专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US06744304B2 Circuit for generating a defined temperature dependent voltage 有权
标题翻译：用于产生定义的温度相关电压的电路
公开(公告)号：US06744304B2
公开(公告)日：2004-06-01
申请号：US10234078
申请日：2002-09-03
申请人： Jens Egerer , Heiko Fibranz , Eckehard Plaettner
发明人： Jens Egerer , Heiko Fibranz , Eckehard Plaettner
IPC分类号： G05F322
CPC分类号： G05F3/225
摘要： An electronic circuit for generating an output voltage has a defined temperature dependence, a bandgap circuit for generating a defined temperature-constant voltage and a temperature-dependent current with a defined temperature dependence, and a conversion circuit for generating the output voltage from the temperature-dependent current and the temperature-constant voltage. The conversion circuit has a first resistor at whose first terminal the temperature-constant voltage is applied, and whose second terminal is connected to a first terminal of a second resistor. The second terminal of the second resistor is connected to a supply voltage potential, and a first terminal of a third resistor is connected to the second terminal of the first resistor. The temperature-dependent current is supplied to a second terminal of the third resistor, and it being possible to tap the output voltage at the second terminal of the third resistor.
摘要翻译：用于产生输出电压的电子电路具有确定的温度依赖性，用于产生限定的温度恒定电压的带隙电路和具有确定的温度依赖性的依赖于温度的电流，以及用于从温度依赖性产生输出电压的转换电路，依赖电流和温度恒定电压。转换电路具有第一电阻器，其第一端子施加温度恒定电压，并且其第二端子连接到第二电阻器的第一端子。第二电阻器的第二端子连接到电源电压电位，第三电阻器的第一端子连接到第一电阻器的第二端子。温度相关电流被提供给第三电阻器的第二端子，并且可以抽出第三电阻器的第二端子处的输出电压。

2. 发明授权

US06462526B1 Low noise bandgap voltage reference circuit 有权
标题翻译：低噪声带隙电压参考电路
公开(公告)号：US06462526B1
公开(公告)日：2002-10-08
申请号：US09920441
申请日：2001-08-01
申请人： Gabriel Eugen Tanase
发明人： Gabriel Eugen Tanase
IPC分类号： G05F322
CPC分类号： G05F3/30
摘要： A bandgap reference adds two bipolar transistors to the conventional bandgap voltage reference. One of these added transistors is Darlington configured with one of the two bipolar transistors used in a conventional bandgap reference, and the other added transistor is configured similarly with the other bipolar transistor used in a conventional bandgap voltage reference. The configuration is such that a portion of the currents that flow into the collector terminal of the two bipolar transistors of the conventional bandgap reference circuit are diverted away to the respective collector terminals of the added transistors. In different embodiments, the bandgap reference also includes two diode-connected bipolar transistors, or alternatively two resistors, coupled between respective emitters of the bipolar transistors used in the conventional bandgap reference and the respective added bipolar transistors. Different areas of emitters for the bipolar transistor are disclosed, to divert more or less current from the conventionally used bipolar transistors, and to achieve different noise profiles for the bandgap reference.
摘要翻译：带隙基准将两个双极晶体管添加到传统的带隙电压基准。这些添加的晶体管中的一个是达林顿配置为在常规带隙基准中使用的两个双极晶体管中的一个，另一个添加的晶体管被配置为与常规带隙电压基准中使用的另一双极晶体管类似。该结构使得流入常规带隙基准电路的两个双极晶体管的集电极端子的电流的一部分被转移到加入的晶体管的各个集电极端子。在不同的实施例中，带隙基准还包括耦合在常规带隙基准中使用的双极型晶体管的各个发射极之间的两个二极管连接的双极晶体管，或者两个电阻，以及相应的相加的双极晶体管。公开了用于双极晶体管的不同发射极区域，以便从常规使用的双极晶体管转移更多或更少的电流，并为带隙基准实现不同的噪声分布。

3. 发明授权

US06288526B1 Voltage down converter for multiple voltage levels 有权
标题翻译：降压转换器用于多个电压电平
公开(公告)号：US06288526B1
公开(公告)日：2001-09-11
申请号：US09583323
申请日：2000-05-30
申请人： Robert A. Olah
发明人： Robert A. Olah
IPC分类号： G05F322
CPC分类号： G05F1/465
摘要： A voltage regulator circuit in an integrated circuit (IC) device such as a Complex Programmable Logic Device (CPLD) comprises a reference voltage generator, a tuning circuit, and an output driver circuit. The reference voltage generator converts an external supply voltage provided to the IC device into a stable reference voltage. The tuning circuit converts the stable reference voltage into a desired internal supply voltage, such as the reduced voltage required by deep sub-micron transistors. The output driver circuit provides the desired internal supply voltage with sufficient current to properly power the circuits of the IC device. The tuning circuit includes an op-amp and resistive elements configured in a voltage divider configuration in the negative feedback loop of the op-amp. The output of the op-amp can be set to the desired internal supply voltage by properly sizing the resistive elements. By making at least one of the resistive elements adjustable, a variable internal supply voltage can be provided by the voltage regulator circuit.
摘要翻译：诸如复合可编程逻辑器件（CPLD）的集成电路（IC）器件中的稳压器电路包括参考电压发生器，调谐电路和输出驱动器电路。参考电压发生器将提供给IC器件的外部电源电压转换为稳定的参考电压。调谐电路将稳定的参考电压转换成所需的内部电源电压，例如深亚微米晶体管所需的降低的电压。输出驱动器电路为所需的内部电源电压提供足够的电流以正确地为IC器件的电路供电。调谐电路包括在运算放大器的负反馈环路中以分压器配置配置的运算放大器和电阻元件。通过适当调整电阻元件的尺寸，可以将运算放大器的输出设置为所需的内部电源电压。通过使电阻元件中的至少一个可调，可以由电压调节器电路提供可变的内部电源电压。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式