Patent ID: 11911154
Assignee: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 3:
4. The blood oxygen saturation detection system according to claim 3, wherein the CC2640 core processor further comprises a power supply module, and the power supply module comprises a CR2032 button battery power supply module and a battery boost power supply module, wherein the CR2032 button battery power supply module is configured to provide a fixed voltage, and the battery boost power supply module is configured to raise the fixed voltage provided by the CR2032 button battery power supply module to a required voltage for circuit operation,
the battery boost power supply module is a TPS61070DDCR3.3V boost module, an input end of the TPS61070DDCR3.3V boost module is connected to an output end of the CR2032 button battery power supply module, the TPS61070DDCR3.3V boost module is configured to raise the fixed voltage provided by the CR2032 button battery power supply module to 3.3V, a 3.3V voltage output end of the TPS61070DDCR3.3V boost module is connected to a voltage input VCC port of the CC2640 core processor module, and a 1.8V voltage output end of the TPS61070DDCR3.3V boost module is connected to a voltage input port of the front-end flexible blood oxygen saturation detection circuit,
the CC2640 core processor further comprises a 3.3V decoupling module, the 3.3V decoupling module is configured to be connected to an output end of the TPS61070DDCR3.3V boost module such that coupling noise of a 3.3V output voltage is reduced, and the 3.3V decoupling module is formed by three 100 nF chip capacitors connected in parallel.