CN202351412U

CN202351412U - DC power supply module intelligent detecting system

Info

Publication number: CN202351412U
Application number: CN 201120544659
Authority: CN
Inventors: 刘建明; 肖丰
Original assignee: NTS Technology Chengdu Co Ltd
Current assignee: NTS Technology Chengdu Co Ltd
Priority date: 2011-12-22
Filing date: 2011-12-22
Publication date: 2012-07-25
Anticipated expiration: 2021-12-22

Abstract

The utility model relates to the technical field of power supplies, and particularly to a DC power supply module intelligent detecting system, which includes a programmable control DC stabilized voltage supply, a DC-DC power supply module connected with the output end of the programmable control DC stabilized voltage supply, a DC stabilized voltage supply, a testing tool, an oscilloscope, an electronic load and a PC computer, wherein the output end of the DC-DC power supply module is connected with the input end of the testing tool; both the oscilloscope and the electronic load are connected with the output end of the testing tool; the testing tool is also connected with the DC stabilized voltage supply; the programmable control DC stabilized voltage supply, the testing tool, the oscilloscope and the electronic load are all connected with the PC computer; and a 28V DC voltage output port and a 28V AC voltage output port are arranged at the output end of the DC-DC power supply module. The DC power supply module intelligent detecting system provided by the utility model can be used for automatically detecting the DC-DC power supply module, has the automatic warning function, saves the cost of manual labor and improves the testing efficiency.

Description

The dc power module intelligent checking system

Technical field

The utility model relates to the DC power technique fields, particularly a kind of dc power module intelligent checking system.

Background technology

The DC-DC power module is the hydrid integrated circuit with specific function.DC-DC power module not only out-put supply is big, and the out-put supply precision is high, and has very strong isolation and stability, is widely used in fields such as space flight, aviation, military project, industrial automation.In any one application, the relationship between quality of DC-DC power module is the successful basis of this field product to this field reliability of products.

The traditional method that power module is detected is; Use ordinary electric meter to some parameter manual test one by one; Can only test output voltage, output current; And then hand computation line regulation and load regulation and efficient, a lot of parameters can not test and measuring accuracy relatively poor, be unfavorable for the quality assurance of DC-DC power module.

The utility model content

The purpose of the utility model is: the problems referred to above to prior art exists provide a kind of dc power module intelligent checking system.

To achieve these goals, the technical scheme of the utility model employing is:

The dc power module intelligent checking system; This detection system comprises program control D.C. regulated power supply, DC-DC power module, D.C. regulated power supply, test fixture, oscillograph, electronic load and PC computing machine; Said program control D.C. regulated power supply output terminal connects DC-DC power module input end; Program control D.C. regulated power supply earth terminal connects DC-DC power module earth terminal, and said DC-DC power module outlet connects the test fixture input end, and said oscillograph and electronic load all are connected the test fixture output terminal; Test fixture also is connected to the D.C. regulated power supply of its power supply; Said program control D.C. regulated power supply, test fixture, oscillograph, electronic load all are connected with the PC computing machine, and wherein, test fixture is connected through RS232 (serial port drive interface) interface with the PC computing machine; Preferably, said program control D.C. regulated power supply, oscillograph, electronic load all are connected through GPIB (general purpose interface bus) with the PC computing machine; Said DC-DC power module outlet is provided with 28V dc voltage output end mouth, 28V ac voltage output mouth, overvoltage protection output port, overcurrent protection output port and overheat protector output port.

Said test fixture is realized plurality of voltages output automatic switchover; And guarantee to have only in real time the output of one road voltage at oscillograph and electronic load input end; Other passages not to be tested automatically switch on the matched load on the test fixture, realize the isolation of tested passage and channel height to be measured.Said electronic load is realized static performance index test and partial dynamic testing performance index; The static performance index here comprises: input voltage, output voltage _ 28VA, output voltage _ 28VD, output voltage _ 28VA degree of accuracy, output voltage _ 28VD degree of accuracy, output current _ 28VA, output current _ 28VD, output power _ 28VA, output power _ 28VD, conversion efficiency _ 28VD, 28VA line regulation, 28VD line regulation, 28VA load regulation, 28VD load regulation, conversion efficiency _ 28VA; The dynamic performance index here refers to: conduction delay.Said oscillograph is realized the dynamic performance index test, comprises noise and conduction delay.

The utility model dc power module intelligent checking system can detect the various alarm statuses of DUT (equipment under test) automatically; Comprise input undervoltage alarm, input overvoltage alarm, the recovery of input undervoltage alarm, output overvoltage alarm clearing, output overvoltage alarm _ 28VA, output overvoltage alarm _ 28VD, output overcurrent alarm _ 28VA, output overcurrent alarm _ 28VD, output short-circuit alarm _ 28VA, output short-circuit alarm _ 28VD, and various alarm statuses are printed; The dc power module intelligent checking system can also be adjusted output voltage, range of adjustment 20 ~ 30V automatically.

In sum, owing to adopted technique scheme, the beneficial effect of the utility model is:

1, the utility model dc power module intelligent checking system can detect the DC-DC power module automatically, has saved human cost, has improved testing efficiency;

2, DC-DC power module test data can stored and print to the utility model automatically, and do not have artificial the intervention, can realize true, the permanent test record of reviewing;

3, realize that automatically various alarm functions detect, and carry the newspaper warning message, realize detecting intelligent to upper system;

4, the analysis of procedure for producing process capability is carried out in intellectuality, for production quality control strong help is provided.

Description of drawings

Fig. 1 is the structural representation block diagram of the utility model.

Fig. 2 is the DC-DC power module functional parameter repertory of the utility model test.

Fig. 3 is the DC-DC power module performance index repertory of the utility model test.

Embodiment

Below in conjunction with accompanying drawing, the utility model is done detailed explanation.

For the purpose, technical scheme and the advantage that make the utility model is clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.

As shown in Figure 1; The dc power module intelligent checking system that present embodiment is enumerated comprises program control D.C. regulated power supply, DC-DC power module, D.C. regulated power supply, test fixture, oscillograph, electronic load and PC computing machine; Said program control D.C. regulated power supply output terminal connects DC-DC power module input end; Program control D.C. regulated power supply earth terminal connects DC-DC power module earth terminal; Said DC-DC power module outlet connects the test fixture input end, and the output terminal of said oscillographic output terminal and electronic load all is connected the test fixture output terminal, and the earth terminal of oscillographic earth terminal and electronic load all is connected the test fixture earth terminal; Test fixture also connects D.C. regulated power supply; Said D.C. regulated power supply is that test fixture provides 5.5V voltage, and said program control D.C. regulated power supply, test fixture, oscillograph, electronic load all are connected with the PC computing machine, wherein; Test fixture is connected through RS232 (serial port drive interface) interface with the PC computing machine, and said program control D.C. regulated power supply, oscillograph, electronic load all are connected through GPIB (general purpose interface bus) with the PC computing machine.

Said DC-DC power module comprises the 28V dc voltage output end, for test fixture provides 28V DC voltage; The 28V ac voltage output is for test fixture provides 28V alternating voltage; Overvoltage protection output terminal UVP when DC-DC power module voltage is higher than the protection voltage of self, is reacted to the PC computing machine through test fixture, and the PC computing machine sends over voltage alarm information; Overcurrent protection output terminal OVP when DC-DC power module electric current is higher than the protective current of self, is reacted to the PC computing machine through test fixture, and the PC computing machine sends the overcurrent warning message; Overheat protector output terminal OTP when DC-DC power module temperature is higher than the protection temperature of self, is reacted to the PC computing machine through test fixture, and the PC computing machine sends overtemperature alarm information.

Said test fixture is realized plurality of voltages output automatic switchover; And guarantee to have only in real time the input end of one road voltage output at oscillograph and electronic load; Other passages not to be tested automatically switch on the coupling electronic load, realize the isolation of tested passage and channel height to be measured; Said electronic load is realized static and partial dynamic testing performance index; Said oscillograph is realized the dynamic performance index test.

Like Fig. 2, shown in Figure 3; The dc power module intelligent checking system of the utility model can be tested each item performance index and the functional parameter of DC-DC power module, and each item performance index comprise: input voltage, output voltage _ 28VA, output voltage _ 28VD, output voltage _ 28VA degree of accuracy, output voltage _ 28VD degree of accuracy, output current _ 28VA, output current _ 28VD, output power _ 28VA, output power _ 28VD, conversion efficiency _ 28VD, 28VA line regulation, 28VD line regulation, 28VA load regulation, 28VD load regulation, noise, conduction delay, conversion efficiency _ 28VA etc.; Each item functional parameter comprises: undervoltage alarm recovery, output overvoltage alarm clearing, output overvoltage alarm _ 28VA, output overvoltage alarm _ 28VD, output overcurrent alarm _ 28VA, output overcurrent alarm _ 28VD, output short-circuit alarm _ 28VA, output short-circuit alarm _ 28VD are alarmed, import in input undervoltage alarm, input overvoltage, 28VA output is adjustable etc.

The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection domain of the utility model.

Claims

1. dc power module intelligent checking system; It is characterized in that; This detection system comprises program control D.C. regulated power supply, DC-DC power module, D.C. regulated power supply, test fixture, oscillograph, electronic load and PC computing machine; Said program control D.C. regulated power supply output terminal connects DC-DC power module input end, and program control D.C. regulated power supply earth terminal connects DC-DC power module earth terminal, and said DC-DC power module outlet connects the test fixture input end; Said oscillograph and electronic load all are connected the test fixture output terminal; Test fixture also is connected to the D.C. regulated power supply of its power supply, and said program control D.C. regulated power supply, test fixture, oscillograph, electronic load all are connected with the PC computing machine, and said DC-DC power module outlet is provided with 28V dc voltage output end mouth, 28V ac voltage output mouth.

2. dc power module intelligent checking system according to claim 1 is characterized in that, said DC-DC power module outlet also is provided with overvoltage protection output port, overcurrent protection output port and overheat protector output port.

3. dc power module intelligent checking system according to claim 2 is characterized in that, said program control D.C. regulated power supply, oscillograph, electronic load all are connected through GPIB with the PC computing machine.

4. dc power module intelligent checking system according to claim 3 is characterized in that, said test fixture is connected through the RS232 interface with the PC computing machine.