CN204903713U - Novel logical state test pen device - Google Patents
Novel logical state test pen device Download PDFInfo
- Publication number
- CN204903713U CN204903713U CN201520518517.XU CN201520518517U CN204903713U CN 204903713 U CN204903713 U CN 204903713U CN 201520518517 U CN201520518517 U CN 201520518517U CN 204903713 U CN204903713 U CN 204903713U
- Authority
- CN
- China
- Prior art keywords
- sheffer stroke
- stroke gate
- loudspeaker
- sound
- connects
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a novel logical state test pen device, its aim at provide one kind can be fine the measurement requirement of satisfying the correlation technique personnel, as long as according to sending out the different sound of different light sums alright height in order to know the contact level, easy operation, detect accurate, convenient and practical, the utility model discloses a test probes, test circuit and luminous sound -producing circuit, when test probes tested the high level, red emitting diode was bright and accompany the loudspeaker of sending out long sound to make a sound, and when measuring probe tested the low level, green emitting diode was bright and accompany loudspeaker of sending out short sound to make a sound, and when test probes was unsettled, two emitting diode extinguish, and two loudspeaker are also loud.
Description
Technical field
The utility model relates to a kind of test pen, particularly relates to a kind of new logic state verification pen device.
Background technology
In the middle of daily life, we often need the logic state of test circuit, and our often practical testing tool is multimeter, and when use multimeter, we need to rotate frequently to current gear or voltage gear, usually there will be beyond thought error during measurement.Why this reason, we thirst for a kind of convenient and practical logic state test pen.
Utility model content
For overcoming the above problems, the utility model provides a kind of new logic state verification pen device, the measurement requirement of person skilled can well be met, as long as the height of contact level just can be known according to the light sending out different and different sound, simple to operate, detect accurate, convenient and practical.
For reaching above-mentioned purpose, a kind of new logic state verification of the utility model pen device, described device comprises test probe, forward red light emitting diodes, sends loudspeaker, the oppositely green LED of long sound and send the loudspeaker of short sound, described test probe comprises two branch roads, upper branch road connects a forward diode, described forward diode is connected to an input end of the first Sheffer stroke gate, another input end of described first Sheffer stroke gate connects the resistance R1 of 10k, the other end ground connection of resistance R1, the output of described first Sheffer stroke gate is connected to the input end of the second Sheffer stroke gate, the output terminal of described second Sheffer stroke gate connects described forward red light emitting diodes, described forward red light emitting diodes connects the one end of the loudspeaker sending long sound again, the described other end sending the loudspeaker of long sound connects the resistance R2 of 360 ohm, resistance R2 feeds back to the input end of described second Sheffer stroke gate again, lower branch road connects a backward dioded, and described backward dioded is connected to an input end of the 3rd Sheffer stroke gate, and another input end of described first Sheffer stroke gate connects the resistance R3 of 10k, the power supply of another termination+5V of resistance R3, the output of described 3rd Sheffer stroke gate is connected to the input end of the 4th Sheffer stroke gate, the output terminal of described 4th Sheffer stroke gate connects the reverse light emitting diode of described reverse green, one end of the loudspeaker of short sound is sent described in described reverse green LED connects again, the described other end sending the loudspeaker of short sound connects the resistance R4 of 360 ohm, and resistance R4 feeds back to the input end of described 4th Sheffer stroke gate again.
The utility model logic state test pen device difference from prior art is that the utility model achieves following technique effect:
After the work of the utility model logic state test pen device circuit, test probe A can test the logic state of low and high level.According to the logic level height of test, red and green LED is distinguished bright, can send length sound along with loudspeaker simultaneously.
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is the logic state test circuit of the utility model logic state test pen device;
Fig. 2 is the structural representation of the utility model logic state test pen device.
Description of reference numerals: 1: test probe; 2: red light emitting diodes; 3: the loudspeaker LS1 sending long sound; 4: the loudspeaker LS2 sending short sound; 5: green LED; G1, G2, G3, G4: Sheffer stroke gate; A: test probe; LS1 (Speaker): the loudspeaker sending long sound; LS2 (Speaker): the loudspeaker sending short sound; LED1: red light emitting diodes; LED2: green LED; The resistance of R1, R3:10k ohm; The resistance of R2, R4:360 ohm.
Embodiment
Below in conjunction with drawings and Examples, to above-mentioned being described in more detail with other technical characteristic and advantage of the utility model.
Embodiment 1
Connect test pen power supply, circuit enters duty.If test probe A is unsettled, the input end of the Sheffer stroke gate G1 of upper branch road is connected to ground, so input end is low level, exports as high level.The high level exported is as the input signal of Sheffer stroke gate G2, and the output of such Sheffer stroke gate G2 is low level, and low level can not drive the lumination of light emitting diode of forward redness, can not drive loudspeaker LS1 sounding.So red light emitting diodes extinguishes, the loudspeaker sending out sound long also not sound.Equally, the input end of the Sheffer stroke gate G3 of lower branch road is connected with power supply, so input end is high level, exports as low level.The low level exported is as the input signal of Sheffer stroke gate G4, and the output of such Sheffer stroke gate G4 is high level, and high level can not drive oppositely green lumination of light emitting diode, can not drive loudspeaker LS2 sounding.So green LED extinguishes, the loudspeaker sending out sound short also not sound.
