Electric toothbrush circuit supporting brush head replacement reminding

Abstract

The invention discloses an electric toothbrush circuit supporting brush head replacement reminding. The electric toothbrush circuit comprises a wireless charging circuit, a power supply circuit, a main control circuit and a motor driving circuit. The circuits form an electric toothbrush control circuit, so that the characteristics of different brushing frequency control of a brush head, brush head replacement reminding, wireless charging of a battery and various excellent control are realized, and the electric toothbrush circuit has good application prospect and market effect.

Description

technical field [0001] The invention belongs to the field of consumer electronic products, and in particular relates to an electric toothbrush circuit supporting brush head replacement reminders. Background technique [0002] Electric toothbrush is a new product that has appeared in recent years, and it has set off a revolution in the field of oral health care abroad. Though electric toothbrush is not still popularized in the application of my country, existing people's prediction, it will become the important a member in the popular health products. Surveys show that electric toothbrushes are more scientific and effective than ordinary toothbrushes. Can more thoroughly remove dental plaque, reduce gingivitis and gingival hemorrhage, also be the generally popular daily necessities of present European and American many countries. The electric toothbrush rotates quickly to generate high-frequency vibrations on the brush head, instantly decomposing the toothpaste into fine fo...

AI Technical Summary

Problems solved by technology

[0007] In order to overcome the problem of forgetting to replace the brush head after long-term use of traditional electric toothbrushes, the present invention provides an electric toothbrush circuit that supports brush head replacement reminders. After the user installs a new brush head, the contacts of the brush head and the contacts The points are connected, and the number of times of daily use is recorded by the main control chip. After the number of times of use reaches a preset certain upper limit, the electric brush head will start and stop intermittently for a short time. This design action reminds the user to replace a new one. Brush head; the wireless charging circuit charges the battery, and the battery detects the battery capacity through the battery capacity detection circuit. While the power supply of the battery supplies power to the motor drive circuit, it also stabilizes the voltage at 3.3V to provide the working voltage for each unit circuit. The driving circuit is controlled by the main control circuit, which controls the different frequencies and opening and closing of the brush head

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