{"id":2305,"date":"2026-09-01T23:52:02","date_gmt":"2026-09-01T16:52:02","guid":{"rendered":"https:\/\/yourapx.com\/?p=2305"},"modified":"2026-09-01T23:52:02","modified_gmt":"2026-09-01T16:52:02","slug":"photodiode","status":"publish","type":"post","link":"https:\/\/yourapx.com\/?p=2305","title":{"rendered":"Photodiode l\u00e0 g\u00ec? K\u00fd hi\u1ec7u, c\u00e1ch m\u1eafc, c\u00e1ch \u0111o v\u00e0 \u1ee9ng d\u1ee5ng"},"content":{"rendered":"

1. Photodiode l\u00e0 g\u00ec v\u00e0 c\u00f3 vai tr\u00f2 g\u00ec?<\/h2>\n

Photodiode bi\u1ebfn \u00e1nh s\u00e1ng th\u00e0nh d\u00f2ng \u0111i\u1ec7n. D\u00f2ng quang th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o b\u1ed9 chuy\u1ec3n \u0111\u1ed5i d\u00f2ng-\u0111i\u1ec7n \u00e1p thay v\u00ec s\u1eed d\u1ee5ng nh\u01b0 diode ch\u1ec9nh l\u01b0u.<\/p>\n

Ph\u1ea7n quan tr\u1ecdng nh\u1ea5t l\u00e0 x\u00e1c \u0111\u1ecbnh linh ki\u1ec7n n\u00e0y \u0111ang l\u00e0m nhi\u1ec7m v\u1ee5 g\u00ec trong kh\u1ed1i m\u1ea1ch tr\u01b0\u1edbc khi \u0111o ho\u1eb7c ch\u1ecdn linh ki\u1ec7n thay th\u1ebf.<\/p>\n

2. K\u00fd hi\u1ec7u Photodiode trong s\u01a1 \u0111\u1ed3 m\u1ea1ch \u0111i\u1ec7n<\/h2>\n

K\u00fd hi\u1ec7u photodiode l\u00e0 k\u00fd hi\u1ec7u diode c\u00f3 hai m\u0169i t\u00ean \u00e1nh s\u00e1ng h\u01b0\u1edbng v\u00e0o ti\u1ebfp gi\u00e1p; h\u01b0\u1edbng m\u0169i t\u00ean ph\u1ea3i ng\u01b0\u1ee3c v\u1edbi LED.<\/p>\n

Diode th\u01b0\u1eddng mang m\u00e3 D; LED \u0111\u00f4i khi mang m\u00e3 LED. S\u1ed1 th\u1ee9 t\u1ef1 D1, D2\u2026 cho bi\u1ebft t\u1eebng diode c\u1ee5 th\u1ec3 trong m\u1ea1ch.<\/p>\n

\"K\u00fd
K\u00fd hi\u1ec7u v\u00e0 quy \u01b0\u1edbc ch\u00e2n c\u1ee7a Photodiode trong s\u01a1 \u0111\u1ed3 m\u1ea1ch \u0111i\u1ec7n<\/figcaption><\/figure>\n

3. C\u1ea5u t\u1ea1o, h\u00ecnh d\u1ea1ng v\u00e0 ki\u1ec3u \u0111\u00f3ng g\u00f3i<\/h2>\n

Ti\u1ebfp gi\u00e1p b\u00e1n d\u1eabn t\u1ea1o \u0111\u1eb7c tuy\u1ebfn d\u00f2ng\u2013\u00e1p phi tuy\u1ebfn. V\u1eadt li\u1ec7u v\u00e0 c\u1ea5u tr\u00fac chip quy\u1ebft \u0111\u1ecbnh \u0111i\u1ec7n \u00e1p thu\u1eadn, d\u00f2ng r\u00f2, t\u1ed1c \u0111\u1ed9 v\u00e0 kh\u1ea3 n\u0103ng ch\u1ecbu xung.<\/p>\n

