CN205787007U - A kind of Bluetooth circuit measurement jig - Google Patents
A kind of Bluetooth circuit measurement jig Download PDFInfo
- Publication number
- CN205787007U CN205787007U CN201620500473.2U CN201620500473U CN205787007U CN 205787007 U CN205787007 U CN 205787007U CN 201620500473 U CN201620500473 U CN 201620500473U CN 205787007 U CN205787007 U CN 205787007U
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- thimble
- bluetooth circuit
- terminal
- power supply
- measurement jig
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Abstract
The utility model discloses a kind of Bluetooth circuit measurement jig, including pedestal, described pedestal is provided with fixing device, described fixing device is used for fixing Bluetooth circuit to be measured, is provided with thimble in described fixing device；Described pedestal is provided with power supply circuits, and these power supply circuits electrically connect with thimble, for powering to Bluetooth circuit to be measured by thimble；Power supply terminal, signal input terminal and calibrating terminal it is additionally provided with on described pedestal.This design makes technical staff when testing Bluetooth circuit, it is not necessary to re-use the equipment such as computer, data collecting card, programmable power supply, only Bluetooth circuit plate to be measured need to insert measurement jig energising, just can start test.This tool is simple to operate, easy to use, relatively low to the operation level requirement of technical staff, and low price, test process is short, and the tool life-span is long.
Description
Technical field
This utility model relates to a kind of measurement jig, especially a kind of Bluetooth circuit measurement jig.
Background technology
Call function is one of critical function of bluetooth earphone, the link such as its functional test to be tested through naked part, semi-finished product test, finished product test；In traditional Bluetooth circuit test, tool needs the cooperation of computer, data collecting card, programmable power supply and related software just can complete.And, complete equipment is expensive, and it is long that test process expends the time, and the tool life-span is short；Complete equipment needs professional and technical personnel to safeguard, requires higher to the level of skill of operator.
Utility model content
In order to solve the problems referred to above, the purpose of this utility model is to provide a kind of Bluetooth circuit measurement jig.
This utility model the technical scheme is that for solving its technical problem
A kind of Bluetooth circuit measurement jig, including pedestal, described pedestal is provided with fixing device, and described fixing device is used for fixing Bluetooth circuit to be measured, is provided with thimble in described fixing device；Described pedestal is provided with power supply circuits, and these power supply circuits electrically connect with thimble, for powering to Bluetooth circuit to be measured by thimble；Power supply terminal, signal input terminal and calibrating terminal it is additionally provided with on described pedestal；Described power supply terminal is connected with power supply circuits, for providing voltage to power supply circuits, described signal input terminal and calibrating terminal all electrically connect with thimble, described signal input terminal is for sending into low frequency signal in Bluetooth circuit to be measured, and described calibrating terminal is for detecting the output voltage of Bluetooth circuit to be measured.
Measurement jig described in the utility model, its further design is: described fixing device is draw-in groove or cover plate.
Measurement jig described in the utility model, its further design is: described signal input terminal is connected with low frequency signal generator or LM324 integrated circuit.
Measurement jig described in the utility model, its further design is: described calibrating terminal is connected with voltmeter or circuit tester.
Measurement jig described in the utility model, its further design is: described thimble is divided into the first thimble, the second thimble, the 3rd thimble, the 4th thimble, the 5th thimble and the 6th thimble；Described first thimble and the second thimble all electrically connect with power supply circuits, and described 3rd thimble and the 4th thimble all electrically connect with signal input terminal, and described 5th thimble and the 6th thimble all electrically connect with calibrating terminal.
Measurement jig described in the utility model, its further design is: described power supply circuits include three terminal regulator, resistance R1 and resistance R2；Wherein, 3 pins of three terminal regulator are connected with power supply terminal, and 1 pin of three terminal regulator connects through resistance R2 ground connection, 2 pins of three terminal regulator and the first thimble, and resistance R1 is connected between 1 pin of three terminal regulator and 2 pins.
Measurement jig described in the utility model, its further design is: being connected between 3 pins and the power supply terminal of described three terminal regulator has filter capacitor C1 and filter capacitor C 2；Connect between 2 pins and first thimble of described three terminal regulator and have filter capacitor C3 and filter capacitor C4.
The beneficial effects of the utility model are:
This utility model devises a kind of measurement jig, this measurement jig makes technical staff when testing Bluetooth circuit, without re-using the equipment such as computer, data collecting card, programmable power supply, only Bluetooth circuit plate to be measured need to be inserted measurement jig energising, just can start test.This tool is simple to operate, easy to use, relatively low to the operation level requirement of technical staff, and low price, test process is short, and the tool life-span is long.
Accompanying drawing explanation
With detailed description of the invention, this utility model is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is the structure composition schematic diagram of this utility model measurement jig；
Fig. 2 is the schematic diagram of this utility model measurement jig power supply circuits；
Fig. 3 is this utility model measurement jig test process schematic diagram.
