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US 12,216,485 B2Granted
Output circuit and related control method with pumping compensation
AssigneeNovatek Microelectronics Corp.
InventorJen-Yi Lin
Life of this patent
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Abstract
An output circuit includes an output driver, a voltage regulator, a control circuit and a charge pump circuit. The output driver includes a signal input terminal, a signal output terminal and a first power receiving terminal. The voltage regulator is coupled to the first power receiving terminal of the output driver. The control circuit is coupled to the signal input terminal of the output driver. The charge pump circuit is coupled to the control circuit and the first power receiving terminal of the output driver.
Claims7
An output circuit, comprising:
- an output driver, comprising a signal input terminal, a signal output terminal and a first power receiving terminal, to output a digital signal through the signal output terminal;
- a voltage regulator, coupled to the first power receiving terminal of the output driver, to supply power to the output driver through the first power receiving terminal;
- a control circuit, coupled to the signal input terminal of the output driver;
- and
- a charge pump circuit, coupled to the control circuit and the first power receiving terminal of the output driver, to output compensation charges to the output driver through the same first power receiving terminal;
- wherein the charge pump circuit is configured to output the compensation charges to the first power receiving terminal of the output driver according to an input/output (I/O) internal signal of the output driver.
3 more elements
Dependencies are inferred from the claim text.