CN102968084A - Electric eraser circuit - Google Patents
Electric eraser circuit Download PDFInfo
- Publication number
- CN102968084A CN102968084A CN 201210493451 CN201210493451A CN102968084A CN 102968084 A CN102968084 A CN 102968084A CN 201210493451 CN201210493451 CN 201210493451 CN 201210493451 A CN201210493451 A CN 201210493451A CN 102968084 A CN102968084 A CN 102968084A
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- microprocessor
- output terminal
- circuit
- input end
- output end
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Abstract
The invention discloses an electric eraser circuit which belongs to the technical field of a teaching appliance. The electric eraser circuit comprises a sensor, a power supply, a switch, a microprocessor, a dust exhaust apparatus, a drive circuit and a motor, wherein the output end of the sensor is connected with the input end of the microprocessor; positive and negative terminals of the power supply are respectively connected with positive and negative terminals of the microprocessor; the output end of the switch is connected with the input end of the microprocessor; the output end of the microprocessor is connected with the control end of the dust exhaust apparatus; the input end of the drive circuit is connected with the output end of the microprocessor; and a winding of the motor is connected with the output end of the drive circuit. The electric eraser circuit has the advantages of being simple in structure, convenient to operate and good in stability.
Description
Technical field
The invention belongs to the teaching aid technical field, particularly a kind of electric blackboard eraser circuit.
Background technology
Chalk is the instrument of transmission of culture, also is the drugs of harm health.The slip-stick artist of how many souls suffers from chronic illness because of again and again dust pollution, inspiration tracheae, has left too early the dais.Although country remedies this occupational illness to teacher's harm with subsidy always, life is difficult to go to compensate with money.Be sitting in front-seat student, be subject to equally the threat of dust.This is the difficulty that scientific circles can't capture for a long time.
Summary of the invention
Deficiency for prior art exists the invention provides a kind of electric blackboard eraser circuit.
Technical scheme of the present invention is achieved in that this electric blackboard eraser circuit comprises sensor, power supply, switch, microprocessor, dust sucking plant, driving circuit and motor, wherein the input end of the output terminal of sensor and microprocessor is connected, the positive and negative terminal of power supply is connected with the positive and negative terminal of microprocessor respectively, the output terminal of switch is connected with the input end of microprocessor, the output terminal of microprocessor is connected with the control end of dust sucking plant, the input end of driving circuit is connected with the output terminal of microprocessor, and the winding of motor is connected with the output terminal of driving circuit.
Advantage of the present invention: simple in structure, easy to operate, good stability.
Description of drawings
Fig. 1 is the electric blackboard eraser circuit theory diagrams.
Embodiment
Detailed construction of the present invention is illustrated in conjunction with the embodiments.
This electric blackboard eraser circuit theory as shown in Figure 1, it is PIC16F877 that microprocessor is selected model, the selection of Motor stepper motor, sensor is selected HAL3134.
This electric blackboard eraser circuit comprises sensor, power supply, switch, microprocessor, dust sucking plant, driving circuit and motor, wherein the input end of the output terminal of sensor and microprocessor is connected, the positive and negative terminal of power supply is connected with the positive and negative terminal of microprocessor respectively, the output terminal of switch is connected with the input end of microprocessor, the output terminal of microprocessor is connected with the control end of dust sucking plant, the input end of driving circuit is connected with the output terminal of microprocessor, and the winding of motor is connected with the output terminal of driving circuit.
Claims (1)
1. electric blackboard eraser circuit, it is characterized in that: comprise sensor, power supply, switch, microprocessor, dust sucking plant, driving circuit and motor, wherein the input end of the output terminal of sensor and microprocessor is connected, the positive and negative terminal of power supply is connected with the positive and negative terminal of microprocessor respectively, the output terminal of switch is connected with the input end of microprocessor, the output terminal of microprocessor is connected with the control end of dust sucking plant, the input end of driving circuit is connected with the output terminal of microprocessor, and the winding of motor is connected with the output terminal of driving circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210493451 CN102968084A (en) | 2012-11-28 | 2012-11-28 | Electric eraser circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210493451 CN102968084A (en) | 2012-11-28 | 2012-11-28 | Electric eraser circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102968084A true CN102968084A (en) | 2013-03-13 |
Family
ID=47798273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210493451 Pending CN102968084A (en) | 2012-11-28 | 2012-11-28 | Electric eraser circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102968084A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103660735A (en) * | 2013-12-25 | 2014-03-26 | 苏州市职业大学 | Intelligent active dust absorbing blackboard |
| CN104908494A (en) * | 2014-03-12 | 2015-09-16 | 南京化工职业技术学院 | Self-generating electricity dust collection blackboard eraser |
| CN105252942A (en) * | 2014-07-19 | 2016-01-20 | 南京化工职业技术学院 | Spontaneous electric dust collecting blackboard eraser |
-
2012
- 2012-11-28 CN CN 201210493451 patent/CN102968084A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103660735A (en) * | 2013-12-25 | 2014-03-26 | 苏州市职业大学 | Intelligent active dust absorbing blackboard |
| CN104908494A (en) * | 2014-03-12 | 2015-09-16 | 南京化工职业技术学院 | Self-generating electricity dust collection blackboard eraser |
| CN105252942A (en) * | 2014-07-19 | 2016-01-20 | 南京化工职业技术学院 | Spontaneous electric dust collecting blackboard eraser |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130313 |