Touch driving apparatus, touch device and touch driving method

Abstract

Touch driving apparatus, touch control apparatus and touch driving method are provided. The touch driving apparatus is used for driving a mutual capacitance type touch panel. The touch driving apparatus includes at least one output module and a controller. Each output module includes at least two output stage circuits, and an output terminal of each output stage circuit is used for outputting a driving signal to a connected driving electrode. The touch driving method includes: determining, according to a code division multiple access (CDM) code matrix, a first group of driving electrodes and a second group of driving electrodes in a current driving period, wherein the first group of driving electrodes are driving electrodes in the plurality of driving electrodes expected to be discharged in the current driving period, and the second group of driving electrodes are driving electrodes in the plurality of driving electrodes expected to be charged in the current driving period; and in response to the determination, controlling charging of the second group of driving electrodes with power from the first group of driving electrodes.

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