{"id":361,"date":"2025-06-12T20:23:07","date_gmt":"2025-06-12T12:23:07","guid":{"rendered":"https:\/\/yin.nnneri.me\/?p=361"},"modified":"2025-06-15T14:52:21","modified_gmt":"2025-06-15T06:52:21","slug":"%e6%a8%a1%e7%94%b5%e6%9c%9f%e6%9c%ab%e5%a4%8d%e4%b9%a0","status":"publish","type":"post","link":"https:\/\/yin.nnneri.me\/?p=361","title":{"rendered":"\u6a21\u7535\u671f\u672b\u590d\u4e60"},"content":{"rendered":"<h1>\u7eea\u8bba<\/h1>\n<h2>\u6a21\u62df\u4fe1\u53f7\u4e0e\u6570\u5b57\u4fe1\u53f7\u533a\u522b<\/h2>\n<h1>\u534a\u5bfc\u4f53\u5668\u4ef6<\/h1>\n<h2>\u534a\u5bfc\u4f53\u7684\u7279\u6027<\/h2>\n<p>\u534a\u5bfc\u4f53\u5b9a\u4e49\uff1a\u901a\u5e38\u5c06\u5bfc\u7535\u80fd\u529b\u4ecb\u4e8e\u5bfc\u4f53\u548c\u7edd\u7f18\u4f53\u4e4b\u95f4\u7684\u4e00\u5927\u7c7b\u7269\u8d28\u6210\u4e3a\u534a\u5bfc\u4f53<\/p>\n<h3>\u672c\u5f81\u534a\u5bfc\u4f53<\/h3>\n<p>\u5b9a\u4e49\uff1a \u7eaf\u51c0\u7684\u3001\u4e0d\u542b\u6742\u8d28\u7684\u534a\u5bfc\u4f53<\/p>\n<h3>\u6742\u8d28\u534a\u5bfc\u4f53<\/h3>\n<p>\u672c\u5f81\u534a\u5bfc\u4f53\u91cc\u63ba\u5165\u6742\u8d28<br \/>\n- N\u578b\u534a\u5bfc\u4f53<br \/>\n- P\u578b\u534a\u5bfc\u4f53<\/p>\n<h2>\u534a\u5bfc\u4f53\u4e8c\u6781\u7ba1<\/h2>\n<h3>PN\u7ed3\u4e24\u79cd\u63a5\u6cd5<\/h3>\n<ul>\n<li>\u6b63\u5411\u63a5\u6cd5\uff08\u6b63\u5411\u504f\u7f6e\uff09\uff1a\u6b63\u6781P\u533a\uff0c\u8d1f\u6781N\u533a<\/li>\n<li>\u53cd\u5411\u63a5\u6cd5\uff08\u53cd\u5411\u504f\u7f6e\uff09\uff1a\u6b63\u6781N\u533a\uff0c\u8d1f\u6781P\u533a<br \/>\n\u5916\u52a0\u7684\u53cd\u5411\u7535\u538b\u8d85\u8fc7\u4e00\u5b9a\u503c\u540e\u7535\u6d41\u4e0d\u518d\u589e\u5927\uff0c\u79f0\u4f5c<strong>\u53cd\u5411\u9971\u548c\u7535\u6d41<\/strong><br \/>\n\u53cd\u5411\u9971\u548c\u7535\u6d41\u7531\u5c11\u5b50\u4ea7\u751f\uff0c\u6240\u4ee5\u5bf9\u6e29\u5ea6\u654f\u611f<\/li>\n<\/ul>\n<h3>\u4e8c\u6781\u7ba1\u7684\u4f0f\u5b89\u7279\u6027<\/h3>\n<ul>\n<li>\u6b63\u5411\u7279\u6027<\/li>\n<li>\u53cd\u5411\u7279\u6027<\/li>\n<\/ul>\n<h3>\u4e8c\u6781\u7ba1\u7684\u7b49\u6548\u6a21\u578b<\/h3>\n<ul>\n<li>\u7406\u60f3\u6a21\u578b<\/li>\n<li>\u6052\u538b\u964d\u6a21\u578b<\/li>\n<li>\u6298\u7ebf\u6a21\u578b<\/li>\n<\/ul>\n<h3>\u4e00\u4e9b\u7279\u6b8a\u7684\u4e09\u6781\u7ba1<\/h3>\n<h2>\u53cc\u6781\u7ed3\u578b\u4e09\u6781\u7ba1<\/h2>\n<h3>\u7ed3\u6784<\/h3>\n<p>\u53d1\u5c04\u6781\uff08e\uff09\u3001\u96c6\u7535\u6781\uff08b\uff09\u3001\u57fa\u6781\uff08c\uff09<br \/>\nNPN\u3001PNP<\/p>\n<h1>\u653e\u5927\u7535\u8def\u7684\u57fa\u672c\u539f\u7406\u548c\u5206\u6790\u65b9\u6cd5<\/h1>\n<h2>\u653e\u5927\u7684\u6982\u5ff5\u548c\u6307\u6807<\/h2>\n<p>\u653e\u5927\u7684\u672c\u8d28\u662f\u5b9e\u73b0<strong>\u80fd\u91cf\u7684\u63a7\u5236<\/strong><br \/>\n\u653e\u5927\u7684\u5bf9\u8c61\u662f<strong>\u53d8\u5316\u91cf<\/strong><\/p>\n<h3>\u653e\u5927\u500d\u6570<\/h3>\n<p>\u7535\u538b\u653e\u5927\u500d\u6570\uff1a$\\dot{A}_u = \\frac{\\dot{U}_o}{\\dot{U}_i}$<br \/>\n\u8f93\u5165\u7535\u963b\uff1a\u653e\u5927\u7535\u8def\u7684\u8f93\u5165\u7aef\u770b\u8fdb\u53bb\u7684\u7b49\u6548\u7535\u963b\uff0c\u63cf\u8ff0\u653e\u5927\u7535\u8def\u5bf9\u4fe1\u53f7\u6e90\u7d22\u53d6\u7535\u6d41\u7684\u5927\u5c0f<br \/>\n\u8f93\u51fa\u7535\u963b\uff1a... \u63cf\u8ff0\u653e\u5927\u7535\u8def\u5e26\u8f7d\u80fd\u529b\u7684\u6307\u6807<\/p>\n<h2>\u5355\u7ba1\u5171\u5c04\u653e\u5927\u7535\u8def<\/h2>\n<p>\u505a\u9898\u6b65\u9aa4\uff1a<br \/>\n1. \u5bfb\u627e\u9759\u6001\u5de5\u4f5c\u70b9<br \/>\n   $I_{BQ},I_{CQ},U_{CEQ}$<br \/>\n2. \u5fae\u53d8\u7b49\u6548\u7535\u8def\u6cd5\u6c42\u89e3$\\beta,r_{be}$<br \/>\n3. \u753b\u51fa\u5fae\u53d8\u7b49\u6548\u7535\u8def<br \/>\n4. \u6c42\u89e3<\/p>\n<p>\u5178\u578b\u9898\u76ee1<\/p>\n<blockquote><p>\n  \u7535\u8def\u5982\u56fe\u6240\u793a\uff0c\u6676\u4f53\u7ba1\u7684$\\beta = 80, r_{be} = 1000\\Omega,U_{BEQ} = 0.7V$<br \/>\n  \u6c42\uff1a\u9759\u6001\u5de5\u4f5c\u70b9\u3001\n<\/p><\/blockquote>\n<p>\u5bfb\u627e\u9759\u6001\u5de5\u4f5c\u70b9\uff1a<br \/>\n1. \u8ba1\u7b97$I_{BQ}$\uff0c\u5957\u516c\u5f0f<br \/>\n   $$I_{BQ} = \\frac{V_{cc} - U_{BEQ}}{R_b + (1+\\beta)R_e}$$<br \/>\n2. $I_{EQ} = (1+\\beta)I_{BQ}$<br \/>\n3. \u6c42\u89e3$U_{CEQ}$<\/p>\n<p>\u6c42\u89e3\u52a8\u6001\u53c2\u6570<br \/>\n\u516c\u5f0f\uff1a<br \/>\n$$\\dot{A}<em>u = \\frac{\\dot{U}_o}{\\dot{U}_i} = -\\frac{\\beta R^\\prime _L}{r<\/em>{be}+(1+\\beta)R_e}$$<br \/>\n$$R_i = \\frac{\\dot{U}<em>i}{\\dot{I}_i} = [r<\/em>{be} + (1+\\beta)R_e\/\/R_b]$$<br \/>\n$$R_o = R_c$$<br \/>\n\u73b0\u5728\u672a\u77e5\u91cf\u53ea\u6709\u4e24\u4e2a\uff0c$R_{be}$\u548c$R^\\prime_L$<br \/>\n\u5bf9\u4e8e\u524d\u8005\uff0c\u6709<br \/>\n$$r_{be} = \\frac{du_{BE}}{di_{B}} \\approx r_{bb^\\prime}+(1+\\beta)\\frac{26(mV)}{I_{EQ}}$$<br \/>\n\u5176\u4e2d\uff0c$r_{bb^\\prime}$ \u53ef\u4ee5\u8ba4\u4e3a\u662f $300\\Omega$<br \/>\n\u5bf9\u4e8e\u540e\u8005\uff1a<br \/>\n$$R^\\prime _L = R_c\/\/R_L$$<\/p>\n<h2>\u5171\u96c6\u7535\u6781\u653e\u5927\u7535\u8def<\/h2>\n<p>\u4fe1\u53f7\u7531\u53d1\u5c04\u6781\u5f15\u51fa\uff0c\u56e0\u6b64\u53eb<strong>\u5c04\u6781\u8f93\u51fa\u5668<\/strong><br \/>\n\u6c42\u89e3\u52a8\u6001\u53c2\u6570\uff1a<br \/>\n\u7535\u6d41\u653e\u5927\u500d\u6570\uff1a<br \/>\n$$\\dot{A}<em>i = -(1+\\beta)$$<br \/>\n\u7535\u538b\u653e\u5927\u500d\u6570\uff1a<br \/>\n$$\\dot{A}_u=\\frac{(1+\\beta)R^\\prime_e}{r<\/em>{be}+(1+\\beta)R^\\prime_e}$$<br \/>\n\u8f93\u5165\u7535\u963b\uff1a<br \/>\n$$R_i = [r_{be}+(1+\\beta)R^\\prime_e]\/\/R_b$$<br \/>\n\u8f93\u51fa\u7535\u963b\uff1a<br \/>\n$$R_o = \\frac{r_{be}+R^\\prime_s}{1+\\beta}\/\/R_e$$<br \/>\n<em>\u5176\u4e2d\uff0c\u6709<\/em><br \/>\n$$R^\\prime_e=R_e\/\/R_L$$<br \/>\n$$R^\\prime_s=R_s\/\/R_b$$<\/p>\n<h1>\u653e\u5927\u7535\u8def\u7684\u9891\u7387\u54cd\u5e94<\/h1>\n<h2>\u6982\u5ff5<\/h2>\n<h3>\u5e45\u9891\u76f8\u9891\u7279\u6027<\/h3>\n<p>$\\dot{A}_u = |\\dot{A}_u|(f)\\angle \\varphi(f)$<br \/>\n\u5176\u4e2d\uff0c$|\\dot{A}_u|(f)$ \u4e3a\u5e45\u9891\uff0c $\\varphi(f)$\u4e3a\u76f8\u9891<\/p>\n<h3>\u4e0a\u4e0b\u9650\u9891\u7387\u3001\u901a\u9891\u5e26<\/h3>\n<p>\u7535\u538b\u653e\u5927\u500d\u6570\u964d\u81f30.707\u500d\u4e2d\u9891\u7535\u538b\u653e\u5927\u500d\u6570\u65f6\u7684\u4f4e\u9891\u9891\u7387\u548c\u9ad8\u9891\u9891\u7387\u79f0\u4e3a\u901a\u9891\u5e26$BW$,\u6709$BW = f_H - f_L$<\/p>\n<h3>\u5931\u771f<\/h3>\n<ul>\n<li>\u5e45\u9891\u5931\u771f\uff1a\u653e\u5927\u7535\u8def\u5bf9\u8c10\u6ce2\u653e\u5927\u500d\u6570\u7684\u5e45\u503c\u4e0d\u540c<\/li>\n<li>\u76f8\u9891\u5931\u771f\uff1a\u4e24\u4e2a\u8c10\u6ce2\u901a\u8fc7\u653e\u5927\u7535\u8def\u7684\u76f8\u4f4d\u79fb\u4e0d\u540c<\/li>\n<\/ul>\n<h3>\u6ce2\u7279\u56fe<\/h3>\n<p>\u516c\u5f0f\uff1a<br \/>\n$$\\dot{A}<em>{us} \\approx \\frac{\\dot{A}<\/em>{usm}}{(1-j\\frac{f_L}{f})(1+j\\frac{f}{f_H})}$$<br \/>\n\u5176\u4e2d\uff0c\u4e2d\u9891\u7535\u538b\u589e\u76ca\uff1a$20lg|\\dot{A}_{usm}|$<\/p>\n<h1>\u529f\u7387\u653e\u5927\u7535\u8def\uff08\u8f93\u51fa\u7ea7\uff09<\/h1>\n<h2>OCL\u7532\u4e59\u7c7b\u4e92\u8865\u5bf9\u79f0\u7535\u8def\u5206\u6790<\/h2>\n<h3>\u529f\u7387<\/h3>\n<p>$$P_{OM} \\approx \\frac{(V_{cc}-U_{ces})^2}{2R_L}$$<\/p>\n<h3>\u6548\u7387<\/h3>\n<p>$$\\eta = \\frac{\\pi}{4} * \\frac{V_{cc} - U_{CES}}{V_{cc}}$$<\/p>\n<h1>\u96c6\u6210\u8fd0\u7b97\u653e\u5927\u7535\u8def<\/h1>\n<h2>\u504f\u7f6e\u7535\u8def<\/h2>\n<p>\u4f5c\u7528\uff1a\u5411\u5404\u653e\u5927\u7ea7\u63d0\u4f9b\u5408\u9002\u7684\u504f\u7f6e\u7535\u6d41\uff0c\u786e\u5b9a\u5404\u7ea7\u9759\u6001\u5de5\u4f5c\u70b9<\/p>\n<h2>\u8f93\u5165\u7ea7<\/h2>\n<h3>\u4e09\u79cd\u5f62\u5f0f<\/h3>\n<p><strong>\u57fa\u672c\u5f62\u5f0f<\/strong><br \/>\n- \u5dee\u6a21\u8f93\u5165\u7535\u538b\uff1a\u8f93\u5165\u7535\u538b\u5927\u5c0f\u76f8\u7b49\u3001\u6781\u6027\u76f8\u53cd<br \/>\n- \u5171\u6a21\u8f93\u5165\u7535\u538b\uff1a\u8f93\u5165\u7535\u538b\u5927\u5c0f\u76f8\u7b49\u3001\u6781\u6027\u76f8\u540c<br \/>\n- \u5171\u6a21\u6291\u5236\u6bd4\uff1a $K_{CMR} = 20lg|\\frac{A_d}{A_c}|$<br \/>\n  \u63cf\u8ff0\u5dee\u5206\u653e\u5927\u7535\u8def\u5bf9\u96f6\u70b9\u6f02\u79fb\u7684\u6291\u5236\u80fd\u529b \u8d8a\u5927\u8d8a\u5f3a<\/p>\n<p>\u5dee\u5206\u653e\u5927\u7535\u8def\u7684\u7279\u70b9\uff1a\u591a\u7528\u4e00\u4e2a\u653e\u5927\u7ba1\uff0c\u4e0d\u589e\u5927\u653e\u5927\u500d\u6570\uff0c\u589e\u5927\u5bf9\u96f6\u6f02\u7684\u6291\u5236<br \/>\n<strong>\u957f\u5c3e\u5f0f<\/strong><br \/>\n<strong>\u6052\u6d41\u6e90\u5f0f<\/strong><\/p>\n<h3>\u56db\u79cd\u63a5\u6cd5<\/h3>\n<table>\n<thead>\n<tr>\n<th>\u6027\u80fd<\/th>\n<th>\u53cc\u7aef\u8f93\u5165<br \/>\u53cc\u7aef\u8f93\u51fa<\/th>\n<th>\u53cc\u7aef\u8f93\u5165<br \/>\u5355\u7aef\u8f93\u51fa<\/th>\n<th>\u5355\u7aef\u8f93\u5165<br \/>\u53cc\u7aef\u8f93\u51fa<\/th>\n<th>\u5355\u7aef\u8f93\u5165<br \/>\u5355\u7aef\u8f93\u51fa<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>$A_d$<\/td>\n<td>$-\\frac{\\beta(R_c\/\/\\frac{R_L}{2})}{R+r_{be}}$<\/td>\n<td>$-\\frac{1}{2}\\frac{\\beta(R_c\/\/R_L)}{R+r_{be}}$<\/td>\n<td>$-\\frac{\\beta(R_c\/\/\\frac{R_L}{2})}{R+r_{be}}$<\/td>\n<td>$-\\frac{1}{2}\\frac{\\beta(R_c\/\/R_L)}{R+r_{be}}$<\/td>\n<\/tr>\n<tr>\n<td>$R_{id}$<\/td>\n<td>$2(R+r_{be})$<\/td>\n<td>$2(R+r_{be})$<\/td>\n<td>$\\approx 2(R+r_{be})$<\/td>\n<td>$\\approx 2(R+r_{be})$<\/td>\n<\/tr>\n<tr>\n<td>$R_o$<\/td>\n<td>$2R_c$<\/td>\n<td>$R_c$<\/td>\n<td>$2R_c$<\/td>\n<td>$R_c$<\/td>\n<\/tr>\n<tr>\n<td>$K_{CMR}$<\/td>\n<td>\u5f88\u9ad8<\/td>\n<td>\u8f83\u9ad8<\/td>\n<td>\u5f88\u9ad8<\/td>\n<td>\u8f83\u9ad8<\/td>\n<\/tr>\n<tr>\n<td>\u7279\u70b9<\/td>\n<td>$A_d$\u4e0e\u5355\u7ba1\u653e\u5927\u7535\u8def\u7684$A_u$\u57fa\u672c\u76f8\u540c<br \/>\u7406\u60f3\u72b6\u6001\u4e0b\uff0c$K_{CMR} \\to +\\infty$<br \/>\u9002\u7528\u4e8e\u8f93\u5165\u4fe1\u53f7\u548c\u8d1f\u8f7d\u7684\u4e24\u7aef\u5747\u4e0d\u63a5\u5730\u7684\u60c5\u51b5<\/td>\n<td>$A_d$\u7ea6\u4e3a\u53cc\u7aef\u8f93\u5165\u65f6\u7684\u4e00\u534a<br \/>\u7531\u4e8e\u5f15\u5165\u5171\u6a21\u8d1f\u53cd\u9988\uff0c\u4ecd\u6709\u8f83\u9ad8\u7684$K_{CMR}$<br \/>\u9002\u7528\u4e8e\u5c06\u53cc\u7aef\u8f93\u5165\u8f6c\u6362\u6210\u5355\u7aef\u8f93\u51fa<\/td>\n<td>$A_d$\u4e0e\u5355\u7ba1\u653e\u5927\u7535\u8def\u7684$A_u$\u57fa\u672c\u76f8\u540c<br \/>\u7406\u60f3\u72b6\u6001\u4e0b\uff0c$K_{CMR} \\to +\\infty$<br \/>\u9002\u7528\u4e8e\u5c06\u5355\u7aef\u8f93\u5165\u8f6c\u6362\u6210\u53cc\u7aef\u8f93\u51fa<\/td>\n<td>$A_d$\u7ea6\u4e3a\u53cc\u7aef\u8f93\u5165\u65f6\u7684\u4e00\u534a<br \/>\u7531\u4e8e\u5f15\u5165\u5171\u6a21\u8d1f\u53cd\u9988\uff0c\u4ecd\u6709\u8f83\u9ad8\u7684$K_{CMR}$<br \/>\u9002\u7528\u4e8e\u8f93\u5165\u3001\u8f93\u51fa\u5747\u8981\u6c42\u63a5\u5730\u7684\u60c5\u51b5<br \/>\u9009\u62e9\u4e0d\u540c\u7684\u7ba1\u5b50\u8f93\u51fa\uff0c\u53ef\u4ee5\u4f7f\u8f93\u51fa\u7535\u538b\u4e0e\u8f93\u5165\u7535\u538b\u53cd\u76f8<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\u4e2d\u95f4\u7ea7<\/h2>\n<p>\u4f5c\u7528\uff1a\u63d0\u4f9b\u8db3\u591f\u5927\u7684\u7535\u538b\u653e\u5927\u500d\u6570<\/p>\n<h2>\u8f93\u51fa\u7ea7<\/h2>\n<p>\u4f5c\u7528\uff1a\u63d0\u4f9b\u8db3\u591f\u7684\u8f93\u51fa\u529f\u7387\u4ee5\u6ee1\u8db3\u8d1f\u8f7d\u7684\u9700\u8981<\/p>\n<h1>\u53cd\u9988<\/h1>\n<h2>\u5b9a\u4e49<\/h2>\n<p>\u53cd\u9988\uff1a\u901a\u5e38\u662f\u6307\u5c06\u653e\u5927\u7535\u8def\u7684\u8f93\u51fa\u91cf\u6216\u8f93\u51fa\u91cf\u7684\u4e00\u90e8\u5206\uff0c\u901a\u8fc7\u4e00\u5b9a\u7684\u65b9\u5f0f\uff0c\u53cd\u9001\u5230\u653e\u5927\u7535\u8def\u7684\u8f93\u5165\u56de\u8def\u4e2d<\/p>\n<h2>\u5206\u7c7b\u548c\u5224\u65ad<\/h2>\n<h3>\u6b63\u8d1f\u53cd\u9988<\/h3>\n<p>\u6839\u636e\u53cd\u9988\u6781\u6027\u7684\u4e0d\u540c\uff0c\u53ef\u4ee5\u91c7\u7528<strong>\u77ac\u65f6\u6781\u6027\u6cd5<\/strong>\u5224\u65ad<\/p>\n<h3>\u76f4\u6d41\/\u4ea4\u6d41\u53cd\u9988<\/h3>\n<p>\u53ea\u5305\u542b\u76f4\u6d41\u6210\u5206\u53eb\u76f4\u6d41\u53cd\u9988\uff0c\u6709\u4ea4\u6d41\u6210\u5206\u53eb\u4ea4\u6d41\u53cd\u9988<\/p>\n<h3>\u7535\u538b\/\u7535\u6d41\u53cd\u9988<\/h3>\n<p>\u53cd\u9988\u4fe1\u53f7\u53d6\u81ea\u7535\u538b\u5c31\u662f\u7535\u538b\u53cd\u9988\uff0c\u540c\u7406\u3002<br \/>\n\u653e\u5927\u7535\u8def\u5f15\u5165\uff1a<br \/>\n\u7535\u538b\u8d1f\u53cd\u9988\uff0c\u4f7f\u5f97\u8f93\u51fa\u7535\u538b\u4fdd\u6301\u7a33\u5b9a\uff0c\u6548\u679c\u662f\u964d\u4f4e\u7535\u8def\u7684\u8f93\u51fa\u7535\u963b<br \/>\n\u7535\u6d41\u8d1f\u53cd\u9988\uff0c\u4f7f\u5f97\u8f93\u51fa\u7535\u6d41\u4fdd\u6301\u7a33\u5b9a\uff0c\u6548\u679c\u662f\u63d0\u9ad8\u7535\u8def\u7684\u8f93\u51fa\u7535\u963b<\/p>\n<p>\u5224\u5b9a\u7535\u538b\/\u7535\u6d41\u53cd\u9988\uff1a<br \/>\n\u5047\u8bbe\u8f93\u51fa\u7aef\u4ea4\u6d41\u77ed\u8def\uff0c\u67e5\u770b\u662f\u5426\u5b58\u5728\u53cd\u9988\u4fe1\u53f7\u3002\u82e5\u6709\uff0c\u5219\u662f\u7535\u6d41\u53cd\u9988\uff0c\u53cd\u4e4b\u662f\u7535\u538b\u53cd\u9988<\/p>\n<h3>\u4e32\u8054\/\u5e76\u8054\u53cd\u9988<\/h3>\n<p>\u53cd\u9988\u4fe1\u53f7\u4e0e\u8f93\u5165\u4fe1\u53f7\u7535\u538b\u6c42\u548c\u662f\u4e32\u8054\u53cd\u9988\uff0c<br \/>\n\u7535\u6d41\u6c42\u548c\u662f\u5e76\u8054\u53cd\u9988<\/p>\n<p>\u4e32\u8054\u53cd\u9988\uff1a\u589e\u5927\u7535\u8def\u7684\u8f93\u5165\u7535\u963b<br \/>\n\u5e76\u8054\u53cd\u9988\uff1a\u51cf\u5c0f\u7535\u8def\u7684\u8f93\u5165\u7535\u963b<\/p>\n<h2>\u53cd\u9988\u6846\u56fe\u4e0e\u4e00\u822c\u8868\u8fbe\u5f0f<\/h2>\n<blockquote><p>\n  \u5bf9$\\dot{F}$\u7684\u7406\u89e3<br \/>\n  $\\dot{F}=\\frac{\\dot{X}_f}{\\dot{X}_o}$<br \/>\n  \u5bf9\u4e8e\u8f93\u51fa\u7684\u91cf\u7eb2\uff0c\u53d6\u51b3\u4e8e\u7535\u8def\u53cd\u9988\u65b9\u5f0f\u662f\u7535\u538b(U)\u8fd8\u662f\u7535\u6d41(I)<br \/>\n  \u5bf9\u4e8e\u53cd\u9988\u7684\u91cf\u7eb2\uff0c\u53d6\u51b3\u4e8e\u53cd\u9988\u6c42\u548c\u65b9\u5f0f\u662f\u4e32\u8054(U)\u8fd8\u662f\u5e76\u8054(I)\n<\/p><\/blockquote>\n<h3>\u4e00\u822c\u8868\u8fbe\u5f0f<\/h3>\n<p>$$\\dot{A}_f=\\frac{\\dot{X}_o}{\\dot{X}_i}=\\frac{\\dot{A}}{1+\\dot{A}\\dot{F}}$$<br \/>\n\u5176\u4e2d\uff0c$\\dot{A}_f$\u4e3a\u95ed\u73af\u653e\u5927\u500d\u6570<br \/>\n\u5f53$|1+\\dot{A}\\dot{F}|>>1$,\u6709<br \/>\n$$\\dot{A}_f=\\frac{1}{\\dot{F}}$$<\/p>\n<h1>\u6a21\u62df\u4fe1\u53f7\u8fd0\u7b97\u7535\u8def<\/h1>\n<h2>\u7406\u60f3\u8fd0\u653e\u7684\u7279\u70b9<\/h2>\n<p>\u8d1f\u53cd\u9988\u5de5\u4f5c\u5728\u7ebf\u6027\u533a<\/p>\n<h3>\u7ebf\u6027\u533a<\/h3>\n<p>\u5de5\u4f5c\u5728\u7ebf\u6027\u533a\u6709\u7ebf\u6027\u653e\u5927\u5173\u7cfb<br \/>\n$$U_o=A_{od}(U_+ - U_-)$$<br \/>\n\u5176\u4e2d\uff0c$A_{od}$\u4e3a\u5f00\u73af\u5dee\u6a21\u7535\u538b\u589e\u76ca<br \/>\n\u5e76\u4e14\u6709\u4ee5\u4e0b\u7279\u70b9\uff1a<br \/>\n- \u7406\u60f3\u8fd0\u653e\u7684\u5dee\u6a21\u8f93\u5165\u7535\u538b\u7b49\u4e8e\u96f6($U_+ = U_-$) \u79f0\u4e3a<strong>\u865a\u77ed<\/strong><br \/>\n- \u7406\u60f3\u8fd0\u653e\u7684\u8f93\u5165\u7535\u6d41\u7b49\u4e8e\u96f6($i_+=i_-=0$) \u79f0\u4e3a<strong>\u865a\u65ad<\/strong><\/p>\n<h3>\u975e\u7ebf\u6027\u533a<\/h3>\n<p>\u6709\u4ee5\u4e0b\u7279\u70b9\uff1a<br \/>\n- \u7406\u60f3\u8fd0\u653e\u7684\u8f93\u51fa\u7535\u538b\u53ea\u6709$\\pm U_{opp}$<br \/>\n- \u7406\u60f3\u8fd0\u653e\u7684\u8f93\u5165\u7535\u6d41\u7b49\u4e8e\u96f6<\/p>\n<h2>\u6bd4\u4f8b\u8fd0\u7b97\u7535\u8def<\/h2>\n<h3>\u53cd\u76f8\u6bd4\u4f8b\u8fd0\u7b97\u7535\u8def<\/h3>\n<p>\u5b58\u5728<strong>\u865a\u5730<\/strong><\/p>\n<h3>\u540c\u76f8\u6bd4\u4f8b\u8fd0\u7b97\u7535\u8def<\/h3>\n<p>\u7406\u60f3\u8fd0\u653e\u6761\u4ef6\u4e0b\uff0c\u540c\u76f8\u6bd4\u4f8b\u8fd0\u7b97\u7535\u8def\u8f93\u5165\u7535\u963b\u4e3a$R_i\\to \\infty$<br \/>\n\u7279\u6b8a\u7684\u7535\u8def\uff1a\u7535\u538b\u8ddf\u968f\u5668<\/p>\n<h1>\u6ce2\u5f62\u53d1\u751f\u7535\u8def<\/h1>\n<h2>\u6b63\u5f26\u6ce2\u632f\u8361\u7535\u8def\u5206\u6790\u65b9\u6cd5<\/h2>\n<h3>\u4ea7\u751f\u6b63\u5f26\u6ce2\u6761\u4ef6<\/h3>\n<p>$$\\dot{A}\\dot{F} = 1$$<\/p>\n<h3>\u6b63\u5f26\u6ce2\u7535\u8def\u7ec4\u6210<\/h3>\n<p>\u56db\u4e2a\u90e8\u5206\uff1a<br \/>\n- \u653e\u5927\u7535\u8def<br \/>\n- \u53cd\u9988\u7f51\u7edc<br \/>\n- \u9009\u9891\u7f51\u7edc<br \/>\n- \u7a33\u5e45\u73af\u8282<\/p>\n<h3>\u5206\u6790\u6b65\u9aa4<\/h3>\n<ol>\n<li>\u7535\u8def\u662f\u5426\u6709\u6b63\u5f26\u6ce2\u632f\u8361\u7535\u8def\u7684\u57fa\u672c\u7ec4\u6210\u90e8\u5206\uff0c\u68c0\u67e5\u9759\u6001\u5de5\u4f5c\u70b9<\/li>\n<li>\u5224\u65ad\u662f\u5426\u6ee1\u8db3\u81ea\u6fc0\u632f\u8361\u6761\u4ef6<\/li>\n<li>\u4f30\u7b97\u632f\u8361\u9891\u7387\u548c\u8d77\u632f\u6761\u4ef6<\/li>\n<\/ol>\n<h2>RC\u6b63\u5f26\u6ce2\u632f\u8361\u7535\u8def<\/h2>\n<h3>RC\u4e32\u5e76\u8054\u7f51\u7edc\u632f\u8361\u7535\u8def\uff08\u6587\u6c0f\u7535\u6865\u632f\u8361\u7535\u8def\uff09<\/h3>\n<p>\u632f\u8361\u9891\u7387\uff1a<br \/>\n$$f_0 = \\frac{1}{2\\pi RC}$$<\/p>\n<h3>\u8d77\u632f\u6761\u4ef6<\/h3>\n<p>$$R_F > 2R^\\prime$$<\/p>\n<h2>LC\u6b63\u5f26\u6ce2\u632f\u8361\u7535\u8def<\/h2>\n<h3>\u9009\u9891\u7279\u6027<\/h3>\n<p>LC\u5e76\u8054\u8c10\u632f\u9891\u7387\uff1a\u5e76\u8054\u963b\u6297\u4e3a\u7eaf\u963b\u6027\u5e76\u4e14\u7b49\u6548\u963b\u6297\u4e3a\u6700\u5927\u503c<br \/>\n$$f_0 = \\frac{1}{\\sqrt{(\\frac{R}{\\omega_0L})^2+1}}*\\frac{1}{2\\pi\\sqrt{LC}}$$<br \/>\n\u6709\u54c1\u8d28\u56e0\u7d20$Q$<br \/>\n$$Q = \\frac{\\omega_0L}{R}$$<br \/>\n\u5f53$Q>>1$\u65f6\uff0c\u5b58\u5728<br \/>\n$$f_o \\approx \\frac{1}{2\\pi\\sqrt{LC}}$$<br \/>\n$$Q = \\frac{\\omega_0L}{R} \\approx \\frac{1}{R}\\sqrt{\\frac{L}{C}}$$<\/p>\n<h3>\u7535\u611f\u4e09\u70b9\u5f0f\u632f\u8361\u7535\u8def<\/h3>\n<p>\u5f53$Q$\u503c\u5f88\u9ad8\u65f6\uff0c\u53ef\u4ee5\u8ba4\u4e3a<br \/>\n$$f_o \\approx \\frac{1}{2\\pi\\sqrt{LC}} = \\frac{1}{2\\pi\\sqrt{(L_1+L_2+2M)C}}$$<\/p>\n<h3>\u7535\u5bb9\u4e09\u70b9\u5f0f\u632f\u8361\u7535\u8def<\/h3>\n<p>$$f_o \\approx \\frac{1}{2\\pi\\sqrt{LC}} = \\frac{1}{2\\pi\\sqrt{L\\frac{C_1C_2}{C_1+C_2}}}$$<\/p>\n<h2>\u975e\u6b63\u5f26\u6ce2\u53d1\u751f\u7535\u8def<\/h2>\n<h3>\u77e9\u5f62\u6ce2\u53d1\u751f\u7535\u8def<\/h3>\n<p>\u632f\u8361\u5468\u671f\uff1a<br \/>\n$$T=2RCln(1+\\frac{2R_1}{R_2})$$<\/p>\n<h3>\u4e09\u89d2\u6ce2\u53d1\u751f\u7535\u8def<\/h3>\n<p>\u632f\u8361\u5468\u671f\uff1a<br \/>\n$$T=\\frac{4R_4CU_{om}}{U_z} = \\frac{4R_1R_4C}{R_2}$$<\/p>\n<h1>\u76f4\u6d41\u7535\u6e90<\/h1>\n<h2>\u76f4\u6d41\u7535\u6e90\u7ec4\u6210<\/h2>\n<p>\u7535\u6e90\u53d8\u538b\u5668\u3001\u6574\u6d41\u7535\u8def\u3001\u6ee4\u6ce2\u5668\u3001\u7a33\u538b\u7535\u8def<\/p>\n<p>\u5269\u4e0b\u7684\u6ca1\u4ec0\u4e48\u9700\u8981\u8bb0\u7684\u4e86<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u7eea\u8bba \u6a21\u62df\u4fe1\u53f7\u4e0e\u6570\u5b57\u4fe1\u53f7\u533a\u522b \u534a\u5bfc\u4f53\u5668\u4ef6 \u534a\u5bfc\u4f53\u7684\u7279\u6027 \u534a\u5bfc\u4f53\u5b9a\u4e49\uff1a\u901a\u5e38\u5c06\u5bfc\u7535\u80fd\u529b\u4ecb\u4e8e\u5bfc\u4f53\u548c\u7edd\u7f18\u4f53\u4e4b\u95f4\u7684\u4e00\u5927\u7c7b\u7269\u8d28\u6210\u4e3a\u534a\u5bfc\u4f53 \u672c\u5f81 &#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"emotion":"","emotion_color":"","title_style":"","license":"","footnotes":""},"categories":[2],"tags":[],"class_list":["post-361","post","type-post","status-publish","format-standard","hentry","category-schoolwork"],"_links":{"self":[{"href":"https:\/\/yin.nnneri.me\/index.php?rest_route=\/wp\/v2\/posts\/361","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/yin.nnneri.me\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/yin.nnneri.me\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/yin.nnneri.me\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/yin.nnneri.me\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=361"}],"version-history":[{"count":25,"href":"https:\/\/yin.nnneri.me\/index.php?rest_route=\/wp\/v2\/posts\/361\/revisions"}],"predecessor-version":[{"id":390,"href":"https:\/\/yin.nnneri.me\/index.php?rest_route=\/wp\/v2\/posts\/361\/revisions\/390"}],"wp:attachment":[{"href":"https:\/\/yin.nnneri.me\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=361"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/yin.nnneri.me\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=361"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/yin.nnneri.me\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=361"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}