CN201898278U - Control circuit for laser power device - Google Patents
Control circuit for laser power device Download PDFInfo
- Publication number
- CN201898278U CN201898278U CN2010206531711U CN201020653171U CN201898278U CN 201898278 U CN201898278 U CN 201898278U CN 2010206531711 U CN2010206531711 U CN 2010206531711U CN 201020653171 U CN201020653171 U CN 201020653171U CN 201898278 U CN201898278 U CN 201898278U
- Authority
- CN
- China
- Prior art keywords
- laser power
- power devices
- laser
- triode
- control
- 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
Images
Landscapes
- Semiconductor Lasers (AREA)
Abstract
The utility model relates to a control circuit for a laser power device, which comprises a control unit, a laser power device, a control module for the laser power device, a laser emission unit and a monitoring unit for photoelectric switches. In the control circuit, the photoelectric switches are arranged at corresponding mounting positions of a laser emission plug-in unit to judge whether or not the mounting positions of the laser emission plug-in units are correct by checking whether or not optical channels of the photoelectric switches are shielded, judge results of the photoelectric switches are outputted to the control unit, the control unit outputs control signals to the laser power device and a control loop of a laser tube according to the judge results and a self-checking result of the control unit, so as to control the make-and-break of a luminescence loop power of the laser tube, thereby controlling the laser emission loop safely and reliably and further protecting safety of the laser emission plug-in unit and the operating personnel more reliably.
Description
Technical field
The utility model belongs to the Laser Power Devices technical field, is specifically related to a kind of Laser Power Devices control circuit.
Background technology
In high voltage rectification equipment and static reactive power compensation SVC, the application of photo thyristor more and more widely, safety and photo thyristor is triggered become an important topic reliably how.
Since to the triggering light source of photo thyristor for mostly being laser greatly, the luminous power of lasing fluorescence element output is bigger, if misoperation or system break down, just there is very high danger in the operator, therefore plug-in unit-light emission plug-in unit of directly exporting laser in the trigger equipment is had higher requirement.Domestic and international many producers are to the installation of Laser Power Devices; the guard method of taking mostly is the mechanical contact control mode greatly, when periphery protection equipment mounting condition satisfies job requirement, by the closure of mechanical contact; make the luminous power normal power supply of laser, thereby satisfy the luminous requirement of laser tube.But adopt the mode of mechanical contact to have following several drawback: there is mechanical mechanism in (1), repeatedly operation for a long time, and the mechanical mechanism failure rate is higher; (2) the contact contact reliability is low, occurs the situation of loose contact easily; (3) installation and maintenance inconvenience.
The utility model content
The purpose of this utility model provides a kind of Laser Power Devices control method, and a kind of control circuit of realizing this control method is provided simultaneously.
For achieving the above object, the technical scheme of the Laser Power Devices control circuit that the utility model provides is as follows: a kind of Laser Power Devices control circuit, be made up of control unit, Laser Power Devices control module, laser emission element and optoelectronic switch monitoring means: described photoswitc monitoring means comprises one group of optoelectronic switch that is used to monitor each light emission plug-in unit, each optoelectronic switch is used to be installed in each installation position of corresponding light emission plug-in unit, and the signal output part of photoswitc monitoring means is connected with the installation site detection signal input of control unit; The trigger impulse output of control unit is connected with the trigger impulse input of laser emission element; The status signal output of control unit is connected with the control end of Laser Power Devices control module, and described Laser Power Devices control module is serially connected with on the current supply circuit of laser emission element.
Described Laser Power Devices control module is a triode, and the base stage of triode is connected with the status signal output of control unit, and emitter is connected with the current supply circuit input of laser emission element.
Described Laser Power Devices control module comprises first triode, second triode and diode, the emitter of described first triode is connected with the current supply circuit input of Laser Power Devices, collector electrode is by current supply circuit input defeated be connected of diode with the Laser Power Devices transmitter unit, and the emitter of first triode and base stage also are connected to first resistance and first electric capacity; The base stage of first triode is connected with the collector electrode of second triode by second resistance, the base stage of second triode is connected with the status signal output of control unit, the base stage of second triode is connected with emitter by the 4th resistance, and its emitter is by current supply circuit input defeated be connected of the 5th resistance with the Laser Power Devices transmitter unit.
Described laser emission element is composed in series by the current-limiting resistance that joins in turn, laser tube and control element MOSFET.
The utility model adopts each installation position of light emission plug-in unit is provided with corresponding optoelectronic switch; whether correct by whether the be blocked installation site of judging light emission plug-in unit of the optical channel of checking optoelectronic switch; the judged result of optoelectronic switch outputs to control unit; control unit is according to the self-detection result of judged result and control unit; output a control signal to Laser Power Devices; the control loop of laser tube; thereby the break-make of the luminous ring current of control laser tube; reach the purpose in safe and reliable control Laser emission loop, and then reliable protection Laser emission plug-in unit and operating personnel's safety more.
Description of drawings
Fig. 1 is the schematic diagram of the utility model Laser Power Devices control circuit;
Fig. 2 is the schematic diagram of the utility model Laser Power Devices control module controlable electric current;
Fig. 3 is the control flow chart of the utility model Laser Power Devices control method.
Embodiment
Below in conjunction with specific embodiment the utility model is done further introduction.
Be illustrated in figure 1 as the schematic diagram of the utility model Laser Power Devices control circuit, as seen from the figure, this circuit is by control unit, Laser Power Devices, the Laser Power Devices control module, laser emission element and optoelectronic switch monitoring means are formed: the photoswitc monitoring means comprises the optoelectronic switch K1 that is used to monitor each light emission plug-in unit ... Kn, respectively by working power P1 ... Pn control, each optoelectronic switch is installed in each installation position of corresponding light emission plug-in unit, whether the installation position of mounting points that is used for each installation site of monitoring laser emission plug-in unit is correct, and the signal output part of photoswitc monitoring means is connected with the installation site detection signal input of control unit; The trigger impulse output of control unit is connected with the trigger impulse input of laser emission element; The status signal output of control unit is connected with the control end of Laser Power Devices control module, and described Laser Power Devices control module is serially connected with on the current supply circuit of laser emission element; Laser emission element is made up of the current-limiting resistance R that joins in turn, laser tube D and control element MOSFET, and laser tube D is connected with the drain electrode of control element MOSFET.
The Laser Power Devices control module of present embodiment adopts the working power of triode or controlable electric current control illuminating circuit laser tube, the break-make of control illuminating circuit power supply.Controlable electric current as shown in Figure 2, the emitter of positive-negative-positive triode V1 is connected with Laser Power Devices P2, emitter is connected with diode D1, be connected with resistance R 1 between the emitter of triode V1 and the base stage, C1 is in parallel with R1, the base stage of V1 is connected with the collector electrode of NPN type triode T, and the collector series connection of the base stage of V1 and triode T has resistance R 2, the base stage of triode T is connected with control unit, and be serially connected with resistance R 3, be connected with resistance R 4 between the base stage of T and the emitter, and the emitter of T is connected with the negative pole of diode D by resistance R 5.The effect of this controlable electric current is identical with triode.
As shown in Figure 3, the control principle and the process of the utility model Laser Power Devices control circuit are as follows: when the Laser emission plug-in unit is worked, optoelectronic switch monitor unit K1 ... Kn, monitor each test point that light emission plug-in unit is installed respectively, when the monitoring point of installing detects installing component and is not in place, the light of optoelectronic switch is not blocked, the optoelectronic switch conducting, the position signalling that control unit receives optoelectronic switch is 0, this moment, control unit blocked the output of Laser Power Devices control unit, made Laser Power Devices can not arrive laser tube; When the monitoring point of installing detects installing component and is in place, the light of optoelectronic switch is blocked, optoelectronic switch ends, and the position signalling that control unit receives optoelectronic switch is 1, when all position, monitoring point signals all satisfy condition, when possessing condition of work, control unit detects the self-test signal of self, when self-test signal just often, control unit triggers the Laser Power Devices control module, connect the working power of illuminating circuit laser tube, make Laser Power Devices can arrive laser tube.
The control method and the process of the utility model Laser Power Devices control circuit are as follows:
(1) in each installation position of light emission plug-in unit respectively correspondence one cover optoelectronic switch is set, the mounting points of each installation site of monitoring laser emission plug-in unit respectively;
Control unit is set, the signal output part of each photoswitc is connected with the installation site detection signal input of control unit;
Laser Power Devices control module and laser emission element are set, the trigger impulse output of control unit is connected with the trigger impulse input of laser emission element; The status signal output of control unit is connected with the control end of Laser Power Devices control module, and the Laser Power Devices control module is serially connected with on the current supply circuit of laser emission element;
Whether (2) detect each light emission plug-in unit by each cover optoelectronic switch is in place, if having any one optoelectronic switch to detect corresponding light emission plug-in unit is not in place, then control unit blocks the output of Laser Power Devices control module, makes Laser Power Devices can not arrive laser tube;
(3) if all optoelectronic switches detect each light emission plug-in unit all to be in place, control unit receives the position signalling of optoelectronic switch, and all test point position signallings all satisfy condition, and when possessing condition of work, control unit detects the self-test signal of self;
(4) self-test signal that detects self when control unit also just often, control unit triggers the Laser Power Devices control module, makes Laser Power Devices can arrive laser tube, and connects laser emission element according to the actual requirements, makes laser tube carry out work.
