| 摘要 |
PURPOSE:To obtain the good oscillation by supplying the bias current to a pair of transistors forming a monostable multivibrator through the switching element pair provided across the capacitor which is inserted between the emitters of the transistor pair. CONSTITUTION:For a pair of transistors Q1 and Q2, the collector of one TR is connected to the base of the other TR. And capacitor C is provided between the emitters of those two emitters to form a monostable multivibrator. A pair of switching elements TRsQ7 and Q8 are connected across capacitor C and then turned on and off in accordance with ON and OFF of TRsQ1 and Q2, and the bias current is supplied a pair of TRsQ1 and Q2 through elements Q7 and Q3. Thus a sufficient amount of bias current can be supplied via capacitor C, securing the good oscillation for both TRsQ1 and Q2. |
