Output control system of semiconductor laser

Abstract

The utility model provides an output control system of a semiconductor laser. The output control system comprises a power supply circuit, a processor, a key-in circuit and an on-off control circuit, compared with the prior art, the power supply circuit sends a power supply signal to the processor, the on-off control circuit and the key-in circuit, the key-in circuit receives and sends an adjusting signal to the processor, the processor sends a flashing signal to the on-off control circuit according to the adjusting signal, and the flashing signal comprises flashing time and interval time. The on-off control circuit sends a brightness and darkness control signal to the semiconductor laser through the flashing signal, the laser illumination time and the single laser output interval of the semiconductor laser are adjusted through the brightness and darkness control signal, and the control mode is simple and reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of semiconductor laser control, in particular to an output control system of a semiconductor laser. Background Art

[0002] Semiconductor lasers have made great progress in the fields of communications, material processing and manufacturing, and medical treatment due to their compact structure, good beam quality, long life, and stable performance. In particular, as key optoelectronic devices in optical coherence tomography (OCT), the performance of semiconductor lasers is directly related to core technical indicators such as the imaging resolution and detectable cross-sectional depth of the OCT system.

[0003] Traditional semiconductor lasers can only control the brightness of their lasers through switching devices, but are unable to adjust the laser illumination time or the interval between single laser outputs. Utility Model Content

[0004] The utility model provides an output control system for a semiconductor laser, the purpose of which is to adjust the laser illumination time and the single laser output interval.

[0005] In order to achieve the above object, the utility model provides an output control system of a semiconductor laser, comprising:

[0006] Power supply circuit, processor, input circuit, on-off control circuit;

[0007] The input end of the power circuit is connected to the mains end, and the output end of the power circuit is respectively connected to the power end of the processor, the power end of the on-off control circuit, and the power end of the key-in circuit;

[0008] The output terminal of the input circuit is connected to the input terminal of the processor;

[0009] The output end of the processor is connected to the input end of the on-off control circuit;

[0010] The output end of the on-off control circuit is connected to the control end of the semiconductor laser;

[0011] The power supply circuit sends a power supply signal to the processor, the on-off control circuit, and the typing circuit. The typing circuit sends an adjustment signal to the processor. The processor sends a flashing signal to the on-off control circuit according to the adjustment signal. The flashing signal includes a flashing time signal and an interval time signal. The on-off control circuit sends a bright and dark control signal to the semiconductor laser through the flashing signal. The bright and dark control signal is used to adjust the laser illumination time and the single laser output interval of the semiconductor laser.

[0012] More specifically, the power circuit includes:

[0013] Connector, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a sixth capacitor, and a voltage stabilizing chip;

[0014] The first pin of the connector is respectively connected to the mains terminal, the first pin of the voltage stabilizing chip, the third pin of the voltage stabilizing chip, and the first end of the first capacitor, and the second end of the first capacitor is grounded;

[0015] The fifth pin of the connector is connected to the sixth pin of the connector and the seventh pin of the connector and is grounded;

[0016] The fifth pin of the voltage stabilizing chip is respectively connected to the first end of the second capacitor, the first end of the third capacitor, the first end of the fourth capacitor, the first end of the fifth capacitor, the first end of the sixth capacitor, the power supply end of the processor, the power supply end of the on-off control circuit, and the power supply end of the typing circuit, and the second end of the second capacitor, the second end of the third capacitor, the second end of the fourth capacitor, the second end of the fifth capacitor, and the second end of the sixth capacitor are all grounded.

[0017] More specifically, the on-off control circuit includes:

[0018] Photoelectric coupler, first MOS tube, first resistor;

[0019] The first pin of the photocoupler is connected to the output terminal of the processor;

[0020] The second pin of the photoelectric coupler is respectively connected to the third pin of the photoelectric coupler and the source of the first MOS tube and is grounded;

[0021] The fourth pin of the photocoupler is connected to the gate of the first MOS tube;

[0022] The drain of the first MOS tube is connected to the control end of the semiconductor laser and the first end of the first resistor respectively;

[0023] The second end of the first resistor is connected to the fifth pin of the voltage stabilizing chip and the control end of the semiconductor laser respectively.

