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    • 2. 发明授权
    • Bipolar logic circuit having two multi-emitter transistors with an
emitter of one connected to the collector of the other to prevent
saturation
    • 双极逻辑电路具有两个多发射极晶体管,其发射极连接到另一个的集电极以防止饱和
    • US4697102A
    • 1987-09-29
    • US737872
    • 1985-05-28
    • Takahiro OkabeMakoto HayashiKatuhiro MorisuyeTomoyuki WatanabeKatsuyoshi WashioSetsuo OguraMakoto FurihataShizuo Kondo
    • Takahiro OkabeMakoto HayashiKatuhiro MorisuyeTomoyuki WatanabeKatsuyoshi WashioSetsuo OguraMakoto FurihataShizuo Kondo
    • H03K19/00H03K19/013H03K19/082
    • H03K19/001H03K19/013
    • A logic circuit is provided which includes a first multi-emitter transistor with its emitters coupled to a group of first input lines and a first transistor with its base coupled to the collector of said first multi-emitter transistor. A second transistor is also provided with its base coupled to the collector of said first transistor, said second transistor having a polarity opposite to that of said first multi-emitter transistor. A second multi-emitter transistor is connected with its base coupled to the collector of said second transistor and with its emitters coupled to a group of second input lines, and a third transistor is connected with its base coupled to the collector of said second multi-emitter transistor and with its collector coupled to an output line. The collector of said first multi-emitter transistor is coupled to the emitter of said second multi-emitter transistor in order to absorb minority carriers stored in the transistors. This feature significantly improves the circuit operating speed. A further feature is the provision of a logic circuit which is highly integrated and which consumes reduced amounts of electric power, while maintaining high-speed performance of the TTL circuit, by substituting a multi-collector transistor that reversely operates for an inverter portion of the TTL circuit.
    • 提供了一种逻辑电路,其包括第一多发射极晶体管,其发射极耦合到一组第一输入线,第一晶体管的基极耦合到所述第一多发射极晶体管的集电极。 第二晶体管还设置有其基极耦合到所述第一晶体管的集电极,所述第二晶体管具有与所述第一多发射极晶体管的极性相反的极性。 第二多发射极晶体管与其基极耦合,耦合到所述第二晶体管的集电极,并且其发射极耦合到一组第二输入线,并且第三晶体管与其基极连接,耦合到所述第二多晶体管的集电极, 发射极晶体管,其集电极耦合到输出线。 所述第一多发射极晶体管的集电极耦合到所述第二多发射极晶体管的发射极,以便吸收存储在晶体管中的少数载流子。 该功能显着提高了电路工作速度。 另一个特征是提供了一种高度集成的逻辑电路,并且通过将反向工作的多集电极晶体管替换为逆变器部分的多集电极晶体管,同时维持TTL电路的高速性能,从而消耗了较少的电功率 TTL电路。
    • 6. 发明授权
    • Complementary Schottky transistor logic circuit
    • 互补肖特基晶体管逻辑电路
    • US4433258A
    • 1984-02-21
    • US245163
    • 1981-03-18
    • Kenji KanekoTakahiro OkabeMinoru NagataYutaka Okada
    • Kenji KanekoTakahiro OkabeMinoru NagataYutaka Okada
    • H03K19/082H03K19/091H03K19/092H03K19/088
    • H03K19/0915H03K19/082
    • A logic circuit is provided which includes a plurality of basic circuits each of which has a pnp (or npn) transistor as a constant current load and at least one npn (or pnp) transistor each as a driver with a clamping Schottky diode. The base of the driver transistor is used as an input terminal and the collector thereof is used as an output terminal, for each basic circuit and the output terminal of the preceding stage basic circuit is coupled directly to the input terminal of the subsequent stage basic circuit. In order to prevent current hogging the load current supplied from the preceding stage constant current load transistor is set to operate the subsequent stage driver transistor in a saturation made when the subsequent stage driver transistor is in the ON state.
    • 提供了一种逻辑电路,其包括多个基本电路,每个基本电路具有作为恒定电流负载的pnp(或npn)晶体管和每个具有钳位肖特基二极管的驱动器的至少一个npn(或pnp)晶体管)。 驱动晶体管的基极用作输入端子,其集电极用作输出端子,对于每个基本电路,前级基本电路的输出端子直接耦合到后级基本电路的输入端子 。 为了防止电流偏移,设定从前一级恒流负载晶体管提供的负载电流,以使后级级驱动晶体管处于导通状态时产生的饱和度使后级级驱动晶体管工作。