Driving device and method for generating driving voltage
AssigneeIli Technology Corp.
InventorsChuan-Chi Fan, Jung-Kuei Hsu, Yung-Fu Lin, Wen-Ger Wong, Chia-Chun Hsu, Cheng-Chung Hsu
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Abstract
A driving device and a method for generating a driving voltage are provided. The method for generating the driving voltage is applicable to a driving device of a touch panel. The method includes: generating multiple different reference voltages; providing a voltage selector to select and output each of the reference voltages in each of multiple time intervals to generate a driving voltage; and setting a time length for each of the time intervals according to whether a signal power of the driving device is greater than a set value.
Claims16
A method for generating a driving voltage, applicable to a driving device of a touch panel, comprising:
- generating a plurality of different reference voltages;
- providing a voltage selector to, in each of a plurality of time intervals, select and output each of the reference voltages to generate the driving voltage;
- and
- setting a duration of each of the time intervals according to whether a signal power of the driving device is greater than a set value,
- wherein in a first phase, a voltage value of the driving voltage increases sequentially in the corresponding time intervals, and in a second phase, the voltage value of the driving voltage decreases sequentially in the corresponding time intervals.
A driving device, configured to drive a touch panel, comprising:
- a reference voltage generator, receiving a benchmark voltage, and providing a plurality of different reference voltages;
- and
- a voltage selector, coupled to the reference voltage generator, receiving the reference voltages, and in each of a plurality of time intervals, respectively selecting and outputting each of the reference voltages to generate a driving voltage,
- wherein the voltage selector sets a duration of each of the time intervals according to whether a signal power of the driving device is greater than a set value, and
- wherein in a first phase, the voltage value of the driving voltage increases sequentially in the corresponding time intervals, and in a second phase, the voltage value of the driving voltage decreases sequentially in the corresponding time intervals.
Dependencies are inferred from the claim text.