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    • 3. 发明申请
    • TEMPERATURE ADAPTIVE BANDGAP REFERENCE CIRCUIT
    • 温度自适应带宽参考电路
    • US20130314068A1
    • 2013-11-28
    • US13637237
    • 2011-02-28
    • Shaowei ZhenPing LuoRuhui YangKang YangBo Zhang
    • Shaowei ZhenPing LuoRuhui YangKang YangBo Zhang
    • G05F3/16
    • G05F3/16G05F3/30Y10S323/907
    • This invention involves a bandgap reference circuit in IC. The temperature coefficient of conventional bandgap reference is large and the higher order compensation is difficult to implement. This invention provides an adaptive compensated bandgap reference which solves the problem only using lower order (first order) temperature coefficient compensation. The invention adopts segmental compensation circuit to realize adaptive segmental compensation of bandgap reference with low temperature coefficient. The technical solution includes traditional bandgap voltage reference circuit and adaptive feedback compensation circuit which consists of sample and hold circuit, voltage comparator and control module. This invention controls the bandgap voltage reference through systematical view and it has high process compatibility. This invention can find the best temperature characteristic curve adaptively, the output voltage has low temperature coefficient, meeting the requirement of fabrication process, the implementation is simple with small area. This invention relates to integrated circuits.
    • 本发明涉及IC中的带隙基准电路。 常规带隙基准的温度系数大,难以实现较高阶补偿。 本发明提供了一种仅使用低阶(一阶)温度系数补偿来解决问题的自适应补偿带隙基准。 本发明采用分段补偿电路,实现低温系数带隙参考自适应分段补偿。 技术方案包括传统的带隙电压参考电路和自适应反馈补偿电路,由采样保持电路,电压比较器和控制模块组成。 本发明通过系统的方式控制带隙电压参考,并具有较高的工艺兼容性。 本发明可以自适应地找到最佳的温度特性曲线,输出电压温度系数低,满足制造工艺要求,实现面积小。 本发明涉及集成电路。
    • 5. 发明授权
    • Circuit for generating reference voltage of semiconductor memory apparatus
    • 用于产生半导体存储装置的参考电压的电路
    • US08111058B2
    • 2012-02-07
    • US12169545
    • 2008-07-08
    • Dong-Keum Kang
    • Dong-Keum Kang
    • G05F3/16
    • G11C5/147Y10S323/907
    • A reference voltage generating circuit in a semiconductor memory apparatus comprises a driving control signal generating unit configured to generate a driving control signal according to a temperature variation, wherein the driving control signal generating unit is enabled in response to a power-up signal, a driving unit configured to control a voltage level, which is applied to a voltage transfer node, in response to the power-up signal and the driving control signal, and a reference voltage generating unit configured to generate a reference voltage when a voltage level on the voltage transfer node is higher than a predetermined voltage level.
    • 半导体存储装置中的参考电压产生电路包括:驱动控制信号生成单元,被配置为根据温度变化产生驱动控制信号,其中驱动控制信号生成单元响应于上电信号而被使能,驱动 单元,被配置为响应于上电信号和驱动控制信号来控制施加到电压传输节点的电压电平;以及参考电压产生单元,被配置为当电压上的电压电平时产生参考电压 传输节点高于预定电压电平。
    • 8. 发明申请
    • Curvature Compensated Bandgap Voltage Reference
    • 曲率补偿带隙电压基准
    • US20100301832A1
    • 2010-12-02
    • US12498947
    • 2009-07-07
    • Vipul KATYALMark RUTHERFORD
    • Vipul KATYALMark RUTHERFORD
    • G05F3/16
    • G05F3/30Y10S323/907
    • Embodiments of the present invention include systems and methods for generating a curvature compensated bandgap voltage reference. In an embodiment, a curvature compensated bandgap reference voltage is achieved by injecting a temperature dependent current at different points in the bandgap reference voltage circuit. In an embodiment, the temperature dependent current is injected in the proportional to absolute temperature (PTAT) and complementary to absolute temperature (CTAT) current generation block of the bandgap circuit. Alternatively, or additionally, the temperature dependent current is injected at the output stage of the bandgap circuit. In an embodiment, the temperature dependent current is a linear piecewise continuous function of temperature. In another embodiment, the temperature dependent current has opposite dependence on temperature to that of the bandgap voltage reference before curvature compensation.
    • 本发明的实施例包括用于产生曲率补偿带隙电压参考的系统和方法。 在一个实施例中,通过在带隙参考电压电路中的不同点注入与温度相关的电流来实现曲率补偿带隙基准电压。 在一个实施例中,以与绝对温度(PTAT)成正比并且与带隙电路的绝对温度(CTAT)电流产生块互补的温度依赖电流被注入。 或者或另外,在带隙电路的输出级注入与温度相关的电流。 在一个实施例中,温度依赖电流是温度的线性分段连续函数。 在另一个实施例中,温度依赖电流与曲率补偿之前的带隙电压基准的温度相反。
    • 10. 发明授权
    • Temperature compensating circuit
    • 温度补偿电路
    • US07692476B2
    • 2010-04-06
    • US11846417
    • 2007-08-28
    • Ryoichi Anzai
    • Ryoichi Anzai
    • H03K3/42
    • G05F3/16Y10S323/907
    • Provided is a temperature compensating circuit, which conducts a temperature correction having a continuous characteristic, and is small in the circuit scale. An output voltage VOUT at a connection point 14 is determined on the basis of a current Ia2, a current Ib2, and a current Ic2, and an output voltage of a temperature sensor circuit is corrected by the output voltage VOUT with a temperature. As a result, the temperature correction having the continuous characteristic is conducted on the basis of a current change of the current Ia2, the current Ib2, and the current Ic2. Because the plural temperature compensating circuits are not provided, and only one temperature compensating circuit is provided, the circuit scale becomes smaller.
    • 提供一种温度补偿电路,其进行具有连续特性的温度校正,并且电路规模小。 基于电流Ia2,电流Ib2和电流Ic2确定连接点14处的输出电压VOUT,并且温度传感器电路的输出电压由输出电压VOUT校正。 结果,具有连续特性的温度校正基于电流Ia2,电流Ib2和电流Ic2的电流变化进行。 由于不设置多个温度补偿电路,只提供一个温度补偿电路,所以电路规模变小。