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这种振荡器的电路示如下图。其作原理是:当 R_(b1)C_1和 R_(b2)C_2足够大时,振荡频率 f 只由 R_1C_1和 R_2C_2决定。当-Vcc 加上时,BG_1发射极在某电位,经过 BG_1给电容充电,BG_1在饱和状态,C 的充电电流维持 BG_2在截止状态。当电流减小时,BG_2自截止状态进入导电状态。在 C 上的电压现作用等于 BG_2的集电极电压。
The circuit of this oscillator is shown below. The principle is: when R_ (b1) C_1 and R_ (b2) C_2 are large enough, the oscillation frequency f is only determined by R_1C_1 and R_2C_2. When -Vcc is added, the emitter of BG_1 is at a certain potential, the capacitor is charged by BG_1, BG_1 is in saturation, and the charging current of C is maintained at BG_2 in the off state. When the current decreases, BG_2 from the cut-off state into the conductive state. The voltage at C now acts equal to the collector voltage of BG_2.