[0024] More specifically, the processor includes:

[0025] Burning interface, processing chip, first light emitting diode, second light emitting diode, second resistor, third resistor, fourth resistor, first crystal oscillator, seventh capacitor, eighth capacitor, second crystal oscillator, ninth capacitor, tenth capacitor, eighth button, eleventh capacitor, fifth resistor, sixth resistor, first interface, second interface, twelfth capacitor, thirteenth capacitor;

[0026] The twenty-fourth pin of the processing chip, the thirty-sixth pin of the processing chip, the forty-eighth pin of the processing chip, the anode of the first light-emitting diode, the anode of the second light-emitting diode, and the power supply end of the burning interface are all connected to the fifth pin of the voltage stabilizing chip;

[0027] The cathode of the first light emitting diode is connected to the first end of the second resistor, and the second end of the second resistor is grounded;

[0028] The cathode of the second light emitting diode is connected to the first end of the third resistor, and the second end of the third resistor is connected to the second pin of the processing chip;

[0029] The second pin of the burning interface is connected to the 34th pin of the processing chip, and the third pin of the burning interface is connected to the 37th pin of the processing chip;

[0030] The first end of the fourth resistor is respectively connected to the first end of the first crystal oscillator, the first end of the seventh capacitor, and the fifth pin of the processing chip, the second end of the seventh capacitor is connected to the second end of the eighth capacitor and is grounded, and the first end of the eighth capacitor is respectively connected to the second end of the first crystal oscillator, the second end of the fourth resistor, and the sixth pin of the processing chip;

[0031] The first end of the second crystal oscillator is respectively connected to the first end of the ninth capacitor and the third pin of the processing chip, the second end of the ninth capacitor is connected to the second end of the tenth capacitor and is grounded, and the first end of the tenth capacitor is respectively connected to the second end of the second crystal oscillator and the fourth pin of the processing chip;

[0032] The first end of the eighth button is connected to the first end of the eleventh capacitor and is grounded, and the second end of the eighth button is connected to the second end of the eleventh capacitor and the seventh pin of the processing chip respectively;

[0033] The first pin of the first interface is connected to the first pin of the second interface and is grounded;

[0034] The second pin of the first interface is connected to the first end of the fifth resistor, and the second end of the fifth resistor is connected to the twentieth pin of the processing chip;

[0035] The third pin of the first interface is connected to the third pin of the second interface and connected to the fifth pin of the voltage regulator chip;

[0036] The second pin of the second interface is connected to the first end of the sixth resistor, and the second end of the sixth resistor is connected to the 44th pin of the processing chip;

[0037] The tenth pin of the processing chip is connected to the first pin of the photocoupler;

[0038] The twelfth pin of the processing chip, the fourteenth pin of the processing chip, the sixteenth pin of the processing chip, the nineteenth pin of the processing chip, the twenty-ninth pin of the processing chip, the thirtieth pin of the processing chip, the thirty-first pin of the processing chip, the forty-first pin of the processing chip, and the fifteenth pin of the processing chip are all connected to the output end of the key-in circuit;

[0039] The eighth pin of the processing chip is respectively connected to the second end of the twelfth capacitor and the second end of the thirteenth capacitor and is grounded;

[0040] The ninth pin of the processing chip is respectively connected to the first end of the twelfth capacitor, the first end of the thirteenth capacitor, and the fifth pin of the voltage stabilizing chip.

[0041] Further, the key-in circuit is a key-in subcircuit composed of a first key, a second key, a third key, a fourth key, a fifth key, a sixth key, and a seventh key;

[0042] The first end of the first button is connected to the fourteenth pin of the processing chip, the first end of the second button is connected to the sixteenth pin of the processing chip, the first end of the third button is connected to the nineteenth pin of the processing chip, the first end of the fourth button is connected to the twelfth pin of the processing chip, the first end of the fifth button is connected to the thirtieth pin of the processing chip, the first end of the sixth button is connected to the forty-first pin of the processing chip, and the first end of the seventh button is connected to the fifteenth pin of the processing chip;

[0043] The second end of the first button is respectively connected to the second end of the second button, the second end of the third button, the second end of the fourth button, the second end of the fifth button, the second end of the sixth button, and the second end of the seventh button and is grounded.

