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    • 44. 发明授权
    • Electric toothbrush head
    • US11872098B1
    • 2024-01-16
    • US18483276
    • 2023-10-09
    • Lei Huang
    • Lei Huang
    • A61C17/22
    • A61C17/225A61C17/222
    • The application discloses an electric toothbrush head mounted on a driving handle, comprising: a toothbrush head body provided with a connection hole; a connection component mounted in the connection hole and used to connect the toothbrush head body with the driving handle; wherein the connection component comprises a tail hood for being inserted and received in the connection hole; and wherein the tail hood sequentially comprises a middle main shell; the middle main shell is provided with an elastic arm, and the elastic arm is provided with a first boss abutted against the driving handle; an outer side of the middle main shell is wrapped with an elastic piece; an outer side of the tail hood is further sleeved with a silicone sleeve. The applicationsolves the problems in the existing electric toothbrush heads, such as large vibration and noise, and poor user experience.
    • 50. 发明申请
    • CURRENT COMPENSATION CIRCUIT, METHOD AND OPERATIONAL AMPLIFIER
    • 电流补偿电路,方法和运算放大器
    • US20140218115A1
    • 2014-08-07
    • US14173647
    • 2014-02-05
    • Lei HuangNa Meng
    • Lei HuangNa Meng
    • H02M3/04H03F1/30H03F3/45
    • H03F3/45071H03F3/45183H03F3/45744
    • Disclosed is a current compensation circuit. During calibration of a compensation current, a digital control circuit delivers a digital signal with values varying over time to a current compensation array, the current compensation array outputs different amounts of compensation current based on the digital signal with values varying over time, the digital control circuit latches a value of the digital signal, which results in a best compensation current, based on influences of the different amounts of compensation current on a parameter to be calibrated, to complete the calibration. Upon and after completion of the calibration, the digital control circuit continuously delivers the digital signal with the latched value to the current compensation array, and the current compensation array outputs the best compensation current based on the digital signal with the latched value.
    • 公开了一种电流补偿电路。 在校正补偿电流期间,数字控制电路将具有随时间变化的值的数字信号传递到电流补偿阵列,电流补偿阵列基于具有随时间变化的值的数字信号输出不同量的补偿电流,数字控制 电路锁存数字信号的值,根据补偿电流的不同量对待校准的参数的影响,产生最佳的补偿电流,以完成校准。 在完成校准之后,数字控制电路将具有锁存值的数字信号连续地传送到电流补偿阵列,并且电流补偿阵列基于具有锁存值的数字信号输出最佳补偿电流。