{"id":337,"date":"2024-05-15T19:41:08","date_gmt":"2024-05-15T10:41:08","guid":{"rendered":"https:\/\/blog.gerd.kr\/?p=337"},"modified":"2024-05-28T16:21:01","modified_gmt":"2024-05-28T07:21:01","slug":"555-%ed%83%80%ec%9d%b4%eb%a8%b8-%ec%82%ac%ec%9a%a9%eb%b2%95","status":"publish","type":"post","link":"https:\/\/blog.gerd.kr\/?p=337","title":{"rendered":"555 \ud0c0\uc774\uba38 \uc0ac\uc6a9\ubc95"},"content":{"rendered":"\n

\uac1c\uc694<\/h4>\n\n\n\n

\ubc94\uc6a9 \ud0c0\uc774\uba38 IC \ub85c \uc774\uc804\ubd80\ud130 \ub9ce\uc774 \uc0ac\uc6a9\ub418\uace0 \uc788\ub294 555 \uc5d0 \ub300\ud55c \uc0ac\uc6a9\ubc95\uc744 \uc124\uba85\ud569\ub2c8\ub2e4. \ub9ce\uc740 \uc5c5\uccb4\uc5d0\uc11c \uc81c\uc870\ub418\uace0 \uc788\uc5b4\uc11c \ud615\ubc88\ub3c4 \uc5ec\ub7ec\uac00\uc9c0\uc9c0\ub9cc, \ub300\ubd80\ubd84 555 \ub77c\ub294 \uc22b\uc790\ub97c \uc0ac\uc6a9\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4. \ub2e4\ub978 \ud6cc\ub96d\ud55c \ud0c0\uc774\uba38 IC \uac00 \uc5ec\ub7ff \uc788\uc9c0\ub9cc, \uc0ac\uc6a9\uc774 \ud3b8\ub9ac\ud558\uace0 \uc27d\uac8c \uad6c\uc785\ud560 \uc218 \uc788\ub294 555 \ud0c0\uc774\uba38\uac00 \ub9ce\uc774 \uc0ac\uc6a9\ub418\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

5V \uc774\uc0c1\uc5d0\uc11c \uc791\ub3d9\ud558\uba70 10\u00b5S \uc5d0\uc11c 100\ucd08 \uc815\ub3c4\uc758 \uc2dc\uac04\uc744 \uad6c\ud604\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ucf58\ub374\uc11c\uc640 \uc800\ud56d\uc5d0 \uc758\ud55c \uc2dc\uc815\uc218\ub85c \ud0c0\uc774\uba38 \uc2dc\uac04\uc744 \uc124\uc815\ud558\ub294 \uc544\ub0a0\ub85c\uadf8\uc801 \ubc29\ubc95\uc744 \uc0ac\uc6a9\ud558\ubbc0\ub85c \uc591\uc9c8\uc758 \ucf58\ub374\uc11c\ub97c \uc0ac\uc6a9\ud558\uba74 \uc7a5\uc2dc\uac04 \ud0c0\uc774\uba38\ub3c4 \ub9cc\ub4e4 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

\ub610\ud55c, \ucd9c\ub825 \uc804\ub958\ub97c 150mA \uae4c\uc9c0 ( \ucd9c\ub825\uc804\uc555\uc740 \uc880 \ub5a8\uc5b4\uc9c0\uc9c0\ub9cc ) \ub0bc \uc218 \uc788\ub294 \ud2b9\uc9d5\uc774 \uc788\uc73c\uba70 \uc18c\ube44 \uc804\ub958\uac00 \uc57d\uac04 \ud070 \ud3b8\uc774\ub098, \uc694\uc998\uc740 \uc18c\ube44\uc804\ub825\uc774 \uc801\uc740 CMOS \ud615 555 \ub3c4 \ub098\uc640 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