[0044] Further, the keying circuit is a knob;

[0045] The first end of the knob is connected to the thirty-first pin of the processing chip, the second end of the knob is connected to the twenty-ninth pin of the processing chip, and the fourth end of the knob is connected to the fifth pin of the voltage regulator chip.

[0046] Further, it also includes display screen;

[0047] The first end of the display screen is connected to the 46th pin of the processing chip;

[0048] The second end of the display screen is connected to the 45th pin of the processing chip;

[0049] The third terminal of the display screen is connected to the fifth pin of the voltage regulator chip;

[0050] The fourth terminal of the display is grounded.

[0051] To be more specific, the model of the processing chip is STM32F103C8T6.

[0052] Specifically, the processing chip is connected to a power supply circuit, a input circuit, an on / off control circuit, and a display screen through pin header lead pins.

[0053] The above solution of the utility model has the following beneficial effects:

[0054] The output control system provided by the utility model comprises a power supply circuit, a processor, a keying circuit and an on-off control circuit. Compared with the prior art, the utility model sends a power supply signal to the processor, the on-off control circuit and the keying circuit through the power supply circuit, receives and sends an adjustment signal to the processor through the keying circuit, the processor sends a flashing signal to the on-off control circuit according to the adjustment signal, the flashing signal comprises a flashing time signal and an interval time signal, the on-off control circuit sends a bright and dark control signal to the semiconductor laser through the flashing signal, and the laser illumination time and the single laser output interval of the semiconductor laser are adjusted through the bright and dark control signal, and the control method is simple and reliable.

[0055] Other beneficial effects of the present invention will be described in detail in the subsequent specific implementation sections. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] Figure 1 It is a principle block diagram of an embodiment of the utility model;

[0057] Figure 2 The schematic diagram of the power supply circuit in the embodiment of the utility model;

[0058] Figure 3 This is a circuit schematic diagram of an on-off control circuit in an embodiment of the utility model;

[0059] Figure 4 It is a schematic diagram of the peripheral circuit of the processor in the embodiment of the utility model;

[0060] Figure 5 The diagram is a circuit diagram of a key-in circuit in an embodiment of the present utility model. DETAILED DESCRIPTION

[0061] In order to make the technical problems, technical solutions and advantages to be solved by the utility model clearer, the following will be described in detail with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of them. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0062] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. In addition, the technical features involved in the different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0063] like Figure 1 As shown, an embodiment of the utility model provides an output control system of a semiconductor laser, comprising:

[0064] Power supply circuit, processor, input circuit, on-off control circuit;

[0065] The input end of the power circuit is connected to the mains end, and the output end of the power circuit is respectively connected to the power end of the processor, the power end of the on-off control circuit, and the power end of the key-in circuit;

[0066] The output terminal of the input circuit is connected to the input terminal of the processor;

[0067] The output end of the processor is connected to the input end of the on-off control circuit;

[0068] The output end of the on-off control circuit is connected to the control end of the semiconductor laser.

[0069] The working principle of the embodiment of the utility model is as follows:

[0070] In the embodiment of the utility model, a power supply circuit sends a power supply signal to a processor, an on-off control circuit, and a keying circuit, and the keying circuit sends an adjustment signal to the processor. The processor sends a flashing signal to the on-off control circuit according to the adjustment signal. The flashing signal includes a flashing time signal and an interval time signal. When the adjustment signal on-off control circuit sends a brightness control signal to the semiconductor laser through the flashing signal, the laser illumination time and the single laser output interval of the semiconductor laser are adjusted through the brightness control signal; when the adjustment signal is a signal for controlling the semiconductor laser to be always on, the flashing time signal in the flashing signal is a high level, the interval time signal is a low level, and the brightness control signal is a high level. The high level is output to adjust the laser illumination time and the single laser output interval to be consistent with the adjustment signal; when the adjustment signal is a signal for controlling the flashing of the semiconductor laser and the number of flashes, the flashing time signal in the flashing signal is a high level, the interval time signal is a high level, and the brightness control signal jumps between high and low levels. The time interval of the brightness control signal jumping from a high level to a low level or from a low level to a high level is the single laser output interval of the semiconductor laser, and the duration of the high level is the laser illumination time.

[0071] It should be noted that in the embodiment of the utility model, a mapping table of adjustment signals and flashing signals is stored in the processor. The processor searches the mapping table for the correspondence between the input adjustment signal and the flashing signal and outputs the corresponding flashing signal to the on-off control circuit. This is a function possessed by the conventional processor itself. The embodiment of the utility model does not involve improvements to the software algorithm part in the processor.

[0072] Most preferably, Figure 2 As shown, the power supply circuit includes:

[0073] Connector, first capacitor C1, second capacitor C2, third capacitor C3, fourth capacitor C4, fifth capacitor C5, sixth capacitor C6, voltage stabilizing chip;

[0074] The first pin of the connector is respectively connected to the mains terminal, the first pin of the voltage stabilizing chip, the third pin of the voltage stabilizing chip, and the first end of the first capacitor C1, and the second end of the first capacitor C1 is grounded;

[0075] The fifth pin of the connector is connected to the sixth pin of the connector and the seventh pin of the connector and is grounded;

[0076] The fifth pin of the voltage stabilizing chip is respectively connected to the first end of the second capacitor C2, the first end of the third capacitor C3, the first end of the fourth capacitor C4, the first end of the fifth capacitor C5, the first end of the sixth capacitor C6, the power supply end of the processor, the power supply end of the on-off control circuit, and the power supply end of the typing circuit, and the second end of the second capacitor C2, the second end of the third capacitor C3, the second end of the fourth capacitor C4, the second end of the fifth capacitor C5, and the second end of the sixth capacitor C6 are all grounded.

[0077] In an embodiment of the utility model, the connector is a USB connector with model MicroXNH, a 5V power supply is connected from the AC power terminal through the first pin of the connector, and a 3.3V power supply is output to the processor, the on-off control circuit, and the typing circuit through the fifth pin of the voltage regulator chip, wherein the model of the voltage regulator chip is ME6211C33M5G-N.

[0078] Most preferably, Figure 3 As shown, the on-off control circuit includes:

[0079] Photocoupler OP1, first MOS tube M1, first resistor R1;

[0080] A first pin of the photocoupler OP1 is connected to an output terminal of the processor;

[0081] The second pin of the photocoupler OP1 is respectively connected to the third pin of the photocoupler OP1 and the source of the first MOS tube M1 and is grounded;

[0082] The fourth pin of the photocoupler OP1 is connected to the gate of the first MOS tube M1;

[0083] The drain of the first MOS tube M1 is connected to the control end of the semiconductor laser and the first end of the first resistor R1 respectively;

[0084] The second end of the first resistor R1 is connected to the fifth pin of the voltage stabilizing chip and the control end of the semiconductor laser respectively.

[0085] In the embodiment of the utility model, the model of the photoelectric coupler OP1 is CYTLP521-1, and the flashing signal is received through the first pin of the photoelectric coupler OP1, and the bright and dark control signal is output through the drain of the first MOS tube M1. When the flashing signal is at a high level, the first MOS tube M1 is turned on and sends the bright and dark control signal to the semiconductor laser. When the flashing signal is at a low level, the first MOS tube M1 is turned off.

[0086] It should be noted that, in the embodiment of the utility model, in order to prevent the semiconductor laser from being in a floating voltage input state, a first resistor R1 is connected between the semiconductor laser and the drain of the first MOS tube M1, and the power supply VCC is connected from the fifth pin of the voltage regulator chip in the power supply circuit through the second end of the first resistor R1.

[0087] Most preferably, the processor comprises:

[0088] Burning interface H3, processing chip, first light emitting diode LED1, second light emitting diode LED2, second resistor R2, third resistor R3, fourth resistor R4, first crystal oscillator X1, seventh capacitor C7, eighth capacitor C8, second crystal oscillator X2, ninth capacitor C9, tenth capacitor C10, eighth button S8, eleventh capacitor C11, fifth resistor R5, sixth resistor R6, first interface H1, second interface H2, twelfth capacitor C12, thirteenth capacitor C13;

[0089] The 24th pin of the processing chip, the 36th pin of the processing chip, the 48th pin of the processing chip, the anode of the first light-emitting diode LED1, the anode of the second light-emitting diode LED2, and the power supply end of the burning interface H3 are all connected to the 5th pin of the voltage stabilizing chip;

