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21. 发明授权

US07411358B2 Inverter circuit, backlight assembly, and liquid crystal display with backlight assembly 失效
标题翻译：逆变电路，背光组件和带背光组件的液晶显示器
公开(公告)号：US07411358B2
公开(公告)日：2008-08-12
申请号：US11521111
申请日：2006-09-14
申请人： Tatsuhisa Shimura , Takashi Kinoshita
发明人： Tatsuhisa Shimura , Takashi Kinoshita
IPC分类号： H05B41/14
CPC分类号： H05B41/2822 , H05B41/245
摘要： In an inverter circuit for a backlight assembly, a first sinusoidal voltage and a second sinusoidal voltage having an opposite polarity to that of the first sinusoidal voltage are applied across terminals of 2n CCFLs. Each of respective primary coils of n first balance transformers are connected in series with corresponding first terminals of a first set of n CCFLs from the 2n CCFLs. Each of respective primary coils of n second balance transformers are connected in series with corresponding first terminals of a second set of n CCFLs from the 2n CCFLs. The secondary coils of the first balance transformers and the secondary coils of the second balance transformers are connected in series with each other to form a loop. Accordingly, the backlight assembly makes it easy to troubleshoot a failure in the CCFLs.
摘要翻译：在用于背光组件的逆变器电路中，在2n个CCFL的端子之间施加具有与第一正弦电压相反极性的第一正弦电压和第二正弦电压。 n个第一平衡变压器的各个初级线圈中的每一个与来自2n CCFL的第一组n CCFL的相应的第一端串联连接。 n个第二平衡变压器的各个初级线圈中的每一个与来自2n CCFL的第二组n CCFL的相应的第一端串联连接。第一平衡变压器的次级线圈和第二平衡变压器的次级线圈彼此串联连接以形成环路。因此，背光组件使得易于排除CCFL中的故障。

22. 发明授权

US5642064A Voltage to current conversion circuit including a differential amplifier 失效
标题翻译：电压到电流转换电路包括差分放大器
公开(公告)号：US5642064A
公开(公告)日：1997-06-24
申请号：US675368
申请日：1996-07-02
申请人： Tatsuhisa Shimura
发明人： Tatsuhisa Shimura
IPC分类号： H03F3/45 , G05F1/56 , H02M11/00
CPC分类号： G05F1/561
摘要： An accurate V/I conversion circuit converts an input voltage to an electric current which includes an external resistance in series with an input voltage V1. The external resistance is directly coupled to an input terminal of the V/I conversion circuit. V/I conversion circuit includes an input terminal coupled to the external resistance which is in series with the input voltage V1. V/I conversion circuit also includes (1) a resistance type voltage dividing circuit which generates a standard voltage by dividing a supply voltage, (2) a differential amplifier circuit comprising two transistors which compares a voltage of the input terminal with the standard voltage, (3) a third transistor which receives the collector voltage of one of the transistors in the differential amplifier where the third transistor is also connected between the input terminal and ground with a resistor in series, and (4) a fourth transistor which receives a collector voltage of one of the transistors of the differential amplifier. The fourth transistor is also connected between the supply voltage and the ground with a resistance in series. The output current flows through the fourth transistor. The V/I conversion circuit can be formed in an integrated circuit.
摘要翻译：精确的V / I转换电路将输入电压转换为包括与输入电压V1串联的外部电阻的电流。外部电阻直接耦合到V / I转换电路的输入端。 V / I转换电路包括耦合到与输入电压V1串联的外部电阻的输入端子。 V / I转换电路还包括（1）通过分压电源电压产生标准电压的电阻型分压电路，（2）包括将输入端子的电压与标准电压进行比较的两个晶体管的差分放大电路，（3）第三晶体管，其接收所述差分放大器中的一个晶体管的集电极电压，其中所述第三晶体管也以串联的电阻器连接在所述输入端子和地之间;以及（4）第四晶体管，其接收集电极差分放大器的晶体管之一的电压。第四晶体管也以电阻串联连接在电源电压和地之间。输出电流流过第四晶体管。 V / I转换电路可以形成在集成电路中。

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