CN208399989U - A kind of circuit of power control board testing jig - Google Patents
A kind of circuit of power control board testing jig Download PDFInfo
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- CN208399989U CN208399989U CN201820863033.2U CN201820863033U CN208399989U CN 208399989 U CN208399989 U CN 208399989U CN 201820863033 U CN201820863033 U CN 201820863033U CN 208399989 U CN208399989 U CN 208399989U
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Abstract
The utility model discloses a kind of circuit of power control board testing jig, including main control unit, power supply unit, test cell, display unit and indicating unit；Power supply unit input terminal is electrically connected utility grid, and output end is electrically connected main control unit, test cell, display unit and indicating unit, and for providing working power for main control unit, test cell, display unit and indicating unit；The test cell includes several test branches, the output of the matching module of the input terminal electric connection of power supply control panel of several test branches, it is described it is several test branch output end then with the MA82G5B08 monolithic mechatronics of the main control unit, the MA82G5B08 monolithic function of the main control unit receives and handles the test data of several test branch outputs, and the test data of processing can be sent to the indicating unit and display unit being electrically connected, the MA82G5B08 single-chip microcontroller of the main control unit control the display unit show with indicating unit shine and/or sounding, match display/instruction test result.
Description
Technical field
The utility model relates to test fixture field, especially a kind of circuit of power control board testing jig.
Background technique
The test speed of the production line test request test equipment of Switching Power Supply manufacturer must very efficiently, be as far as possible
Enough power source products are just detected with less equipment and personnel in the unit time.For in face of this requirement, production
Quotient take by industrial computer more test equipments are communicated in the way of come co-ordination, to obtain higher production effect
Rate.But the test of existing Switching Power Supply production there is also the problem of be: existing test production line is not to operator couple
Time consumed by the process that product is loaded and unloaded accounts for, the existing process often loaded and unloaded in operator to product
In, test equipment is off work, and test equipment is not effectively utilized, causes the waste of certain resource.
In order to improve the production efficiency of Switching Power Supply manufacturer, test equipment is made full use of, in the hope of using equivalent amount
Instrument and it is artificial under the premise of, greater number of product can be tested in the unit time, the creator of this exercises devises one kind
The circuit of power control board testing jig.
Utility model content
The technical issues of solution of the utility model is to provide a kind of electricity for above-mentioned existing defect in the prior art
The circuit of source control panel testing jig, tests power control board by using the testing jig of the circuit, determines failure and looks into
It looks for component quick, the testing time can be saved.
To solve above-mentioned technical problem, the technical solution that the utility model is taken is as follows, a kind of power control board testing jig
Circuit, including main control unit, power supply unit, test cell, display unit and indicating unit；Said supply unit input terminal electricity
Utility grid is connected, output end is electrically connected main control unit, test cell, display unit and indicating unit, and for being master control list
Member, test cell, display unit and indicating unit provide working power；The test cell includes several test branches, described
The output of the matching module of the input terminal electric connection of power supply control panel of several test branches, the output end of several test branches
Then with the MA82G5B08 monolithic mechatronics of the main control unit, the MA82G5B08 monolithic function of the main control unit receive and
The test data of several test branch outputs is handled, and the test data of processing can be sent to the instruction being electrically connected
Unit and display unit, the MA82G5B08 single-chip microcontroller of the main control unit control the display unit and show and indicating unit
Luminous and/or sounding matches display/instruction test result.
It is further described as to above-mentioned technical proposal:
In the above-mentioned technical solutions, said supply unit includes EMI inductance, rectifier bridge stack, transformer, feed circuit, electricity
Source chip and voltage stabilizing chip, the EMI inductance input port connect power grid, and output port connects rectifier bridge stack, the rectifier bridge
Heap and transformer, power supply chip and feed circuit are sequentially connected electrically and constitute circuit loop, the transformer secondary coil two
End is defined as output end, which connects the input terminal and feed circuit of voltage stabilizing chip；The feed circuit includes controllable essence
The voltage reference electrode of close pressure stabilizing source element, optocoupler and periphery resistance, the controllable accurate pressure stabilizing source element passes through a resistance
It connect with the anode of output end, and is connect by another resistance with reference；The photophore cathode of the optocoupler and described controllable
The cathode of precision voltage regulator element connects, and the anode of photophore is connected by the anode of resistance and output end, and the optocoupler
A resistance, the reference of the collector of the light-receiving device of the optocoupler and the power supply chip are serially connected between photophore cathode and anode
Voltage port electrical connection；The voltage of the feed circuit sampling output end output, feedback voltage are changed to the power supply chip, by
The power supply chip control transformer exports burning voltage, and the burning voltage of the transformer output is through the voltage stabilizing chip pressure stabilizing
After export matched voltage for main control unit, test cell, display unit and indicating unit work.