[0090] The cathode of the first light emitting diode LED1 is connected to the first end of the second resistor R2, and the second end of the second resistor R2 is grounded;

[0091] The cathode of the second light emitting diode LED2 is connected to the first end of the third resistor R3, and the second end of the third resistor R3 is connected to the second pin of the processing chip;

[0092] The second pin of the burning interface H3 is connected to the 34th pin of the processing chip, and the third pin of the burning interface H3 is connected to the 37th pin of the processing chip;

[0093] The first end of the fourth resistor R4 is respectively connected to the first end of the first crystal oscillator X1, the first end of the seventh capacitor C7, and the fifth pin of the processing chip, the second end of the seventh capacitor C7 is connected to the second end of the eighth capacitor C8 and is grounded, and the first end of the eighth capacitor C8 is respectively connected to the second end of the first crystal oscillator X1, the second end of the fourth resistor R4, and the sixth pin of the processing chip;

[0094] The first end of the second crystal oscillator X2 is respectively connected to the first end of the ninth capacitor C9 and the third pin of the processing chip, the second end of the ninth capacitor C9 is connected to the second end of the tenth capacitor C10 and is grounded, and the first end of the tenth capacitor C10 is respectively connected to the second end of the second crystal oscillator X2 and the fourth pin of the processing chip;

[0095] A first end of the eighth button S8 is connected to a first end of the eleventh capacitor C11 and is grounded, and a second end of the eighth button S8 is connected to a second end of the eleventh capacitor C11 and a seventh pin of the processing chip respectively;

[0096] A first pin of the first interface H1 is connected to a first pin of the second interface H2 and is grounded;

[0097] The second pin of the first interface H1 is connected to the first end of the fifth resistor R5, and the second end of the fifth resistor R5 is connected to the twentieth pin of the processing chip;

[0098] The third pin of the first interface H1 is connected to the third pin of the second interface H2 and connected to the fifth pin of the voltage regulator chip;

[0099] The second pin of the second interface H2 is connected to the first end of the sixth resistor R6, and the second end of the sixth resistor R6 is connected to the 44th pin of the processing chip;

[0100] The tenth pin of the processing chip is connected to the first pin of the photocoupler OP1;

[0101] The twelfth pin of the processing chip, the fourteenth pin of the processing chip, the sixteenth pin of the processing chip, the nineteenth pin of the processing chip, the twenty-ninth pin of the processing chip, the thirtieth pin of the processing chip, the thirty-first pin of the processing chip, the forty-first pin of the processing chip, and the fifteenth pin of the processing chip are all connected to the output end of the key-in circuit;

[0102] The eighth pin of the processing chip is respectively connected to the second end of the twelfth capacitor C12 and the second end of the thirteenth capacitor C13 and is grounded;

[0103] The ninth pin of the processing chip is respectively connected to the first end of the twelfth capacitor C12, the first end of the thirteenth capacitor C13, and the fifth pin of the voltage stabilizing chip.

[0104] In the embodiment of the utility model, the twelfth capacitor C12 and the thirteenth capacitor C13 are peripheral devices of the processing chip;

[0105] like Figure 4 As shown, the first light-emitting diode LED1, the second light-emitting diode LED2, the second resistor R2, and the third resistor R3 constitute an LED indication circuit for displaying the status of the processor; the fourth resistor R4, the first crystal oscillator X1, the seventh capacitor C7, and the eighth capacitor C8 constitute a first crystal oscillator circuit; the second crystal oscillator X2, the ninth capacitor C9, and the tenth capacitor C10 constitute a second crystal oscillator circuit; the first crystal oscillator circuit and the second crystal oscillator circuit are used to process chip oscillation; the eighth button S8, the eleventh capacitor C11, the fifth resistor R5, the sixth resistor R6, the first interface H1, and the second interface H2 constitute a reset circuit for controlling the reset of the processor.

