{"id":3950,"date":"2022-11-14T12:48:00","date_gmt":"2022-11-14T04:48:00","guid":{"rendered":"https:\/\/www.block.tw\/blog\/?p=3950"},"modified":"2022-11-20T07:38:58","modified_gmt":"2022-11-19T23:38:58","slug":"ldrbjt","status":"publish","type":"post","link":"https:\/\/www.block.tw\/blog\/ldrbjt\/","title":{"rendered":"\u96fb\u6676\u9ad4\u5149\u63a7\u958b\u95dc\u5be6\u7fd2"},"content":{"rendered":"
\n
\"\"\/<\/figure>\n<\/div>\n\n\n

\u8a2d\u5099\u8207\u6750\u6599<\/h2>\n\n\n\n

\u96fb\u6e90\u4f9b\u61c9\u5668 \u00d7 1
\u4e09\u7528\u96fb\u8868 \u00d7 1
\u9eb5\u5305\u677f \u00d7 1
\u96fb\u6676\u9ad4 C9013 \u00d7 1
\u5149\u654f\u96fb\u963b LDR \u00d7 1
1\/4W \u96fb\u963b 10k\u03a9 \u00d7 1
1\/4W \u96fb\u963b 1k\u03a9 \u00d7 1
1\/4W \u96fb\u963b 680\u03a9 \u00d7 1
\u53ef\u8b8a\u96fb\u963b 200k\u03a9 \u00d7 1
\u767c\u5149\u4e8c\u6975\u9ad4 \u00d7 1<\/p>\n\n\n\n

\u96fb\u8def\u5716<\/h2>\n\n\n
\n
\"\"\/
\u57162\uff1a\u96fb\u6676\u9ad4\u5149\u63a7\u958b\u95dc\u96fb\u8def\u5716<\/figcaption><\/figure>\n<\/div>\n\n\n

\u5be6\u7fd2\u76ee\u6a19<\/h2>\n\n\n\n

1.\u4e86\u89e3\u96fb\u6676\u9ad44\u500b\u5340\u57df\u4e2d\u7684\uff1a\u622a\u6b62\u5340\uff0c\u98fd\u548c\u5340\uff0c\u5de5\u4f5c\u5340
2.\u4e86\u89e3\u5149\u654f\u96fb\u963b
3.\u4e86\u89e3\u53ef\u8b8a\u96fb\u963b
4.\u4e86\u89e3\u96fb\u6676\u9ad4 IB<\/sub><\/span>\u3001IC<\/sub><\/span>\u3001IE<\/sub><\/span>\u3001\u03b2<\/span> \u4e4b\u9593\u7684\u95dc\u4fc2<\/p>\n\n\n\n


\u5be6\u9ad4\u63a5\u7dda\u5716<\/h2>\n\n\n\n

<\/p>\n\n\n

\n
\"\"\/
\u57163\uff1a\u96fb\u6676\u9ad4\u5149\u63a7\u958b\u95dc\u5be6\u9ad4\u63a5\u7dda\u5716<\/figcaption><\/figure>\n<\/div>\n\n\n

\u5149\u654f\u96fb\u963b<\/h2>\n\n\n\n

\u4e00\u822c\u65e5\u5149\u71c8\u4e0b\u96fb\u963b\u7d043k\u03a9\uff0c\u906e\u5149\u5f8c\u96fb\u963b\u7d0425k\u03a9\uff0c\u5b8c\u5168\u906e\u5149\u96fb\u963b\u6703>1M\u03a9\uff0c\u624b\u6a5f LED \u71c8\u7167\u5c04\u5f8c\uff0c\u96fb\u963b\u53ef\u4f4e\u65bc1k\u03a9\uff1b\u665a\u4e0a\u53ea\u6709\u65e5\u5149\u71c8\u4e0b\uff0c\u4e0d\u906e\u5149\u96fb\u963b\u7d045k\u03a9\uff0c\u906e\u5149\u5f8c\u96fb\u963b\u7d04100k\u03a9\uff0c\u5b8c\u5168\u906e\u5149\u96fb\u963b\u6703>1M\u03a9\u3002<\/p>\n\n\n\n

\u96fb\u8def\u8a2d\u8a08<\/h2>\n\n\n\n

\u767d\u5929\u4e0d\u906e\u5149\u4e0d\u52d5\u4f5c\uff1a<\/h3>\n\n\n\n

VB<\/sub>\u5206\u58d3 < 0.6V
9x(1k+3k<\/span>)\/(10k+VR<\/sub>+1k+3k<\/span>) < 0.6
36k < 0.6VR<\/sub> +8.4k
0.6VR<\/sub> > 27.6k
VR<\/sub> > 46k\u03a9<\/p>\n\n\n\n

