Power management circuit and embedded wireless wafer temperature measuring device with same

By designing a power management circuit that combines battery power and wireless power supply in the wireless wafer temperature measurement device, the problem of insufficient battery power is solved, power conservation and system stability are achieved, and the usage time is extended.

CN120601598APending Publication Date: 2025-09-05XIAN HEQI OPTICAL TEST TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202510645350.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-05-19
Publication Date
2025-09-05

AI Technical Summary

Technical Problem

The battery capacity of the wireless wafer temperature measurement device is limited, resulting in insufficient usage time.

Method used

A power management circuit is designed that combines a battery power module and a wireless power module. Wireless power is used first and switches to battery power when the wireless power module is disconnected to ensure that the microcontroller is not disconnected from power.

Benefits of technology

Effectively save battery power, increase usage time, and ensure stable system operation.

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Abstract

The invention discloses a power management circuit and an embedded wireless wafer temperature measuring device with the same, and relates to the technical field of power management. The power management circuit comprises a battery power supply module and a wireless power supply module, a first end of the battery power supply module is connected with a first end of the wireless power supply module, and a second end of the battery power supply module and a second end of the wireless power supply module are respectively connected with a microcontroller; the wireless power supply module is used for supplying power to the microcontroller; the battery power supply module is used for supplying power to the microcontroller when the wireless power supply module disconnects the wireless power supply access. The power supply management circuit can ensure that the microcontroller is not powered off, the whole system operates stably, the electric quantity of a battery is effectively saved, and the service time is prolonged.
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