Nh\u1eefng ki\u1ec3u v\u1ecf v\u00e0 ki\u1ec3u l\u1eafp th\u01b0\u1eddng g\u1eb7p g\u1ed3m:<\/p>\n

    \n
  • DO-35\/DO-41 xuy\u00ean l\u1ed7<\/li>\n
  • SOD-123, SOD-323, SMA, SMB, SMC<\/li>\n
  • LED xuy\u00ean l\u1ed7 v\u00e0 LED SMD<\/li>\n
  • Package c\u00f4ng su\u1ea5t TO-220 ho\u1eb7c module<\/li>\n<\/ul>\n
    \"Photodiode
    \u1ea2nh th\u1ef1c t\u1ebf 1 c\u1ee7a Photodiode d\u00f9ng \u0111\u1ec3 nh\u1eadn bi\u1ebft h\u00ecnh d\u1ea1ng t\u1ed5ng th\u1ec3.<\/figcaption><\/figure>\n

    4. C\u00e1c ch\u1ee7ng lo\u1ea1i ph\u1ed5 bi\u1ebfn<\/h2>\n

    M\u1ed7i ch\u1ee7ng lo\u1ea1i c\u00f3 \u01b0u \u0111i\u1ec3m, gi\u1edbi h\u1ea1n v\u00e0 m\u00f4i tr\u01b0\u1eddng s\u1eed d\u1ee5ng kh\u00e1c nhau; kh\u00f4ng n\u00ean thay l\u1eabn ch\u1ec9 v\u00ec c\u00f3 h\u00ecnh d\u1ea1ng g\u1ea7n gi\u1ed1ng.<\/p>\n

      \n
    • Photodiode PIN<\/li>\n
    • Photodiode avalanche<\/li>\n
    • Photodiode di\u1ec7n t\u00edch l\u1edbn<\/li>\n
    • M\u1ea3ng photodiode<\/li>\n<\/ul>\n
      \"Photodiode
      \u1ea2nh th\u1ef1c t\u1ebf 2 c\u1ee7a Photodiode d\u00f9ng \u0111\u1ec3 quan s\u00e1t chi ti\u1ebft tr\u00ean linh ki\u1ec7n ho\u1eb7c bo m\u1ea1ch.<\/figcaption><\/figure>\n

      5. C\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u1ea7n hi\u1ec3u<\/h2>\n
        \n
      • \u0110i\u1ec7n \u00e1p thu\u1eadn v\u00e0 d\u00f2ng thu\u1eadn:<\/strong> x\u00e1c \u0111\u1ecbnh v\u00f9ng l\u00e0m vi\u1ec7c an to\u00e0n; c\u1ea7n ph\u00e2n bi\u1ec7t tr\u1ecb s\u1ed1 l\u00e0m vi\u1ec7c li\u00ean t\u1ee5c v\u1edbi gi\u1edbi h\u1ea1n tuy\u1ec7t \u0111\u1ed1i.<\/li>\n
      • \u0110i\u1ec7n \u00e1p ng\u01b0\u1ee3c:<\/strong> l\u00e0 gi\u1edbi h\u1ea1n \u0111i\u1ec7n \u00e1p ph\u00f9 h\u1ee3p v\u1edbi c\u00e1ch \u0111i\u1ec7n v\u00e0 ch\u1ebf \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng c\u1ee7a linh ki\u1ec7n.<\/li>\n
      • D\u00f2ng r\u00f2:<\/strong> l\u00e0 d\u00f2ng \u0111i\u1ec7n linh ki\u1ec7n c\u00f3 th\u1ec3 mang ho\u1eb7c \u0111i\u1ec1u khi\u1ec3n trong \u0111i\u1ec1u ki\u1ec7n nhi\u1ec7t \u0111\u00e3 n\u00eau.<\/li>\n
      • C\u00f4ng su\u1ea5t:<\/strong> x\u00e1c \u0111\u1ecbnh l\u01b0\u1ee3ng nhi\u1ec7t linh ki\u1ec7n c\u00f3 th\u1ec3 ch\u1ecbu trong \u0111i\u1ec1u ki\u1ec7n quy \u0111\u1ecbnh m\u00e0 kh\u00f4ng b\u1ecb qu\u00e1 nhi\u1ec7t.<\/li>\n
      • Th\u1eddi gian ph\u1ee5c h\u1ed3i ho\u1eb7c \u0111i\u1ec7n dung:<\/strong> c\u1ea7n \u0111\u01b0\u1ee3c \u0111\u1ecdc c\u00f9ng \u0111\u01a1n v\u1ecb, \u0111i\u1ec1u ki\u1ec7n \u0111o v\u00e0 gi\u1edbi h\u1ea1n do nh\u00e0 s\u1ea3n xu\u1ea5t c\u00f4ng b\u1ed1.<\/li>\n
      • N\u0103ng l\u01b0\u1ee3ng xung n\u1ebfu l\u00e0 TVS:<\/strong> cho bi\u1ebft linh ki\u1ec7n ch\u1ecbu \u0111\u01b0\u1ee3c bi\u00ean \u0111\u1ed9 v\u00e0 n\u0103ng l\u01b0\u1ee3ng xung trong kho\u1ea3ng th\u1eddi gian quy \u0111\u1ecbnh.<\/li>\n<\/ul>\n
        \"Photodiode
        \u1ea2nh th\u1ef1c t\u1ebf 3 c\u1ee7a Photodiode d\u00f9ng \u0111\u1ec3 quan s\u00e1t chi ti\u1ebft tr\u00ean linh ki\u1ec7n ho\u1eb7c bo m\u1ea1ch.<\/figcaption><\/figure>\n

        6. C\u00f4ng th\u1ee9c to\u00e1n h\u1ecdc v\u00e0 v\u1eadt l\u00fd<\/h2>\n

        C\u00e1c c\u00f4ng th\u1ee9c d\u01b0\u1edbi \u0111\u00e2y m\u00f4 t\u1ea3 quan h\u1ec7 gi\u1eefa nh\u1eefng \u0111\u1ea1i l\u01b0\u1ee3ng quan tr\u1ecdng c\u1ee7a linh ki\u1ec7n. U l\u00e0 \u0111i\u1ec7n \u00e1p, I l\u00e0 d\u00f2ng \u0111i\u1ec7n, R l\u00e0 \u0111i\u1ec7n tr\u1edf, P l\u00e0 c\u00f4ng su\u1ea5t, E ho\u1eb7c W l\u00e0 n\u0103ng l\u01b0\u1ee3ng, f l\u00e0 t\u1ea7n s\u1ed1 v\u00e0 t l\u00e0 th\u1eddi gian; \u0111\u01a1n v\u1ecb l\u1ea7n l\u01b0\u1ee3t l\u00e0 V, A, \u03a9, W, J, Hz v\u00e0 s.<\/p>\n

        \n
        C\u00f4ng th\u1ee9c 1<\/figcaption>
        P \u2248 UF<\/sub> \u00d7 IF<\/sub><\/div>\n<\/figure>\n
        C\u00f4ng th\u1ee9c 2:<\/strong> D\u00f2ng ph\u1ea3i \u0111\u01b0\u1ee3c gi\u1edbi h\u1ea1n theo m\u1ea1ch<\/div>\n
        N\u0103ng l\u01b0\u1ee3ng xung<\/figcaption>
        E = \u222bu(t)i(t)dt<\/div>\n<\/figure>\n<\/div>\n