\ud540 \ubc30\uce58<\/h3>\n\n\n\n
\"\"<\/figure>\n\n\n\n

\uac01 \ud540\uc758 \uae30\ub2a5<\/p>\n\n\n\n

    \n
  1. GND : \ub9c8\uc774\ub108\uc2a4 \uc804\uc6d0<\/li>\n\n\n\n
  2. TRIGGER (TG) : – \uc804\uc6d0 \uc804\uc555\uc758 1\/3 \ubcf4\ub2e4 \ub0ae\uc740 \uc804\uc555\uc774 \ub418\uba74 \uae30\ub3d9<\/li>\n\n\n\n
  3. OUTPUT (OUT) : \ucd9c\ub825\uc73c\ub85c \uc815\uc9c0 \uc2dc\ub294 L, \ud0c0\uc774\uba38 \uae30\ub3d9 \uc911\uc740 H\uac00 \ub429\ub2c8\ub2e4<\/li>\n\n\n\n
  4. RESET (RES) : \ud0c0\uc774\uba38 \ucd9c\ub825\uc744 \uc815\uc9c0\uc2dc\ucf1c L \ub85c \ud569\ub2c8\ub2e4.<\/li>\n\n\n\n
  5. CONTROL VOLTAGE (FM) : 6\ubc88 \ud540\uc758 THRESHOLD (Th) \uc804\uc555\uc744 \uc81c\uc5b4\ud569\ub2c8\ub2e4.<\/li>\n\n\n\n
  6. THRESHOLD (Th) : \uc774 \ub2e8\uc790\uc758 \uc804\uc555\uc774 \uc804\uc6d0\uc758 2\/3 \ub97c \ub118\uc73c\uba74 \ud0c0\uc774\uba38 \uc2dc\uac04\uc774 \uc885\ub8cc\ud569\ub2c8\ub2e4.<\/li>\n\n\n\n
  7. DISCHARGE (DIS) : \ucf58\ub374\uc11c\ub97c \ubc29\uc804\ud569\ub2c8\ub2e4<\/li>\n\n\n\n
  8. +VCC : \ud50c\ub7ec\uc2a4 \uc804\uc6d0<\/li>\n<\/ol>\n\n\n\n

    6\ubc88 Th \uc758 \ube44\uad50 \uc804\uc555\uc740 \ub0b4\ubd80\uc5d0\uc11c \uc800\ud56d\uc5d0 \uc758\ud574 \uc804\uc6d0 \uc804\uc555\uc758 2\/3 \ub85c \ubd84\ud560\ub418\uc5b4 \uc788\uc2b5\ub2c8\ub2e4. \uc774 \ubd84\ud560\uc810\uc744 \uc678\ubd80\ub85c \uaebc\ub0b8\uac83\uc774 \uac83\uc774 5\ubc88 FM \uc785\ub2c8\ub2e4. \ud1b5\uc0c1\uc740 \uac1c\ubc29 \uc0c1\ud0dc\ub85c \uc0ac\uc6a9\ud558\uba70, \uc774 \ub54c\uc5d0\ub294 \uc804\uc6d0 \uc804\uc555\uc758 2\/3 \uc774 \ub098\uc635\ub2c8\ub2e4. \uc774 \ub2e8\uc790 \uc804\uc555\uc744 \uc870\uc808\ud558\uc5ec \uc81c\uc5b4\ud569\ub2c8\ub2e4. \uc774 FM \uc758 \uc804\uc555\uc744 \u00bd \ub85c \ubd84\ud560\ud55c \uc804\uc555\uc774 2\ubc88 TR \ub2e8\uc790\uc758 \uc720\ud6a8 \ud310\uc815 \uc804\uc555\uc774 \ub429\ub2c8\ub2e4. FM \uc758 \uc804\uc555\uc744 \ubc14\uafb8\uba74 \ud0c0\uc774\uba38\uc758 \uc2dc\uac04\uacfc \ud2b8\ub9ac\uac70 \uac10\ub3c4\ub3c4 \ubc14\ub01d\ub2c8\ub2e4.<\/p>\n\n\n\n

    ONE-SHOT TIMER<\/h3>\n\n\n\n

    \uc544\ub798 \ud68c\ub85c\ub294 555\uc758 \uae30\ubcf8 \ub3d9\uc791\uc911 \ud558\ub098\uc778 ONE-SHOT \ud0c0\uc774\uba38 \ud68c\ub85c\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n

    \"\"<\/figure>\n\n\n\n

    \ud478\uc26c\ubc84\ud2bc\uc744 \ub204\ub974\uba74 2\ubc88 TG \uac00 0V \uac00 \ub418\uba74\uc11c \ud0c0\uc774\uba38 \ub3d9\uc791\uc774 \uc2dc\uc791\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n

