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CN103189754A 电容测量电路及电容测量方法 无效 - 撤回

电容测量电路及电容测量方法
摘要：
本发明涉及一种电容测量电路及电容测量方法。电容测量电路及电容测量方法中，控制单元与检测信号的电平无关地根据指定的规则产生预定次数的控制代码，当判别为产生的控制代码所对应的检测信号的电平为正常时，变更控制代码而测量电容值。因此，测量出的电容值将几乎不受噪声的影响，能够输出为稳定的值。
摘要（英）：

Provided are a capacitance measurement circuit and method. In the capacitance measurement circuit and method, a control unit generates a control code a predetermined number of times according to designated rules regardless of the level of a sensing signal, and the control code is changed to measure a capacitance value when the level of the sensing signal corresponding to the generated control code is determined to be normal. Consequently, the measured capacitance value is hardly affected by noise and can be stably output.

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