物聯網無線充電感測器

專利類型

發明

專利國別 (專利申請國家)

中華民國

專利申請案號

109123725

專利證號

I 759794

專利獲證名稱

物聯網無線充電感測器

專利所屬機關 (申請機關)

淡江大學學校財團法人淡江大學

獲證日期

2022/04/01

技術說明

The purpose of this patent is to enable the sensor to capture weak energy such as microwave, piezoelectric, or thermoelectricity in the RF band (mainly the 2.4GHz band, but not limited to this band), through a capture circuit (Harvester) or a rectifier (Rectifier) the above mentioned energies are converted into a small voltage. Afterwards, the input low voltage is boosted by a transformer in the first stage to convert it into an effective primary storage energy. The design of this sensor can also be paired with an external device (HUB). It performs target search, ID confirmation, and wireless power transfer directly even under complete power failure. The design of this sensor provides a mechanism for automatically selecting the transformer conversion ratio in response to a wide range of possible power changes under complete power failure. When the primary energy storage reaches a predetermined voltage, an RFID-like ID confirmation is performed, and furthermore the boost of the second stage can be performed via booster's DC/DC conversion. The former provides ID confirmation for the external device(HUB), and the latter will continue to charge super-capacitor or micro-lithium battery (the final energy storage) to fulfil energy harvest and later application of low-power electronic products.

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