In the above-mentioned technical solutions, π type filter circuit is equipped between the rectifier bridge stack and the transformer.
In the above-mentioned technical solutions, the power supply chip is the PWM constant-current driven chip of RS2053, and the voltage stabilizing chip is
RZC2013 voltage stabilizing chip, the optocoupler are PC817 single channel optocoupler, and the controllable accurate pressure stabilizing source element is that TCL431 is adjustable
Shunt fiducial chip.
In the above-mentioned technical solutions, the test branch of the test cell includes the first optocoupler with the first rectifier bridge stack
The first test branch for testing the silicon-controlled circuit of power control board and/or fan circuit of composition, first rectifier bridge
The silicon-controlled circuit of input terminal electric connection power control board of heap and/or the test point of fan circuit, and the test point also with it is described
The matched port I/O of the MA82G5B08 single-chip microcontroller of main control unit connects, two output ends of first rectifier bridge stack then with institute
The photophore for stating the first optocoupler concatenates and constitutes circuit, and the anode of the light-receiving device of first optocoupler is electrically connected the main control unit
MA82G5B08 single-chip microcontroller the electrical connection of detection port, the MA82G5B08 single-chip microcontroller of the main control unit is by detecting described the
The matched voltage of the anode of the light-receiving device of one optocoupler and whether match the silicon-controlled circuit of measurement power control board and/or fan circuit
It is abnormal；
The test cell further includes voltage measurement branch, and each voltage measurement branch includes the sampling electricity of two concatenations
The MA82G5B08 of resistance, one end of each voltage measurement branch and power control board matching test point and/or the main control unit is mono-
The matched I/O mouthfuls of electric connection of piece machine, the MA82G5B08 that the centre tap of two sampling resistor is electrically connected the main control unit are mono-
The MA82G5B08 single-chip microcontroller of piece machine corresponding voltage test port, the main control unit is taken out by the intermediate of two sampling resistors of detection
The voltage of head and measure the voltage of power control board matching test point.
In the above-mentioned technical solutions, the display unit is four segment numeral pipes, the four segment numerals pipe and the master control list
The MA82G5B08 single-chip microcontroller matching of member is electrically connected and is able to cooperate the control of the MA82G5B08 single-chip microcontroller of the main control unit and shows
Show corresponding detecting step serial number；The indicating unit includes LED light indicating unit and buzzer indicating unit, and the LED light refers to
Show unit and buzzer indicating unit by the main control unit MA82G5B08 single-chip microcontroller match control shine and/or sounding,
With the result for indicating corresponding detecting step.
Compared with prior art, the utility model has the beneficial effects that: the circuit of the utility model passes through setting multichannel
Branch is tested, is controlled by microcontroller, after power control board connects, the display circuit on testing jig has correspondence
Prompt, then presses the button and starts to test, and has and carries out multiple step tests, goes wrong in test process to which step
Mistake can be prompted, the component for finding this corresponding step mistake is then just removed according to corresponding table, is overhauled；By using
The testing jig of the circuit tests power control board, determines that failure and lookup component are quick, can save the testing time.
Detailed description of the invention
Fig. 1 is the block diagram of the circuit of the utility model power control board testing jig；
Fig. 2 is the circuit diagram of the utility model power control board testing jig.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing.