        K\u00fd hi\u1ec7u c\u00f3 ch\u1ec9 s\u1ed1 d\u01b0\u1edbi d\u00f9ng \u0111\u1ec3 ch\u1ec9 \u0111\u00fang v\u1ecb tr\u00ed ho\u1eb7c tr\u1ea1ng th\u00e1i \u0111o, ch\u1eb3ng h\u1ea1n Ura<\/sub> l\u00e0 \u0111i\u1ec7n \u00e1p \u0111\u1ea7u ra v\u00e0 Ushunt<\/sub> l\u00e0 \u0111i\u1ec7n \u00e1p tr\u00ean \u0111i\u1ec7n tr\u1edf shunt. V\u1edbi k\u00fd hi\u1ec7u ri\u00eang c\u1ee7a t\u1eebng h\u1ecd linh ki\u1ec7n, c\u1ea7n \u0111\u1ecdc \u0111\u1ecbnh ngh\u0129a ngay trong datasheet.<\/p>\n

        C\u00f4ng th\u1ee9c l\u00fd t\u01b0\u1edfng ch\u1ec9 \u0111\u00fang trong \u0111i\u1ec1u ki\u1ec7n \u0111\u00e3 n\u00eau. Khi ch\u1ecdn linh ki\u1ec7n th\u1eadt ph\u1ea3i t\u00ednh th\u00eam dung sai, nhi\u1ec7t \u0111\u1ed9, t\u1ea7n s\u1ed1, t\u1ea3i v\u00e0 gi\u1edbi h\u1ea1n trong datasheet.<\/p>\n

        \"Photodiode
        \u1ea2nh th\u1ef1c t\u1ebf 4 c\u1ee7a Photodiode d\u00f9ng \u0111\u1ec3 quan s\u00e1t chi ti\u1ebft tr\u00ean linh ki\u1ec7n ho\u1eb7c bo m\u1ea1ch.<\/figcaption><\/figure>\n

        7. C\u00e1c c\u00e1ch m\u1eafc Photodiode trong m\u1ea1ch \u0111i\u1ec7n t\u1eed<\/h2>\n

        C\u00e1c c\u00e1ch m\u1eafc \u0111\u01b0\u1ee3c s\u1eafp x\u1ebfp t\u1eeb d\u1ec5 nh\u1eadn bi\u1ebft \u0111\u1ebfn \u1ee9ng d\u1ee5ng n\u00e2ng cao. \u1ede m\u1ed7i s\u01a1 \u0111\u1ed3, h\u00e3y theo d\u00f5i \u0111i\u1ec3m n\u1ed1i ngu\u1ed3n, mass, \u0111\u1ea7u v\u00e0o, \u0111\u1ea7u ra v\u00e0 chi\u1ec1u d\u00f2ng \u0111i\u1ec7n tr\u01b0\u1edbc khi t\u00ednh to\u00e1n.<\/p>\n

        \n
        \n

        C\u00e1c c\u00e1ch m\u1eafc th\u01b0\u1eddng d\u00f9ng<\/h3>\n

        1. M\u1eafc photodiode v\u1edbi b\u1ed9 chuy\u1ec3n \u0111\u1ed5i d\u00f2ng-\u0111i\u1ec7n \u00e1p I\/V<\/h4>\n

        Nguy\u00ean l\u00fd:<\/strong> Photodiode n\u1ed1i v\u00e0o n\u00fat t\u1ed5ng c\u1ee7a op-amp; \u0111i\u1ec7n tr\u1edf h\u1ed3i ti\u1ebfp bi\u1ebfn d\u00f2ng quang th\u00e0nh \u0111i\u1ec7n \u00e1p v\u00e0 gi\u1eef \u0111i\u1ec7n \u00e1p tr\u00ean diode theo m\u1ee9c tham chi\u1ebfu.<\/p>\n

        \"S\u01a1
        S\u01a1 \u0111\u1ed3 c\u00e1ch m\u1eafc 1: M\u1eafc photodiode ph\u00e2n c\u1ef1c ng\u01b0\u1ee3c \u1edf ch\u1ebf \u0111\u1ed9 quang d\u1eabn \u2013 Photodiode \u0111\u01b0\u1ee3c ph\u00e2n c\u1ef1c ng\u01b0\u1ee3c trong gi\u1edbi h\u1ea1n datasheet \u0111\u1ec3 gi\u1ea3m \u0111i\u1ec7n dung ti\u1ebfp gi\u00e1p v\u00e0 t\u0103ng t\u1ed1c \u0111\u1ed9; d\u00f2ng quang \u0111\u01b0\u1ee3c \u0111o b\u1eb1ng m\u1ea1ch khu\u1ebfch \u0111\u1ea1i ph\u00f9 h\u1ee3p.<\/figcaption><\/figure>\n

        2. M\u1eafc photodiode ph\u00e2n c\u1ef1c ng\u01b0\u1ee3c \u1edf ch\u1ebf \u0111\u1ed9 quang d\u1eabn<\/h4>\n

        Nguy\u00ean l\u00fd:<\/strong> Photodiode \u0111\u01b0\u1ee3c ph\u00e2n c\u1ef1c ng\u01b0\u1ee3c trong gi\u1edbi h\u1ea1n datasheet \u0111\u1ec3 gi\u1ea3m \u0111i\u1ec7n dung ti\u1ebfp gi\u00e1p v\u00e0 t\u0103ng t\u1ed1c \u0111\u1ed9; d\u00f2ng quang \u0111\u01b0\u1ee3c \u0111o b\u1eb1ng m\u1ea1ch khu\u1ebfch \u0111\u1ea1i ph\u00f9 h\u1ee3p.<\/p>\n<\/section>\n<\/div>\n

        8. V\u00ed d\u1ee5 t\u00ednh to\u00e1n v\u00e0 \u1ee9ng d\u1ee5ng<\/h2>\n

        Diode ch\u1ec9nh l\u01b0u mang 1 A v\u1edbi s\u1ee5t \u00e1p 0,8 V t\u1ed5n hao x\u1ea5p x\u1ec9 0,8 W; c\u1ea7n ki\u1ec3m tra nhi\u1ec7t tr\u1edf v\u00e0 \u0111i\u1ec1u ki\u1ec7n t\u1ea3n nhi\u1ec7t.<\/p>\n

        \"H\u00ecnh
        H\u00ecnh k\u1ef9 thu\u1eadt tham kh\u1ea3o 1: H\u00ecnh k\u1ef9 thu\u1eadt tham kh\u1ea3o v\u1ec1 Photodiode. Ngu\u1ed3n: Understanding Data Communications, trang 804.<\/figcaption><\/figure>\n
        \"H\u00ecnh
        H\u00ecnh k\u1ef9 thu\u1eadt tham kh\u1ea3o 2: H\u00ecnh k\u1ef9 thu\u1eadt tham kh\u1ea3o v\u1ec1 Photodiode. Ngu\u1ed3n: Wireless.Optical.Communication.Systems.Springer.Verlag.Telos.Sep.2004.ISBN0387227849, trang 36.<\/figcaption><\/figure>\n
        \"Photodiode
        \u1ea2nh th\u1ef1c t\u1ebf 5 c\u1ee7a Photodiode d\u00f9ng \u0111\u1ec3 quan s\u00e1t chi ti\u1ebft tr\u00ean linh ki\u1ec7n ho\u1eb7c bo m\u1ea1ch.<\/figcaption><\/figure>\n

        9. C\u00e1ch \u0111\u1ecdc m\u00e3 v\u00e0 datasheet<\/h2>\n

        \u0110\u1ecdc VF theo d\u00f2ng, VRRM, d\u00f2ng r\u00f2, th\u1eddi gian ph\u1ee5c h\u1ed3i\/\u0111i\u1ec7n dung, nhi\u1ec7t tr\u1edf; v\u1edbi TVS \u0111\u1ecdc VRWM, VBR, VC v\u00e0 c\u00f4ng su\u1ea5t xung.<\/p>\n

        H\u00e3y ph\u00e2n bi\u1ec7t th\u00f4ng s\u1ed1 l\u00e0m vi\u1ec7c khuy\u1ebfn ngh\u1ecb v\u1edbi gi\u1edbi h\u1ea1n tuy\u1ec7t \u0111\u1ed1i. Gi\u1edbi h\u1ea1n tuy\u1ec7t \u0111\u1ed1i kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ee9c n\u00ean duy tr\u00ec trong qu\u00e1 tr\u00ecnh v\u1eadn h\u00e0nh.<\/p>\n

        \"Photodiode
        \u1ea2nh th\u1ef1c t\u1ebf 6 c\u1ee7a Photodiode d\u00f9ng \u0111\u1ec3 quan s\u00e1t chi ti\u1ebft tr\u00ean linh ki\u1ec7n ho\u1eb7c bo m\u1ea1ch.<\/figcaption><\/figure>\n

        10. C\u00e1ch \u0111o v\u00e0 ki\u1ec3m tra tr\u00ean bo m\u1ea1ch<\/h2>\n
          \n
        1. Ng\u1eaft ngu\u1ed3n v\u00e0 d\u00f9ng thang diode<\/li>\n
        2. \u0110o thu\u1eadn cho m\u1ed9t gi\u00e1 tr\u1ecb s\u1ee5t \u00e1p, \u0111o ng\u01b0\u1ee3c th\u01b0\u1eddng b\u00e1o h\u1edf; gi\u00e1 tr\u1ecb ph\u1ee5 thu\u1ed9c lo\u1ea1i<\/li>\n
        3. Nh\u1ea5c m\u1ed9t ch\u00e2n n\u1ebfu c\u00e1c nh\u00e1nh song song l\u00e0m sai k\u1ebft qu\u1ea3<\/li>\n
        4. Kh\u00f4ng d\u00f9ng ph\u00e9p \u0111o t\u0129nh \u0111\u1ec3 k\u1ebft lu\u1eadn \u0111\u1ea7y \u0111\u1ee7 kh\u1ea3 n\u0103ng ch\u1ecbu \u00e1p\/xung<\/li>\n<\/ol>\n

          Khi \u0111o tr\u1ef1c ti\u1ebfp tr\u00ean bo, c\u00e1c linh ki\u1ec7n n\u1ed1i v\u1edbi c\u00f9ng n\u00fat m\u1ea1ch c\u00f3 th\u1ec3 l\u00e0m k\u1ebft qu\u1ea3 kh\u00e1c tr\u1ecb s\u1ed1 ri\u00eang c\u1ee7a linh ki\u1ec7n. N\u1ebfu c\u1ea7n \u0111o \u0111\u1ed9c l\u1eadp, ch\u1ec9 th\u00e1o m\u1ed9t \u0111\u1ea7u ho\u1eb7c ch\u00e2n \u0111o ph\u00f9 h\u1ee3p sau khi \u0111\u00e3 ng\u1eaft ngu\u1ed3n v\u00e0 x\u1ea3 h\u1ebft \u0111i\u1ec7n t\u00edch.<\/p>\n

          11. D\u1ea1ng h\u01b0 h\u1ecfng v\u00e0 nguy\u00ean nh\u00e2n<\/h2>\n

          D\u1ea5u hi\u1ec7u c\u00f3 th\u1ec3 quan s\u00e1t ho\u1eb7c \u0111o \u0111\u01b0\u1ee3c<\/h3>\n
            \n
          • Ch\u1eadp hai chi\u1ec1u<\/li>\n
          • \u0110\u1ee9t<\/li>\n
          • R\u00f2 ng\u01b0\u1ee3c t\u0103ng<\/li>\n
          • \u0110i\u1ec7n \u00e1p thu\u1eadn t\u0103ng<\/li>\n
          • M\u1ea5t kh\u1ea3 n\u0103ng k\u1eb9p ho\u1eb7c ph\u00e1t s\u00e1ng<\/li>\n<\/ul>\n

