CN204858268U - Laser -driven ware - Google Patents
Laser -driven ware Download PDFInfo
- Publication number
- CN204858268U CN204858268U CN201520220786.8U CN201520220786U CN204858268U CN 204858268 U CN204858268 U CN 204858268U CN 201520220786 U CN201520220786 U CN 201520220786U CN 204858268 U CN204858268 U CN 204858268U
- Authority
- CN
- China
- Prior art keywords
- triode
- resistance
- diode
- laser
- emitter
- 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
Links
Landscapes
- Semiconductor Lasers (AREA)
Abstract
The utility model discloses a laser -driven ware, including triode Q1, audion Q2, resistance R1, inductance L1, diode D1, laser diode D2 and photosensitive diode D3. This practical laser -driven ware, it also can be worked when a 1.5V power VCC discharges to 1V even, has improved at the electric quantity less than the reliability under the condition with two current control triodes to allowwing strong laser electric current with luminous, and making the utilization ratio of power improve greatly, and used triode Q5 to counterpoint with triode Q6 moreover and concatenate, if one of them breaks down and the short circuit, another still can maintain safe level, especially adapted using widely with the electric current.
Description
Technical field
The utility model relates to a kind of driver, specifically a kind of laser driver.
Background technology
Laser application scope widely, as lecturer impart knowledge to students use laser pen etc., but the laser product power consumptions such as laser pen are larger, higher to the voltage request of power supply, reduce to a certain extent at power supply voltage and just cannot use, just be dropped when causing the power supply VCC inside of a lot of power supply to also have a lot of electricity to store, waste electric energy greatly.
Utility model content
The purpose of this utility model is the laser driver providing a kind of low voltage drive, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
A kind of laser driver, comprises triode Q1, triode Q2, resistance R1, inductance L 1, diode D1, laser diode D2 and photodiode D3, described triode Q1 base stage is contact resistance R1 and triode Q3 collector electrode respectively, and triode Q3 emitter connects connecting triode Q1 emitter respectively, power supply VCC, triode Q2 emitter, resistance R6, laser diode D2 positive pole and photodiode D3 negative pole, triode Q2 base stage is connecting triode Q3 base stage respectively, triode Q2 collector electrode and resistance R2, the resistance R2 other end is connecting triode Q1 collector electrode respectively, inductance L 1 and diode D1 negative pole, diode D1 positive pole is connecting triode Q4 emitter respectively, electric capacity C1, triode Q6 emitter and resistance R7, triode Q4 collector electrode is contact resistance R4 respectively, resistance R5 and the resistance R6 other end, resistance R4 other end connecting triode Q5 base stage, described resistance R5 other end connecting triode Q6 base stage, described triode Q4 base stage contact resistance R3, the resistance R3 other end is the contact resistance R7 other end and photodiode D3 positive pole respectively, described triode Q6 collector electrode connecting triode Q5 emitter, triode Q5 collector electrode connects laser diode D2 negative pole, and the described electric capacity C1 other end connects inductance L 1 other end and the resistance R1 other end and ground connection respectively.
As further program of the utility model: described power supply VCC voltage is greater than 1V.
As the utility model further scheme: described diode D1 is Schottky diode.
Compared with prior art, the beneficial effects of the utility model are: this practical laser driver, it even also can work when a 1.5V power supply VCC discharges into 1V, the reliability in the not enough situation of electricity is improved with two Current Control triodes, and allowed strong laser current with luminous, the utilance of power supply is improved greatly, and use triode Q5 to be connected in series with triode Q6 contraposition, if one of them breaks down and short circuit, electric current still can be maintained safe level by another, is applicable to very much promoting the use of.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of laser driver.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1, in the utility model embodiment, a kind of laser driver, comprises triode Q1, triode Q2, resistance R1, inductance L 1, diode D1, laser diode D2 and photodiode D3, triode Q1 base stage is contact resistance R1 and triode Q3 collector electrode respectively, and triode Q3 emitter connects connecting triode Q1 emitter respectively, power supply VCC, triode Q2 emitter, resistance R6, laser diode D2 positive pole and photodiode D3 negative pole, triode Q2 base stage is connecting triode Q3 base stage respectively, triode Q2 collector electrode and resistance R2, the resistance R2 other end is connecting triode Q1 collector electrode respectively, inductance L 1 and diode D1 negative pole, diode D1 positive pole is connecting triode Q4 emitter respectively, electric capacity C1, triode Q6 emitter and resistance R7, triode Q4 collector electrode is contact resistance R4 respectively, resistance R5 and the resistance R6 other end, resistance R4 other end connecting triode Q5 base stage, resistance R5 other end connecting triode Q6 base stage, triode Q4 base stage contact resistance R3, the resistance R3 other end is the contact resistance R7 other end and photodiode D3 positive pole respectively, triode Q6 collector electrode connecting triode Q5 emitter, triode Q5 collector electrode connects laser diode D2 negative pole, and the electric capacity C1 other end connects inductance L 1 other end and the resistance R1 other end and ground connection respectively.
Power supply VCC voltage is greater than 1V.
Diode D1 is Schottky diode.
Operation principle of the present utility model is: triode Q1, Q2 and Q3 forms a negative impedance, feedback is provided by resistance R2, resistance R1 is used for biased control triode Q1 collector current, inductance L 1 and parasitic capacitance C1 form a resonant circuit, this circuit produces vibration due to negative impedance, therefore when power supply VCC is 1V, the peak-to-peak value of about 3.5V can be produced at triode Q1 collector electrode, Schottky diode D1 and electric capacity C1 forms a half-wave rectifier, for laser diode D2 negative pole provides 3V voltage, power supply VCC voltage is greater than 1V, because herein is provided the working range of at least more than 4V, thus exceeded the threshold value of laser diode D2.
Triode Q5 and triode Q6 controls laser diode D2 electric current, photodiode D3 is used for monitoring laser diode D2 brightness, and send negative feedback by triode Q4, triode Q5 and triode Q6 is biased in suitable collector current, ensure the stable of required laser brightness, use triode Q5 to be connected in series with triode Q6 contraposition, as one of them breaks down and short circuit, electric current still can be maintained safe level by another.
Claims (3)
1. a laser driver, comprises triode Q1, triode Q2, resistance R1, inductance L 1, diode D1, laser diode D2 and photodiode D3, is characterized in that, described triode Q1 base stage is contact resistance R1 and triode Q3 collector electrode respectively, and triode Q3 emitter connects connecting triode Q1 emitter respectively, power supply VCC, triode Q2 emitter, resistance R6, laser diode D2 positive pole and photodiode D3 negative pole, triode Q2 base stage is connecting triode Q3 base stage respectively, triode Q2 collector electrode and resistance R2, the resistance R2 other end is connecting triode Q1 collector electrode respectively, inductance L 1 and diode D1 negative pole, diode D1 positive pole is connecting triode Q4 emitter respectively, electric capacity C1, triode Q6 emitter and resistance R7, triode Q4 collector electrode is contact resistance R4 respectively, resistance R5 and the resistance R6 other end, resistance R4 other end connecting triode Q5 base stage, described resistance R5 other end connecting triode Q6 base stage, described triode Q4 base stage contact resistance R3, the resistance R3 other end is the contact resistance R7 other end and photodiode D3 positive pole respectively, described triode Q6 collector electrode connecting triode Q5 emitter, triode Q5 collector electrode connects laser diode D2 negative pole, and the described electric capacity C1 other end connects inductance L 1 other end and the resistance R1 other end and ground connection respectively.
2. laser driver according to claim 1, is characterized in that, described power supply VCC voltage is greater than 1V.
3. laser driver according to claim 1, is characterized in that, described diode D1 is Schottky diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520220786.8U CN204858268U (en) | 2015-04-13 | 2015-04-13 | Laser -driven ware |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520220786.8U CN204858268U (en) | 2015-04-13 | 2015-04-13 | Laser -driven ware |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204858268U true CN204858268U (en) | 2015-12-09 |
Family
ID=54748787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520220786.8U Expired - Fee Related CN204858268U (en) | 2015-04-13 | 2015-04-13 | Laser -driven ware |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204858268U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106793185A (en) * | 2016-11-28 | 2017-05-31 | 林桂清 | A kind of heater of utilization ceramic material |
| CN113379701A (en) * | 2021-06-08 | 2021-09-10 | 江苏迪盛智能科技有限公司 | Fault processing method and device for closely-arranged laser driver and storage medium |
-
2015
- 2015-04-13 CN CN201520220786.8U patent/CN204858268U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106793185A (en) * | 2016-11-28 | 2017-05-31 | 林桂清 | A kind of heater of utilization ceramic material |
| CN113379701A (en) * | 2021-06-08 | 2021-09-10 | 江苏迪盛智能科技有限公司 | Fault processing method and device for closely-arranged laser driver and storage medium |
| CN113379701B (en) * | 2021-06-08 | 2023-09-26 | 江苏迪盛智能科技有限公司 | Fault processing method and device for closely-spaced laser driver and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204965320U (en) | Computer USB power supply circuit | |
| CN204858268U (en) | Laser -driven ware | |
| CN204145839U (en) | A kind of constant current driver circuit for LED | |
| CN204887585U (en) | Turn over and swash formula LED drive circuit | |
| CN204559975U (en) | A kind of stabilization protective circuit | |
| CN204887591U (en) | LED circuit | |
| CN204836117U (en) | Intelligence switch power | |
| CN205540558U (en) | DC power supply on -off controller | |
| CN204652748U (en) | A kind of LED drive circuit | |
| CN205039703U (en) | Intelligence step -down formula switching power supply | |
| CN204498405U (en) | Based on the LED drive system that bootstrapping controls | |
| CN204408679U (en) | A kind of light-operated lighting controller for mobile phone | |
| CN204168140U (en) | IGBT drive module, motor drive controller and power-driven system | |
| CN204795713U (en) | LED step -down voltage stabilizing circuit | |
| CN205142003U (en) | DC -DC converter | |
| CN206004961U (en) | A kind of Internet of Things light fixture constant-current driving control circuit | |
| CN204697016U (en) | A kind of driving pulse amplifying circuit | |
| CN204597774U (en) | A kind of negative voltage transition circuit | |
| CN205142000U (en) | Teaching inductive switch formula constant voltage power supply | |
| CN204425184U (en) | A kind of two-supply circuit | |
| CN205136744U (en) | Electron is tap from beginning | |
| CN206713147U (en) | A kind of sodium vapor lamp rectifier drive circuit | |
| CN204856274U (en) | Infrared LED drive circuit | |
| CN204652206U (en) | A kind of power-switching circuit | |
| CN205142004U (en) | DC -DC (direct current -direct current) converter |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151209 Termination date: 20160413 |