\u767d\u5929\u906e\u5149\u52d5\u4f5c\uff1a<\/h3>\n\n\n\n

VB<\/sub>\u5206\u58d3 > 0.6V
9x(1k+25k<\/span>)\/(10k+VR<\/sub>+1k+25k<\/span>) > 0.6
234k > 0.6VR +21.6k
0.6 VR<\/sub> < 212.4k
VR<\/sub> < 354k\u03a9
<\/p>\n\n\n\n

<\/div>
<\/div>
<\/div><\/div><\/div>\n\n\n\n

\u665a\u4e0a\u4e0d\u906e\u5149\u4e0d\u52d5\u4f5c\uff1a<\/h3>\n\n\n\n

VB<\/sub>\u5206\u58d3 < 0.6V
9x(1k+5k<\/span>)\/(10k+VR<\/sub>+1k+5k<\/span>) < 0.6
54k < 0.6VR<\/sub> +9.6k
0.6VR<\/sub> > 44.4k
VR<\/sub> > 74k\u03a9<\/p>\n\n\n\n

\u665a\u4e0a\u906e\u5149\u52d5\u4f5c\uff1a<\/h3>\n\n\n\n

VB<\/sub>\u5206\u58d3 > 0.6V
9x(1k+100k<\/span>)\/(10k+VR<\/sub>+1k+100k<\/span>) > 0.6
909k > 0.6VR<\/sub> +66.6k
0.6 VR<\/sub> < 842.4k
VR<\/sub> < 1.404M\u03a9<\/p>\n\n\n\n

\u7531\u4e0a\u9762\u8a08\u7b97\u5f97\u77e5\uff0c \u53ef\u8b8a\u96fb\u963b VR<\/sub> \u5728 200k\u03a9 \u7bc4\u570d\u5167\uff0c\u53ef\u4ee5\u8abf\u51fa\u9069\u7576\u7684\u5de5\u4f5c\u5340\u9593\u3002\u8981\u665a\u4e0a\u71c8\u5149\u4e0b\u8207\u767d\u5929\u90fd\u80fd\u5de5\u4f5c\uff0cVR<\/sub>\u6700\u597d\u8abf\u6574\u5230 > 74k\u03a9\uff0c\u540c\u6642\u7b26\u5408\u767d\u5929\u8207\u665a\u4e0a\u71c8\u5149\u4e0b\u90fd\u80fd\u5de5\u4f5c\u3002<\/p>\n\n\n\n

\u6e2c\u91cf\u96fb\u58d3<\/h2>\n\n\n\n

1.\u8abf\u6574 \u53ef\u8b8a\u96fb\u963b<\/span>\uff0c\u8b93\u5149\u7dda\u4eae\u6642 LED<\/span> \u6ec5\uff0c\u5149\u7dda\u6697\u6642 LED<\/span> \u4eae\u3002CDS\/LDR<\/span> \u906e\u5149\u6642\uff0c\u7576\u6210\u5149\u7dda\u6697\uff0c\u6c92\u906e\u5149\u6642\u7576\u6210\u5149\u7dda\u4eae\u3002
2.\u5149\u7dda\u6697\u6642 LED<\/span> \u4eae\uff0c\u8acb\u6e2c\u91cf VC<\/sub><\/span> \u96fb\u58d3\uff0c\u8abf\u6574 \u53ef\u8b8a\u96fb\u963b<\/span>\uff0c\u8b93 VC<\/sub><\/span> <\/sub>\u96fb\u58d3\u8d8a\u4f4e\u8d8a\u597d\uff0c\u6700\u597d\u63a5\u8fd1\u65bc 0.2V\uff0c\u4f46\u96fb\u8def\u53c8\u80fd\u6b63\u5e38\u904b\u4f5c\u3002
3. \u8abf\u6574 \u53ef\u8b8a\u96fb\u963b<\/span>\uff0c\u8b93\u96fb\u8def\u53ef\u6b63\u5e38\u904b\u4f5c \u4e14 LED \u4eae\u6642 VC<\/sub><\/span> =0.2V\uff0c\u6e2c\u91cf\u4e0b\u5217\u96fb\u58d3\uff0c\u8a08\u7b97\u96fb\u6d41\u3002
4. \u8abf\u6574 \u53ef\u8b8a\u96fb\u963b<\/span>\uff0c\u8b93\u96fb\u8def\u53ef\u6b63\u5e38\u904b\u4f5c \u4e14 LED \u4eae\u6642 VC<\/sub><\/span> =1V\uff0c\u6e2c\u91cf\u4e0b\u5217\u96fb\u58d3\uff0c\u8a08\u7b97\u96fb\u6d41\u3002<\/p>\n\n\n\n