Claims (4)
1. Laser Power Devices control circuit, it is characterized in that: be made up of control unit, Laser Power Devices control module, laser emission element and optoelectronic switch monitoring means: described photoswitc monitoring means comprises one group of optoelectronic switch that is used to monitor each light emission plug-in unit, each optoelectronic switch is used to be installed in each installation position of corresponding light emission plug-in unit, and the signal output part of photoswitc monitoring means is connected with the installation site detection signal input of control unit; The trigger impulse output of control unit is connected with the trigger impulse input of laser emission element; The status signal output of control unit is connected with the control end of Laser Power Devices control module, and described Laser Power Devices control module is serially connected with on the current supply circuit of laser emission element.
2. Laser Power Devices control circuit according to claim 1, it is characterized in that: described Laser Power Devices control module is a triode, the base stage of triode is connected with the status signal output of control unit, and emitter is connected with the current supply circuit input of laser emission element.
3. Laser Power Devices control circuit according to claim 1, it is characterized in that: described Laser Power Devices control module comprises first triode, second triode and diode, the emitter of described first triode is connected with the current supply circuit input of Laser Power Devices, collector electrode is by current supply circuit input defeated be connected of diode with the Laser Power Devices transmitter unit, and the emitter of first triode and base stage also are connected to first resistance and first electric capacity; The base stage of first triode is connected with the collector electrode of second triode by second resistance, the base stage of second triode is connected with the status signal output of control unit, the base stage of second triode is connected with emitter by the 4th resistance, and its emitter is by current supply circuit input defeated be connected of the 5th resistance with the Laser Power Devices transmitter unit.
4. according to claim 2 or 3 described Laser Power Devices control circuits, it is characterized in that: described laser emission element is composed in series by the current-limiting resistance that joins in turn, laser tube and control element MOSFET.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206531711U CN201898278U (en) | 2010-12-10 | 2010-12-10 | Control circuit for laser power device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206531711U CN201898278U (en) | 2010-12-10 | 2010-12-10 | Control circuit for laser power device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201898278U true CN201898278U (en) | 2011-07-13 |
Family
ID=44256165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206531711U Expired - Fee Related CN201898278U (en) | 2010-12-10 | 2010-12-10 | Control circuit for laser power device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201898278U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021068212A1 (en) * | 2019-10-11 | 2021-04-15 | 深圳市大疆创新科技有限公司 | Light emitting device, distance measuring device and mobile platform |
-
2010
- 2010-12-10 CN CN2010206531711U patent/CN201898278U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021068212A1 (en) * | 2019-10-11 | 2021-04-15 | 深圳市大疆创新科技有限公司 | Light emitting device, distance measuring device and mobile platform |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103326324B (en) | A kind of IGBT module parallel protective circuit be applied in high-power inverter | |
| CN205787014U (en) | A kind of D.C. contactor main contacts testing circuit | |
| CN103794034A (en) | Full-line electric power facility fault and intrusion alarm system | |
| CN104133131A (en) | IGBT drive fault detection and diagnosis method | |
| CN100414796C (en) | Under-voltage isolating monitoring circuit | |
| CN106771758A (en) | The positioner and method of failure in cabinet control loop | |
| CN201898278U (en) | Control circuit for laser power device | |
| CN201708537U (en) | Straight-through protective circuit for bridge arm of converter | |
| CN203278204U (en) | IGBT module parallel-connection protection circuit applied to high-power inverter | |
| CN203513016U (en) | Power supply open-phase protection device of lift control cabinet | |
| CN205484714U (en) | Circuit is listened to killer switch state | |
| CN202372620U (en) | Detection circuit of circuit breaker | |
| CN202196988U (en) | Voice prompt device for protecting, observing and controlling screen cabinet of transformer substation | |
| CN102347601B (en) | Power protection circuit | |
| CN201699392U (en) | Electrical leakage protector for pressing machine | |
| CN211127198U (en) | Open-circuit follow current device for accumulator | |
| CN2905538Y (en) | Electric safety protection device for hybrid power electric vehicle | |
| CN104426145B (en) | Prevent reversed circuit and lamps and lanterns | |
| CN103279057B (en) | Analog acquisition passage protects circuit and analog collection system | |
| CN102288808A (en) | LED (light-emitting diode) over-current detection circuit and LED driving control circuit | |
| CN201946962U (en) | Driving protective circuit of IGBT (insulated gate bipolar translator) power switching tube bridge circuit | |
| CN201773144U (en) | Auto-disengagement detection device of overvoltage protector | |
| CN106329464B (en) | Breaker with fault distinguish instruction | |
| CN203537638U (en) | Safe light-emitting circuit | |
| CN216411374U (en) | Signal protection device resistant to high voltage breakdown |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20131128 Address after: No. 1298 Xuchang City, Henan province 461000 XJ Avenue Patentee after: Xuji Electric Co., Ltd. Address before: No. 1298 Xuchang City, Henan province 461000 XJ Avenue Patentee before: Xuji Group Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110713 Termination date: 20171210 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |