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公开(公告)号：US4801892A
公开(公告)日：1989-01-31
申请号：US94375
申请日：1987-09-09
CPC分类号： G05F3/265
摘要： A current mirror circuit of the present invention has the structure that the diode-connected second transistor is connected in series to the first transistor, the third and fourth transistors have bases which are respectively connected to the bases of the first and second transistors which are connected in series, and the collector of the fifth transitors, whose emitter and base are connected between the base and collector of the first transistor, is connected to the collector of the fourth transistor.
摘要翻译： 本发明的电流镜电路具有二极管连接的第二晶体管与第一晶体管串联连接的结构，第三和第四晶体管具有分别连接到连接到第一和第二晶体管的基极的基极 并且其发射极和基极连接在第一晶体管的基极和集电极之间的第五输出器的集电极连接到第四晶体管的集电极。
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公开(公告)号：US4825104A
公开(公告)日：1989-04-25
申请号：US102418
申请日：1987-09-29
CPC分类号： H03K5/2418
摘要： A comparator which sets the comparison level depending on the number of transistors used easily ascertains the relative accuracy of the load resistors, is suitable for integration and improves the relative accuracy of input DC biases.
摘要翻译： 比较器根据使用的晶体管数量设置比较电平容易确定负载电阻的相对精度，适用于集成，并提高输入直流偏置的相对精度。
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公开(公告)号：US4804927A
公开(公告)日：1989-02-14
申请号：US91608
申请日：1987-08-31
CPC分类号： H03F3/343
摘要： A current amplifier circuit has a first transistor with a collector and a base which are electrically connected, a second transistor connected in series with the first transistor and having a collector and a base which are electrically connected. A third and fourth transistor are connected in series with the collector of the first transistor connected to a base of the third transistor and the collector of the second transistor connected to a base of the fourth transistor through a resistor having a resistance R. The first, second, third and fourth transistors have the same polarity. An amplified output signal current R.multidot.i/R.sub.E is obtained from a collector of the third transistor, wherein R.sub.E is the emitter resistance of the fourth transistor and i is the input signal applied to the base of the fourth transistor.
摘要翻译： 电流放大器电路具有与集电极和基极电连接的第一晶体管，与第一晶体管串联连接并具有电连接的集电极和基极的第二晶体管。 第三和第四晶体管与连接到第三晶体管的基极的第一晶体管的集电极串联连接，第二晶体管的集电极通过具有电阻R的电阻连接到第四晶体管的基极。第一， 第二，第三和第四晶体管具有相同的极性。 从第三晶体管的集电极获得放大的输出信号电流Rxi / RE，其中RE是第四晶体管的发射极电阻，i是施加到第四晶体管的基极的输入信号。
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4.发明授权Current amplifier circuit and a current amplifying type differential current converter circuit 失效电流放大电路和电流放大型差动电流转换电路
公开(公告)号：US4859966A
公开(公告)日：1989-08-22
申请号：US94374
申请日：1987-09-09
CPC分类号： H03F3/45071 , H03F3/343
摘要： A current amplifier circuit includes a first, second, third and fourth transistor, each having the same polarity. The first transistor is connected in series with the second transistor and both have the collector and base thereof electrically connected. The third and fourth transistors are connected in series and the fourth transistor has a resistor connected between the base and collector. The third transistor has its base connected to the collector of the first transistor. A bias current is applied to the collector of the first transistor and an input current to be amplified is applied to the base of the fourth transistor. An amplified output current is obtained across the collector to emitter of the third transistor. In a differential amplifier circuit, a fifth transistor having the same polarity is connected with its base connected to the collector of the fourth transistor through a resistor. Additionally a resistor is connected between the base of the third transistor and the collector of the first transistor. The differential current outputs are taken across the third transistor and fifth transistor.
摘要翻译： 电流放大器电路包括具有相同极性的第一，第二，第三和第四晶体管。 第一晶体管与第二晶体管串联连接，并且其集电极和基极都电连接。 第三和第四晶体管串联连接，第四晶体管具有连接在基极和集电极之间的电阻。 第三晶体管的基极连接到第一晶体管的集电极。 偏置电流施加到第一晶体管的集电极，并且要放大的输入电流被施加到第四晶体管的基极。 跨越第三晶体管的集电极到发射极获得放大的输出电流。 在差分放大电路中，具有相同极性的第五晶体管通过电阻与第四晶体管的集电极连接。 另外，电阻器连接在第三晶体管的基极和第一晶体管的集电极之间。 差分电流输出通过第三晶体管和第五晶体管。
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