i di\u1ec7n v\u1edbi m\u1ed9t phototransistor trong m\u1ed9t h\u00ecnh tr\u00f2n. S\u1ef1 ph\u00e2n chia n\u00e0y gi\u1eefa m\u1ea1ch \u0111i\u1ec1u khi\u1ec3n v\u00e0 ph\u00eda t\u1ea3i kh\u00f4ng ch\u1ec9 mang t\u00ednh trang tr\u00ed m\u00e0 c\u00f2n nh\u1ea5n m\u1ea1nh s\u1ef1 c\u00e1ch ly \u0111i\u1ec7n m\u00f4i, th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u0111o b\u1eb1ng kilovolt.<\/p>\n\n\n\n

Tr\u1ea1ng th\u00e1i r\u1eafn <\/strong>R\u01a1le<\/strong> S\u01a1 \u0111\u1ed3 \u0111\u1ea5u d\u00e2y v\u00e0 <\/strong>Tr\u1ea1m<\/strong> X\u00e1c \u0111\u1ecbnh<\/strong><\/h2>\n\n\n\n

C\u00e1c k\u00fd hi\u1ec7u SSR r\u1ea5t h\u1eefu \u00edch trong vi\u1ec7c hi\u1ec3u ch\u1ee9c n\u0103ng c\u1ee7a c\u00e1c linh ki\u1ec7n trong m\u1ea1ch \u0111i\u1ec7n, nh\u01b0ng s\u01a1 \u0111\u1ed3 n\u1ed1i d\u00e2y m\u1edbi l\u00e0 y\u1ebfu t\u1ed1 bi\u1ebfn c\u00e1c ch\u1ee9c n\u0103ng \u0111\u00f3 th\u00e0nh hi\u1ec7n th\u1ef1c. Vi\u1ec7c h\u1ecdc c\u00e1ch n\u1ed1i d\u00e2y r\u01a1le tr\u1ea1ng th\u00e1i r\u1eafn l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng n\u00f3 m\u1ed9t c\u00e1ch an to\u00e0n v\u00e0 hi\u1ec7u qu\u1ea3 trong c\u00e1c m\u1ea1ch \u0111i\u1ec7n th\u1ef1c t\u1ebf.<\/p>\n\n\n\n

Nh\u1eadn d\u1ea1ng thi\u1ebft b\u1ecb \u0111\u1ea7u cu\u1ed1i<\/h3>\n\n\n\n

H\u1ea7u h\u1ebft c\u00e1c r\u01a1le tr\u1ea1ng th\u00e1i r\u1eafn \u0111\u1ec1u tu\u00e2n theo c\u1ea5u h\u00ecnh ch\u00e2n c\u1eafm ti\u00eau chu\u1ea9n:<\/p>\n\n\n\n

    \n
  • Nh\u00e0 ga s\u1ed1 3 v\u00e0 s\u1ed1 4 (<\/strong>Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt \u0111\u1ea7u v\u00e0o<\/strong> (b\u00ean)<\/strong>: \u0110\u1ea7u v\u00e0o t\u00edn hi\u1ec7u \u0111i\u1ec1u khi\u1ec3n m\u1ed9t chi\u1ec1u. Trong c\u00e1c r\u01a1le tr\u1ea1ng th\u00e1i r\u1eafn (SSR) \u0111i\u1ec1u khi\u1ec3n b\u1eb1ng d\u00f2ng m\u1ed9t chi\u1ec1u, c\u00e1c \u0111\u1ea7u v\u00e0o n\u00e0y nh\u1ea1y c\u1ea3m v\u1edbi c\u1ef1c t\u00ednh; \u0111\u1ea7u n\u1ed1i s\u1ed1 3 th\u01b0\u1eddng \u1edf m\u1ee9c \u0111i\u1ec7n th\u1ebf cao. \u0110\u00e2y l\u00e0 ph\u1ea7n m\u1ea1ch \u0111\u1ea7u v\u00e0o, c\u00f3 ch\u1ee9c n\u0103ng k\u00edch ho\u1ea1t d\u00f2ng \u0111i\u1ec7n \u1edf \u0111\u1ea7u ra.<\/li>\n\n\n\n
  • Nh\u00e0 ga s\u1ed1 1 v\u00e0 s\u1ed1 2 (<\/strong>\u0110\u1ea7u ra<\/strong> (b\u00ean)<\/strong>: Khi SSR \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t, d\u00f2ng \u0111i\u1ec7n ch\u1ea1y gi\u1eefa hai \u0111i\u1ec3m n\u00e0y c\u0169ng \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh theo, \u0111\u00f3 l\u00e0 l\u00fd do t\u1ea1i sao n\u00f3 c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh d\u00f2ng \u0111i\u1ec7n trong t\u1ea3i.<\/li>\n<\/ul>\n\n\n\n
    \"s\u01a1<\/figure>\n\n\n\n

    V\u00ed d\u1ee5 v\u1ec1 c\u00e1ch \u0111\u1ea5u d\u00e2y<\/h3>\n\n\n\n
      \n
    1. Chuy\u1ec3n m\u1ea1ch t\u1ea3i AC (AC-AC) <\/strong>SSR<\/strong>)<\/strong><\/li>\n<\/ol>\n\n\n\n
      [\u0110\u1ea7u ra DC c\u1ee7a PLC] \u2500\u2500\u2500(3 SSR 4)\u2500\u2500\u2500 [Ph\u00eda \u0111\u1ea7u v\u00e0o]     \n                           \u2502\n                       [L\u1edbp c\u00e1ch ly]         \n                           \u2502\n[Ngu\u1ed3n \u0111i\u1ec7n AC] \u2500\u2500\u2500(1 SSR 2)\u2500\u2500\u2500 [T\u1ea3i AC]<\/code><\/pre>\n\n\n\n
        \n