Embodiment 2
Connect test pen power supply, circuit enters duty.If test probe A tests high level, the input end of the Sheffer stroke gate G1 of upper branch road is then high level, exports as low level.The low level exported is as the input signal of Sheffer stroke gate G2, and the output of such Sheffer stroke gate G2 is high level, and high level then can drive the lumination of light emitting diode of forward redness, also can drive loudspeaker LS1 sounding.So red light emitting diodes is bright, the horns blared simultaneously sending out sound long.The backward dioded VD2 of lower branch road ends, and the input end of Sheffer stroke gate G3 is still connected with power supply, and its input end is still high level, exports as low level.The low level exported is as the input signal of Sheffer stroke gate G4, and the output of such Sheffer stroke gate G4 is high level, and high level can not drive oppositely green lumination of light emitting diode, can not drive loudspeaker LS2 sounding.So green LED extinguishes, the loudspeaker sending out sound short also not sound.
Embodiment 3
Connect test pen power supply, circuit enters duty.If test probe A tests low level, the forward diode VD1 cut-off of upper branch road, the input end of Sheffer stroke gate G1, because of ground connection, so be input as low level, exports as high level.The high level exported is as the input signal of Sheffer stroke gate G2, and the output of such Sheffer stroke gate G2 is low level, and low level then can not drive the lumination of light emitting diode of forward redness, can not drive loudspeaker LS1 sounding.So red light emitting diodes extinguishes, the loudspeaker not sound simultaneously sending out sound long.The backward dioded VD1 conducting of lower branch road, the input end of Sheffer stroke gate G3, so input end is still low level, is exported as high level by clamped in low level.The high level exported is as the input signal of Sheffer stroke gate G4, and the output of such Sheffer stroke gate G4 is low level, and low level then can drive oppositely green lumination of light emitting diode, also can drive loudspeaker LS2 sounding.So green LED is bright, the horns blared sending out sound short.
Above-described embodiment is only be described preferred implementation of the present utility model; not scope of the present utility model is limited; under the prerequisite not departing from the utility model design spirit; the various distortion that those of ordinary skill in the art make the technical solution of the utility model and improvement, all should fall in protection domain that the utility model claims determine.
Claims (1)
1. a new logic state verification pen device, is characterized in that: described device comprises test probe, forward red light emitting diodes, sends loudspeaker, the oppositely green LED of long sound and send the loudspeaker of short sound, described test probe comprises two branch roads, upper branch road connects a forward diode, described forward diode is connected to an input end of the first Sheffer stroke gate, another input end of described first Sheffer stroke gate connects the resistance R1 of 10k, the other end ground connection of resistance R1, the output of described first Sheffer stroke gate is connected to the input end of the second Sheffer stroke gate, the output terminal of described second Sheffer stroke gate connects described forward red light emitting diodes, described forward red light emitting diodes connects the one end of the loudspeaker sending long sound again, the described other end sending the loudspeaker of long sound connects the resistance R2 of 360 ohm, resistance R2 feeds back to the input end of described second Sheffer stroke gate again, lower branch road connects a backward dioded, and described backward dioded is connected to an input end of the 3rd Sheffer stroke gate, and another input end of described first Sheffer stroke gate connects the resistance R3 of 10k, the power supply of another termination+5V of resistance R3, the output of described 3rd Sheffer stroke gate is connected to the input end of the 4th Sheffer stroke gate, the output terminal of described 4th Sheffer stroke gate connects the reverse light emitting diode of described reverse green, one end of the loudspeaker of short sound is sent described in described reverse green LED connects again, the described other end sending the loudspeaker of short sound connects the resistance R4 of 360 ohm, and resistance R4 feeds back to the input end of described 4th Sheffer stroke gate again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520518517.XU CN204903713U (en) | 2015-07-16 | 2015-07-16 | Novel logical state test pen device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520518517.XU CN204903713U (en) | 2015-07-16 | 2015-07-16 | Novel logical state test pen device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204903713U true CN204903713U (en) | 2015-12-23 |
Family
ID=54925880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520518517.XU Expired - Fee Related CN204903713U (en) | 2015-07-16 | 2015-07-16 | Novel logical state test pen device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204903713U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105974206A (en) * | 2016-04-25 | 2016-09-28 | 郑州宇通客车股份有限公司 | High-side/low-side effective signal detection circuit |
-
2015
- 2015-07-16 CN CN201520518517.XU patent/CN204903713U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105974206A (en) * | 2016-04-25 | 2016-09-28 | 郑州宇通客车股份有限公司 | High-side/low-side effective signal detection circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151223 Termination date: 20180716 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |