TWI468916B - Testing apparatus - Google Patents

Description

Test device

The present invention relates to a test apparatus, and more particularly to a test apparatus for testing various electrical parameters of a power supply in a computer system.

The power source is the heart of the computer mainframe, which converts the utility power into direct current to provide energy for the stable operation of the computer. The power output includes ±12V, +5V, +3.3V and other voltages for CPU, hard disk, CD player, etc.

Taking +12V as an example, it supplies power to the spindle motor and seek motor of the hard disk, the optical disk drive, and provides operating voltage for the expansion slot. When the voltage output of +12V is abnormal, it often causes unstable reading performance of the hard disk and the optical disk drive. When the voltage is low, the speed of the CD player is low, the logical bad sectors of the hard disk increase, the system is easy to crash, and it cannot be used normally. When the voltage is too high, the speed of the CD player is too high, and it is prone to runaway. Phenomenon, hard disk performance is stalled, flying. Therefore, measuring the electrical parameters of the power supply in the computer system becomes very important.

After the power is connected to the computer mainframe, the measurement is generally performed by a multimeter when measuring the output. However, since the power supply and the host are connected by means of a joint, measurement is difficult. Especially when measuring the ripple (ripple) and noise of the output voltage, there is no space to set the filter capacitor, which affects the test accuracy.

Generally, external filter capacitors can accurately test the voltage, which is not only time-consuming, but also It is easy to smash the power supply and components on the motherboard.

In view of this, it is necessary to provide a test device that can easily test the output of the power supply.

A testing device for connecting a power supply and a computer motherboard to test electrical parameters of the power supply in a computer system, the power supply for supplying power to a computer, the power supply comprising an input end and an output end, The input end is connected to an external power source, the output end of the power supply has a plurality of output voltages, and the testing device includes an input end, an output end, and a complex array test interface connecting the input end and the output end, the test An input end of the device is connected to an output end of the power supply, an output end of the test device is connected to the computer, and each set of the complex array test interface corresponds to an output voltage of the power supply To test the electrical parameters of the output voltage.

Compared with the prior art, the testing device of the embodiment of the present invention has a connector and peripheral electronic components that need to be tested on the test device, thereby facilitating testing of various electrical parameters output by the power supply.

10‧‧‧Computer motherboard

11‧‧‧ boards

12‧‧‧Central processor

13‧‧‧ North Bridge

14‧‧‧Electronic components

15‧‧‧Power interface

20‧‧‧Testing device

21‧‧‧ boards

22‧‧‧ input

23‧‧‧ Output

24‧‧‧Wire

25‧‧‧Test interface

211‧‧‧ first joint

212‧‧‧Second joint

213‧‧‧ third joint

214‧‧‧fourth joint

30‧‧‧Power supply

1 is a schematic diagram showing the connection of a test device, a power supply, and a computer motherboard according to an embodiment of the present invention.

The embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

Referring to FIG. 1 , a test apparatus 20 provided by an embodiment of the present invention is used to connect a power supply 30 and a computer motherboard 10 to test parameters of various output voltages of the power supply 30 .

The computer motherboard 10 includes a circuit board 11 and a central processing unit (CPU) 12, a north bridge (NB, North Bridge) 13, an electronic component 14, and a power supply interface 15 disposed on the circuit board 11. The electronic component 14 includes resistors, capacitors, and other wafers that assist the central processor 12 and the north bridge 13 in implementing the functions of the computer motherboard 10.

The power interface 15 is used to connect the power supply 30 to provide power to the computer motherboard 10.

The power interface 15 on the computer motherboard 10 includes different standard interfaces such as 24-pin and 4-pin. Different interfaces have different voltage output values.

In this embodiment, a 24-pin power interface 15 is taken as an example. In addition, the 24-pin power interface 15 has a plurality of voltage input ports for providing +12V, +3.3V, and + to the computer motherboard 10. 5V, -12V and +5Vstand by a total of 5 voltage values. The power supply 30 is used to convert an external power supply (generally a commercial power) into a voltage required by the computer motherboard 10, and an input terminal for connecting an external power supply, and an output terminal corresponding to the power supply interface 15 of the computer motherboard 10 having 24 pins, 4 pins, etc. Various specifications.

