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1. 发明申请

WO2004081688A1 CURRENT MIRROR 审中-公开
标题翻译：目前的镜子
公开(公告)号：WO2004081688A1
公开(公告)日：2004-09-23
申请号：PCT/IB2004/050172
申请日：2004-03-01
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , VEENSTRA, Hugo , HURKX, Godefridus, A., M. , BREKELMANS, Johannes, H., A. , VAN GOOR, Dave, W.
发明人： VEENSTRA, Hugo , HURKX, Godefridus, A., M. , BREKELMANS, Johannes, H., A. , VAN GOOR, Dave, W.
IPC分类号： G05F3/26
CPC分类号： H03F3/3432 , G05F3/265
摘要： Current mirror generating a constant mirror ration comprising a bias current generator (12). The bias current generator (12) generates a bias current (Ib) in a bias conductor connected to the base of the output transistor (T out) and is controlled by the output voltage (U out) at the collector of the output transistor (T out). The purpose of the bias current generator (12) is to prevent an avalanche base current from affecting the base-emitter voltage of the output transistor (T out) and thereby increase the output current. The output transistor (T out) may thus be operated with collector-emitter voltages exceeding the breakdown voltage BVCEO without affecting the accuracy of the current mirror. The bias current generator (12) is further adapted to generating no bias current (Ib) until the output voltage (U out) has reached a predetermined value, thus reducing the power dissipation at low output voltages.
摘要翻译：电流镜产生包括偏置电流发生器（12）的恒定镜像比。偏置电流发生器（12）在连接到输出晶体管（T out）的基极的偏置导体中产生偏置电流（Ib），并由输出晶体管（T）的集电极处的输出电压（U out）控制出）。偏置电流发生器（12）的目的是防止雪崩基极电流影响输出晶体管的基极 - 发射极电压（T out），从而增加输出电流。因此，输出晶体管（T out）可以在超过击穿电压BVCEO的集电极 - 发射极电压下工作，而不会影响电流镜的精度。偏置电流发生器（12）还适于不产生偏置电流（Ib），直到输出电压（U out）达到预定值，从而降低在低输出电压下的功率消耗。

2. 发明申请

WO2004081687A1 CURRENT MIRROR 审中-公开
标题翻译：目前的镜子
公开(公告)号：WO2004081687A1
公开(公告)日：2004-09-23
申请号：PCT/IB2004/050169
申请日：2004-03-01
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , VEENSTRA, Hugo , HURKX, Godefridus, A., M. , BREKELMANS, Johannes, H., A. , VAN GOOR, Dave, W.
发明人： VEENSTRA, Hugo , HURKX, Godefridus, A., M. , BREKELMANS, Johannes, H., A. , VAN GOOR, Dave, W.
IPC分类号： G05F3/26
CPC分类号： G05F3/265
摘要： The present invention relates to Current mirror for generating a constant mirror ratio, comprising an output transistor (T ou t) having a base, an emitter and a collector, wherein a current flowing through the collector of said output transistor (T out ) constitutes an output current (l out ) of said current mirror and the collector of said output transistor (T out ) is connectable to an output circuit, a buffer transistor having a base, an emitter and a collector, wherein the emitter of the buffer transistor is connected to the base of the output transistor, a buffer current source for providing a fixed buffer current, wherein said buffer current source is connected to the collector of the buffer transistor, and a buffer base voltage control means having an input connected to the base of the output transistor and an output connected to the base of the buffer transistor, wherein the base voltage control means is adapted to controlling a voltage at the base of the buffer transistor in response to a current at the input of the buffer base voltage control means.
摘要翻译：本发明涉及用于产生恒定镜面比例的电流镜，其包括具有基极，发射极和集电极的输出晶体管（Tout），其中流过所述输出晶体管（Tout）的集电极的电流构成输出电流（所述电流镜的反射镜和所述输出晶体管（Tout）的集电极可连接到输出电路，具有基极，发射极和集电极的缓冲晶体管，其中所述缓冲晶体管的发射极连接到所述输出晶体管的基极输出晶体管，用于提供固定缓冲电流的缓冲电流源，其中所述缓冲电流源连接到缓冲晶体管的集电极，以及缓冲器基极电压控制装置，其具有连接到输出晶体管的基极的输入端和输出端连接到缓冲晶体管的基极，其中基极电压控制装置适于响应于控制缓冲晶体管的基极处的电压到缓冲器基极电压控制装置的输入端的电流。

3. 发明申请

WO2005022752A1 DIFFERENTUIAL CHARGE PUMP WITH COMMON MODE CONTROL 审中-公开
标题翻译：具有共同模式控制的不同充电泵
公开(公告)号：WO2005022752A1
公开(公告)日：2005-03-10
申请号：PCT/IB2004/051412
申请日：2004-08-06
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , SANDULEANU, Mihai, A., T. , VAN GOOR, Dave, W.
发明人： SANDULEANU, Mihai, A., T. , VAN GOOR, Dave, W.
IPC分类号： H03L7/089
CPC分类号： H03L7/0896 , H03L7/087 , H03L7/10 , H03L2207/06
摘要： Charge pump for providing an output current for charging and discharging a filter in accordance with an input signal, said charge pump comprising a first current source connectable with the input signal for driving the current source and adapted to providing a first current equal to a constant current Io plus a variable current Δx, said variable current Δx being directly proportional to the input signal, a second current source connectable with the input signal for driving the current source and adapted to providing a second current equal to the constant current I 0 minus said variable current Δx, and an output for providing the output current, wherein said output is connected to both the first and second current source in such a way, that the output current is equal to a difference between the first and second current.
摘要翻译：电荷泵，用于根据输入信号提供用于对滤波器进行充电和放电的输出电流，所述电荷泵包括可与输入信号连接的第一电流源，用于驱动电流源并适于提供等于恒定电流的第一电流 Io加上可变电流Deltax，所述可变电流Deltax与输入信号成正比，第二电流源可与输入信号连接，用于驱动电流源，并适于提供等于恒定电流I0减去所述可变电流的第二电流 Deltax和用于提供输出电流的输出，其中所述输出以这样的方式连接到第一和第二电流源，使得输出电流等于第一和第二电流之间的差。

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