[0106] Most preferably, Figure 5 As shown, the key-in circuit is a key-in sub-circuit composed of a first key S1, a second key S2, a third key S3, a fourth key S4, a fifth key S5, a sixth key S6, and a seventh key S7;

[0107] The first end of the first button S1 is connected to the fourteenth pin of the processing chip, the first end of the second button S2 is connected to the sixteenth pin of the processing chip, the first end of the third button S3 is connected to the nineteenth pin of the processing chip, the first end of the fourth button S4 is connected to the twelfth pin of the processing chip, the first end of the fifth button S5 is connected to the thirtieth pin of the processing chip, the first end of the sixth button S6 is connected to the forty-first pin of the processing chip, and the first end of the seventh button S7 is connected to the fifteenth pin of the processing chip;

[0108] The second end of the first button S1 is respectively connected to the second end of the second button S2, the second end of the third button S3, the second end of the fourth button S4, the second end of the fifth button S5, the second end of the sixth button S6, and the second end of the seventh button S7 and grounded.

[0109] In an embodiment of the utility model, a user sends an adjustment signal to the fourteenth pin, the sixteenth pin, the nineteenth pin, the twelfth pin, the thirtieth pin, or the forty-first pin of the processing chip through the first button S1, the second button S2, the third button S3, the fourth button S4, the fifth button S5, the sixth button S6, or the seventh button S7. Each button corresponds to a flashing time and an interval time. By pressing any button, the flashing time and interval time corresponding to the button are input into the processor as the adjustment signal. The processor sends a light and dark control signal to the on-off control module according to the adjustment signal. The light and dark control signal is a square wave signal. For example, the adjustment signal is bright for 1ms and dark for 1ms. The processing chip sends a high-level flashing signal to the on-off control module. The on-off control module controls the first MOS tube M1 to be turned on according to the flashing signal and sends a light and dark control signal to the semiconductor laser. The semiconductor laser is controlled to be bright for 1ms and dark for 1ms, and flash repeatedly, that is, the laser illumination time is controlled to be 1ms and the single laser output interval is 2ms.

[0110] Most preferably, the input circuit is a knob SW1;

[0111] The first end of the knob SW1 is connected to the thirty-first pin of the processing chip, the second end of the knob SW1 is connected to the twenty-ninth pin of the processing chip, and the fourth end of the knob SW1 is connected to the fifth pin of the voltage stabilizing chip.

[0112] In an embodiment of the utility model, the user sends an adjustment signal to the thirty-first pin and the twenty-ninth pin of the processing chip by rotating the knob SW1, and the rotatable angle of the knob SW1 is evenly divided to obtain multiple gears, each gear corresponds to a flashing time and interval time, and by rotating to any gear, the flashing time and interval time corresponding to the gear is input into the processor as an adjustment signal, and the processor sends a bright and dark control signal to the on-off control module according to the adjustment signal, and the bright and dark control signal is a square wave signal; for example, when the adjustment signal is bright for 1ms and dark for 1ms, the processing chip sends a high-level flashing signal to the on-off control module, and the on-off control module controls the first MOS tube M1 to be turned on according to the flashing signal to send a bright and dark control signal to the semiconductor laser.

[0113] The utility model can also use the key input subcircuit in combination with the knob SW1, for example: after setting the light time to 1ms and the dark time to 1ms, add a node through any key, adjust the light time to 2ms and the dark time to 2ms through the knob SW1 again, and input these settings as adjustment signals into the processor, and the processor sends a light and dark control signal to the on-off control module according to the adjustment signal, and the light and dark control signal is a square wave signal; the processing chip sends a high-level flashing signal to the on-off control module, and the on-off control module controls the first MOS tube M1 to be turned on according to the flashing signal, and sends a light and dark control signal of 1ms on, 1ms off, 2ms on, and 2ms off to the semiconductor laser for adjustment.

[0114] Most preferably, it also includes a display screen for displaying light and dark time;

[0115] The first end of the display screen is connected to the 46th pin of the processing chip;

[0116] The second end of the display screen is connected to the 45th pin of the processing chip;

[0117] The third terminal of the display screen is connected to the fifth pin of the voltage regulator chip;

[0118] The fourth terminal of the display is grounded.

