论文部分内容阅读
在发射极电路中带有定时电容的单稳多谐振荡器,与目前惯用的同类电路相比,虽有许多优点,但现在使用得并不广泛。原因在于这种电路存在着一些较难克服的缺点。下面介绍的电路在某种程度上减少和克服了这些缺点。在间歇时 T_1导通,T_2截止。当输入一个脉冲时 T_1反转,T_2由于 C_(21)的关系变成导通。对准稳态来说,C_E 的负载使 T_1截止。此后电路又弛张回到静止状态,开始复原过程。在电压为
The monostable multivibrator with timing capacitors in the emitter circuit has many advantages over similar circuits of today, but is not currently used in a wide range of applications. The reason is that this circuit has some difficult to overcome the shortcomings. The circuits described below to some extent reduce and overcome these shortcomings. In the intermittent T_1 conduction, T_2 ends. When a pulse is input, T_1 reverses and T_2 becomes conductive due to C_ (21). For steady state, the load of C_E turns T_1 off. After that, the circuit relaxes again to a standstill and begins the recovery process. The voltage is