      • D\u1eef li\u1ec7u \u0111\u1ea7u v\u00e0o: T\u00edn hi\u1ec7u DC (v\u00ed d\u1ee5: t\u00edn hi\u1ec7u DC 5V\/24V t\u1eeb PLC)<\/li>\n\n\n\n
      • \u0110\u1ea7u ra: \u0110i\u1ec7n \u00e1p xoay chi\u1ec1u \u0111i\u1ec1u khi\u1ec3n b\u1ed9 gia nhi\u1ec7t, \u0111\u00e8n ho\u1eb7c \u0111\u1ed9ng c\u01a1<\/li>\n<\/ul>\n\n\n\n
        \u0110\u00f3 l\u00e0 m\u1ed9t \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a r\u01a1le tr\u1ea1ng th\u00e1i r\u1eafn m\u1ed9t pha.<\/p>\n\n\n\n
          \n
        1. Chuy\u1ec3n m\u1ea1ch t\u1ea3i DC (DC-DC) <\/strong>SSR<\/strong>)<\/strong><\/li>\n<\/ol>\n\n\n\n
          [B\u1ed9 vi \u0111i\u1ec1u khi\u1ec3n] \u2500\u2500\u2500(3 SSR 4)\u2500\u2500\u2500 [Ph\u00eda \u0111\u1ea7u v\u00e0o]    \n                           \u2502\n                       [B\u1ed9 c\u00e1ch ly quang]            \n                           \u2502\n[Ngu\u1ed3n \u0111i\u1ec7n m\u1ed9t chi\u1ec1u] \u2500\u2500\u2500(1 SSR 2)\u2500\u2500\u2500 [T\u1ea3i m\u1ed9t chi\u1ec1u]<\/code><\/pre>\n\n\n\n
            \n
          • \u0110\u1ea7u v\u00e0o: M\u1ea1ch logic TTL ho\u1eb7c 5V<\/li>\n\n\n\n
          • \u0110\u1ea7u ra: \u0110i\u1ec1u khi\u1ec3n c\u00e1c m\u1ea1ch \u0111i\u1ec7n m\u1ed9t chi\u1ec1u (DC) 12V, 24V ho\u1eb7c cao h\u01a1n<\/li>\n<\/ul>\n\n\n\n
            C\u00e1ch \u0111\u1ea5u d\u00e2y n\u00e0y l\u00e0 ti\u00eau chu\u1ea9n cho c\u00e1c \u1ee9ng d\u1ee5ng r\u01a1le m\u1ed9t pha d\u00f2ng \u0111i\u1ec7n m\u1ed9t chi\u1ec1u.<\/p>\n\n\n\n
            C\u00e1c l\u01b0u \u00fd v\u1ec1 h\u1ec7 th\u1ed1ng d\u00e2y \u0111i\u1ec7n<\/h3>\n\n\n\n
              \n
            • C\u1ef1c t\u00ednh r\u1ea5t quan tr\u1ecdng<\/strong>: \u0110\u1eb7c bi\u1ec7t, c\u00e1c r\u01a1le SSR d\u00f2ng DC c\u00f3 th\u1ec3 b\u1ecb h\u1ecfng n\u1ebfu n\u1ed1i c\u00e1c \u0111\u1ea7u v\u00e0o ho\u1eb7c \u0111\u1ea7u ra v\u1edbi c\u1ef1c t\u00ednh ng\u01b0\u1ee3c nhau.<\/li>\n\n\n\n
            • Lo\u1ea1i t\u1ea3i<\/strong>: trong tr\u01b0\u1eddng h\u1ee3p c\u00e1c t\u1ea3i c\u00f3 t\u00ednh ch\u1ea5t c\u1ea3m \u1ee9ng, c\u00e1c t\u1ea3i n\u00e0y ph\u1ea3i \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u1edbi c\u00e1c m\u1ea1ch gi\u1ea3m xung ho\u1eb7c c\u00e1c varistor, c\u00f3 ch\u1ee9c n\u0103ng h\u1ea5p th\u1ee5 c\u00e1c \u0111i\u1ec7n \u00e1p cao.<\/li>\n\n\n\n
            • L\u1eafp \u0111\u1eb7t<\/strong>: T\u00f9y thu\u1ed9c v\u00e0o c\u01b0\u1eddng \u0111\u1ed9 d\u00f2ng \u0111i\u1ec7n v\u00e0 chu k\u1ef3 l\u00e0m vi\u1ec7c, c\u00f3 th\u1ec3 c\u1ea7n ph\u1ea3i t\u00edch h\u1ee3p b\u1ed9 t\u1ea3n nhi\u1ec7t.<\/li>\n<\/ul>\n\n\n\n
              M\u1ea1ch ph\u00eda \u0111\u1ea7u v\u00e0o \u2013 C\u00e1ch ly \u0111\u00e8n LED v\u00e0 phototransistor<\/h2>\n\n\n\n
              C\u00e1ch ly quang l\u00e0 n\u1ec1n t\u1ea3ng c\u1ee7a SSR. Khi t\u00edn hi\u1ec7u \u0111\u1ea7u v\u00e0o \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o c\u00e1c c\u1ef1c \u0111i\u1ec1u khi\u1ec3n \u2014 th\u01b0\u1eddng l\u00e0 t\u00edn hi\u1ec7u t\u1eeb PLC ho\u1eb7c vi \u0111i\u1ec1u khi\u1ec3n \u2014 n\u00f3 s\u1ebd k\u00edch ho\u1ea1t m\u1ed9t \u0111\u00e8n LED b\u00ean trong. N\u0103ng l\u01b0\u1ee3ng \u00e1nh s\u00e1ng ph\u00e1t ra kh\u00f4ng truy\u1ec1n qua d\u00e2y d\u1eabn m\u00e0 \u0111i qua m\u1ed9t l\u1edbp \u0111i\u1ec7n m\u00f4i trong su\u1ed1t, t\u1ea1i \u0111\u00f3 n\u00f3 k\u00edch ho\u1ea1t m\u1ed9t linh ki\u1ec7n c\u1ea3m quang, c\u00f3 th\u1ec3 l\u00e0 phototransistor, phototriac ho\u1eb7c m\u1ea3ng photodiode.<\/p>\n\n\n\n
