公开(公告)号：US09588539B2

公开(公告)日：2017-03-07

申请号：US14785349

申请日：2014-04-02

申请人： China Electronic Technology Corporation, 24th Research Institute

发明人： Rong-Ke Ye ,  Can Zhu ,  Gnag-Yi Hu ,  Lei Zhang ,  Rong-Bin Hu ,  Yu-Han Gao ,  Zheng-Ping Zhang ,  Yong-Lu Wang ,  Guang-Bing Chen

IPC分类号： G05F3/24 ,  G05F3/30 ,  G05F3/26

CPC分类号： G05F3/242 ,  G05F3/262 ,  G05F3/30

摘要： A band-gap reference circuit includes a proportioned current generating circuit, a startup circuit, a current mirror circuit, a high-order temperature compensation generating circuit and a reference generating circuit. The proportioned current generating circuit is configured to generate a current in direct proportion to the absolute temperature. The startup circuit is configured to start up the proportioned current generating circuit when the startup circuit is power on. The current mirror circuit is configured to reproduce a current which is the same as the current in direct proportion to the absolute temperature. The high-order temperature compensation generating circuit is configured to generate a compensation current of high-order temperature coefficient. The reference generating circuit is configured to add the voltage which is generated by the proportioned current generating circuit to a voltage of negative temperature coefficient according to a certain proportion, and output a reference voltage of zero temperature coefficient.

摘要翻译： 带隙基准电路包括比例电流产生电路，启动电路，电流镜电路，高阶温度补偿发生电路和基准发生电路。 成比例的电流产生电路被配置为产生与绝对温度成正比的电流。 启动电路被配置为在启动电路接通电源时启动成比例的电流产生电路。 电流镜电路被配置为再现与绝对温度成正比的电流相同的电流。 高阶温度补偿发生电路被配置为产生高阶温度系数的补偿电流。 参考产生电路被配置为根据一定比例将由比例电流产生电路产生的电压加到负温度系数的电压，并输出零温度系数的参考电压。