[0119] In the embodiment of the utility model, the page of the display screen can be switched by typing in the circuit, and the cycle number of the semiconductor laser can be adjusted by using the typing in circuit. For example, the cycle number of the semiconductor laser can be adjusted to less than 1 by using the typing in circuit, that is, the content displayed on the display screen is NULL, and it is an infinite loop at this time; if the cycle number of the semiconductor laser is set to 5, the content displayed on the display screen is 0005, and it is assumed that the first node is adjusted to be bright for 10ms and dark for 5ms by using the fourth button S4, and the second node is adjusted to be bright for 7ms and dark for 10ms by using the knob SW1, then the semiconductor laser will cycle 5 times in sequence according to 10ms bright, 5ms dark, 7ms bright, and 10ms dark; if it is to be set to be always on, the first button S1 is used to set the light time to 1ms and the dark time to 0ms.

[0120] Most preferably, the processing chip model is STM32F103C8T6, which uses high-performance Cortex TM -M3 32-bit RISC core, operating frequency is 72MHz, built-in high-speed memory of up to 128S bytes of flash memory and 20S bytes of static random access memory (SRAM), rich enhanced I / O ports and peripherals connected to two peripheral buses (APB, Advanced Peripheral Bus); all device models include 2 12-bit analog-to-digital converters (ADC, Analog-to-digital converter), 3 general-purpose 16-bit timers and 1 pulse width modulation (PWM, Pulse Width Modulation) timer, as well as standard and advanced communication interfaces; up to 2 I2C interfaces and serial peripheral interfaces (SPI, Serial Peripheral Interface), 3 universal synchronous / asynchronous serial receive / transmit interfaces (USART, Universal Synchronous / Asynchronous Receiver / Transmitter), a USB interface and a CAN interface.

[0121] Most preferably, the processing chip is connected to the power supply circuit, the input circuit, the on-off control circuit and the display screen through the pin header lead pins.

[0122] The output control system provided by the embodiment of the utility model includes a power supply circuit, a processor, a keying circuit, and an on-off control circuit. Compared with the prior art, the embodiment of the utility model sends a power signal to the processor, the on-off control circuit, and the keying circuit through the power supply circuit, receives and sends an adjustment signal to the processor through the keying circuit, and the processor sends a flashing signal to the on-off control circuit according to the adjustment signal. The flashing signal includes a flashing time and an interval time. The on-off control circuit sends a bright and dark control signal to the semiconductor laser through the flashing signal. The laser illumination time and the single laser output interval of the semiconductor laser are adjusted through the bright and dark control signal, and the control method is simple and reliable.

[0123] The above is a preferred embodiment of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An output control system of a semiconductor laser, characterized in that: include: Power supply circuit, processor, input circuit, on-off control circuit; The input end of the power supply circuit is connected to the mains terminal, and the output end of the power supply circuit is respectively connected to the power supply end of the processor, the power supply end of the on-off control circuit, and the power supply end of the input circuit; The output terminal of the input circuit is connected to the input terminal of the processor; The output end of the processor is connected to the input end of the on-off control circuit; The output end of the on-off control circuit is connected to the control end of the semiconductor laser; The power supply circuit sends a power signal to the processor, the on-off control circuit, and the typing circuit. The typing circuit sends an adjustment signal to the processor. The processor sends a flashing signal to the on-off control circuit according to the adjustment signal. The flashing signal includes a flashing time signal and an interval time signal. The on-off control circuit sends a bright and dark control signal to the semiconductor laser through the flashing signal. The bright and dark control signal is used to adjust the laser illumination time and the single laser output interval of the semiconductor laser.

2. The output control system of a semiconductor laser according to claim 1, characterized in that: The power supply circuit comprises: Connector, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a sixth capacitor, and a voltage stabilizing chip; The first pin of the connector is respectively connected to the mains terminal, the first pin of the voltage stabilizing chip, the third pin of the voltage stabilizing chip, and the first end of the first capacitor, and the second end of the first capacitor is grounded; The fifth pin of the connector is connected to the sixth pin of the connector and the seventh pin of the connector and is grounded; The fifth pin of the voltage stabilizing chip is respectively connected to the first end of the second capacitor, the first end of the third capacitor, the first end of the fourth capacitor, the first end of the fifth capacitor, the first end of the sixth capacitor, the power supply end of the processor, the power supply end of the on-off control circuit, and the power supply end of the typing circuit, and the second end of the second capacitor, the second end of the third capacitor, the second end of the fourth capacitor, the second end of the fifth capacitor, and the second end of the sixth capacitor are all grounded.