              Thi\u1ebft k\u1ebf n\u00e0y \u0111\u1ea3m b\u1ea3o:<\/p>\n\n\n\n
                \n
              • C\u00e1ch ly \u0111i\u1ec7n ho\u00e0n to\u00e0n gi\u1eefa h\u1ec7 th\u1ed1ng \u0111i\u1ec1u khi\u1ec3n v\u00e0 t\u1ea3i<\/li>\n\n\n\n
              • Kh\u1ea3 n\u0103ng ch\u1ed1ng nhi\u1ec5u: kh\u00f4ng c\u00f3 \u0111i\u1ec7n \u0111\u1ed9ng ng\u01b0\u1ee3c hay hi\u1ec7n t\u01b0\u1ee3ng qu\u00e1 \u0111\u1ed9 n\u00e0o \u0111\u01b0\u1ee3c truy\u1ec1n v\u00e0o m\u1ea1ch logic \u0111i\u1ec1u khi\u1ec3n<\/li>\n\n\n\n
              • T\u0103ng c\u01b0\u1eddng an to\u00e0n, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong c\u00e1c m\u00f4i tr\u01b0\u1eddng c\u00f4ng nghi\u1ec7p c\u00f3 \u0111i\u1ec7n \u00e1p cao<\/li>\n<\/ul>\n\n\n\n
                \u0110\u00e2y l\u00e0 m\u1ed9t c\u01a1 ch\u1ebf k\u00edch ho\u1ea1t b\u1eb1ng \u00e1nh s\u00e1ng, cung c\u1ea5p n\u0103ng l\u01b0\u1ee3ng cho c\u1ed5ng c\u1ee7a b\u00f3ng b\u00e1n d\u1eabn \u0111\u1ea7u ra ho\u1eb7c thyristor, v\u1ec1 c\u01a1 b\u1ea3n gi\u00fap chuy\u1ec3n m\u1ea1ch t\u1ea3i m\u00e0 kh\u00f4ng c\u1ea7n s\u1ef1 can thi\u1ec7p c\u01a1 h\u1ecdc hay chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a r\u01a1le \u0111i\u1ec7n c\u01a1 (EMR).<\/p>\n\n\n\n
                \"\"<\/figure>\n\n\n\n
                C\u1ea5u tr\u00fac thi\u1ebft b\u1ecb ph\u00eda \u0111\u1ea7u ra AC: SCR so v\u1edbi TRIAC<\/h2>\n\n\n\n
                  \n
                1. C\u1ea5u tr\u00fac TRIAC<\/strong><\/li>\n<\/ol>\n\n\n\n
                  TRIAC l\u00e0 m\u1ed9t c\u00f4ng t\u1eafc hai chi\u1ec1u c\u00f3 kh\u1ea3 n\u0103ng d\u1eabn \u0111i\u1ec7n theo c\u1ea3 hai h\u01b0\u1edbng v\u00e0o v\u00e0 ra khi \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t. V\u1ec1 m\u1eb7t ch\u1ee9c n\u0103ng, n\u00f3 k\u1ebft h\u1ee3p hai SCR \u0111\u01b0\u1ee3c n\u1ed1i song song ng\u01b0\u1ee3c trong c\u00f9ng m\u1ed9t v\u1ecf. Thi\u1ebft b\u1ecb n\u00e0y r\u1ea5t ph\u00f9 h\u1ee3p cho c\u00e1c \u1ee9ng d\u1ee5ng \u0111i\u1ec7n xoay chi\u1ec1u c\u00f4ng su\u1ea5t trung b\u00ecnh, nh\u01b0 chi\u1ebfu s\u00e1ng ho\u1eb7c s\u01b0\u1edfi \u1ea5m, n\u01a1i s\u00f3ng sin c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c chuy\u1ec3n m\u1ea1ch t\u1ea1i \u0111i\u1ec3m gi\u1eefa \u0111\u1ec3 gi\u1ea3m nhi\u1ec5u \u0111i\u1ec7n t\u1eeb (EMI).<\/p>\n\n\n\n
                  Tuy nhi\u00ean, c\u00e1c TRIAC d\u1ec5 b\u1ecb k\u00edch ho\u1ea1t sai trong m\u00f4i tr\u01b0\u1eddng c\u00f3 t\u00ednh c\u1ea3m \u1ee9ng do kh\u1ea3 n\u0103ng ch\u1ed1ng nhi\u1ec5u khi chuy\u1ec3n m\u1ea1ch c\u1ee7a ch\u00fang th\u1ea5p. Trong c\u00e1c \u1ee9ng d\u1ee5ng n\u00e0y, c\u00e1c nh\u00e0 thi\u1ebft k\u1ebf c\u00f3 th\u1ec3 l\u1ef1a ch\u1ecdn lo\u1ea1i c\u00f3 \u0111\u1ed9 b\u1ec1n cao h\u01a1n.<\/p>\n\n\n\n
                    \n
                  1. C\u1ea5u tr\u00fac SCR song song ngh\u1ecbch \u0111\u1ea3o<\/strong><\/li>\n<\/ol>\n\n\n\n
                    \u0110\u00e2y l\u00e0 c\u1ea5u h\u00ecnh song song ng\u01b0\u1ee3c hai chi\u1ec1u s\u1eed d\u1ee5ng hai SCR r\u1eddi r\u1ea1c. M\u1ed7i SCR s\u1ebd d\u1eabn \u0111i\u1ec7n trong n\u1eeda chu k\u1ef3 AC. Nh\u1edd \u0111\u1ed9 d\u1eabn nhi\u1ec7t cao h\u01a1n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ecbu dv\/dt t\u1ed1t h\u01a1n, c\u00e1c SCR n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u00e1c t\u1ea3i c\u00f3 qu\u00e1n t\u00ednh v\u00e0 \u0111i\u1ec7n c\u1ea3m cao, ch\u1eb3ng h\u1ea1n nh\u01b0 \u0111\u1ed9ng c\u01a1, m\u00e1y bi\u1ebfn \u00e1p v\u00e0 cu\u1ed9n d\u00e2y \u0111i\u1ec7n t\u1eeb c\u00f4ng nghi\u1ec7p.<\/p>\n\n\n\n