Detailed description of the invention
Fig. 1 is the structural representation of a kind of Bluetooth circuit measurement jig described in the utility model.This measurement jig includes pedestal 1, and pedestal 1 is provided with fixing device 2, and fixing device 2 is used for fixing Bluetooth circuit to be measured 3 as shown in Figure 3.Fixing device 2 is draw-in groove or covering plate structure.Thimble 4 it is provided with in fixing device 2；Pedestal 1 is additionally provided with power supply circuits 5, and these power supply circuits 5 electrically connect with thimble 4.Power supply terminal 6, signal input terminal 7 and calibrating terminal 8 it is additionally provided with on pedestal 1.Wherein, power supply terminal 6 is connected with power supply circuits 5, for providing voltage to power supply circuits 5；Signal input terminal 7 and calibrating terminal 8 all electrically connect with thimble 4, and signal input terminal 7 is for sending into low frequency signal in Bluetooth circuit 3 to be measured, and calibrating terminal 8 is for detecting the output voltage of Bluetooth circuit 3 to be measured.
Wherein, thimble 4 is divided into the first thimble the 41, second thimble the 42, the 3rd thimble the 43, the 4th thimble the 44, the 5th thimble 45 and the 6th thimble 46.Wherein, the first thimble 41 and the second thimble 42 all electrically connect with power supply circuits 5, and the 3rd thimble 43 and the 4th thimble 44 all electrically connect with signal input terminal 7, and the 5th thimble 45 and the 6th thimble 46 all electrically connect with calibrating terminal 8.
After Bluetooth circuit 3 to be measured is fixing by fixing device 2, the associated terminal in Bluetooth circuit 3 to be measured all with thimble 4 reliable contacts, thus Bluetooth circuit 3 to be measured is accessed power supply circuits 5.
As in figure 2 it is shown, in power supply circuits 5 of the present utility model, 3 pins of three terminal regulator are connected with positive pole, one end of electric capacity C2 of electrochemical capacitor C1 respectively, the negative pole of electrochemical capacitor C1 and the equal ground connection of the other end of electric capacity C2；1 pin of three terminal regulator is through resistance R2 ground connection；2 pins of three terminal regulator are connected with positive pole, one end of electric capacity C4 of electrochemical capacitor C3 respectively, the negative pole of electrochemical capacitor C3 and the equal ground connection of the other end of electric capacity C4；It is also associated with resistance R1 between 1 pin and 2 pins of three terminal regulator.
In said structure, the concrete model of three terminal regulator is chosen as LM317.3rd pin of LM317 three terminal regulator is voltage input end, is used for inputting+5V voltage；2nd pin of LM317 three terminal regulator is voltage output end, is used for exporting adjustable voltage.Owing to the operating voltage range of Bluetooth circuit 3 to be measured is 3.7～4.2V, therefore the adjustable voltage of LM317 three terminal regulator the 2nd pin output 3.7～4.2V in the design.In order to realize above-mentioned adjustable voltage, R1 is set to reference resistance, and R2 is sample resistance, according to regulating the resistance of R2 to regulate the output voltage of LM317 three terminal regulator the 2nd pin.Electrochemical capacitor C1 and electrochemical capacitor C3 is used for low frequency filtering, and electric capacity C2 and electric capacity C4 is used for High frequency filter.
As shown in Figure 3.Before Bluetooth circuit 3 to be measured starts test, power supply terminal 6 is connected to+5V power supply through switch, and signal input terminal 7 is connected to low frequency signal generator, and calibrating terminal 8 connects voltmeter or circuit tester.Wherein, low frequency signal generator for providing the low frequency signal of 1KHz to Bluetooth circuit 3 to be measured, and the low frequency signal of this 1KHz also can provide by LM324 integrated circuit.Voltmeter or circuit tester are for measuring the output end voltage of Bluetooth circuit 3 to be measured.
When starting to test, Bluetooth circuit 3 to be measured is placed in fixing device 2, and on and off switch is switched on, and+5V voltage delivers to the 3rd pin of LM317 three terminal regulator after electrochemical capacitor C1 and electric capacity C2 filters.The adjustable voltage of the 2nd pin output 3.7～4.2V of LM317 three terminal regulator, this adjustable voltage delivers to the first thimble 41 after electrochemical capacitor C3 and electric capacity C4 filter, after deliver to the terminal V+ that is in close contact in Bluetooth circuit 3 to be measured with the first thimble 41.Terminal V-and the second thimble 42 in Bluetooth circuit 3 to be measured are in close contact and ground connection.3rd thimble 43 and the 4th thimble 44 are in close contact with two terminals welding MIC in Bluetooth circuit 3 to be measured respectively.5th thimble 45 is in close contact with the terminal SPK+ in Bluetooth circuit 3 to be measured, and the 6th thimble 46 is in close contact with the terminal SPK-in Bluetooth circuit 3 to be measured.
