一个0.6V100mV的下落电容低的LDO,用于能源采集系统的220nA
Yuting Zhang1,2, Qianhui Ge1,2, Yanhan Zeng1,2
1School of Electronics and Communication Engineering, Guangzhou University, Guangzhou 510000, China.
Micromachines
|May 27, 2023
概括
本文介绍了用于能源采集的高效低泄漏调节器 (LDO). 它实现了100mV的下降电压和nA级静电,优化了对能源受限制设备的功率管理.
科学领域:
- 集成电路设计 集成电路设计
- 电力管理电子产品 电力管理电子产品
- 采集能源的技术 收集能源的技术
背景情况:
- 低掉电调节器 (LDO) 对于电子系统中稳定的电力供应至关重要.
- 有效的电力管理对于能源采集应用来说至关重要,以最大限度地利用可用的能源.
- 现有的LDO经常与高静止电流和掉落电压作斗争,限制其在低功率场景中的使用.
研究的目的:
- 提出并模拟一个完全集成的,高效的LDO,适用于能源采集.
- 为了实现最小的掉电压和超低静止电流,以提高能源效率.
- 在不同的负载条件下增强LDO的稳定性和短暂响应.
主要方法:
- 没有额外的放大器的新型散装调制技术被用来降低值电压.
- 使用自适应功率晶体管来动态调整LDO拓在2阶段和3阶段配置之间.
- 实现了一个带有边界的自适应偏差来优化短暂响应并确保稳定性.
- 该设计是使用180纳米CMOS工艺模拟的.
主要成果:
- 实现了100mV的低输出电压和0.6V的供应电压.
- 证明了220 nA的超低静止电流.
- 在充满负载条件下达到99.958%的高电流效率.
- 报告了优异的负载调节 (0.0059 mV/mA),线路调节 (0.4879 mV/V) 和 -51 dB的电源排斥比率 (PSRR).
结论:
- 拟议的LDO设计为能源采集系统的效率和低功耗运行提供了显著的进步.
- 采用的创新技术有效地降低掉落电压和静电,同时保持稳定性和性能.
- 这种LDO非常适合无电池应用和由环境能源供电的设备,为更可持续的电子产品铺平了道路.
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