                    V\u1edbi k\u00edch th\u01b0\u1edbc l\u1edbn h\u01a1n m\u1ed9t ch\u00fat v\u00e0 \u0111\u01b0\u1ee3c trang b\u1ecb m\u1ea1ch \u0111i\u1ec1u khi\u1ec3n, c\u00e1c r\u01a1le tr\u1ea1ng th\u00e1i r\u1eafn SCR song song ngh\u1ecbch l\u00e0 l\u1ef1a ch\u1ecdn ph\u1ed5 bi\u1ebfn nh\u1ea5t trong thi\u1ebft k\u1ebf r\u01a1le tr\u1ea1ng th\u00e1i r\u1eafn AC c\u1ea5p c\u00f4ng nghi\u1ec7p nh\u1edd \u0111\u1ed9 b\u1ec1n cao v\u00e0 kh\u1ea3 n\u0103ng \u0111i\u1ec1u khi\u1ec3n t\u1ed1t.<\/p>\n\n\n\n
                    C\u00e1c ph\u01b0\u01a1ng ph\u00e1p k\u00edch ho\u1ea1t: SSR v\u01b0\u1ee3t ng\u01b0\u1ee1ng zero so v\u1edbi SSR b\u1eadt ng\u1eabu nhi\u00ean<\/h2>\n\n\n\n
                      \n
                    1. SSR k\u00edch ho\u1ea1t t\u1ea1i \u0111i\u1ec3m giao c\u1eaft \u0111\u01b0\u1eddng zero<\/li>\n<\/ol>\n\n\n\n
                      C\u00e1c SSR n\u00e0y ch\u1edd cho \u0111\u1ebfn khi d\u1ea1ng s\u00f3ng xoay chi\u1ec1u \u0111\u1ea1t \u0111\u1ebfn \u0111i\u1ec3m gi\u1eefa c\u1ee7a \u0111\u01b0\u1eddng cong sin (t\u1eeb \u0111\u1ec9nh \u0111\u1ebfn \u0111i\u1ec3m 0 V) tr\u01b0\u1edbc khi chuy\u1ec3n m\u1ea1ch. \u0110i\u1ec1u n\u00e0y gi\u00fap gi\u1ea3m nhi\u1ec5u \u0111i\u1ec7n t\u1eeb (EMI) v\u00e0 c\u00e1c \u0111\u1ec9nh d\u00f2ng \u0111i\u1ec7n \u0111\u1ed9t ng\u1ed9t, \u0111\u1ed3ng th\u1eddi r\u1ea5t ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c t\u1ea3i thu\u1ea7n \u0111i\u1ec7n tr\u1edf nh\u01b0 l\u00f2 s\u01b0\u1edfi ho\u1eb7c \u0111\u00e8n s\u1ee3i \u0111\u1ed1t. Ngo\u00e0i ra, ph\u01b0\u01a1ng ph\u00e1p n\u00e0y c\u00f2n gi\u00fap gi\u1ea3m t\u1ea3i cho c\u1ea3 t\u1ea3i l\u1eabn thi\u1ebft b\u1ecb chuy\u1ec3n m\u1ea1ch.<\/p>\n\n\n\n
                        \n
                      1. SSR k\u00edch ho\u1ea1t ng\u1eabu nhi\u00ean<\/li>\n<\/ol>\n\n\n\n
                        C\u00e1c SSR n\u00e0y \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 s\u1eed d\u1ee5ng trong c\u00e1c \u1ee9ng d\u1ee5ng y\u00eau c\u1ea7u ph\u1ea3n \u1ee9ng nhanh v\u00e0 s\u1ebd chuy\u1ec3n m\u1ea1ch ngay khi nh\u1eadn \u0111\u01b0\u1ee3c t\u00edn hi\u1ec7u \u0111\u1ea7u v\u00e0o, b\u1ea5t k\u1ec3 pha AC l\u00e0 g\u00ec. Ch\u00fang cho ph\u00e9p \u0111i\u1ec1u khi\u1ec3n th\u1eddi gian ch\u00ednh x\u00e1c h\u01a1n v\u00e0 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong \u0111i\u1ec1u khi\u1ec3n g\u00f3c pha, \u0111i\u1ec1u khi\u1ec3n \u0111\u1ed9ng c\u01a1 ho\u1eb7c c\u00e1c thi\u1ebft b\u1ecb c\u1ea7n k\u00edch ho\u1ea1t \u0111\u1ed3ng b\u1ed9.<\/p>\n\n\n\n
                        R\u01a1le tr\u1ea1ng th\u00e1i r\u1eafn DC: C\u1ea5u tr\u00fac MOSFET v\u00e0 IGBT<\/h2>\n\n\n\n
                        T\u00ednh n\u0103ng<\/td>MOSFET SSR<\/td>R\u01a1le b\u00e1n d\u1eabn IGBT<\/td><\/tr>
                        D\u1ea3i \u0111i\u1ec7n \u00e1p<\/td>T\u1ed1i \u0111a kho\u1ea3ng 200 V DC<\/td>200 V \u0111\u1ebfn 1.200 V+ DC<\/td><\/tr>
                        C\u00f4ng su\u1ea5t hi\u1ec7n t\u1ea1i<\/td>Trung b\u00ecnh<\/td>Cao<\/td><\/tr>
                        T\u1ed1c \u0111\u1ed9 chuy\u1ec3n m\u1ea1ch<\/td>R\u1ea5t nhanh<\/td>Trung b\u00ecnh<\/td><\/tr>