\u8acb\u6e2c\u91cf Va<\/sub><\/span> = ? VB<\/sub><\/span> = ? VC<\/sub><\/span> = ? Vd<\/sub><\/span> = ? Vf<\/sub><\/span> = ?
\u203b\u6e2c VB<\/sub><\/span> \u6642\uff0c\u56e0\u70ba\u96fb\u58d3\u6700\u5927\u7d04\u70ba 0.6~0.7 V \u4e4b\u9593\uff0c\u56e0\u6b64\u76f4\u6d41\u96fb\u58d3\u6a94\u4f4d\u4e0d\u8981\u592a\u9ad8\uff0c\u6700\u597d\u662f10V\u4ee5\u4e0b\uff0c\u6e2c\u91cf\u7cbe\u78ba\u5ea6\u8f03\u9ad8\u3002
\u203b\u6e2c Va<\/sub><\/span> \u96fb\u58d3\uff0c\u5982\u679c\u6e2c\u51fa\u4f86\u8ddf\u5916\u52a0\u96fb\u58d3 9V \u76f8\u540c\u6642\uff0c\u53ef\u80fd\u662f\u4f60\u7684\u96fb\u8868\u7cbe\u78ba\u5ea6\u4e0d\u5920\uff0c\u53ef\u4ee5\u5148\u6e2c 10k\u03a9 \u96fb\u963b\u5169\u7aef\u96fb\u58d3\uff0cVa<\/sub><\/span> = \u5916\u52a0\u96fb\u58d3 – 10k\u03a9 \u96fb\u963b\u5169\u7aef\u96fb\u58d3
(\u4fbf\u5b9c\u7684\u6578\u4f4d\u4e09\u7528\u96fb\u8868\uff0c\u76f4\u6d41\u96fb\u58d3\u6a94\u9078 10V\u4ee5\u4e0a 100V\u4ee5\u4e0b\u7684\u6a94\u4f4d\u6642\uff0c\u53ea\u80fd\u6e2c\u5230\u5c0f\u6578\u4e0b2\u4f4d\uff0c\u907810V\u4ee5\u4e0b\u7684\u6a94\u4f4d\uff0c\u80fd\u6e2c\u5230\u5c0f\u6578\u4e0b3\u4f4d)<\/span><\/p>\n\n\n

\n
\"\"\/
\u57164\uff1a\u96fb\u6676\u9ad4\u5149\u63a7\u958b\u95dc\u96fb\u6d41\u65b9\u5411<\/figcaption><\/figure>\n<\/div>\n\n\n

\u8a08\u7b97\u96fb\u6d41<\/h2>\n\n\n\n

IB1<\/sub><\/span> =(9 – Va<\/sub><\/span>) \/ 10k (A) = (9 – Va<\/sub><\/span>) \/ 10 (mA)
IB2<\/sub><\/span> = (VB<\/sub><\/span> – Vd<\/sub><\/span>) \/ 1k (A) = (9 – Va<\/sub><\/span>) \/ 1 (mA)
IB<\/sub><\/span> = IB1<\/sub><\/span> – IB2<\/sub><\/span>
IC<\/sub><\/span> = (9 – Vf<\/sub><\/span>) \/ 680 (A) = (9 – Va<\/sub><\/span>) x 1000 \/ 680 (mA)
\u03b2<\/span> = IC<\/sub><\/span> \/ IB<\/sub><\/span><\/p>\n\n\n\n

\u5982\u679c\u4f7f\u7528\u4fbf\u5b9c\u7684\u6578\u4f4d\u96fb\u8868\u6e2c\u91cf\uff0cVa \u6e2c\u91cf\u51fa\u4f86\u6703\u8ddf\u5916\u52a0\u96fb\u58d3\u76f8\u540c\uff0c\u56e0\u6b64\u8981\u76f4\u63a5\u6e2c\u91cf10k\u03a9\u5169\u7aef\u7684\u96fb\u58d3\u5dee(\u5982\u57165)\uff0c\u9078\u7528\u76f4\u6d41\u96fb\u58d3\u6a94\u4f4d\u8d8a\u4f4e\u8d8a\u597d\uff0c\u6700\u597d\u662f\u6700\u9ad8\u96fb\u58d3\u4f4e\u65bc10V\u7684\u6a94\u4f4d\uff0c\u6b64\u6642\u7684\u7cbe\u78ba\u5ea6\u8f03\u597d\uff0c\u6211\u9078\u7528\u6700\u9ad8\u53ea\u80fd\u6e2c 2V<\/span> \u7684\u76f4\u6d41\u96fb\u58d3\u6a94\u4f4d\uff0c\u53ef\u6e2c\u5230 \u5c0f\u6578\u9ede\u4e0b 3 \u4f4d<\/span>\u3002
IB1<\/sub><\/span> =(\u57165\u96fb\u58d3\u503c) \/ 10k (A) = (\u57165\u96fb\u58d3\u503c) \/ 10 (mA) = (\u57165\u96fb\u58d3\u503c)x1000 \/ 10 (\u03bcA)
IB2<\/sub><\/span> = (\u57166\u96fb\u58d3\u503c) \/ 1k (A) = (\u57166\u96fb\u58d3\u503c) \/ 1 (mA)= (\u57166\u96fb\u58d3\u503c)x1000 \/ 1 (\u03bcA)
<\/p>\n\n\n

