会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 18. 发明授权
    • Amplifier feedforward arrangement and method for enhanced frequency
response
    • 用于增强频率响应的放大器前馈布置和方法
    • US5903190A
    • 1999-05-11
    • US889910
    • 1997-07-10
    • Milton Luther EmbreeRobert Frederick Lee
    • Milton Luther EmbreeRobert Frederick Lee
    • H03F3/343H03F3/345H03F1/00H03F3/68
    • H03F3/345H03F3/3437
    • Embodiments of the invention include an amplifier having an enhanced feedforward arrangement. In a typical operational amplifier output stage of this type, conventional feedforward arrangements comprise one or more active electrical components coupled between the second stage amplifying transistor and the negative output driver. The enhanced feedforward arrangement includes a resistor connected between the second stage amplifying transistor and the negative voltage source and a second resistor connected between the second stage amplifying transistor and the negative output driver. Alternatively, a capacitor is connected in parallel with the second resistor. In this manner, feedforward arrangements according to embodiments of the invention advantageously provide stable, enhanced frequency response, including high frequency response, e.g., above approximately 10 kHz, using economically advantageous passive rather than active electrical components. Furthermore, feedforward arrangements according to embodiments of the invention typically require less components than conventional feedforward arrangements, making them further advantageous from an economic standpoint.
    • 本发明的实施例包括具有增强的前馈布置的放大器。 在这种典型的运算放大器输出级中,常规的前馈布置包括耦合在第二级放大晶体管和负输出驱动器之间的一个或多个有源电气元件。 增强的前馈装置包括连接在第二级放大晶体管和负电压源之间的电阻器以及连接在第二级放大晶体管和负输出驱动器之间的第二电阻器。 或者,电容器与第二电阻器并联连接。 以这种方式,根据本发明的实施例的前馈布置有利地使用经济上有利的被动而不是有源电气部件来提供稳定的,增强的频率响应,包括高频响应,例如高于大约10kHz。 此外,根据本发明的实施例的前馈布置通常比常规的前馈布置要求较少的组件,从经济的观点来看,其进一步有利。
    • 20. 发明授权
    • Device for controlling an output circuit of an integrated circuit
    • 用于控制集成电路的输出电路的装置
    • US4734595A
    • 1988-03-29
    • US908673
    • 1986-09-17
    • Geard Le RouxMarius Reffray
    • Geard Le RouxMarius Reffray
    • H03F1/02H03F3/34H03F3/343H03F3/347H03K3/26H03K17/60
    • H03F1/0238H03F3/3437
    • The present invention relates to a method for controlling a Darlington type circuit comprising a main transistor and an auxiliary transistor forming part of an integrated circuit, this control method allowing to reduce consumption, and with this purpose, the control transistor of the Darlington type circuit is connected, not as in classical schemas to the power supply voltage V.sub.CC but to an auxiliary voltage V..sub.AUX which, in the case if the drawing is higher than V.sub.CC be a quantity of about V.sub.BE1 +V.sub.BE2 -V.sub.CE1, V.sub.BE1 and V.sub.BE2 being the base-emitter voltages of the main transistor and of the auxiliary transistor and V.sub.CE1 being the collector-emitter voltage of the main transistor and preferably this auxiliary voltage is obtained from the power supply V.sub.CC by a continuous-continuous converter forming part of the same integrated circuit as the Darlington type circuit.
    • 本发明涉及一种用于控制达林顿型电路的方法,该方法包括形成集成电路的一部分的主晶体管和辅助晶体管,该控制方法允许降低消耗,并且为达此目的,达林顿型电路的控制晶体管为 连接,而不是在经典模式中与电源电压VCC相关,而是辅助电压V.AUX,如果绘图高于VCC,则为大约VBE1 + VBE2-VCE1的量,VBE1和VBE2为基极 主晶体管和辅助晶体管的发射极电压和VCE1是主晶体管的集电极 - 发射极电压,优选地,该辅助电压通过连续连续转换器从电源VCC获得,该连续转换器形成与 达林顿型电路。