                        Hi\u1ec7u qu\u1ea3<\/td>Cao (RDS(on) th\u1ea5p)<\/td>T\u1ed1t (m\u1ee9c l\u1ed7 cao h\u01a1n m\u1ed9t ch\u00fat)<\/td><\/tr>
                        \u1ee8ng d\u1ee5ng<\/td>B\u1ed9 \u0111i\u1ec1u khi\u1ec3n \u0111\u1ed9ng c\u01a1 PWM, t\u1ea3i DC nh\u1ecf<\/td>Thi\u1ebft b\u1ecb h\u00e0n, b\u1ed9 bi\u1ebfn t\u1ea7n n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
                          \n
                        1. C\u1ea5u tr\u00fac MOSFET<\/li>\n<\/ol>\n\n\n\n
                          C\u00e1c r\u01a1le tr\u1ea1ng th\u00e1i r\u1eafn (SSR) s\u1eed d\u1ee5ng MOSFET cho \u0111i\u1ec7n \u00e1p v\u00e0 d\u00f2ng \u0111i\u1ec7n m\u1ed9t chi\u1ec1u (DC) t\u1eeb th\u1ea5p \u0111\u1ebfn trung b\u00ecnh \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i. Ch\u00fang ho\u1ea1t \u0111\u1ed9ng m\u00e1t m\u1ebb, nhanh ch\u00f3ng v\u00e0 c\u0169ng r\u1ea5t hi\u1ec7u qu\u1ea3. \u0110\u00e2y l\u00e0 m\u1ed9t l\u1ef1a ch\u1ecdn t\u1ed1t trong nh\u1eefng tr\u01b0\u1eddng h\u1ee3p m\u00e0 kh\u00f4ng gian l\u1eafp \u0111\u1eb7t v\u00e0 th\u1eddi gian ph\u1ea3n h\u1ed3i l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t.<\/p>\n\n\n\n
                            \n
                          1. C\u1ea5u tr\u00fac IGBT<\/li>\n<\/ol>\n\n\n\n
                            C\u00e1c b\u00f3ng b\u00e1n d\u1eabn l\u01b0\u1ee1ng c\u1ef1c c\u00f3 c\u1ed5ng c\u00e1ch ly (IGBT) k\u1ebft h\u1ee3p t\u1ed1c \u0111\u1ed9 chuy\u1ec3n m\u1ea1ch ph\u00f9 h\u1ee3p c\u1ee7a MOSFET v\u1edbi kh\u1ea3 n\u0103ng ch\u1ecbu d\u00f2ng \u0111i\u1ec7n cao c\u1ee7a b\u00f3ng b\u00e1n d\u1eabn l\u01b0\u1ee1ng c\u1ef1c. Ch\u00fang \u0111\u1eb7c bi\u1ec7t ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c m\u00e1y m\u00f3c c\u00f4ng nghi\u1ec7p \u0111\u00f2i h\u1ecfi kh\u1ea3 n\u0103ng x\u1eed l\u00fd kh\u1eafc nghi\u1ec7t, \u0111\u1eb7c bi\u1ec7t l\u00e0 \u0111i\u1ec7n \u00e1p m\u1ed9t chi\u1ec1u cao v\u00e0 d\u00f2ng \u0111i\u1ec7n \u1edf m\u1ee9c ampe.<\/p>\n\n\n\n
                            \"\"<\/figure>\n\n\n\n
                            Qu\u1ea3n l\u00fd nhi\u1ec7t: \u0110\u01b0\u1eddng cong gi\u1ea3m c\u00f4ng su\u1ea5t v\u00e0 thi\u1ebft k\u1ebf t\u1ea3n nhi\u1ec7t<\/h2>\n\n\n\n
                            T\u1ea5t c\u1ea3 c\u00e1c thi\u1ebft b\u1ecb b\u00e1n d\u1eabn \u0111\u1ec1u sinh nhi\u1ec7t, v\u00e0 SSR c\u0169ng kh\u00f4ng ph\u1ea3i l\u00e0 ngo\u1ea1i l\u1ec7. Nhi\u1ec7t \u0111\u1ed9 qu\u00e1 cao s\u1ebd d\u1eabn \u0111\u1ebfn vi\u1ec7c gi\u1ea3m kh\u1ea3 n\u0103ng ch\u1ecbu d\u00f2ng \u0111i\u1ec7n v\u00e0 cu\u1ed1i c\u00f9ng l\u00e0 h\u1ecfng h\u00f3c. \u0110\u01b0\u1eddng cong gi\u1ea3m \u0111\u1ecbnh m\u1ee9c \u0111\u01b0\u1ee3c n\u00eau trong h\u1ea7u h\u1ebft c\u00e1c b\u1ea3ng d\u1eef li\u1ec7u k\u1ef9 thu\u1eadt c\u1ee7a SSR cho th\u1ea5y m\u1ed1i quan h\u1ec7 gi\u1eefa nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng v\u00e0 d\u00f2ng \u0111i\u1ec7n \u0111\u1ea7u ra cho ph\u00e9p.<\/p>\n\n\n\n
                            V\u00ed d\u1ee5, m\u1ed9t r\u01a1le c\u00f3 \u0111\u1ecbnh m\u1ee9c 25A \u1edf 25\u00b0C c\u00f3 th\u1ec3 ch\u1ec9 ch\u1ecbu \u0111\u01b0\u1ee3c d\u00f2ng \u0111i\u1ec7n 15A \u1edf 60\u00b0C. \u0110\u1ec3 kh\u1eafc ph\u1ee5c \u0111i\u1ec1u n\u00e0y:<\/p>\n\n\n\n
                              \n