\n
\"\"\/
\u57165\uff1a1K\u03a9\u96fb\u963b\u5169\u7aef\u96fb\u58d3( \u6c42IB1)<\/figcaption><\/figure>\n<\/div>\n\n
\n
\"\"\/
\u57166\uff1a1K\u03a9\u96fb\u963b\u5169\u7aef\u96fb\u58d3( \u6c42IB2)<\/figcaption><\/figure>\n<\/div>\n\n\n

\u96fb\u6676\u9ad4\u98fd\u548c<\/h2>\n\n\n\n
    \n
  1. \u03b2IB<\/sub> > IC<\/sub><\/li>\n\n\n\n
  2. VCE<\/sub> \u2252 0.2V<\/li>\n<\/ol>\n\n\n\n
    \u76f8\u95dc\u77e5\u8b58<\/div><\/span>
    \u5100\u8868\u64cd\u4f5c<\/div><\/span>
    \u5be6\u7fd2I<\/div><\/span>
    \u5be6\u7fd2II<\/div><\/span><\/div>

    \u534a\u5c0e\u9ad4<\/a>
    \u4e8c\u6975\u9ad4<\/a>
    \u8b8a\u58d3\u5668\u4e2d\u9593\u62bd\u982d\u5168\u6ce2\u6574\u6d41<\/a>
    \u8b8a\u58d3\u5668\u4e2d\u9593\u62bd\u982d\u5168\u6ce2\u6574\u6d41+\u6ffe\u6ce2\u96fb\u8def<\/a>
    \u6a4b\u5f0f\u6574\u6d41<\/a>
    \u534a\u6ce2\u500d\u58d3<\/a>
    \u5168\u6ce2\u500d\u58d3<\/a>
    \u7a3d\u7d0d\u4e8c\u6975\u9ad4<\/a>
    \u96fb\u6676\u9ad4<\/a>
    \u5149\u654f\u96fb\u963b<\/a>
    \u9054\u9748\u9813<\/a>
    \u653e\u5927\u5668\u7684\u5206\u985e<\/a><\/p><\/div><\/div><\/div>

    \u4e09\u7528\u96fb\u8868 \u4ea4\u6d41\u96fb\u58d3(ACV)\u6e2c\u91cf<\/a>
    \u4e09\u7528\u96fb\u8868 \u76f4\u6d41\u96fb\u58d3\u6e2c\u91cfDCV<\/a>
    \u6578\u4f4d\u793a\u6ce2\u5668\u7c21\u6613\u64cd\u4f5c<\/a>
    \u4e09\u7528\u96fb\u8868 \u4e8c\u6975\u9ad4\u9006\u5411\u6f0f\u96fb\u6d41\u6e2c\u91cf<\/a>
    \u4e09\u7528\u96fb\u8868 \u4e8c\u6975\u9ad4\u9806\u5411\u96fb\u58d3\u6e2c\u91cf<\/a>
    \u8a0a\u865f\u7522\u751f\u5668\u7c21\u6613\u64cd\u4f5c<\/a>
    \u793a\u6ce2\u5668\u64cd\u4f5c<\/a><\/p><\/div><\/div><\/div>


