Electric toothbrush scheme

Electric toothbrush scheme

1. Introduction to wireless charging electric toothbrush:

As the name suggests, the wireless charging electric toothbrush mainly includes two technical applications - Wireless charging management and electric toothbrush control. Next, I will briefly introduce these two aspects. Wireless charging technology uses the principle of near-field electromagnetic induction. The transmitting end converts electric energy into electromagnetic wave and transmits it to the receiving end. The coil at the receiving end generates induced current by changing magnetic field to realize the purpose of charging the battery of electrical equipment. Compared with the traditional toothbrush, the electric toothbrush has a more scientific and effective role in cleaning and dental health care.

According to the working principle, electric toothbrushes can be divided into two categories: low-end motor rotary electric toothbrush and high-end magnetic core structure acoustic electric toothbrush. Compared with the former, the latter has the advantages of controllable force, swing direction and high frequency.

2. Introduction to the main control board of wireless charging toothbrush:

The main control board of wireless charging electric toothbrush is shown in Figure 1:

The toothbrush head is shown in Figure 2:

01

The main control board of wireless charging electric toothbrush in charging is shown in Figure 3:

02

3. Operating instructions:

The main circuit of the wireless charging electric toothbrush comprises a mode conversion key, five working mode indication LEDs and a red and green LED for power indication.

3.1 when the power is at full voltage (greater than or equal to 4.1V):

(1) Press the mode conversion button, the green power indicator is always on, indicating that the power is sufficient, and the first toothbrush mode indicator is on - indicating that the toothbrush is in the "cleaning" mode;

(2) Press the mode conversion button again, and the second toothbrush mode indicator lights up - indicating that the toothbrush is in the "whitening" mode, and the swing strength of the toothbrush head changes slightly from strong to weak and then gradually increased;

(3) Press the mode conversion button again, and the third toothbrush mode indicator lights up - indicating that the toothbrush is in the "grinding" mode, the swing force of the toothbrush head increases significantly, and the force changes faster;

(4) Repeat the above key operation, enter the "gum health care" mode, the fourth toothbrush mode indicator lights up, and the toothbrush head swings with a constant force without change compared with the previous mode;

(5) Press the key again to enter the last "sensitive" mode, the fifth toothbrush mode indicator lights up, and the toothbrush head swings with the minimum constant force;

(6) Press the key again and the toothbrush is in standby mode.

(7) Continue the above key operation, and steps (1) ~ (6) can be repeated.

3.2 when the power is in the non full voltage state (less than 4.1V and greater than or equal to 3.2V), the green power indicator "breathing" flashes, indicating that the toothbrush should be charged, but the above toothbrush operation modes can still work normally.

3.3 when the power is under voltage (less than 3.2V), the red power indicator "breathing" flashes. At this time, the toothbrush cannot work normally. Please charge it immediately and press the button again to switch the toothbrush to standby mode.

3.4 when the toothbrush is charged, the mode conversion button is invalid, and the green power indicator "breathing" flashes, indicating that the toothbrush is charged; Until it is charged to the full voltage state, the green indicator is always on, indicating that the toothbrush is fully charged.