CN206292643U - A kind of switching regulator Constant Temperature Control of Laser Diode system - Google Patents
A kind of switching regulator Constant Temperature Control of Laser Diode system Download PDFInfo
- Publication number
- CN206292643U CN206292643U CN201621403077.4U CN201621403077U CN206292643U CN 206292643 U CN206292643 U CN 206292643U CN 201621403077 U CN201621403077 U CN 201621403077U CN 206292643 U CN206292643 U CN 206292643U
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- pin
- voltage comparator
- singlechip controller
- circuit
- power module
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Abstract
The utility model discloses a kind of switching regulator Constant Temperature Control of Laser Diode system, including laser, semiconductor chilling plate TEC, PWM drive circuit, data sampling circuit, the serial ports of RS 232, singlechip controller, power module, display screen, clock circuit, extended menory, watchdog circuit and keyboard；With high temperature resistant, performance and advantage using safety, low cost, small volume and long lifespan.
Description
Technical field
The utility model is related to semiconductor laser control technology field, and especially a kind of switching regulator semiconductor laser is permanent
Temperature control system.
Background technology
Laser is a kind of device that can launch laser, wherein most important most application value is semiconductor laser,
Semiconductor laser is ripe relatively early, the class laser that makes fast progress, and the range of application of semiconductor laser is covered entirely
Opto-electronics, it has also become the core technology semiconductor lasers of current photoelectron science laser ranging, laser radar,
Laser communication, laser analog weapon, laser alertness, laser guidance tracking, ignition and blasting, automatically control, the aspect such as detecting instrument
Obtain a wide range of applications, form wide market.Temperature characterisitic is one of principal character of semiconductor laser, not only fault
Value electric current and Output optical power are restricted by operating temperature, and temperature change also affect laser launch wavelength and
Its mode characteristic, therefore, the reliable and stable operation using good radiating and constant temperature system to ensureing semiconductor laser has
Significance.
The content of the invention
The purpose of this utility model is to provide a kind of switching regulator Constant Temperature Control of Laser Diode system.
To achieve these goals, technical solution of the present utility model is：A kind of switching regulator semiconductor laser
Thermostatic control system includes laser, semiconductor chilling plate TEC, PWM drive circuit, data sampling circuit, RS-232 serial ports, list
Piece machine controller, power module, display screen, clock circuit, extended menory, watchdog circuit and keyboard；Power module and list
Piece machine controller is electrically connected, and power module is electrically connected with PWM drive circuit, and power module is electric with data sampling
Road is electrically connected, and RS-232 serial ports is electrically connected with singlechip controller, and display screen is carried out with singlechip controller
Electrical connection, clock circuit is electrically connected with singlechip controller, and extended menory is carried out electrically with singlechip controller
Connection, watchdog circuit is electrically connected with singlechip controller, and keyboard is electrically connected with singlechip controller, monolithic
Machine controller is electrically connected with PWM drive circuit, and singlechip controller is also electrically connected with data sampling circuit,
PWM drive circuit is electrically connected with semiconductor chilling plate TEC, and semiconductor chilling plate TEC carries out electricity with data sampling circuit
Gas is connected, and laser is arranged on semiconductor chilling plate TEC.
PWM drive circuit includes resistance R1, resistance R2, adjustable resistance RP1, adjustable resistance RP2, voltage comparator U1, electricity
Pressure comparator U2, electric capacity C1, electric capacity C2, NPN type Darlington transistor Q1, positive-negative-positive Darlington transistor Q2；The collection of NPN type Darlington transistor Q1
Another termination power module+5V output ends of electrode connecting resistance R1, resistance R1, the emitter stage of NPN type Darlington transistor Q1 connects positive-negative-positive
The emitter stage of Darlington transistor Q2, the emitter stage of NPN type Darlington transistor Q1 connects 1 pin for also meeting semiconductor chilling plate TEC, semiconductor system
2 pin of cold TEC connect power supply ground, another termination power mould of colelctor electrode the connecting resistance R2, resistance R2 of positive-negative-positive Darlington transistor Q2
Block -5V output ends, the base stage of NPN type Darlington transistor Q1 connects 1 pin of voltage comparator U1, and the base stage of positive-negative-positive Darlington transistor Q2 connects
1 pin of voltage comparator U2,8 pin of voltage comparator U2 meet adjustable resistance RP2, the adjustable termination voltage ratio of adjustable resistance RP2
2 pin compared with device U2,1 pin of voltage comparator U2 is connected by electric capacity C1 with 3 pin of voltage comparator U2, voltage comparator U2
8 pin connect power module+5V output ends, 4 pin of voltage comparator U2 connect power module -5V output ends, singlechip controller U2
3 pin also connect the P3.2 output ends of singlechip controller, the base stage of NPN type Darlington transistor Q1 connects 1 pin of voltage comparator U1, electricity
8 pin of pressure comparator U1 meet adjustable resistance RP1,2 pin of the adjustable termination voltage comparator U1 of adjustable resistance RP1, voltage ratio compared with
1 pin of device U1 is connected by electric capacity C2 with 3 pin of voltage comparator U1, and it is defeated that 8 pin of voltage comparator U1 meet power module+5V
Go out end, 4 pin of voltage comparator U1 connect power module -5V output ends, and 3 pin of singlechip controller U1 also connect singlechip controller
P3.1 output ends.
