试求题5-2-1图所示电路在开关闭合后的零状态响应电流[tex=1.5x1.357]uqsLBmYKn0ATFAxnBOZVtg==[/tex][img=347x208]17d413559c70eca.png[/img]
解 此题可用一阶电路 在正弦激励下的三要索法求解。首先用相重法计箅强制分量[tex=1.929x1.429]8b7F+ddBCHO/B/O29tmCXGfKvawc9dpm9gHG938947M=[/tex],设[tex=7.143x1.429]XHHGxSXtjGyCgKx1ZNlfjlokBWimzZYb/JGLa0NQc+A52iUL73ZCP3JiANmsP+wZ[/tex]，相悬电路见解题5-2-1图。[img=296x215]17d4137ff30f878.png[/img][tex=14.5x2.429]dS6vDttr9A2ecbFwX4yC4o9etd4OZwRYlvsbE4+Y7JLG4tRjXO9SMZLIDVxCQGNhl3BfDr0L3yxUDhKpu19JepOAiPGFSSvJXal9aSo04oM=[/tex]总阻抗[tex=17.0x2.571]As4uWj1m+rmhZ+RiYESgMTzP9gNYXPh5EhwKlemzbqfsRhD78Xq7GFT/X+SUCpz6vrxe6q6aurda2EM5Xc4ZuPYmIKlLqq4bAXy7GkZkTeA=[/tex][tex=19.143x2.857]LTnDf4PAVLvI0KI8ZMh51ENIfF7mY3s1fuN/N6CiBnaRt71WtssKif/O/jt4BCOgofo7Lt+S05pMfpo6UYu/og4j/tUwVAZSjfYef536VX3GDgVUUD2Mij22k5VE1N7/OEWiVzGBtCUJRjfHVbvcqq7cMPKwbT+2bUCVCmwOqfqiujhW5qZvmJ9oI2RYhAia[/tex][tex=6.714x1.214]oYFBIALO5oVw/BQ4A68wn5PQqrCDI2BVc4HYvzyWekE=[/tex][tex=13.5x1.357]YGQGhc5kP9CBFMCeLHtJ4QgW3yqL+BOp+ZtzBk4YnQcKtJ375F8PwlaaXRDf9o2sSIY6+a0ZsyW8f3YvM932WQ==[/tex]计算时间常数[tex=6.143x1.357]QCID5nyoNzqEZPj8jvjSGhGyc4GJIQjHpTYOFJDZ2keEoV+ngYneWJVPWeqaHNcVaObGqBlh5KcBbiioQ2nViA==[/tex]如下：[tex=21.143x2.429]Ts8k4WCXg1SLWg/7se3u4c801iM8JUcHOf/bRxqtCxcwMWJQUvNvTaUNUfv9rG/+Zgyo9Sh+kumB9+DeSxWxtZdCLrO3yVmeerTDUeOh5F42e6z0wOT3uJzJkh76Ip56[/tex][tex=16.929x1.357]/6v537A+RjoJRzyuyna592OzlVhc3D5uOGBojvVEOnW9FUF4C+pYu9OYNwPEXq6LmAczPPceQja0en3eiS8uJg==[/tex][tex=7.857x1.357]/UIHlKuqJdqBFGyAzpTLCtMuiG5t2PXLWSxGkZrm61Qc+dRBkyX2bZtU3OGGjvK5[/tex]由题意可将以上计算结果代入三要素法公式[tex=14.786x1.571]p7lK/aExnlzlgM+UY9hX342ovPFqYBYyrt7DYQxn5EV+T79rmwUP7YpbrxzqQGWoPUwDZXeybUspnd8+OVpLa/wY2O+yR6OZcKmPPqGDYWAvrtORwDOWO3RI2W6gqAyy[/tex][tex=17.857x2.286]kL9d1wSzxHQMHprt2ypTLNhX3tT0EctBbQ6l9csJTa0WVwcJdkW7Q7q6BrIGbWascaPOSuqcqNtgJFhc0nS1IMYNtTYOn6MqY+YvUWuTKONmC/DwZKaMz3X9Hfj+lT2mtlPo0iMqqZlOgqyBzHE1Lg==[/tex]
举一反三
- 试求题4. 16图所示电路的零状态响应[tex=1.5x1.357]uqsLBmYKn0ATFAxnBOZVtg==[/tex]。[img=399x254]17d373ef18adbdd.png[/img]
- 题4-26图所示电路在开关断开前处于稳定状态,试求开关断开后的响应[tex=1.5x1.357]uqsLBmYKn0ATFAxnBOZVtg==[/tex]。[img=307x234]17d384674a8c6a7.png[/img]
- 试求题4-21图所示电路中的电流[tex=1.5x1.357]uqsLBmYKn0ATFAxnBOZVtg==[/tex]。设换路前电路处于稳定状态。[img=513x259]17d380e15365316.png[/img]
- 试求题3.33图所示电路的零状态响应[tex=2.214x1.357]nyMP0A3OXgzcgj1woGpPjg==[/tex]。[img=470x243]17d319d07e16e7e.png[/img]
- 试求题 4-14图所示电路的零状态响应[tex=1.714x1.357]LQDjhWLbNBGk2tb5pbSofQ==[/tex]。[img=376x257]17d372db8251879.png[/img]
内容
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试求题9-11图所示电路的零状态响应[tex=1.714x1.357]LQDjhWLbNBGk2tb5pbSofQ==[/tex]。[img=272x247]17d50529dfe537f.png[/img]
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求题9 18图所示电路的零状态响应[tex=1.714x1.357]LQDjhWLbNBGk2tb5pbSofQ==[/tex]。[img=338x231]17d507608dd0680.png[/img]
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试求题4-15图所示电路的零状态响应[tex=1.714x1.357]LQDjhWLbNBGk2tb5pbSofQ==[/tex],并画出它的曲线。[img=439x281]17d3732f8c959d5.png[/img]
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题 5.7图所示电路中, t=0 时, 开关 S 合上。已知电初始值为零, 求[tex=2.214x1.357]1AMJFyCvvNeY8zBoMwketg==[/tex]和 [tex=1.5x1.357]4oplQ+uBNX3MZ46HijPjsQ==[/tex] 。[img=258x192]17cfeea6292d9f1.png[/img]
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在题7-6(a)图所示电路中，激励[tex=1.714x1.357]LQDjhWLbNBGk2tb5pbSofQ==[/tex]为含有一直流分量和一正弦交变分量的周期函数,其周期为6.28μs,波形如题7-6(6)图所示。试求响应[tex=1.5x1.357]uqsLBmYKn0ATFAxnBOZVtg==[/tex]和[tex=2.071x1.357]g1QkHMNmfq98JrBxthMdHg==[/tex]。[img=813x271]17d4b3b2e06b895.png[/img]