    \ucd9c\ub825\uc774 HIGH \ub808\ubca8\uc774 \ub418\ub294 \uac83\uacfc \ub3d9\uc2dc\uc5d0 7\ubc88 DIS \uac00 \uac1c\ubc29 \uc0c1\ud0dc\uac00 \ub429\ub2c8\ub2e4. \uc774\ub807\uac8c \ub418\uba74 7\ubc88 DIS \ub97c \ud1b5\ud574 \ud56d\uc0c1 \ubc29\uc804\ud558\uace0 \uc788\uc5c8\ub358 ct \ucf58\ub374\uc11c(10\u00b5F) \ub294 rt \uc800\ud56d (1 M\u03a9) \uc744 \ud1b5\ud574 \ucda9\uc804\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n

    ct \uc758 \uc804\uc555\uc774 \ub2e4\uc2dc \uc804\uc6d0 \uc804\uc555\uc758 2\/3 \uac00 \ub418\uba74, \ucd9c\ub825\uc740 LOW \ub808\ubca8\ub85c \ub3cc\uc544\uc624\uba70 ct \uc5d0 \uc313\uc778 \uc804\ud558\ub294 7\ubc88 DIS \ub2e8\uc790\ub97c \ud1b5\ud574 \ubc29\uc804\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n

    \uc774\uc640 \uac19\uc740 \ub3d9\uc791\uc774 555\uc758 ONE-SHOT \ub3d9\uc791\uc758 \uae30\ubcf8\uc774\uba70 \ucd9c\ub825\uc774 HIGH \ub85c \uc720\uc9c0 \ub418\ub294 \uc2dc\uac04 (\ud0c0\uc774\uba38 \uc2dc\uac04) \uc740 ct \uac00 rt \ub97c \ud1b5\ud574 \ucda9\uc804\ub418\ub294 \uc2dc\uac04\uc73c\ub85c \uacb0\uc815\ub429\ub2c8\ub2e4. \uc774 \uc2dc\uac04\uc758 \uadfc\uc0ac\uce58\ub97c ct \uc640 rt \ub97c \uacf1\ud558\ub294 \uac83\uc73c\ub85c \uad6c\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

    \uc704\uc758 \uc608\uc2dc \ud68c\ub85c\uc5d0\uc11c\ub294 10\u00b5F(0.00001F) \uacfc 1M\u03a9(1000000\u03a9) \ub97c \uacf1\ud574 \ub300\ub7b5 10\ucd08 \ud6c4\uc5d0 \ub3d9\uc791\ud55c\ub2e4\ub294 \uac83\uc744 \uc54c \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc815\ud655\ud558\uac8c \ub9de\ucd94\ub824\uba74 rt \ub97c \uac00\ubcc0 \uc800\ud56d\uc73c\ub85c \ud558\uc5ec \ub530\ub85c \uc870\uc815\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n

    \ucd9c\ub825\uc5d0 \uc800\ud56d\uacfc \ubc1c\uad11 \ub2e4\uc774\uc624\ub4dc (\uc810\uc120\uc73c\ub85c \ud45c\uc2dc\ub41c \ud68c\ub85c) \ub97c \uc5f0\uacb0\ud558\uba74 \uac04\ub2e8\ud558\uac8c \uc2e4\ud5d8\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

    555 \ubc1c\uc9c4\ud68c\ub85c – 1<\/h3>\n\n\n\n
    \"\"<\/figure>\n\n\n\n

    \ucf58\ub374\uc11c ct \uc758 \uc804\uc555\uc744 2\ubc88 TG \uc5d0 \uc774\uc6a9\ud558\ub294 \ud68c\ub85c\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n

    \ucf58\ub374\uc11c ct \uc758 \uc804\uc555\uc774 \uc804\uc6d0\uc758 1\/3 \ubcf4\ub2e4 \ub0ae\uc544\uc9c0\uba74 \ud0c0\uc774\uba38\uac00 \uc2dc\uc791\ud569\ub2c8\ub2e4. \uac8c\ub2e4\uac00 ct \ub294 6\ubc88 Th \uc5d0\ub3c4 \uc5f0\uacb0\ub418\uc5b4 \uc788\uc5b4\uc11c \ucf58\ub374\uc11c ct \uc758 \uc804\uc555\uc774 \uc804\uc6d0\uc758 2\/3 \ubcf4\ub2e4 \ub192\uc544\uc9c0\uba74 \ud0c0\uc774\uba38\uac00 \uc815\uc9c0\ub429\ub2c8\ub2e4. \ud0c0\uc774\uba38\uac00 \ub3d9\uc791\ud558\ub294 \uc911\uc5d0\ub294 \uc800\ud56d r1 \uacfc \uc800\ud56d r2 \ub97c \ud1b5\ud574 \ucf58\ub374\uc11c ct \uac00 \ucda9\uc804\ub418\uba70, 3\ubc88 OUT \uc740 HIGH \uac00 \ub429\ub2c8\ub2e4. \uadf8\ub9ac\uace0, \ud0c0\uc774\uba38\uac00 \uc815\uc9c0\ub41c \uc0c1\ud0dc\ub77c\uba74 7\ubc88 DIS \uac00 0V \uac00 \ub418\uba74\uc11c \ucf58\ub374\uc11c ct \ub294 \uc800\ud56d r2 \ub97c \ud1b5\ud574 \ubc29\uc804\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n