Further, described power module is to provide ﹢ 5V constant-current dcs respectively using model REF200 power supply chips
Electricity and -5V constant-current dcs electricity, and using the power supply chip output+3.3V direct currents of model ASM117；
Described data sampling circuit uses the platinum resistance temperature sensor and its peripheral circuit of model PT1000；
Described RS-232 serial ports uses the interface chip and its peripheral circuit of model ADM101E；
Described singlechip controller uses the single-chip microcomputer and its peripheral circuit of model AT89C52；
Described display screen uses the LCDs of model CYW-SMART-TFT7.0；
Described clock circuit uses the clock chip and its peripheral circuit of model AT8373；
Described extended menory uses the memory chip and its peripheral circuit of model SRAM6116；
The watchdog chip and its peripheral circuit of described watchdog circuit model MAX813；
Described voltage comparator U1 and voltage comparator U2 are using the voltage comparator of model AD620.
Operation principle of the present utility model is：When using, data sampling circuit enters trip temperature and adopts to semiconductor chilling plate TEC
Sample, and temperature sampling data are conveyed to singlechip controller, singlechip controller is compared sample temperature with temperature is set
Compared with using its difference as input variable, using the control algolithm calculating corresponding control variables of generation of neutral net, control variables
Corresponding driving current is produced via PWM drive circuit, semiconductor chilling plate TEC is further driven, to installed in semiconductor system
Laser on cold TEC is heated or freezed, meanwhile, the temperature of laser is further through platinum resistance temperature sensor PT1000
Singlechip controller is fed back to by data sampling circuit, singlechip controller adjusts output current by PWM drive circuit again
Size, until the temperature stabilization of laser is in the temperature spot for setting.
The beneficial effects of the utility model are：Switching regulator Constant Temperature Control of Laser Diode system of the present utility model has
High temperature resistant, performance and advantage using safety, low cost, small volume and long lifespan.
Brief description of the drawings
The utility model is further described with reference to the accompanying drawings and detailed description.
Accompanying drawing 1 is structural representation of the present utility model；
Accompanying drawing 2 is PWM drive circuit figure of the present utility model.
Specific embodiment
As shown in accompanying drawing 1, a kind of switching regulator Constant Temperature Control of Laser Diode system includes laser, semiconductor chilling plate
TEC, PWM drive circuit, data sampling circuit, RS-232 serial ports, singlechip controller, power module, display screen, clock electricity
Road, extended menory, watchdog circuit and keyboard；Power module is electrically connected with singlechip controller, power module with
PWM drive circuit is electrically connected, and power module is electrically connected with data sampling circuit, RS-232 serial ports and single-chip microcomputer
Controller is electrically connected, and display screen is electrically connected with singlechip controller, and clock circuit enters with singlechip controller
Row electrical connection, extended menory is electrically connected with singlechip controller, and watchdog circuit is carried out with singlechip controller
Electrical connection, keyboard is electrically connected with singlechip controller, and singlechip controller is electrically connected with PWM drive circuit
Connect, singlechip controller is also electrically connected with data sampling circuit, PWM drive circuit is carried out with semiconductor chilling plate TEC
Electrical connection, semiconductor chilling plate TEC is electrically connected with data sampling circuit, and laser is arranged on semiconductor chilling plate
On TEC.