                            • S\u1eed d\u1ee5ng k\u00edch th\u01b0\u1edbc ph\u00f9 h\u1ee3p b\u1ed9 t\u1ea3n nhi\u1ec7t<\/strong><\/li>\n\n\n\n
                            • \u0110\u0103ng k\u00fd m\u1ee1 t\u1ea3n nhi\u1ec7t<\/strong> \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o b\u1ec1 m\u1eb7t ti\u1ebfp x\u00fac ho\u00e0n to\u00e0n<\/li>\n\n\n\n
                            • L\u1eafp \u0111\u1eb7t c\u00e1c r\u01a1le SSR sao cho c\u00f3 kho\u1ea3ng tr\u1ed1ng theo chi\u1ec1u d\u1ecdc \u0111\u1ec3 l\u01b0u l\u01b0\u1ee3ng kh\u00f4ng kh\u00ed<\/strong><\/li>\n<\/ul>\n\n\n\n
                              B\u1ed9 nh\u1edb tr\u1ea1ng th\u00e1i r\u1eafn ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o? <\/strong>R\u01a1le<\/strong> C\u00f4ng vi\u1ec7c: T\u1ed5ng quan to\u00e0n di\u1ec7n v\u1ec1 nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng<\/strong><\/h2>\n\n\n\n
                              H\u00e3y ph\u00e2n t\u00edch m\u1ed9t c\u00e1ch \u0111\u01a1n gi\u1ea3n nh\u01b0 sau:<\/p>\n\n\n\n
                                \n
                              1. Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt \u0111\u1ea7u v\u00e0o<\/strong> T\u00edn hi\u1ec7u<\/strong>: M\u1ed9t \u0111i\u1ec7n \u00e1p \u0111i\u1ec1u khi\u1ec3n nh\u1ecf (v\u00ed d\u1ee5: 5V DC) \u0111\u01b0\u1ee3c c\u1ea5p v\u00e0o m\u1ea1ch \u0111\u1ea7u v\u00e0o c\u1ee7a SSR.<\/li>\n\n\n\n
                              2. LED<\/strong> K\u00edch ho\u1ea1t<\/strong>: D\u00f2ng \u0111i\u1ec7n l\u00e0m s\u00e1ng \u0111\u00e8n LED b\u00ean trong, t\u1eeb \u0111\u00f3 ph\u00e1t ra \u00e1nh s\u00e1ng h\u1ed3ng ngo\u1ea1i.<\/li>\n\n\n\n
                              3. C\u00e1ch ly quang h\u1ecdc<\/strong>: \u00c1nh s\u00e1ng n\u00e0y \u0111i qua m\u1ed9t khe c\u00e1ch ly v\u00e0 k\u00edch ho\u1ea1t m\u1ed9t phototransistor ho\u1eb7c thi\u1ebft b\u1ecb t\u01b0\u01a1ng t\u1ef1.<\/li>\n\n\n\n
                              4. K\u00edch ho\u1ea1t<\/strong>: Thi\u1ebft b\u1ecb c\u1ea3m quang ph\u00e1t ra m\u1ed9t t\u00edn hi\u1ec7u k\u00edch ho\u1ea1t c\u1ed5ng c\u1ee7a thi\u1ebft b\u1ecb chuy\u1ec3n m\u1ea1ch \u2014 c\u00f3 th\u1ec3 l\u00e0 TRIAC, SCR, MOSFET ho\u1eb7c IGBT.<\/li>\n\n\n\n
                              5. Chuy\u1ec3n m\u1ea1ch t\u1ea3i<\/strong>: Thi\u1ebft b\u1ecb chuy\u1ec3n m\u1ea1ch d\u1eabn \u0111i\u1ec7n, cho ph\u00e9p d\u00f2ng \u0111i\u1ec7n t\u1ea3i \u0111i qua c\u00e1c c\u1ef1c \u0111\u1ea7u ra \u0111\u1ebfn t\u1ea3i.<\/li>\n\n\n\n
                              6. T\u1eaft ngu\u1ed3n<\/strong>: Khi ng\u1eaft \u0111i\u1ec7n \u00e1p \u0111i\u1ec1u khi\u1ec3n, \u0111\u00e8n LED s\u1ebd t\u1eaft, c\u1ea3m bi\u1ebfn quang ng\u1eebng ho\u1ea1t \u0111\u1ed9ng v\u00e0 m\u1ea1ch \u0111\u1ea7u ra b\u1ecb ng\u1eaft.<\/li>\n<\/ol>\n\n\n\n
                                To\u00e0n b\u1ed9 qu\u00e1 tr\u00ecnh n\u00e0y di\u1ec5n ra trong v\u00f2ng v\u00e0i mili gi\u00e2y, m\u1ed9t c\u00e1ch th\u1ea7m l\u1eb7ng v\u00e0 kh\u00f4ng c\u1ea7n ti\u1ebfp x\u00fac tr\u1ef1c ti\u1ebfp, kh\u00e1c h\u1eb3n v\u1edbi c\u00e1c h\u1ec7 th\u1ed1ng h\u1ed3 s\u01a1 y t\u1ebf \u0111i\u1ec7n t\u1eed (EMR) truy\u1ec1n th\u1ed1ng. \u0110i\u1ec3m n\u1ed5i b\u1eadt c\u1ee7a n\u00f3 n\u1eb1m \u1edf t\u1ed1c \u0111\u1ed9, t\u00ednh an to\u00e0n v\u00e0 s\u1ef1 \u0111\u01a1n gi\u1ea3n.<\/p>\n\n\n\n
