Universal board card automatic detection device
By integrating power supplies and probes into a universal automatic board testing device, circuit board component-level fault diagnosis without schematics is achieved, solving the problems of disassembly in traditional testing methods and the limited range of dedicated devices, thereby improving testing efficiency and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CNNC FUJIAN FUQING NUCLEAR POWER
- Filing Date
- 2024-12-19
- Publication Date
- 2026-06-23
AI Technical Summary
Traditional circuit board testing methods require disassembly and specialized equipment, limiting their testing scope and making it impossible to achieve online component-level fault diagnosis without schematics.
Design a general-purpose automatic testing device for circuit boards that integrates power supply, signal generator, oscilloscope, and multimeter. The device controls the testing steps through a host computer and uses fixtures and probes to perform functional tests on components, such as V&I curves, impedance, frequency, voltage, and current, to achieve online testing.
It enables circuit board component-level fault diagnosis without schematics, reducing the skill requirements for maintenance personnel, lowering testing costs, and improving testing efficiency and accuracy.
Smart Images
Figure CN122259952A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of circuit board testing and aging management technology, and specifically relates to a general-purpose automatic circuit board testing device. Background Technology
[0002] Traditional circuit board testing methods require disassembling the circuit board and using multimeters, oscilloscopes, and other equipment to perform independent measurements on each component, which can cause some damage to the circuit board. Dedicated circuit board testing devices can only test specific models of circuit boards, limiting their application range.
[0003] This device integrates a power supply, signal generator, oscilloscope, and multimeter, enabling it to detect the voltage, current, frequency, waveform, resistance, capacitance, and inductance values of circuit board components. It can also input small current signals to detect changes in the impedance, voltage, and current of components or card channels. Through comparison, it completes card testing without powering on, and the test results can be applied to circuit board acceptance, burn-in testing, periodic / aging testing, and post-repair evaluation. It provides strong support for circuit board repair and management. Summary of the Invention
[0004] The purpose of this invention is to provide a universal automatic circuit board testing device that enables online component-level fault diagnosis of circuit boards without schematics, and tests the function / performance of components. It is mainly used in circuit board repair, component screening, development and design, teaching and research, process optimization, and production testing.
[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:
[0006] A general-purpose automatic circuit board testing device is provided. The host computer sets the test steps for the circuit board under test, generates control commands, and controls other units to coordinate their work to complete the functional test, simulation test, and dynamic impedance test of the circuit board under test, and provides test reports and various statistical results. The power supply provides various input signal power or power supply according to the instructions of the host computer.
[0007] The V&I curve and impedance test of digital IC components are completed using a fixture.
[0008] The V&I curves and impedance tests of analog components are performed using probes.
[0009] The frequency, voltage, and current functions of components are tested using probes.
[0010] The testing process does not require powering on the board or removing components.
[0011] The host computer selects the test items to be executed and generates test instructions; the power supply generates different input voltage / current signals according to the test instructions from the host computer.
[0012] The digital components of the board under test are measured using a fixture.
[0013] The analog components of the board under test are measured using a fixture.
[0014] The multi-functional tester measures the components of the board under test using probes.
[0015] The beneficial effects achieved by this invention are as follows:
[0016] This invention allows for the selection of appropriate test items based on the characteristics of the circuit board, regulatory requirements, and actual needs. Test items can be combined independently. The circuit board is tested offline, directly testing the components on the circuit board and avoiding signal analysis. Circuit analysis is transformed into individual component testing, with clear test objectives, test steps, and test conclusions. This relatively reduces the skill requirements for maintenance personnel and greatly reduces the testing cost for complex components. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of a general-purpose automatic board detection device. Detailed Implementation
[0018] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.
[0019] This invention provides a universal circuit board testing device, aiming to establish a universal, portable, and efficient circuit board component testing system. It enables rapid circuit board analysis and fault diagnosis without relying on schematics.
[0020] This device includes: a host computer, a power supply, digital IC measurement components, analog measurement components, a multi-function tester, fixtures, and probes. The host computer is used to define the test procedures for the board under test, generate control commands, and coordinate the work of other units to complete the functional testing, simulation testing, and dynamic impedance testing of the board under test, providing test reports and statistical results. The power supply provides various input signal power or power supply according to the host computer's commands. The digital IC measurement component uses the fixture to perform V&I curve and impedance tests on digital IC components. The analog measurement component uses probes to perform V&I curve and impedance tests on analog components. The multi-function tester uses probes to perform functional tests on components such as frequency, voltage, and current.
[0021] This invention allows the host computer to select board test items, generate adjustable test items, and produce test reports; the test process does not require powering on the board or disassembling components; multi-spectral V&I characteristic testing of components can provide complete and intuitive curve descriptions for linear and nonlinear devices; Figure 1This is a schematic diagram of the testing device structure. As shown in the figure, the corresponding test items are selected in the host computer 1, and the test items to be executed are selected according to actual needs, generating test instructions. The power supply 2 generates different input voltage / current signals according to the test instructions of the host computer 1. The digital components of the board under test 6 are measured by the digital IC measurement 3 through the fixture, the analog components of the board under test 6 are measured by the analog quantity measurement 4 through the fixture, and the components of the board under test 6 are measured by the multi-function tester 5 through the probe. The above related results are used to form the final power supply test report and analysis results in the host computer 1.
Claims
1. A universal board automatic detection device, characterized in that: The host computer sets the test procedures for the board under test, generates control commands, and controls other units to coordinate their work to complete the functional test, simulation test, and dynamic impedance test of the board under test, and provides test reports and various statistical results; the power supply provides various input signal power or power supply according to the host computer's instructions.
2. The universal automatic board detection device according to claim 1, characterized in that: The V&I curve and impedance test of digital IC components are completed using a fixture.
3. The universal automatic board detection device according to claim 1, characterized in that: The V&I curves and impedance tests of analog components are performed using probes.
4. The universal automatic board detection device according to claim 1, characterized in that: The frequency, voltage, and current functions of components are tested using probes.
5. The universal automatic circuit board detection device according to claim 1, characterized in that: The testing process does not require powering on the board or removing components.
6. The universal automatic board detection device according to claim 1, characterized in that: The host computer selects the test items to be executed and generates test instructions; the power supply generates different input voltage / current signals according to the test instructions from the host computer.
7. The universal automatic board detection device according to claim 6, characterized in that: The digital components of the board under test are measured using a fixture.
8. The universal automatic board detection device according to claim 6, characterized in that: The analog components of the board under test are measured using a fixture.
9. The universal automatic board detection device according to claim 6, characterized in that: The multi-functional tester measures the components of the board under test using probes.