            Nh\u1eefng nguy\u00ean nh\u00e2n c\u1ea7n ki\u1ec3m tra<\/h3>\n
              \n
            • Qu\u00e1 d\u00f2ng<\/li>\n
            • Qu\u00e1 \u00e1p ng\u01b0\u1ee3c<\/li>\n
            • Xung v\u01b0\u1ee3t n\u0103ng l\u01b0\u1ee3ng<\/li>\n
            • Qu\u00e1 nhi\u1ec7t<\/li>\n
            • L\u1eafp sai c\u1ef1c<\/li>\n<\/ul>\n

              M\u1ed9t d\u1ea5u hi\u1ec7u c\u00f3 th\u1ec3 xu\u1ea5t ph\u00e1t t\u1eeb nhi\u1ec1u nguy\u00ean nh\u00e2n. Ch\u1ec9 k\u1ebft lu\u1eadn linh ki\u1ec7n h\u1ecfng sau khi k\u1ebft h\u1ee3p k\u1ebft qu\u1ea3 \u0111o, s\u01a1 \u0111\u1ed3 m\u1ea1ch v\u00e0 \u0111i\u1ec1u ki\u1ec7n v\u1eadn h\u00e0nh.<\/p>\n

              12. C\u00e1ch l\u1ef1a ch\u1ecdn linh ki\u1ec7n thay th\u1ebf<\/h2>\n
                \n
              • \u0110\u00fang lo\u1ea1i v\u00e0 c\u1ef1c t\u00ednh<\/li>\n
              • \u0110i\u1ec7n \u00e1p ng\u01b0\u1ee3c, d\u00f2ng v\u00e0 c\u00f4ng su\u1ea5t ph\u00f9 h\u1ee3p<\/li>\n
              • T\u1ed1c \u0111\u1ed9\/\u0111i\u1ec7n dung ph\u00f9 h\u1ee3p t\u1ea7n s\u1ed1<\/li>\n
              • TVS ph\u1ea3i \u0111\u00fang \u0111i\u1ec7n \u00e1p standoff v\u00e0 m\u1ee9c k\u1eb9p<\/li>\n
              • \u0110\u00fang package<\/li>\n<\/ul>\n

                13. C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n

                C\u00f3 th\u1ec3 \u0111o Photodiode tr\u1ef1c ti\u1ebfp tr\u00ean bo m\u1ea1ch kh\u00f4ng?<\/h3>\n

                C\u00f3 th\u1ec3 ki\u1ec3m tra s\u01a1 b\u1ed9 sau khi \u0111\u00e3 ng\u1eaft ngu\u1ed3n v\u00e0 x\u1ea3 \u0111i\u1ec7n t\u00edch. Tuy nhi\u00ean, nh\u1eefng nh\u00e1nh m\u1ea1ch n\u1ed1i song song ho\u1eb7c linh ki\u1ec7n b\u1ea3o v\u1ec7 c\u00f3 th\u1ec3 l\u00e0m sai k\u1ebft qu\u1ea3; khi c\u1ea7n \u0111o \u0111\u1ed9c l\u1eadp ph\u1ea3i t\u00e1ch ch\u00e2n ph\u00f9 h\u1ee3p v\u00e0 \u0111\u1ed1i chi\u1ebfu s\u01a1 \u0111\u1ed3.<\/p>\n

                C\u00f3 th\u1ec3 d\u00f9ng linh ki\u1ec7n c\u00f3 th\u00f4ng s\u1ed1 cao h\u01a1n \u0111\u1ec3 thay th\u1ebf kh\u00f4ng?<\/h3>\n