                                \u1ee8ng d\u1ee5ng: Nh\u1eefng \u01b0u \u0111i\u1ec3m c\u1ee5 th\u1ec3 v\u00e0 c\u00e1c ki\u1ec3u l\u1eafp \u0111\u1eb7t<\/h2>\n\n\n\n
                                So v\u1edbi r\u01a1le c\u01a1 kh\u00ed, vi\u1ec7c s\u1eed d\u1ee5ng r\u01a1le tr\u1ea1ng th\u00e1i r\u1eafn (SSR) mang l\u1ea1i m\u1ed9t s\u1ed1 l\u1ee3i \u00edch quan tr\u1ecdng. Ch\u00fang kh\u00f4ng c\u00f3 b\u1ed9 ph\u1eadn chuy\u1ec3n \u0111\u1ed9ng n\u00ean kh\u00f4ng g\u00e2y ti\u1ebfng \u1ed3n v\u00e0 kh\u00f4ng b\u1ecb m\u00e0i m\u00f2n ti\u1ebfp \u0111i\u1ec3m hay x\u00f3i m\u00f2n do hi\u1ec7n t\u01b0\u1ee3ng h\u1ed3 quang, nh\u1edd \u0111\u00f3 c\u00f3 tu\u1ed5i th\u1ecd cao h\u01a1n nhi\u1ec1u. Ch\u00fang ph\u00f9 h\u1ee3p cho c\u00e1c thao t\u00e1c b\u1eadt\/t\u1eaft t\u1ea7n s\u1ed1 cao v\u1edbi kh\u1ea3 n\u0103ng chuy\u1ec3n m\u1ea1ch c\u1ef1c nhanh; t\u00ednh n\u0103ng c\u00e1ch ly \u0111i\u1ec7n t\u00edch h\u1ee3p kh\u00f4ng ch\u1ec9 t\u0103ng c\u01b0\u1eddng an to\u00e0n cho h\u1ec7 th\u1ed1ng m\u00e0 c\u00f2n ng\u0103n ng\u1eeba c\u00e1c v\u1ea5n \u0111\u1ec1 li\u00ean quan \u0111\u1ebfn v\u00f2ng l\u1eb7p \u0111\u1ea5t. Ngo\u00e0i ra, ch\u00fang kh\u00f4ng d\u1ec5 b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi va \u0111\u1eadp hay rung \u0111\u1ed9ng, do \u0111\u00f3 \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c m\u00f4i tr\u01b0\u1eddng c\u00f4ng nghi\u1ec7p ho\u1eb7c \u00f4 t\u00f4 kh\u1eafc nghi\u1ec7t.<\/p>\n\n\n\n
                                C\u00e1c ki\u1ec3u l\u1eafp \u0111\u1eb7t<\/h3>\n\n\n\n
                                C\u00e1c SSR kh\u00e1c nhau c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t theo c\u00e1c ki\u1ec3u kh\u00e1c nhau \u0111\u1ec3 ph\u00f9 h\u1ee3p v\u1edbi y\u00eau c\u1ea7u thi\u1ebft k\u1ebf. Ki\u1ec3u l\u1eafp tr\u00ean thanh DIN ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong t\u1ee7 \u0111i\u1ec1u khi\u1ec3n \u0111\u1ec3 d\u1ec5 d\u00e0ng l\u1eafp \u0111\u1eb7t. Ki\u1ec3u l\u1eafp tr\u00ean b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n cho ph\u00e9p cung c\u1ea5p c\u00f4ng su\u1ea5t cao h\u01a1n v\u00e0 c\u00f3 \u0111\u1ed9 ch\u1eafc ch\u1eafn cao. Ki\u1ec3u l\u1eafp tr\u00ean b\u1ea3ng m\u1ea1ch in (PCB) cho c\u00e1c lo\u1ea1i m\u1ea1ch DIP ho\u1eb7c SIP (t\u1ee9c l\u00e0 DIP ho\u1eb7c SIP do ng\u01b0\u1eddi d\u00f9ng l\u1ef1a ch\u1ecdn) r\u1ea5t ph\u00f9 h\u1ee3p v\u1edbi c\u1ea3 c\u00e1c h\u1ec7 th\u1ed1ng nh\u00fang nh\u1ecf l\u1eabn c\u00e1c h\u1ec7 th\u1ed1ng l\u1edbn h\u01a1n.<\/p>\n\n\n\n
                                \u1ee8ng d\u1ee5ng trong th\u1ef1c t\u1ebf<\/h3>\n\n\n\n
                                C\u00e1c SSR \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong thi\u1ebft b\u1ecb y t\u1ebf (ch\u1eb3ng h\u1ea1n nh\u01b0 m\u00e1y MRI v\u00e0 h\u1ec7 th\u1ed1ng t\u1ef1 \u0111\u1ed9ng h\u00f3a ph\u00f2ng th\u00ed nghi\u1ec7m) trong c\u00e1c \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf, n\u01a1i m\u1ee9c nhi\u1ec5u \u0111i\u1ec7n t\u1eeb (EMI) th\u1ea5p v\u00e0 ho\u1ea1t \u0111\u1ed9ng \u00eam \u00e1i l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t. Ch\u00fang \u0111i\u1ec1u khi\u1ec3n c\u00e1c h\u1ec7 th\u1ed1ng b\u0103ng t\u1ea3i, b\u1ed9 gia nhi\u1ec7t v\u00e0 \u0111\u1ed9ng c\u01a1 trong c\u00e1c \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p. Ch\u00fang c\u00f2n \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng trong b\u1ed9 s\u1ea1c pin, h\u1ec7 th\u1ed1ng chi\u1ebfu s\u00e1ng v\u00e0 \u1ed5 c\u1eafm th\u00f4ng minh trong l\u0129nh v\u1ef1c \u0111i\u1ec7n t\u1eed ti\u00eau d\u00f9ng.<\/p>\n\n\n\n
