公开(公告)号：US08890731B2

公开(公告)日：2014-11-18

申请号：US14084309

申请日：2013-11-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Peter Kaiping Deng ,  Tao Xiong

IPC: H03M1/10 ,  G06F11/25

CPC classification number: H03M1/109 ,  H03M1/12

Abstract: The present invention provides a conversion circuit including: an inputting unit, a DAC connected to the inputting unit, an ADC connected to an output end of the DAC, and a comparing unit connected to an output end of the ADC. The comparing unit compares a test code set output by the ADC with a second standard test code set, and if the comparison result is in a preset error range, notify a test data collecting unit; otherwise, output the comparison result to a correcting unit. The correcting unit obtains a complementary code set according to the comparison result, and output the complementary code set to the inputting unit, so that the inputting unit updates the standard test code set according to the complementary code set and obtains the updated first standard test code set. The test data collecting unit obtains a voltage value of an input end of the ADC.

Abstract translation: 本发明提供一种转换电路，包括：输入单元，连接到输入单元的DAC，连接到DAC的输出端的ADC以及连接到ADC的输出端的比较单元。 比较单元将由ADC输出的测试代码集与第二标准测试代码组进行比较，如果比较结果处于预设误差范围，则通知测试数据收集单元; 否则，将比较结果输出到校正单元。 校正单元根据比较结果获得互补码集，并输出对输入单元的互补码集，使得输入单元根据互补码集更新标准测试码组，并获得更新的第一标准测试码 组。 测试数据采集单元获得ADC的输入端的电压值。