    \uc815\ub9ac\ud558\uba74\u2026<\/p>\n\n\n\n

      \n
    1. \ud0c0\uc774\uba38\uac00 \uc2dc\uc791\ud558\uba74,<\/li>\n\n\n\n
    2. \ucf58\ub374\uc11c ct \uac00 \ucda9\uc804\ub418\uba70 \uac78\ub9ac\ub294 \uc804\uc555\uc774 \uc810\uc810 \ub192\uc544\uc838 \uc804\uc6d0\uc758 2\/3 \uc774\uc0c1\uc774 \ub418\uba74 \ud0c0\uc774\uba38\uac00 \uc815\uc9c0.<\/li>\n\n\n\n
    3. \ud0c0\uc774\uba38\uac00 \uc815\uc9c0\ub418\uba74,<\/li>\n\n\n\n
    4. \ucf58\ub374\uc11c ct \uac00 \ubc29\uc804\ub418\uba70 \uac78\ub9ac\ub294 \uc804\uc555\uc774 \uc810\uc810 \ub0ae\uc544\uc838 \uc804\uc6d0\uc758 1\/3 \uc774\ud558\uac00 \ub418\uba74 \ud0c0\uc774\uba38\uac00 \ub2e4\uc2dc \uc2dc\uc791<\/li>\n\n\n\n
    5. \uc774 \ub3d9\uc791\uc744 \uc601\uad6c\ud788 \ubc18\ubcf5\ud569\ub2c8\ub2e4.<\/li>\n<\/ol>\n\n\n\n

      \ubc1c\uc9c4 \uc8fc\uae30\ub294 \ud0c0\uc774\uba38 \ub3d9\uc791 \uc2dc\uac04(\ucd9c\ub825 = HIGH) \uc740 0.693 * (r1 + r2) * ct \uc774\uba70, \ud0c0\uc774\uba38 \uc815\uc9c0 \uc2dc\uac04(\ucd9c\ub825 = LOW) \uc740 0.693 * r2 * ct \ub85c \uac01\uac01 \uacc4\uc0b0 \ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub458\ub2e4 r2 \ub97c \ud3ec\ud568\ud558\uc9c0\ub9cc \ub3d9\uc791\uc2dc\uac04\uc740 r1 \uc774 \ub354\ud574\uc9c0\uae30 \ub54c\ubb38\uc5d0, \ucd9c\ub825\uc774 HIGH \uac00 \ub418\ub294 \uc2dc\uac04\uacfc LOW \uac00 \ub418\ub294 \uc2dc\uac04\uc758 \ube44 (Duty\ube44) \ub97c 1 \ub85c \ud560 \uc218 \uc5c6\uc73c\uba70 HIGH < LOW \uac00 \ub420 \uc218 \uc5c6\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

      \uc704 \ud68c\ub85c\ub294 \ucd9c\ub825\uc774 HIGH \uac00 \ub418\ub294 \uc2dc\uac04\uc774 1M + 10K \ub85c 1010K \uc640 1\u00b5 \uc774\ub2c8\uae4c \uc57d 0.699\ucd08, \ucd9c\ub825\uc774 LOW \uac00 \ub418\ub294 \uc2dc\uac04\uc740 1000K \uc640 1\u00b5 \ub85c \ud574\uc11c 0.693\ucd08\ub85c \uacc4\uc0b0 \ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.
      \ud68c\ub85c\uc5d0 \ub2e4\uc774\uc624\ub4dc\ub97c \ucd94\uac00\ud558\uba74 \uc6d0\ud558\ub294 Duty\ube44\ub97c \ub9cc\ub4e4\uc5b4 \ub0bc \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n

      \u203b Duty\ube44 : Duty\ube44\ub294 HIGH \uc2dc\uac04\uacfc LOW \uc2dc\uac04\uc758 \uad00\uacc4\ub85c, H \/ (H+L) \uacfc \uac19\uc774 \ub098\ud0c0\ub0b4\uba70 \uac12\uc740 0 \uc5d0\uc11c 1 \uc0ac\uc774\uac00 \ub429\ub2c8\ub2e4.<\/p>\n\n\n\n