                Tr\u01b0\u1edbc h\u1ebft, linh ki\u1ec7n thay th\u1ebf ph\u1ea3i \u0111\u00fang ch\u1ee9c n\u0103ng v\u00e0 tr\u1ecb s\u1ed1 ch\u00ednh. M\u1ed9t s\u1ed1 gi\u1edbi h\u1ea1n nh\u01b0 c\u00f4ng su\u1ea5t ho\u1eb7c \u0111i\u1ec7n \u00e1p c\u00f3 th\u1ec3 ch\u1ecdn cao h\u01a1n, nh\u01b0ng k\u00edch th\u01b0\u1edbc, \u0111\u1eb7c t\u00ednh xung, t\u1ea7n s\u1ed1 v\u00e0 nhi\u1ec7t v\u1eabn ph\u1ea3i ph\u00f9 h\u1ee3p. V\u1edbi linh ki\u1ec7n nhi\u1ec1u ch\u00e2n, s\u01a1 \u0111\u1ed3 ch\u00e2n b\u1eaft bu\u1ed9c ph\u1ea3i t\u01b0\u01a1ng th\u00edch.<\/p>\n

                \n

                T\u00e0i li\u1ec7u tham kh\u1ea3o<\/h2>\n

                C\u00e1c t\u00e0i li\u1ec7u d\u01b0\u1edbi \u0111\u00e2y \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 \u0111\u1ed1i chi\u1ebfu k\u00fd hi\u1ec7u, nguy\u00ean l\u00fd, th\u00f4ng s\u1ed1 v\u00e0 ph\u01b0\u01a1ng ph\u00e1p \u0111o ki\u1ec3m c\u1ee7a linh ki\u1ec7n.<\/p>\n

                  \n
                1. [1] Practical Electronics for Inventors<\/strong> \u2014 trang 222.<\/li>\n
                2. [2] Electronics for Hobbyists 3<\/strong> \u2014 trang 58, trang 76.<\/li>\n
                3. [3] Telecom Dictionary<\/strong> \u2014 7859final\\LiB0093.html, 7859final\\LiB0019.html.<\/li>\n
                4. [4] Fiber to the Home The New Empowerment Wiley Interscience Oct.2005 eBook-LinG<\/strong> \u2014 trang 103.<\/li>\n
                5. [5] Fiber Optic Sensors<\/strong> \u2014 trang 142.<\/li>\n
                6. [6] Photodetection and Measurement – Maximizing Performance in Optical Systems<\/strong> \u2014 trang 35.<\/li>\n<\/ol>\n<\/section>\n

                  14. K\u1ebft lu\u1eadn<\/h2>\n

                  Mu\u1ed1n s\u1eed d\u1ee5ng linh ki\u1ec7n n\u00e0y \u0111\u00fang c\u00e1ch, ng\u01b0\u1eddi \u0111\u1ecdc c\u1ea7n nh\u1eadn d\u1ea1ng \u0111\u00fang lo\u1ea1i, hi\u1ec3u k\u00fd hi\u1ec7u v\u00e0 \u0111\u01b0\u1eddng k\u1ebft n\u1ed1i, t\u00ednh \u0111\u01b0\u1ee3c \u0111i\u1ec1u ki\u1ec7n l\u00e0m vi\u1ec7c, \u0111o ki\u1ec3m an to\u00e0n v\u00e0 \u0111\u1ed1i chi\u1ebfu datasheet tr\u01b0\u1edbc khi thay th\u1ebf.<\/p>\n","protected":false},"excerpt":{"rendered":"

                  T\u00ecm hi\u1ec3u Photodiode: k\u00fd hi\u1ec7u, ki\u1ec3u \u0111\u00f3ng g\u00f3i, c\u00f4ng th\u1ee9c, c\u00e1ch m\u1eafc trong m\u1ea1ch, ph\u01b0\u01a1ng ph\u00e1p \u0111o, l\u1ed7i th\u01b0\u1eddng g\u1eb7p v\u00e0 c\u00e1ch ch\u1ecdn linh ki\u1ec7n thay th\u1ebf.<\/p>\n","protected":false},"author":1,"featured_media":2295,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22],"tags":[],"class_list":["post-2305","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-dien-tu"],"yoast_head":"\nPhotodiode l\u00e0 g\u00ec? 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