Circuit correction method and circuit correction system

Abstract

The invention discloses a circuit correction method. The circuit correction method is used on an analog control signal generation circuit, the analog control signal generation circuit comprises a plurality of analog control signal generation units and will correspondingly start analog control signal generation units to generate different analog control signals according to different digital handles. The circuit correction method comprises the following steps: (a) calculating which analog control signal among the analog control signals has an actual value different from an ideal value; (b) regulating the number of the analog control signal generation units started by the digital handle corresponding to the analog control signal calculated in the step (a) or the digital handle of an adjacent order; and (c) generating the analog control signal for a target circuit according to the number of the ACS generation units regulated in the step (b). The invention further discloses a corresponding circuit correction system. By adopting the circuit correction method disclosed by the invention, the signal drift of the analog control signal can be effectively reduced and the signal drift is prevented from exceeding an admissible range.

Description

technical field [0001] The present invention relates to a circuit calibration method and a circuit calibration system, in particular to a circuit calibration method and a circuit calibration system for reducing signal drift by changing the number of activated analog control signal generating units. Background technique [0002] During the manufacturing process of the circuit, process drift will occur, so that various characteristics of the circuit (such as current, voltage, capacitance, resistance) will be different from expectations. Therefore, a correction mechanism is needed to correct the integrated circuit. [0003] figure 1 A block diagram of a circuit calibration system in the prior art is shown. Such as figure 1 As shown, the circuit calibration system 100 includes a digital handle generation circuit 101 (hereinafter referred to as a DCC generation circuit for short) and an analog control signal generation circuit 103 (hereinafter referred to as an ACS generation ...

AI Technical Summary

Problems solved by technology

Therefore, the different ACS generation units in the ACS generation units activated by the number handle 011 and 100 can be reduced to one, but this type of approach requires a decoder to change the original number handle into a controllable ACS generation unit with the required sequence start handle

The decoder often requires a larger circuit area in the circuit

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