      555 \ubc1c\uc9c4\ud68c\ub85c \u2013 2<\/h3>\n\n\n\n
      \"\"<\/figure>\n\n\n\n

      \uc704 \ud68c\ub85c\ub294 \ucd9c\ub825 HIGH \uc758 \uc2dc\uac04\uacfc LOW \uc758 \uc2dc\uac04 (Duty \ube44) \uc744 \ubcfc\ub968 (VR) \uc73c\ub85c \uac00\ubcc0 \ud560 \uc218 \uc788\ub3c4\ub85d \ub2e4\uc774\uc624\ub4dc\ub97c 2\uac1c \ucd94\uac00\ud55c \uac83 \uc785\ub2c8\ub2e4. \ubcf8\ub798 555 \uc758 \ubc1c\uc9c4 \uc8fc\uae30\ub294 \uc804\uc6d0 \uc804\uc555\uc5d0 \uc758\uc874\ud558\uc9c0 \uc54a\uc9c0\ub9cc, \uace0\uc815\uc801\uc73c\ub85c \uc57d 0.6V \uc758 \uc804\uc555\uac15\ud558\uac00 \ubc1c\uc0dd\ud558\ub294 \ub2e4\uc774\uc624\ub4dc\ub97c \ucd94\uac00\ud558\uba74 \uc804\uc6d0 \uc804\uc555\uc758 \ubcc0\ud654\uc5d0 \ub530\ub77c \ubc1c\uc9c4\uc8fc\ud30c\uc218\uac00 \ubcc0\ud654 \ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ud558\uc9c0\ub9cc, \uc548\uc815\ud654 \uc804\uc6d0\uc744 \uc0ac\uc6a9\ud558\uba74 \ubb34\uc2dc \ud560 \uc218 \uc788\ub294 \ubc94\uc704\uc785\ub2c8\ub2e4.<\/p>\n","protected":false},"excerpt":{"rendered":"

      \uac1c\uc694 \ubc94\uc6a9 \ud0c0\uc774\uba38 IC \ub85c \uc774\uc804\ubd80\ud130 \ub9ce\uc774 \uc0ac\uc6a9\ub418\uace0 \uc788\ub294 555 \uc5d0 \ub300\ud55c \uc0ac\uc6a9\ubc95\uc744 \uc124\uba85\ud569\ub2c8\ub2e4. \ub9ce\uc740 \uc5c5\uccb4\uc5d0\uc11c \uc81c\uc870\ub418\uace0 \uc788\uc5b4\uc11c \ud615\ubc88\ub3c4 \uc5ec\ub7ec\uac00\uc9c0\uc9c0\ub9cc, \ub300\ubd80\ubd84 555 \ub77c\ub294 \uc22b\uc790\ub97c \uc0ac\uc6a9\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4. \ub2e4\ub978 \ud6cc\ub96d\ud55c \ud0c0\uc774\uba38 IC \uac00 \uc5ec\ub7ff \uc788\uc9c0\ub9cc, \uc0ac\uc6a9\uc774 \ud3b8\ub9ac\ud558\uace0 \uc27d\uac8c \uad6c\uc785\ud560 \uc218 \uc788\ub294 555 \ud0c0\uc774\uba38\uac00 \ub9ce\uc774 \uc0ac\uc6a9\ub418\uace0 \uc788\uc2b5\ub2c8\ub2e4. 5V \uc774\uc0c1\uc5d0\uc11c \uc791\ub3d9\ud558\uba70 10\u00b5S \uc5d0\uc11c 100\ucd08 \uc815\ub3c4\uc758 \uc2dc\uac04\uc744 \uad6c\ud604\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[105],"tags":[102,104,103],"class_list":["post-337","post","type-post","status-publish","format-standard","hentry","category-howto","tag-102","tag-timer","tag-103"],"_links":{"self":[{"href":"https:\/\/blog.gerd.kr\/index.php?rest_route=\/wp\/v2\/posts\/337","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.gerd.kr\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.gerd.kr\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.gerd.kr\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.gerd.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=337"}],"version-history":[{"count":8,"href":"https:\/\/blog.gerd.kr\/index.php?rest_route=\/wp\/v2\/posts\/337\/revisions"}],"predecessor-version":[{"id":388,"href":"https:\/\/blog.gerd.kr\/index.php?rest_route=\/wp\/v2\/posts\/337\/revisions\/388"}],"wp:attachment":[{"href":"https:\/\/blog.gerd.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=337"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.gerd.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=337"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.gerd.kr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=337"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}