With reference to attached drawing 1-2, a kind of circuit of power control board testing jig of the utility model, it include main control unit 001,
Power supply unit 002, test cell 003, display unit 004 and indicating unit 005；The electrical connection of 002 input terminal of said supply unit
Utility grid, output end is electrically connected main control unit 004, test cell 003, display unit 004 and indicating unit 005, and is used for
Working power is provided for main control unit 004, test cell 003, display unit 004 and indicating unit 005；The test cell
003 includes several test branches, the output of the matching module of the input terminal electric connection of power supply control panel of several test branches,
The output end of several test branches is then electrically connected with the MA82G5B08 single-chip microcontroller (U2) of the main control unit 001, the master
The MA82G5B08 single-chip microcontroller (U2) of control unit 001 can receive and handle the test data of several test branch outputs, and energy
The test data of processing is sent to the indicating unit 005 and display unit 004 being electrically connected, the main control unit 001
MA82G5B08 single-chip microcontroller (U2) controls the luminous and/or sounding of the display of display unit 004 and indicating unit 005, and matching is aobvious
Show/indicate test result.
With reference to attached drawing 2, in the present embodiment, said supply unit 003 includes EMI inductance T1, rectifier bridge stack D1, transformer
T2, feed circuit, power supply chip U1 and voltage stabilizing chip U5, in the present embodiment, the PWM that the power supply chip U1 is RS2053 are permanent
Driving chip is flowed, the voltage stabilizing chip U5 is RZC2013 voltage stabilizing chip；The input port of the EMI inductance T1 connects power grid, electricity
Before net access EMI inductance T1, also by being filtered by varistor R1 and the RC formed comprising capacitor C1, resistance R2 and resistance R3
Circuit filtering, varistor R1 can eliminate the spike of power grid introduction；The output port (2,3) of EMI inductance T1 connects rectification
(2,3) port of bridge heap D1, (1,4) port of the rectifier bridge stack D1 connect the upper end of the primary coil of the transformer T2,
And π type filter circuit is equipped between (1,4) port and the transformer T2, π type filtered electrical routing capacitance C2, the C3 and parallel connection
Resistance R4-R8 composition, the rectifier bridge stack D1 and transformer T2, power supply chip U1 and feed circuit are sequentially connected electrically and constitute
The secondary coil both ends of circuit loop, the transformer T2 are defined as output end, which connects the input of voltage stabilizing chip U5
End and feed circuit；The feed circuit includes controllable accurate pressure stabilizing source element U4, optocoupler U3 and periphery resistance, in this implementation
In example, the optocoupler U3 is PC817 single channel optocoupler, and the controllable accurate pressure stabilizing source element U4 is TCL431 adjustable shunt benchmark
The voltage reference electrode of chip, the controllable accurate pressure stabilizing source element U4 is connected by the anode of a resistance R21 and output end, and
It is connect by another resistance R22 with reference；The photophore cathode of the optocoupler U3 and the controllable accurate pressure stabilizing source element U4
Cathode connection, the anode of photophore is connected by the anode of resistance R19 and output end, and the photophore cathode of the optocoupler U3
The voltage at the both ends loading resistor R20 on a resistance R20, namely the photophore of the optocoupler U3 is serially connected between anode for its hair
Light, the collector of the light-receiving device of the optocoupler U3 are electrically connected with the reference voltage port (FB) of the power supply chip U1；It is described anti-
Current feed circuit samples the voltage of output end output, and output end voltage changing value is fed back to the power supply chip U1, power supply core described in s
Piece U1 controls the number of edges of transformer T2 primary coil by start and stop, to compensate the variation of output voltage, makes the transformer
The burning voltage of T2 output exports matched voltage for main control unit 001, test cell after the voltage stabilizing chip U5 pressure stabilizing
003, display unit 004 and indicating unit 005 work.
