Multi-battery parallel charging circuit and method, and wearable device having multi-battery parallel charging circuit
A charging method and technology for wearable devices, applied to battery circuit devices, circuit devices, collectors, etc., can solve problems such as overcharging or slow charging, slow charging, etc., improve reliability, reliable charging mechanism, and reduce after-sales maintenance costs Effect
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Embodiment 1
[0065] Such as Figure 4 As shown, the multi-battery parallel charging circuit of the present invention is proposed. In some embodiments, the system can charge two or more batteries in parallel or sequentially. The system is in terminal equipment, including wearable equipment. For example, in this application, a wristwatch is used as an example. It is independent of the system of the terminal equipment, and adopts an additional small packaged separate device, which is packaged together with the main battery and the said wearable device. In the accommodated space of the wearable device.
[0066] Based on the characteristics of wearable devices, for the ultra-thin and beautiful design of the product, but also limited by the size of the product, during use, since the main battery usually cannot fully meet the needs of users, it is necessary to add an additional auxiliary battery to To improve battery life, this application is based on such a problem. In the existing ultra-thin w...
Embodiment 2
[0081] Such as Figure 6 As shown, a multi-battery parallel charging method specifically includes:
[0082] Step S1: detect whether the charging current of each path is greater than the distribution threshold;
[0083] Step S2: If yes, output a control signal to control the current of the path to be less than or equal to the allocation threshold.
[0084]Specifically: step S1 also includes step S11: detecting whether the charging current of each channel is greater than the distribution threshold, and further including: setting a rechargeable threshold for the battery allocation of the current channel according to the capacity of each channel battery according to preset rules.
[0085] Specifically: step S2 includes step S21: the output control signal, controlling the current of the channel to be less than or equal to the allocation threshold, further including: detecting whether the charging current of the current channel is greater than the rechargeable threshold, if greater...
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