Detection method, detection device and computer storage medium of circuit filtering function

Abstract

The invention discloses a circuit filtering function detecting method. A circuit comprises a filtering unit. The circuit filtering function detecting method comprises the following steps that an effective value of a ripple wave output by a target circuit is obtained, the effective value is compared with a preset effective value, and when the effective value is less than the preset effective value,the filtering unit is judged to be normal. The invention further discloses a circuit filtering function detecting device and a computer storage medium. The effective value of the output ripple wave is detected in the circuit with the filtering unit, and whether the filtering unit is normal is judged according to the fact that whether the effective value is less than the preset effective value. The circuit filtering function detecting method which is more simple and reliable is achieved.

Description

technical field [0001] The invention relates to the field of electronic technology, in particular to a detection method, a detection device and a computer storage medium of a circuit filtering function. Background technique [0002] In the application circuit of the whole machine, since the DC stabilized power supply is generally formed by the rectification and voltage stabilization of the AC power supply, it is inevitable that there are some AC components in the DC stabilized power supply, so the voltage of the DC stabilized power supply will fluctuate. As a result, ripples are generated and affect the circuit. Ripples may also be generated in the circuit when interfered with by other devices. In order to filter the ripple and make the output DC smoother, some filter capacitors are usually added to the circuit to achieve the filtering effect. [0003] When the filter capacitor patch is unqualified, the filter capacitor cannot play the role of filtering. Therefore, after ...

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Problems solved by technology

Since the automatic optical inspection uses a camera to take photos and then manually compares them for inspection, there may be problems of missing inspections or false welds that cannot be detected.

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