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1. 发明专利

JPS6180916A Phase synchronizing loop circuit 失效
标题翻译：相位同步环路电路
公开(公告)号：JPS6180916A
公开(公告)日：1986-04-24
申请号：JP20167084
申请日：1984-09-28
申请人： Hitachi Ltd
发明人： YUMOTO MASA , YOSHINO RYOZO , KINOSHITA MASASHI
IPC分类号： H03L7/06
摘要： PURPOSE: To obtain a titled circuit which is strong against the variation of a power supply voltage without increasing a manufacturing process, by constituting said circuit so that a current control is based on GND as a reference, and a phase comparing output does not depend on the power supply voltage.
CONSTITUTION: A logical output is limited by connecting diodes D
11 , D
12 to the emitter of a transistor Q
11 for outputting a phase comparing voltage, so that it is not influenced by a variation of a power source. Also, by using a PNP transistor Q
24 for governing a current of a current/oscillation frequency converting circuit, the potential is determined, based on GND as a reference so that it is not influenced by a variation of a power supply voltage, a DC stabilizing resistance R
32 is inserted, and an amplitude and a DC feedback quantity are increased to the same extent as a baseemitter voltage VBE of the transistor Q
24 . In this way, the base potential of the PNP transistor Q
24 comes not to have a power supply dependent property, and a current dependent property of the current/oscillation frequency converting circuit is improved.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：通过构成所述电路，使得电流控制基于GND作为参考，获得对电源电压变化强的标题电路，而不增加制造工艺，并且相位比较输出不依赖于电源电压。构成：逻辑输出受限于将二极管D11，D12连接到晶体管Q11的发射极，用于输出相位比较电压，使其不受电源变化的影响。此外，通过使用用于控制电流/振荡频率转换电路的电流的PNP晶体管Q24，基于GND作为参考来确定电位，使得其不受电源电压的变化的影响，DC稳定电阻R32被插入，并且振幅和DC反馈量增加到与晶体管Q24的基极发生器电压VBE相同的程度。以这种方式，PNP晶体管Q24的基极电位不具有电源依赖性，并且提高了电流/振荡频率转换电路的电流依赖特性。

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