The test device 20 includes a circuit board 21, an input terminal 22, an output terminal 23, a test interface 25 and a wire 24, and the input terminal 22 and the output terminal 23 are connected to the test interface 25 by wires 24. The input terminal 22 is used to connect to the output end of the power supply 30, and the output terminal 23 is connected to the power supply interface 15 to input the output of the power supply 30 to the central processing unit 12, the north bridge 13, and the electronic component 14 to make it normal. jobs.

The test interface 25 includes respective first joints 211, second joints 212, third joints 213, and fourth joints 214. Since the power interface 15 has five voltage values, the number of the first connector 211, the second connector 212, the third connector 213, and the fourth connector 214 is five, that is, a total of five first devices are provided on the test interface 25. Joint 211, 5 second joints 212, 5 third joints 213 and 5 fourth joints 214, in short, a group of first The connector 211, the second connector 212, the third connector 213, and the fourth connector 214 correspond to a voltage output value of the power supply 30 and are electrically coupled to the respective voltage output terminals via the input terminal 22.

Of course, the first joint 211, the second joint 212, the third joint 213, and the fourth joint 214 of the joint can be modified correspondingly according to the power interface 15 to be tested; or the joint can be added or removed according to the project to be tested.

The first connector 213 is used to test the voltage, and the second connector 212 is used to set a filter capacitor (typically 0.1 uF and 10 uF in parallel) when measuring voltage ripple and noise, and the third connector 213 is used to test the voltage pattern. The wave and noise, the fourth connector 214 can be used to measure the power consumed by the motherboard by using a precision resistor to access the multimeter.

The first joint 211, the second joint 212, the third joint 213, and the fourth joint 214 may also be extended by a patch cord to be suitable for long-distance testing.

The testing device 20 has a test interface on which the power supply 30 is required to be tested, and can be tested by a multimeter or an oscilloscope, thereby facilitating testing of various electrical parameters of the power supply output.

In summary, the present invention has indeed met the requirements of the invention patent, and has filed a patent application according to law. However, the above description is only a preferred embodiment of the present invention, and it is not possible to limit the scope of the patent application of the present invention. Equivalent modifications or variations made by persons skilled in the art in light of the spirit of the invention are intended to be included within the scope of the following claims.

10‧‧‧Computer motherboard

11‧‧‧ boards

12‧‧‧Central processor

13‧‧‧ North Bridge

14‧‧‧Electronic components

15‧‧‧Power interface

20‧‧‧Testing device

21‧‧‧ boards

22‧‧‧ input

23‧‧‧ Output

24‧‧‧Wire

25‧‧‧Test interface

211‧‧‧ first joint

212‧‧‧Second joint

213‧‧‧ third joint

214‧‧‧fourth joint

30‧‧‧Power supply

Claims (7)

A testing device for connecting a power supply and a computer motherboard to test electrical parameters of the power supply in a computer system, the power supply for supplying power to a computer, the power supply comprising an input end and an output end, The input end is connected to an external power source, and the output end of the power supply has a plurality of output voltages. The improvement is that the testing device includes an input end, an output end, and a complex array test interface connecting the input end and the output end. The input end of the test device is connected to the output end of the power supply, the output end of the test device is connected to the computer, and each set of the complex array test interface and one of the power supply The output voltage corresponds to an electrical parameter for testing the output voltage; wherein each set of the joints includes a respective first, second, third, and fourth joint, the fourth joint being connected The resistor is used to test the current of the output voltage. The test device of claim 1, wherein the first connector is used to test an output voltage. The test device of claim 1, wherein the second connector is used to set a filter capacitor. The test apparatus of claim 3, wherein the filter capacitor comprises 0.1 uF and 10 uF in parallel. The test device of claim 1, wherein the third connector is used to test ripple and noise of the output voltage. The test apparatus of claim 3, wherein the test apparatus further comprises a circuit board, and the filter capacitor or resistor is disposed on the circuit board. The test apparatus of claim 1, wherein the test apparatus further comprises a circuit board, and the resistor is disposed on the circuit board.