                                SSR ng\u00e0y c\u00e0ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i \u0111\u1ec3 thay th\u1ebf c\u00e1c lo\u1ea1i r\u01a1le c\u01a1 kh\u00ed trong m\u1ecdi l\u0129nh v\u1ef1c c\u00f4ng nghi\u1ec7p nh\u1edd t\u00ednh an to\u00e0n, hi\u1ec7u qu\u1ea3 v\u1ec1 chi ph\u00ed, th\u00f4ng minh v\u00e0 \u0111\u00e1ng tin c\u1eady h\u01a1n, gi\u00fap t\u1ea1o ra c\u00e1c h\u1ec7 th\u1ed1ng \u0111i\u1ec7n an to\u00e0n, th\u00f4ng minh v\u00e0 \u0111\u00e1ng tin c\u1eady h\u01a1n nh\u1edd ho\u1ea1t \u0111\u1ed9ng \u00eam \u00e1i, c\u00e1ch ly \u0111i\u1ec7n v\u00e0 t\u1ed1c \u0111\u1ed9 cao.<\/p>\n\n\n\n
                                <\/p>","protected":false},"excerpt":{"rendered":"
                                Bi\u1ec3u t\u01b0\u1ee3ng r\u01a1le tr\u1ea1ng th\u00e1i r\u1eafn v\u00e0 bi\u1ec3u di\u1ec5n m\u1ea1ch \u0111i\u1ec7n C\u00e1c bi\u1ec3u t\u01b0\u1ee3ng trong ng\u00f4n ng\u1eef s\u01a1 \u0111\u1ed3 m\u1ea1ch \u0111i\u1ec7n kh\u00f4ng ph\u1ea3i l\u00e0 nh\u1eefng n\u00e9t v\u1ebd ng\u1eabu h\u1ee9ng tr\u00ean gi\u1ea5y \u2013 ch\u00fang \u0111\u01b0\u1ee3c t\u1ea1o ra d\u1ef1a tr\u00ean ch\u1ee9c n\u0103ng. Bi\u1ec3u t\u01b0\u1ee3ng c\u1ee7a r\u01a1le tr\u1ea1ng th\u00e1i r\u1eafn (SSR), ngay c\u1ea3 khi \u0111\u01b0\u1ee3c th\u1ec3 hi\u1ec7n d\u01b0\u1edbi d\u1ea1ng m\u1ed9t h\u00ecnh d\u1ea1ng \u0111\u01a1n gi\u1ea3n, c\u0169ng truy\u1ec1n t\u1ea3i m\u1ed9t l\u01b0\u1ee3ng kh\u00e1i ni\u1ec7m tr\u1eebu t\u01b0\u1ee3ng v\u1ec1 \u0111i\u1ec7n ch\u1ec9 trong m\u1ed9t c\u00e1i nh\u00ecn. Theo truy\u1ec1n th\u1ed1ng, m\u1ed9t SSR l\u00e0 [\u2026]<\/p>","protected":false},"author":4,"featured_media":7028,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_seopress_robots_primary_cat":"none","_seopress_titles_title":"","_seopress_titles_desc":"Uncover the solid state relay wiring diagram and gain insights on the solid state relay symbol and working principle in our comprehensive guide.","_seopress_robots_index":"","footnotes":""},"categories":[46],"tags":[],"class_list":["post-7020","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industrial-control"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.omch.com\/vi\/wp-json\/wp\/v2\/posts\/7020","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.omch.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.omch.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.omch.com\/vi\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.omch.com\/vi\/wp-json\/wp\/v2\/comments?post=7020"}],"version-history":[{"count":5,"href":"https:\/\/www.omch.com\/vi\/wp-json\/wp\/v2\/posts\/7020\/revisions"}],"predecessor-version":[{"id":8801,"href":"https:\/\/www.omch.com\/vi\/wp-json\/wp\/v2\/posts\/7020\/revisions\/8801"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.omch.com\/vi\/wp-json\/wp\/v2\/media\/7028"}],"wp:attachment":[{"href":"https:\/\/www.omch.com\/vi\/wp-json\/wp\/v2\/media?parent=7020"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.omch.com\/vi\/wp-json\/wp\/v2\/categories?post=7020"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.omch.com\/vi\/wp-json\/wp\/v2\/tags?post=7020"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}