• 2022-06-15
     电容三点式振荡器如图[tex=2.071x1.0]9utR16H0dkrRUD60XchLcp3EvOaj4njvHFvfM5+gsHI=[/tex] 所示, 已知 [tex=1.429x1.0]Ex4wpJIxD8l62cC55OycrA==[/tex] 谐振回路的空载品质因数[tex=2.571x1.214]KS+wKhXPPXd7ppYdobrTWQ==[/tex], 晶体管的输出 电导 [tex=7.286x1.429]CBVlFUSa2Ph/o1c5PYQWn6az5f/old3tq0BqRiZeOOVGyLUANwpztGzbQ20Eclkd9igpA+jySoIj0Ho+geO3cA==[/tex], 输入电导 [tex=7.357x1.429]ewi9McMfw6oqhbwOWwtPTnLJXzl477j9a41uGkaKarjPbquqbrQ7Ri9PIPNxSC8pIC727q+vzPBMqOFKMTvIDQ==[/tex] 试求该振荡器的振荡频率 [tex=0.857x1.214]VOhpUZGmsyFK9/GlBHBkQg==[/tex], 并验证 [tex=5.143x1.286]eGZgXNTrc3m5m3liyQiGeyRn/dvKIgUjPPAly4+gbh+x2E+DLdwH8MrdT3e+9TnB[/tex] 时,电路能否起振[img=414x305]17d6bc8de6c0857.png[/img]