As shown in accompanying drawing 2, PWM drive circuit includes resistance R1, resistance R2, adjustable resistance RP1, adjustable resistance RP2, voltage
Comparator U1, voltage comparator U2, electric capacity C1, electric capacity C2, NPN type Darlington transistor Q1, positive-negative-positive Darlington transistor Q2；NPN type reaches woods
Another termination power module+5V output ends of colelctor electrode the connecting resistance R1, resistance R1 of pipe Q1, the hair of NPN type Darlington transistor Q1
Emitter-base bandgap grading connects the emitter stage of positive-negative-positive Darlington transistor Q2, and the emitter stage of NPN type Darlington transistor Q1 connects and also connects the 1 of semiconductor chilling plate TEC
Pin, 2 pin of semiconductor chilling plate TEC connect power supply ground, the colelctor electrode connecting resistance R2 of positive-negative-positive Darlington transistor Q2, and resistance R2's is another
Termination power module -5V output ends, the base stage of NPN type Darlington transistor Q1 connects 1 pin of voltage comparator U1, positive-negative-positive Darlington transistor
The base stage of Q2 connects 1 pin of voltage comparator U2, and 8 pin of voltage comparator U2 meet adjustable resistance RP2, and adjustable resistance RP2's is adjustable
2 pin of termination voltage comparator U2,1 pin of voltage comparator U2 is connected by electric capacity C1 with 3 pin of voltage comparator U2, electricity
8 pin of pressure comparator U2 connect power module+5V output ends, and 4 pin of voltage comparator U2 connect power module -5V output ends, monolithic
3 pin of machine controller U2 also connect the P3.2 output ends of singlechip controller, and the base stage of NPN type Darlington transistor Q1 connects voltage comparator
1 pin of U1,8 pin of voltage comparator U1 meet adjustable resistance RP1, the 2 of the adjustable termination voltage comparator U1 of adjustable resistance RP1
Pin, 1 pin of voltage comparator U1 is connected by electric capacity C2 with 3 pin of voltage comparator U1, and 8 pin of voltage comparator U1 connect electricity
Source module+5V output ends, 4 pin of voltage comparator U1 connect power module -5V output ends, and 3 pin of singlechip controller U1 also connect
The P3.1 output ends of singlechip controller.
Wherein, described power module be using model REF200 power supply chips provide respectively+5V constant-current dcs electricity and-
5V constant-current dcs electricity, and using the power supply chip output+3.3V direct currents of model ASM117；
Described voltage comparator U1 and voltage comparator U2 are using the voltage comparator of model AD620；
Described RS-232 serial ports uses the interface chip and its peripheral circuit of model ADM101E；
Described singlechip controller uses the single-chip microcomputer and its peripheral circuit of model AT89C52；
Described display screen uses the LCDs of model CYW-SMART-TFT7.0；
Described clock circuit uses the clock chip and its peripheral circuit of model AT8373；
Described extended menory uses the memory chip and its peripheral circuit of model SRAM6116；
The watchdog chip and its peripheral circuit of described watchdog circuit model MAX813.
When using, data sampling circuit carries out temperature sampling to semiconductor chilling plate TEC, and temperature sampling data are conveyed
To singlechip controller, with temperature is set be compared sample temperature by singlechip controller, using its difference as input variable,
Calculated using the control algolithm of neutral net and produce corresponding control variables, control variables produces corresponding via PWM drive circuit
Driving current, further drive semiconductor chilling plate TEC, the laser on semiconductor chilling plate TEC is added
Heat or refrigeration, meanwhile, the temperature of laser feeds back to list further through platinum resistance temperature sensor PT1000 by data sampling circuit
Piece machine controller, singlechip controller adjusts the size of output current by PWM drive circuit again, until the temperature of laser is steady
It is scheduled on the temperature spot of setting.
The above, implementation method is only that preferred embodiment of the present utility model is described, not to this reality
It is defined with new scope, on the premise of the spirit for not departing from the utility model technology, this area engineers and technicians
The various modifications made to the technical solution of the utility model and improvement, all should fall into claims of the present utility model and determine
Protection domain in.
