CN209488541U - A kind of printer back-emf recovery circuit and its printer - Google Patents
A kind of printer back-emf recovery circuit and its printer Download PDFInfo
- Publication number
- CN209488541U CN209488541U CN201920118058.4U CN201920118058U CN209488541U CN 209488541 U CN209488541 U CN 209488541U CN 201920118058 U CN201920118058 U CN 201920118058U CN 209488541 U CN209488541 U CN 209488541U
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- Prior art keywords
- drive motor
- diode
- chart drive
- switching tube
- emf
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- 238000011084 recovery Methods 0.000 title claims abstract description 16
- 230000005611 electricity Effects 0.000 claims description 6
- 239000003990 capacitor Substances 0.000 claims description 4
- 239000004065 semiconductor Substances 0.000 description 3
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
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Abstract
The utility model discloses a kind of printer back-emf recovery circuit and its printers, including power supply end, control terminal, chart drive motor, switching tube, first diode, first inductance, rechargeable battery and the second diode, one end of the power supply end connection chart drive motor, the other end of chart drive motor is connected to a switch pin of switching tube, another switch pin of switching tube is grounded, the control terminal is connected to the control pin of switching tube, the other end of chart drive motor is additionally coupled to the anode of first diode, the cathode of first diode is connected to the anode of rechargeable battery, the cathode of rechargeable battery is grounded and is connected to the anode of the second diode, the cathode of second diode is connected to one end that chart drive motor is connect with power supply end, the harm of back-emf can be effectively eliminated, utilization can be recycled again, save energy Source.
Description
Technical field
The utility model relates to printer technology field, especially a kind of printer back-emf recovery circuit and its printing.
Background technique
Printer is the equipment for being frequently necessary to use in routine office work, and frequency of use is high, therefore also printer is required to go out less
Mistake, failure are few.But since the chart drive motor of printer can regard an inductance coil as, power supply is disconnected in chart drive motor,
The coil of chart drive motor can generate an inverse electromotive force, and since printer use is more frequent, shutting down can all produce every time
It is raw, the electronic component inside control panel will be damaged over time, influence printer service life, improve failure rate,
Therefore need to eliminate the back-emf generated when the power-off of printer paper-feeding motor.
Utility model content
To solve the above problems, the purpose of this utility model is to provide a kind of printer back-emf recovery circuit and its beating
Print, can effectively eliminate the harm of back-emf, and can be recycled utilization, energy saving.
The technical solution adopted by the utility model to solve the problem is as follows:
A kind of printer back-emf recovery circuit, including power supply end, control terminal, chart drive motor, switching tube, the one or two
Pole pipe, the first inductance, rechargeable battery and the second diode, one end of the power supply end connection chart drive motor, chart drive motor
The other end be connected to a switch pin of switching tube, another switch pin ground connection of switching tube, the control terminal connection
To the control pin of switching tube, the other end of chart drive motor is additionally coupled to the anode of first diode, the cathode of first diode
It is connected to the anode of rechargeable battery, the cathode of rechargeable battery is grounded and is connected to the anode of the second diode, the second diode
Cathode is connected to one end that chart drive motor is connect with power supply end.
Further, the switching tube is metal-oxide-semiconductor or triode.
It further, further include voltage acquisition end, first resistor and second resistance, one end of the first resistor is connected to away
One switch pin junction of paper motor and switching tube, the other end of first resistor are connected to one end of second resistance, and second
The other end of resistance is grounded, and voltage acquisition end is connected at the tie point of first resistor and second resistance.
It further, further include the first capacitor for being connected in parallel on rechargeable battery both ends.
A kind of printer, including a kind of printer back-emf recovery circuit described above.
One or more technical solution provided by the embodiment of the utility model, at least has the following beneficial effects: paper feed
When motor works, chart drive motor is supplied voltage to by power supply end output, which exports high level so that at switching tube
In on state；When power supply end stops output supply voltage, chart drive motor generates an opposite polarity voltage, this time control
Output low level in end processed ends switching tube, chart drive motor, first diode, the first inductance, rechargeable battery and the second diode
A circuit is formed, back-emf is absorbed, the harm of back-emf can be effectively eliminated, and utilization can be recycled, is saved
The about energy.
Detailed description of the invention
The utility model is described in further detail with example with reference to the accompanying drawing.
Fig. 1 is a kind of schematic diagram of printer back-emf recovery circuit of the utility model one embodiment.
Specific embodiment
Referring to Fig.1, one embodiment of the utility model provides a kind of printer back-emf recovery circuit, including power supply electricity
Source 100, control terminal 200, chart drive motor 300, switching tube Q1, first diode D1, the first inductance L1, rechargeable battery CD and
Two diode D2, the power supply end 100 connect one end of chart drive motor 300, and the other end of chart drive motor 300 is connected to out
A switch pin of pipe Q1, another switch pin ground connection of switching tube Q1 are closed, the control terminal 200 is connected to switching tube Q1
Control pin, the other end of chart drive motor 300 is additionally coupled to the anode of first diode D1, and the cathode of first diode D1 connects
It is connected to the anode of rechargeable battery CD, the cathode of rechargeable battery CD is grounded and is connected to the anode of the second diode D2, the two or two pole
The cathode of pipe D2 is connected to one end that chart drive motor 300 is connect with power supply end 100.
In the present embodiment, when chart drive motor 300 works, chart drive motor is supplied voltage to by the output of power supply end 100
300, which exports high level so that switching tube Q1 is in the conductive state；Power supply end 100 stops output power supply electricity
When pressure, chart drive motor 300 generates an opposite polarity voltage, and control terminal 200, which exports low level, at this time ends switching tube Q1,
Chart drive motor 300, first diode D1, the first inductance L1, rechargeable battery CD and the second diode D2 form a circuit, will be anti-
Potential absorbs, and can effectively eliminate the harm of back-emf, and can be recycled utilization, energy saving.In addition, charging electricity
Pond CD to be arranged to than power supply end 100 export supply voltage it is high so that chart drive motor 300 work when, first diode
The voltage of D1 cathode is greater than the voltage of anode, and first diode D1 is in off state.
Preferably, the switching tube Q1 is metal-oxide-semiconductor or triode.
Another embodiment of the utility model also provides a kind of printer back-emf recovery circuit, wherein further includes electricity
Collection terminal 400, first resistor R1 and second resistance R2 are pressed, one end of the first resistor R1 is connected to chart drive motor 300 and opens
A switch pin junction of pipe Q1 is closed, the other end of first resistor R1 is connected to one end of second resistance R2, second resistance
The other end of R2 is grounded, and voltage acquisition end 400 is connected at the tie point of first resistor R1 and second resistance R2.
In the present embodiment, for first resistor R1 and second resistance R2 for dividing, voltage acquisition end 400 is connected to the first electricity
It hinders between R1 and second resistance R2, so that the voltage at the tie point of chart drive motor 300 and switching tube Q1 is detected, to control
End 200 processed exports high level or low level.When voltage is greater than rechargeable battery CD at this, control terminal 200 exports low level, opens
Close pipe Q1 cut-off；When voltage is less than rechargeable battery CD at this, control terminal 200 exports high level, switching tube Q1 conducting.
It preferably, further include the first capacitor C1 for being connected in parallel on the both ends rechargeable battery CD.
A kind of printer includes power supply end including a kind of printer back-emf recovery circuit described above
100, control terminal 200, chart drive motor 300, switching tube Q1, first diode D1, the first inductance L1, rechargeable battery CD and the two or two
Pole pipe D2, the power supply end 100 connect one end of chart drive motor 300, and the other end of chart drive motor 300 is connected to switching tube
A switch pin of Q1, another switch pin ground connection of switching tube Q1, the control terminal 200 are connected to the control of switching tube Q1
Pin processed, the other end of chart drive motor 300 are additionally coupled to the anode of first diode D1, and the cathode of first diode D1 is connected to
The cathode of the anode of rechargeable battery CD, rechargeable battery CD is grounded and is connected to the anode of the second diode D2, the second diode D2
Cathode be connected to one end that chart drive motor 300 is connect with power supply end 100；The switching tube Q1 is metal-oxide-semiconductor or three poles
Pipe；It further include that voltage acquisition end 400, first resistor R1 and second resistance R2, one end of the first resistor R1 are connected to paper feed
One switch pin junction of motor 300 and switching tube Q1, the other end of first resistor R1 are connected to the one of second resistance R2
End, the other end ground connection of second resistance R2, voltage acquisition end 400 is connected to the tie point of first resistor R1 and second resistance R2
Place；It further include the first capacitor C1 for being connected in parallel on the both ends rechargeable battery CD.
In the present embodiment, this printer has all technical features of above-mentioned printer back-emf recovery circuit, therefore,
This printer can effectively eliminate the harm of back-emf, and can be recycled utilization, energy saving.
The above, the only preferred embodiment of the utility model, the utility model are not limited to above-mentioned implementation
Mode, as long as its technical effect for reaching the utility model with identical means, all should belong to the protection scope of the utility model.
Claims (5)
1. a kind of printer back-emf recovery circuit, which is characterized in that including power supply end, control terminal, chart drive motor, switch
Pipe, first diode, the first inductance, rechargeable battery and the second diode, one end of the power supply end connection chart drive motor,
The other end of chart drive motor is connected to a switch pin of switching tube, another switch pin ground connection of switching tube, the control
End processed is connected to the control pin of switching tube, and the other end of chart drive motor is additionally coupled to the anode of first diode, the one or two pole
The cathode of pipe is connected to the anode of rechargeable battery, and the cathode of rechargeable battery is grounded and is connected to the anode of the second diode, and second
The cathode of diode is connected to one end that chart drive motor is connect with power supply end.
2. a kind of printer back-emf recovery circuit according to claim 1, which is characterized in that the switching tube is MOS
Pipe or triode.
3. a kind of printer back-emf recovery circuit according to claim 1, which is characterized in that further include voltage acquisition
End, first resistor and second resistance, one end of the first resistor are connected to a switch pin of chart drive motor and switching tube
Junction, the other end of first resistor are connected to one end of second resistance, and the other end ground connection of second resistance, voltage acquisition end connects
It is connected at the tie point of first resistor and second resistance.
4. a kind of printer back-emf recovery circuit according to claim 1, which is characterized in that further include being connected in parallel on charging
The first capacitor at battery both ends.
5. a kind of printer, which is characterized in that recycle electricity including a kind of any printer back-emf of claim 1-4
Road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920118058.4U CN209488541U (en) | 2019-01-23 | 2019-01-23 | A kind of printer back-emf recovery circuit and its printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920118058.4U CN209488541U (en) | 2019-01-23 | 2019-01-23 | A kind of printer back-emf recovery circuit and its printer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209488541U true CN209488541U (en) | 2019-10-11 |
Family
ID=68132235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920118058.4U Expired - Fee Related CN209488541U (en) | 2019-01-23 | 2019-01-23 | A kind of printer back-emf recovery circuit and its printer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209488541U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117748998A (en) * | 2023-12-29 | 2024-03-22 | 广州市品众电子科技有限公司 | Energy-saving motor driving circuit and control method thereof |
-
2019
- 2019-01-23 CN CN201920118058.4U patent/CN209488541U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117748998A (en) * | 2023-12-29 | 2024-03-22 | 广州市品众电子科技有限公司 | Energy-saving motor driving circuit and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191011 |