With reference to attached drawing 2, in the present embodiment, the test branch of the test cell 003 includes by the first rectifier bridge stack
(D7, D8) cooperation the first optocoupler (U6, U7) composition for testing the of the silicon-controlled circuit of power control board and/or fan circuit
One test branch, input terminal (2,3) the silicon-controlled circuit of electric connection power control board of first rectifier bridge stack (D7, D8) and/
Or the test point (TEST5, TEST6) of fan circuit, and the test point (TEST5, TEST6) also with the main control unit 004
The matched port I/O (TEST5, TEST6) of MA82G5B08 single-chip microcontroller (U2) connects, first rectifier bridge stack (D7, D8)
Two output ends (1,4) then concatenate and constitute circuit with the photophore of first optocoupler (U6, U7), first optocoupler (U6,
U7 the anode of light-receiving device) be electrically connected the MA82G5B08 single-chip microcontroller (U2) of the main control unit 001 detection port (HVOL1,
HVOL2 it) is electrically connected, the MA82G5B08 single-chip microcontroller (U2) of the main control unit 001 is by detecting first optocoupler (U6, U7)
Light-receiving device the matched voltage of anode and match the silicon-controlled circuit of measurement power control board and/or whether fan circuit abnormal,
In practice, the anode also series resistor (R30, R27) of the light-receiving device of first optocoupler (U6, U7) over the ground, and resistance (R30,
R27 the pressure drop matching on) is the voltage of MA82G5B08 single-chip microcontroller (U2) detecting；The test cell 003 further includes voltage measurement
Branch, each voltage measurement branch include the sampling resistor (R31-R32, R41-R42) of two concatenations, each voltage measurement branch
One end and power control board matching test point and/or the main control unit MA82G5B08 single-chip microcontroller it is I/O mouthfuls matched
(TEST2, TEST12) is electrically connected, and the centre tap of two sampling resistor (R31-R32, R41-R42) is electrically connected the master control
MA82G5B08 single-chip microcontroller (U2) the corresponding voltage test port (ADC5V, ADCCMOS) of unit 001, the main control unit 001
MA82G5B08 single-chip microcontroller (U2) is measured by the tapped voltage of detection two sampling resistors (R31-R32, R41-R42)
The voltage of power control board matching test point.
With reference to attached drawing 2, in the present embodiment, the display unit 004 is four segment numeral pipes (U8), the four segment numerals pipe
(U8) it is electrically connected with the matching of the MA82G5B08 single-chip microcontroller (U2) of the main control unit 001 and is able to cooperate the main control unit 001
The control of MA82G5B08 single-chip microcontroller (U2) and show corresponding detecting step (testing jig of the present embodiment to power control board test
The step of include 1 to 8 step) serial number when test detects a certain step and detects mistake, then four segment numeral pipes in practice
(U8) corresponding number is shown；The indicating unit includes that (including three LED light driving branches, correspondence are set LED light indicating unit
Determine red, yellow, and green to give out light diode) and buzzer (B1) indicating unit, the LED light indicating unit and buzzer instruction it is single
Member is shone by MA82G5B08 single-chip microcontroller (U2) match control of the main control unit 001 and/or sounding, the corresponding inspection of matching instruction
Survey the result of step.
Do not limit the technical scope of the present invention above, it is all according to the utility model technical spirit to
On embodiment made by any modification, equivalent variations and modification, in the range of still falling within the technical solution of the utility model.
Claims (6)
1. a kind of circuit of power control board testing jig, it is characterised in that, including it is main control unit, power supply unit, test cell, aobvious
Show unit and indicating unit；Said supply unit input terminal is electrically connected utility grid, and output end is electrically connected main control unit, test list
Member, display unit and indicating unit, and for providing work electricity for main control unit, test cell, display unit and indicating unit
Source；The test cell includes several test branches, of the input terminal electric connection of power supply control panel of several test branches
Output with module, it is described it is several test branches output ends then with the MA82G5B08 monolithic mechatronics of the main control unit,
The MA82G5B08 monolithic function of the main control unit receives and handles the test data of several test branch outputs, and energy
The test data of processing is sent to the indicating unit and display unit being electrically connected, the MA82G5B08 of the main control unit
Single-chip microcontroller control the display unit show with indicating unit shine and/or sounding, match display/instruction test result.
