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Patent Searching and Data


Title:
DIGITAL-TO-ANALOG CONVERSION APPARATUS AND METHOD
Document Type and Number:
WIPO Patent Application WO/2022/165921
Kind Code:
A1
Abstract:
Disclosed are a digital-to-analog conversion apparatus and method. The digital-to-analog conversion apparatus comprises a control module, n conversion modules, an adder and a feedback module, wherein n is an integer greater than or equal to 2; n conversion coefficients of the n conversion modules increase gradually; the control module is configured to split an input digital signal into n intermediate digital parts, divide same by corresponding conversion coefficients to obtain n intermediate digital signals, and respectively transmit the n intermediate digital signals to the n conversion modules; the n intermediate digital parts increase gradually; the conversion module is configured to perform digital-to-analog conversion on the intermediate digital signals to obtain a result containing the conversion coefficients; the adder is configured to add output signals of the n conversion modules to obtain an analog signal; the feedback module is configured to obtain a feedback signal according to the analog signal; and the control module is further configured to adjust the distribution of the n intermediate digital parts according to a target digital signal and the feedback signal.

Inventors:
FANG XI (CN)
DU GANG (CN)
XU MIN (CN)
Application Number:
PCT/CN2021/080858
Publication Date:
August 11, 2022
Filing Date:
March 15, 2021
Export Citation:
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Assignee:
SHANGHAI CHENZHU INSTR CO LTD (CN)
International Classes:
H03M1/66
Foreign References:
CN105471435A2016-04-06
CN1633029A2005-06-29
US4465996A1984-08-14
US9590648B22017-03-07
CN202110166570A2021-02-04
Attorney, Agent or Firm:
BEYOND ATTORNEYS AT LAW (CN)
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