Automatic duty adjusting circuit
专利汇可以提供Automatic duty adjusting circuit专利检索，专利查询，专利分析的服务。并且PURPOSE: To always keep the width of a high pulse and a low pulse equal to each other by inputting a rectangular wave outputted from a differential amplifier to a reference side via a limiter circuit and an integration circuit and applying feedback control to the outputted rectangular wave.
CONSTITUTION: The circuit consists of a couple of transistors(TRs) 4, 5 and the emitters are connected to a constant current source 3 to form a differential amplifier. When a sinusoidal wave 1 outputted from an oscillator or the like is inputted to a base of the TR 4, a base potential of the TR 5 is an ON/OFF potential of the differential amplifier, a rectangular wave 2 is outputted from the collector of the TR 5, a high level potential of the rectangular wave 2 is specified by a resistor 6 and the amplitude of the rectangular wave 2 is specified by a resistor 7. On the other hand, a limiter circuit receivers the rectangular wave 2 and converts the wave into a rectangular wave 9 whose positive and negative amplitudes around an optical reference potential are equal and the result is outputted to an integration circuit 10, which smoothes the rectangular wave 9 and detects its mean voltage and it is inputted to a base of the TR 5. Thus, the width of a high pulse and a low pulse is always kept equal to each other.
COPYRIGHT: (C)1991,JPO&Japio，下面是Automatic duty adjusting circuit专利的具体信息内容。
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