Claims (2)
1. a kind of switching regulator Constant Temperature Control of Laser Diode system, it is characterized in that：A kind of described switching regulator semiconductor laser
Device thermostatic control system include laser, semiconductor chilling plate TEC, PWM drive circuit, data sampling circuit, RS-232 serial ports,
Singlechip controller, power module, display screen, clock circuit, extended menory, watchdog circuit and keyboard；Power module with
Singlechip controller is electrically connected, and power module is electrically connected with PWM drive circuit, power module and data sampling
Circuit is electrically connected, and RS-232 serial ports is electrically connected with singlechip controller, and display screen enters with singlechip controller
Row electrical connection, clock circuit is electrically connected with singlechip controller, and extended menory carries out electricity with singlechip controller
Gas is connected, and watchdog circuit is electrically connected with singlechip controller, and keyboard is electrically connected with singlechip controller, single
Piece machine controller is electrically connected with PWM drive circuit, and singlechip controller is also electrically connected with data sampling circuit,
PWM drive circuit is electrically connected with semiconductor chilling plate TEC, and semiconductor chilling plate TEC carries out electricity with data sampling circuit
Gas is connected, and laser is arranged on semiconductor chilling plate TEC；PWM drive circuit includes resistance R1, resistance R2, adjustable resistance
RP1, adjustable resistance RP2, voltage comparator U1, voltage comparator U2, electric capacity C1, electric capacity C2, NPN type Darlington transistor Q1, positive-negative-positive
Darlington transistor Q2；Another termination power module+5V output ends of colelctor electrode the connecting resistance R1, resistance R1 of NPN type Darlington transistor Q1,
The emitter stage of NPN type Darlington transistor Q1 connects the emitter stage of positive-negative-positive Darlington transistor Q2, and the emitter stage of NPN type Darlington transistor Q1 connects also
1 pin of semiconductor chilling plate TEC is connect, 2 pin of semiconductor chilling plate TEC connect power supply ground, and the colelctor electrode of positive-negative-positive Darlington transistor Q2 connects
Another termination power module -5V output ends of resistance R2, resistance R2, the base stage of NPN type Darlington transistor Q1 meets voltage comparator U1
1 pin, the base stage of positive-negative-positive Darlington transistor Q2 connects 1 pin of voltage comparator U2, and 8 pin of voltage comparator U2 connect adjustable resistance
2 pin of the adjustable termination voltage comparator U2 of RP2, adjustable resistance RP2,1 pin of voltage comparator U2 passes through electric capacity C1 and voltage
3 pin of comparator U2 are connected, and 8 pin of voltage comparator U2 connect power module+5V output ends, and 4 pin of voltage comparator U2 connect
Power module -5V output ends, 3 pin of singlechip controller U2 also connect the P3.2 output ends of singlechip controller, NPN type Darlington
The base stage of pipe Q1 connects 1 pin of voltage comparator U1, and 8 pin of voltage comparator U1 meet adjustable resistance RP1, and adjustable resistance RP1's can
2 pin of termination voltage comparator U1,1 pin of voltage comparator U1 are adjusted to be connected with 3 pin of voltage comparator U1 by electric capacity C2,
8 pin of voltage comparator U1 connect power module+5V output ends, and 4 pin of voltage comparator U1 connect power module -5V output ends, single
3 pin of piece machine controller U1 also connect the P3.1 output ends of singlechip controller.
2. a kind of switching regulator Constant Temperature Control of Laser Diode system according to claim 1, it is characterized in that：Described electricity
Source module is to provide+5V constant-current dcs electricity and -5V constant-current dcs electricity respectively using model REF200 power supply chips, and uses type
Number for ASM117 power supply chip output+3.3V direct currents；Described voltage comparator U1 and voltage comparator U2 use type
Number for AD620 voltage comparator；Described RS-232 serial ports is electric using the interface chip of model ADM101E and its periphery
Road；Described singlechip controller uses the single-chip microcomputer and its peripheral circuit of model AT89C52；Described display screen is used
The LCDs of model CYW-SMART-TFT7.0；Described clock circuit using model AT8373 clock chip and
Its peripheral circuit；Described extended menory uses the memory chip and its peripheral circuit of model SRAM6116；Described
The watchdog chip and its peripheral circuit of watchdog circuit model MAX813.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621403077.4U CN206292643U (en) | 2016-12-21 | 2016-12-21 | A kind of switching regulator Constant Temperature Control of Laser Diode system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621403077.4U CN206292643U (en) | 2016-12-21 | 2016-12-21 | A kind of switching regulator Constant Temperature Control of Laser Diode system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206292643U true CN206292643U (en) | 2017-06-30 |
Family
ID=59105212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621403077.4U Expired - Fee Related CN206292643U (en) | 2016-12-21 | 2016-12-21 | A kind of switching regulator Constant Temperature Control of Laser Diode system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206292643U (en) |
-
2016
- 2016-12-21 CN CN201621403077.4U patent/CN206292643U/en not_active Expired - Fee Related
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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: 20170630 Termination date: 20171221 |