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DC voltage stabilizing device and system

A technology of DC voltage stabilization and voltage stabilization, applied in control/regulating systems, adjusting electrical variables, instruments, etc., can solve problems such as excessive motor noise, unstable output voltage, unstable vibration swing, etc., to reduce noise , the effect of improving stability

Pending Publication Date: 2020-01-03
GUANGZHOU STARS PULSE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the motor drive is often directly powered by the battery, and the noise and swing of the motor drive are the most stable when receiving 3.8V voltage. However, due to the charging and discharging of the battery, its output voltage is unstable and will vary between 3.2-4.2V. , which results in high motor noise and unstable vibration swing

Method used

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  • DC voltage stabilizing device and system
  • DC voltage stabilizing device and system
  • DC voltage stabilizing device and system

Examples

Experimental program
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Effect test

Embodiment 1

[0041] refer to figure 1 The schematic diagram of a DC voltage stabilizing device shown includes a DC voltage doubling circuit 101 and a linear voltage stabilizing circuit 102 connected to each other.

[0042] Wherein, the input power supply voltage is boosted by the DC voltage doubler circuit 101 through the duty ratio of the PWM (Pulse width modulation, pulse width modulation) circuit to obtain a boosted voltage; The circuit 102 performs voltage stabilization to obtain a regulated voltage.

[0043] In the above-mentioned device provided in this embodiment, the input power supply voltage is first boosted through the adjustment of the duty ratio of the DC voltage doubler circuit 101, and then the linear voltage regulator circuit 102 is used to stabilize and adjust the voltage to finally obtain a stable stabilized voltage Compared with the prior art, due to battery charge and discharge, the output voltage is unstable and will vary between 3.2-4.2V, resulting in large motor noi...

Embodiment 2

[0058] refer to Figure 5 The schematic diagram of a DC voltage stabilizing system shown includes the DC voltage stabilizing device in Embodiment 1, and also includes a battery unit 502 connected to the DC voltage stabilizing device 501, a controller unit 503 and a motor drive unit 504; the controller unit 503 A charging unit 505 and a display unit 506 are also connected. Wherein, the controller unit 503 includes an MCU (Micro Control Unit, micro control unit) controller controlled by a single chip microcomputer.

[0059] The controller unit 503 outputs a preset PWM waveform signal; the battery unit 502 outputs an input power supply voltage; the motor drive unit 504 receives a regulated voltage; the charging unit 505 charges the battery of the battery unit 502; the display unit 506 displays control information.

[0060] In the above method provided by this embodiment, the input power supply voltage is first boosted by adjusting the duty ratio of the DC voltage doubler circuit...

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Abstract

The invention provides a DC voltage stabilizing device and system, and relates to the technical field of electric toothbrushes. The DC voltage stabilizing device comprises DC voltage doubling circuitand a linear voltage stabilizing circuit; an input supply voltage is boosted by the DC voltage doubling circuit through a duty ratio to obtain a boosted voltage; and the boosted voltage is input to the linear regulator circuit, and the linear voltage stabilizing circuit performs voltage stabilization to obtain a stable voltage. The DC voltage stabilizing device provided by the invention can effectively reduce the noise of the electric toothbrush and improve the vibration stability of the electric toothbrush.

Description

technical field [0001] The invention relates to the technical field of electric toothbrushes, in particular to a DC voltage stabilizing device and system. Background technique [0002] In the prior art, the electric toothbrush is mainly driven by an MCU to control the motor, so as to control the vibration of the motor. Among them, the motor drive is often directly powered by the battery, and the noise and swing of the motor drive are the most stable when receiving 3.8V voltage. However, due to the charging and discharging of the battery, its output voltage is unstable and will vary between 3.2-4.2V. , which causes the motor noise to be too loud and the vibration swing to be unstable. Contents of the invention [0003] The object of the present invention is to provide a DC voltage stabilizing device and system, which can effectively reduce the noise of the electric toothbrush and improve the vibration stability of the electric toothbrush. [0004] In the first aspect, the...

Claims

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Application Information

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IPC IPC(8): G05F1/56
CPCG05F1/561
Inventor 吴胜斌陈建群
Owner GUANGZHOU STARS PULSE CO LTD