Power Adapter Control Method and Control Apparatus
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Accused Products
Abstract
A power adapter control method is provided. The method includes: obtaining a scanning frequency of the TP and a strength of common mode noise generated by a power adapter at the scanning frequency of the TP; determining whether the strength of the common mode noise is greater than or equal to a preset threshold; and when the strength of the common mode noise is greater than or equal to the preset threshold, adjusting a working frequency of a control IC of the power adapter, so that a strength of common mode noise newly generated by the power adapter at the scanning frequency of the TP is less than the preset threshold. The embodiments of the present invention are used for a process of reducing interference of the common mode noise to the TP.
5 Citations
21 Claims
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1-11. -11. (canceled)
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12. A power adapter control method, comprising:
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obtaining a scanning frequency of a touch panel (TP); obtaining a strength of common mode noise generated by a power adapter at the scanning frequency of the TP; determining whether the strength of the common mode noise is greater than or equal to a preset threshold; and in response to determining that the strength of the common mode noise is greater than or equal to the preset threshold, adjusting a working frequency of a control integrated chip (IC) of the power adapter according to the scanning frequency of the TP, so that a strength of common mode noise newly generated by the power adapter at the scanning frequency of the TP is less than the preset threshold. - View Dependent Claims (13, 14, 15, 16)
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17. A control apparatus, the control apparatus comprising at least one processor, a memory, and a communications interface, wherein:
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the memory is configured to store an instruction; and the at least one processor is configured to invoke the instruction stored in the memory to cause the control apparatus to; obtain a scanning frequency of a touch panel (TP); and obtain a strength of common mode noise generated by a power adapter at the scanning frequency of the TP; determine whether the strength of the common mode noise is greater than or equal to a preset threshold; and in response to determining that the strength of the common mode noise is greater than or equal to the preset threshold, adjust a working frequency of a control integrated chip (IC) of the power adapter according to the scanning frequency of the TP, so that a strength of common mode noise newly generated by the power adapter at the scanning frequency of the TP is less than the preset threshold. - View Dependent Claims (18, 19, 20, 21)
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Specification