2. a kind of circuit of power control board testing jig according to claim 1, it is characterised in that, said supply unit packet
Include EMI inductance, rectifier bridge stack, transformer, feed circuit, power supply chip and voltage stabilizing chip, the EMI inductance input port connection
Power grid, output port connect rectifier bridge stack, and the rectifier bridge stack is sequentially connected electrically with transformer, power supply chip and feed circuit
And circuit loop is constituted, the transformer secondary coil both ends are defined as output end, which connects the input of voltage stabilizing chip
End and feed circuit；The feed circuit includes controllable accurate pressure stabilizing source element, optocoupler and periphery resistance, the controllable accurate
The voltage reference electrode of pressure stabilizing source element is connected by the anode of a resistance and output end, and even by another resistance and with reference to ground
It connects；The photophore cathode of the optocoupler is connect with the cathode of the controllable accurate pressure stabilizing source element, and the anode of photophore passes through electricity
Resistance is connect with the anode of output end, and a resistance is serially connected between the photophore cathode and anode of the optocoupler, the optocoupler
The collector of light-receiving device is electrically connected with the reference voltage port of the power supply chip；The feed circuit sampling output end output
Voltage, feedback voltage are changed to the power supply chip, export burning voltage, the transformation by power supply chip control transformer
It is single for main control unit, test cell, display that the burning voltage of device output exports matched voltage after the voltage stabilizing chip pressure stabilizing
Member and indicating unit work.
3. a kind of circuit of power control board testing jig according to claim 2, it is characterised in that, the rectifier bridge stack with
π type filter circuit is equipped between the transformer.
4. a kind of circuit of power control board testing jig according to claim 3, it is characterised in that, the power supply chip is
The PWM constant-current driven chip of RS2053, the voltage stabilizing chip are RZC2013 voltage stabilizing chip, and the optocoupler is PC817 single channel light
Coupling, the controllable accurate pressure stabilizing source element are TCL431 adjustable shunt fiducial chip.
5. a kind of circuit of power control board testing jig according to claim 4, it is characterised in that, the test cell
Test branch include from the first rectifier bridge stack with the first optocoupler form be used for test the silicon-controlled circuit of power control board and/or
Fan circuit first test branch, the silicon-controlled circuit of input terminal electric connection power control board of first rectifier bridge stack and/
Or the test point of fan circuit, and the test point also with the matched port I/O of the MA82G5B08 single-chip microcontroller of the main control unit
Connection, two output ends of first rectifier bridge stack then concatenate and constitute circuit with the photophore of first optocoupler, and described the
The anode of the light-receiving device of one optocoupler is electrically connected the detection port electrical connection of the MA82G5B08 single-chip microcontroller of the main control unit, described
The MA82G5B08 single-chip microcontroller of main control unit matches survey by detecting the matched voltage of anode of the light-receiving device of first optocoupler
It measures the silicon-controlled circuit of power control board and/or whether fan circuit is abnormal；
The test cell further includes voltage measurement branch, and each voltage measurement branch includes the sampling resistor of two concatenations, often
The MA82G5B08 single-chip microcontroller of one end of one voltage measurement branch and power control board matching test point and/or the main control unit
Matched I/O mouthfuls of electric connection, the centre tap of two sampling resistor are electrically connected the MA82G5B08 single-chip microcontroller of the main control unit
The MA82G5B08 single-chip microcontroller of corresponding voltage test port, the main control unit passes through the tapped of two sampling resistors of detection
Voltage and the voltage for measuring power control board matching test point.
6. a kind of circuit of power control board testing jig according to claim 5, which is characterized in that the display unit is
Four segment numeral pipes, the four segment numerals pipe are electrically connected with the matching of the MA82G5B08 single-chip microcontroller of the main control unit and are able to cooperate institute
It states the control of the MA82G5B08 single-chip microcontroller of main control unit and shows corresponding detecting step serial number；The indicating unit includes LED light
Indicating unit and buzzer indicating unit, the LED light indicating unit and buzzer indicating unit are by the main control unit
MA82G5B08 single-chip microcontroller match control shines and/or sounding, and matching indicates the result of corresponding detecting step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820863033.2U CN208399989U (en) | 2018-06-05 | 2018-06-05 | A kind of circuit of power control board testing jig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820863033.2U CN208399989U (en) | 2018-06-05 | 2018-06-05 | A kind of circuit of power control board testing jig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208399989U true CN208399989U (en) | 2019-01-18 |
Family
ID=65134327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820863033.2U Expired - Fee Related CN208399989U (en) | 2018-06-05 | 2018-06-05 | A kind of circuit of power control board testing jig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208399989U (en) |
-
2018
- 2018-06-05 CN CN201820863033.2U patent/CN208399989U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190118 Termination date: 20190605 |
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| CF01 | Termination of patent right due to non-payment of annual fee |