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US 9,959,833 B2Granted
Driver and electronic device for suppressing a rise or fall in voltage at an output terminal in capacitive driving
AssigneeSeiko Epson Corporation
InventorAkira Morita
Life of this patent
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Abstract
A driver and an electronic device include a capacitor driving circuit and a capacitor circuit having a plurality of capacitors provided between a plurality of capacitor driving nodes and a data voltage output terminal. The capacitor driving circuit has a plurality of driving units that output capacitor driving voltages, and in the case where a capacitance of one of the plurality of capacitors is the highest, after a driving unit that drives that capacitor has outputted a capacitor driving voltage, the next driving unit outputs the next capacitor driving voltage.
Claims15
A driver comprising:
- a signal output circuit that outputs first to nth bits corresponding to tone data and includes a delay unit that delays the first to nth bits, the first to nth bits having different delay times and being output in an order corresponding to the delay times, n being a natural number of 2 or more;
- a capacitor driving circuit that outputs first to nth capacitor driving voltages, the first to nth capacitor driving voltages corresponding to the first to nth bits and being output in the order;
- and
- a capacitor circuit that includes first to nth capacitors, each of the first to nth capacitor driving voltages being input to a corresponding capacitor of the first to nth capacitors,
- wherein when a capacitance of the nth capacitor of the first to nth capacitors is the highest, an n−1th capacitor driving voltage of the first to nth capacitor driving voltages is output after the nth capacitor driving voltage has been output.
2 more elements
A driver comprising:
- a signal output circuit that outputs first to nth bits corresponding to tone data, and includes a delay unit that delays the first to nth bits, the first to nth bits having different delay times and being output in an order corresponding to the delay times, n being a natural number of 2 or more;
- a capacitor driving circuit that outputs first to nth capacitor driving voltages, the first to nth capacitor driving voltages corresponding to the first to nth bits and being output in the order;
- and
- a capacitor circuit that includes first to nth capacitors, the capacitors having respectively different capacitances, each of the first to nth capacitor driving voltages being input to a corresponding capacitor of the first to nth capacitors,
- wherein the order corresponds to the size of the capacitances of the first to nth capacitors.
2 more elements
Dependencies are inferred from the claim text.