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发明授权
CN108073209B 一种带隙基准电路 有权

一种带隙基准电路
摘要：
一种带隙基准电路，包括：启动模块、输出模块、带隙核心模块，带隙核心模块具有参考点，参考点的电压与输出模块的输出信号关联，带隙基准电路还包括控制模块，适于控制带隙核心模块和输出模块在低功耗模式和正常工作模式之间切换，在带隙核心模块处于低功耗模式时，从检测时刻开始检测参考点的电压，并根据参考点的电压产生低功耗控制信号或者正常模式控制信号，低功耗控制信号使得带隙核心模块和输出模块处于低功耗模式，正常模式控制信号使得带隙核心模块和输出模块处于正常工作模式；其中，检测时刻是根据上一次带隙核心模块处于低功耗模式的持续时间确定得到的。上述方案可降低带隙基准电路的功耗，同时节省设计成本。
摘要（英）：

A bandgap reference circuit and method of using the same are provided. The bandgap reference circuit includes a startup component; an output component; and a bandgap core component coupled there-between. The bandgap core component includes a reference point having a voltage associated with an output signal of the output component. A controller is configured for controlling the bandgap core component and the output component to switch between a low power consumption mode and a normal operation mode based on the voltage at the reference point. When the bandgap core component and the output component operate in the normal operation mode, the bandgap reference circuit outputs a stable voltage and has a first power consumption. When the bandgap core component and the output component operate in the low power consumption mode, the bandgap reference circuit has a second power consumption less than the first power consumption.

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