A technique to compensate the variation in power supply for microcontrollers to improve system tolerance and temperature drift for applications based on analog measurement
In the case of microcontrollers (MCU), Analog to Digital Converter (ADC) plays an important role in capturing real time information. For getting the accurate measurement from the ADC, there is a need for the system to have an accurate power supply. The ADC accuracy of the system can also be increased by improving the voltage reference to the ADC, if any. Normally, a low cost MCU does not have precision voltage reference internally. The present paper provides a technique to compensate the variation in power supply for microcontrollers. This technique also minimizes system tolerance and temperature drift and hence improves Analog to Digital converter accuracy. This technique improves load and line regulation of the system. Hence the system which is comprised of a regulator and a low cost voltage reference is capable of producing a good voltage reference for the ADC and thus increasing the reliability of the system.
Nitin Agarwal Nikhil Gupta
STMicroelectronics Pvt.Ltd., India
国际会议
The Eighth International PCIM China(第八届电子功率器件、智能传送、电源质量国际研讨会)
上海
英文
204-208
2009-06-02（万方平台首次上网日期，不代表论文的发表时间）