MFB key in Bluetooth circuit 3 to be measured is the switch switch of Bluetooth circuit 3 to be measured.Assume that Bluetooth circuit 3 to be measured is qualified circuit, do not have fault, then, after pressing MFB key, Bluetooth circuit 3 to be measured is started shooting, if now the low frequency signal of 1KHz is not sent at MIC by low frequency signal generator, then voltmeter or circuit tester are by the output voltage of display 0.5mV；If the low frequency signal of 1KHz is sent at MIC by low frequency signal generator, then voltmeter or circuit tester are by the output voltage of display 1.8V.If voltmeter or circuit tester display voltage are not inconsistent with said circumstances, then illustrate that Bluetooth circuit 3 to be measured itself is faulty, for defective circuit.
Thus, before Bluetooth circuit 3 to be measured welds MIC, first Bluetooth circuit 3 to be measured is carried out output voltage test, to judge that it is the most faulty.When Bluetooth circuit 3 to be measured detect qualified after, then it is welded MIC, carries out output voltage test the most again, if test result is normal, then explanation MIC function is normal；If test result is abnormal, then explanation MIC breaks down.
The foregoing is only preferred embodiments of the present utility model, as long as realizing within the technical scheme of this utility model purpose broadly falls into protection domain of the present utility model with essentially identical means.
Claims (7)
1. a Bluetooth circuit measurement jig, including pedestal (1), described pedestal (1) is provided with fixing device (2), and described fixing device (2) is used for fixing Bluetooth circuit to be measured (3), is provided with thimble (4) in described fixing device (2)；It is characterized in that: described pedestal (1) is provided with power supply circuits (5), these power supply circuits (5) electrically connect with thimble (4), for powering to Bluetooth circuit to be measured (3) by thimble (4)；Power supply terminal (6), signal input terminal (7) and calibrating terminal (8) it is additionally provided with on described pedestal (1)；Described power supply terminal (6) is connected with power supply circuits (5), for providing voltage to power supply circuits (5), described signal input terminal (7) and calibrating terminal (8) all electrically connect with thimble (4), described signal input terminal (7) is for sending into low frequency signal in Bluetooth circuit to be measured (3), and described calibrating terminal (8) is used for detecting the output voltage of Bluetooth circuit to be measured (3).
A kind of Bluetooth circuit measurement jig the most according to claim 1, it is characterised in that: described fixing device (2) is draw-in groove or cover plate.
A kind of Bluetooth circuit measurement jig the most according to claim 1, it is characterised in that: described signal input terminal (7) is connected with low frequency signal generator or LM324 integrated circuit.
A kind of Bluetooth circuit measurement jig the most according to claim 1, it is characterised in that: described calibrating terminal (8) is connected with voltmeter or circuit tester.
A kind of Bluetooth circuit measurement jig the most according to claim 1, it is characterised in that: described thimble (4) is divided into the first thimble (41), the second thimble (42), the 3rd thimble (43), the 4th thimble (44), the 5th thimble (45) and the 6th thimble (46)；Described first thimble (41) and the second thimble (42) all electrically connect with power supply circuits (5), described 3rd thimble (43) and the 4th thimble (44) all electrically connect with signal input terminal (7), and described 5th thimble (45) and the 6th thimble (46) all electrically connect with calibrating terminal (8).
A kind of Bluetooth circuit measurement jig the most according to claim 5, it is characterised in that: described power supply circuits (5) include three terminal regulator, resistance R1 and resistance R2；Wherein, 3 pins of three terminal regulator are connected with power supply terminal (6), and 1 pin of three terminal regulator connects through resistance R2 ground connection, 2 pins of three terminal regulator and the first thimble (41), and resistance R1 is connected between 1 pin of three terminal regulator and 2 pins.
A kind of Bluetooth circuit measurement jig the most according to claim 6, it is characterised in that: it is connected between 3 pins of described three terminal regulator with power supply terminal (6) and has filter capacitor C1 and filter capacitor C
2；Connect between 2 pins and first thimble (41) of described three terminal regulator and have filter capacitor C3 and filter capacitor C4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620500473.2U CN205787007U (en) | 2016-05-26 | 2016-05-26 | A kind of Bluetooth circuit measurement jig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620500473.2U CN205787007U (en) | 2016-05-26 | 2016-05-26 | A kind of Bluetooth circuit measurement jig |
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| Publication Number | Publication Date |
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| CN205787007U true CN205787007U (en) | 2016-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620500473.2U Active CN205787007U (en) | 2016-05-26 | 2016-05-26 | A kind of Bluetooth circuit measurement jig |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105842613A (en) * | 2016-05-26 | 2016-08-10 | 中山市天键电声有限公司 | Bluetooth circuit testing jig |
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2016
- 2016-05-26 CN CN201620500473.2U patent/CN205787007U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105842613A (en) * | 2016-05-26 | 2016-08-10 | 中山市天键电声有限公司 | Bluetooth circuit testing jig |
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