STM32F103C8T6: Low-Power Design Tips & Medical Application Cases

STM32F103C8T6 Low-Power Design Techniques and Case Studies

In battery-powered or low-energy applications, the STM32F103C8T6 provides a variety of power management modes, such as Sleep, Stop, and Standby. Proper use of these modes can significantly reduce system power consumption and extend battery life.

STM32F103C8T6 Power Mode Analysis

 •Sleep mode: Only shuts down the CPU, while peripherals continue to run;

 •Stop mode: Shuts down most clocks, while retaining RAM contents;

 •Standby Mode: Lowest power consumption, wakes up only on external events or the RTC.

 •The combination of Stop mode and RTC wakeup is very common in IoT sensors and remote measurement devices.

Practical Tips for Low-Power Design for the STM32F103C8T6

 •Clock Optimization: Switch to a Low-Speed Clock During Idle Times;

 •Peripheral Management: Promptly shut down unused peripherals to avoid unnecessary current consumption;

 •Power Supply Design: Choosing an LDO or DCDC Power supply, improving efficiency;

Interrupt wakeup: Reduce polling and rely more on interrupt mechanisms.

Case Study: Application of the STM32F103C8T6 in Portable Medical Devices

Portable blood glucose meters and ECG monitoring devices often use the STM32F103C8T6 as the core MCU. Through low-power mode management, the entire device's standby current can be controlled to tens of microamperes, meeting the needs of long standby periods.