    \u8b8a\u58d3\u5668\u4e2d\u9593\u62bd\u982d\u5168\u6ce2\u6574\u6d41\u5be6\u7fd2<\/a>
    \u8b8a\u58d3\u5668\u4e2d\u9593\u62bd\u982d\u5168\u6ce2\u6574\u6d41\u6ffe\u6ce2\u5be6\u7fd2<\/a>
    \u6a4b\u5f0f\u6574\u6d41\u5be6\u7fd2<\/a>
    \u534a\u6ce2\u500d\u58d3\u5be6\u7fd2<\/a>
    \u5168\u6ce2\u500d\u58d3\u5be6\u7fd2<\/a>
    \u7a3d\u7d0d\u7a69\u58d3\u96fb\u8def\u5be6\u7fd2<\/a>
    \u96fb\u6676\u9ad4\u57fa\u6975(B) \u6e2c\u91cfPNP\u3001NPN\u5224\u5b9a\u5be6\u7fd21<\/a>
    \u96fb\u6676\u9ad4\u57fa\u6975(B)\u6e2c\u91cfPNP\u3001NPN\u5224\u5b9a\u5be6\u7fd22<\/a>
    \u96fb\u6676\u9ad4\u57fa\u6975(B)\u6e2c\u91cf PNP\u3001NPN \u5224\u5b9a\u5be6\u7fd23<\/a>
    \u96fb\u6676\u9ad4\u5c04\u6975(E)\u96c6\u6975(C)\u5224\u5b9a\u53ca\u03b2\u6e2c\u91cf\u5be6\u7fd2<\/a>
    \u96fb\u6676\u9ad4\u5149\u63a7\u958b\u95dc\u5be6\u7fd2<\/a>
    \u96fb\u6676\u9ad4\u5ef6\u6642\u96fb\u8def\u5be6\u7fd2<\/a>
    NPN\u96fb\u6676\u9ad4\u5171\u5c04\u6975(CE)A\u985e\u653e\u5927\u5668\u5be6\u7fd2<\/a>
    PNP\u96fb\u6676\u9ad4\u5171\u5c04\u6975(CE)A\u985e\u653e\u5927\u5668\u5be6\u7fd2<\/a>
    \u96fb\u6676\u9ad4\u63a8\u633d\u653e\u5927\u5668\u5be6\u7fd2<\/a><\/p><\/div><\/div><\/div>

    \u589e\u5f37\u578b MOSFET \u63a5\u8173\u6e2c\u91cf<\/a>
    \u589e\u5f37\u578b MOSFET \u7279\u6027\u66f2\u7dda\u6e2c\u91cf<\/a>
    MOSFET \u89f8\u63a7\u958b\u95dc\u5be6\u7fd2<\/a>
    MOSFET \u8a08\u6642\u96fb\u8def\u5be6\u7fd2<\/a>
    MOSFET \u96fb\u58d3\u8abf\u6574\u96fb\u8def\u5be6\u7fd2<\/a>
    MOSFET \u5171\u6e90\u6975\u653e\u5927\u5668\u5be6\u7fd2<\/a>
    MOSFET \u8abf\u5149\u96fb\u8def\u5be6\u7fd2<\/a>
    MOSFET \u53cd\u76f8\u5668 NOT \u5be6\u7fd2<\/a>
    MOSFET NOT\u9598-\u7121\u7a69\u614b\u632f\u76ea\u5668<\/a>
    MOSFET NOR \u908f\u8f2f\u9598\u5be6\u7fd2<\/a>
    MOSFET OR \u908f\u8f2f\u9598\u5be6\u7fd2<\/a>
    MOSFET NAND \u908f\u8f2f\u9598\u5be6\u7fd2<\/a>
    MOSFET AND \u908f\u8f2f\u9598\u5be6\u7fd2<\/a>
    XOR \u908f\u8f2f\u9598\u5be6\u7fd2<\/a>
    XNOR \u908f\u8f2f\u9598\u5be6\u7fd2<\/a>
    \u53cdRS\u6b63\u53cd\u5668-\u89f8\u6478\u958b\u95dc\u5be6\u7fd2<\/a>
    RS \u6b63\u53cd\u5668\u5be6\u7fd2<\/a>
    4011 \u96fb\u5b50\u7434(\u7121\u7a69\u614b)<\/a>
    \u904b\u7b97\u653e\u5927\u5668 On Timer<\/a>
    \u904b\u7b97\u653e\u5927\u5668 Off Timer<\/a>
    \u904b\u7b97\u653e\u5927\u5668 \u5149\u63a7\u958b\u95dc<\/a>
    \u904b\u7b97\u653e\u5927\u5668 \u53cd\u76f8\u653e\u5927\u5be6\u7fd2<\/a>
    \u904b\u7b97\u653e\u5927\u5668 \u975e\u53cd\u76f8\u653e\u5927\u5be6\u7fd2<\/a>
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    \u904b\u7b97\u653e\u5927\u5668 RC\u76f8\u79fb\u632f\u76ea\u5668<\/a>
    555 \u7121\u7a69\u614b 1<\/a>
    555 \u7121\u7a69\u614b 2<\/a>
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