3. The output control system of a semiconductor laser according to claim 2, characterized in that: The on-off control circuit comprises: Photocoupler, first MOS tube, first resistor; The first pin of the photoelectric coupler is connected to the output end of the processor; The second pin of the photoelectric coupler is respectively connected to the third pin of the photoelectric coupler and the source of the first MOS tube and is grounded; The fourth pin of the photoelectric coupler is connected to the gate of the first MOS tube; The drain of the first MOS tube is connected to the control end of the semiconductor laser and the first end of the first resistor respectively; The second end of the first resistor is connected to the fifth pin of the voltage stabilizing chip and the semiconductor laser control end respectively.

4. The output control system of the semiconductor laser according to claim 3, characterized in that: The processor comprises: Burning interface, processing chip, first light emitting diode, second light emitting diode, second resistor, third resistor, fourth resistor, first crystal oscillator, seventh capacitor, eighth capacitor, second crystal oscillator, ninth capacitor, tenth capacitor, eighth button, eleventh capacitor, fifth resistor, sixth resistor, first interface, second interface, twelfth capacitor, thirteenth capacitor; The 24th pin of the processing chip, the 36th pin of the processing chip, the 48th pin of the processing chip, the anode of the first light-emitting diode, the anode of the second light-emitting diode, and the power supply end of the burning interface are all connected to the 5th pin of the voltage stabilizing chip; The cathode of the first light emitting diode is connected to the first end of the second resistor, and the second end of the second resistor is grounded; The cathode of the second light emitting diode is connected to the first end of the third resistor, and the second end of the third resistor is connected to the second pin of the processing chip; The second pin of the burning interface is connected to the thirty-fourth pin of the processing chip, and the third pin of the burning interface is connected to the thirty-seventh pin of the processing chip; The first end of the fourth resistor is respectively connected to the first end of the first crystal oscillator, the first end of the seventh capacitor, and the fifth pin of the processing chip, the second end of the seventh capacitor is connected to the second end of the eighth capacitor and is grounded, and the first end of the eighth capacitor is respectively connected to the second end of the first crystal oscillator, the second end of the fourth resistor, and the sixth pin of the processing chip; The first end of the second crystal oscillator is respectively connected to the first end of the ninth capacitor and the third pin of the processing chip, the second end of the ninth capacitor is connected to the second end of the tenth capacitor and is grounded, and the first end of the tenth capacitor is respectively connected to the second end of the second crystal oscillator and the fourth pin of the processing chip; The first end of the eighth button is connected to the first end of the eleventh capacitor and is grounded, and the second end of the eighth button is connected to the second end of the eleventh capacitor and the seventh pin of the processing chip respectively; The first pin of the first interface is connected to the first pin of the second interface and is grounded; The second pin of the first interface is connected to the first end of the fifth resistor, and the second end of the fifth resistor is connected to the twentieth pin of the processing chip; The third pin of the first interface is connected to the third pin of the second interface and connected to the fifth pin of the voltage regulator chip; The second pin of the second interface is connected to the first end of the sixth resistor, and the second end of the sixth resistor is connected to the 44th pin of the processing chip; The tenth pin of the processing chip is connected to the first pin of the photoelectric coupler; The twelfth pin of the processing chip, the fourteenth pin of the processing chip, the sixteenth pin of the processing chip, the nineteenth pin of the processing chip, the twenty-ninth pin of the processing chip, the thirtieth pin of the processing chip, the thirty-first pin of the processing chip, the forty-first pin of the processing chip, and the fifteenth pin of the processing chip are all connected to the output end of the key-in circuit; The eighth pin of the processing chip is respectively connected to the second end of the twelfth capacitor and the second end of the thirteenth capacitor and is grounded; The ninth pin of the processing chip is connected to the first end of the twelfth capacitor, the first end of the thirteenth capacitor, and the fifth pin of the voltage stabilizing chip respectively.

5. The output control system of a semiconductor laser according to claim 4, characterized in that: The key-in circuit is a key-in subcircuit composed of a first key, a second key, a third key, a fourth key, a fifth key, a sixth key, and a seventh key; The first end of the first button is connected to the fourteenth pin of the processing chip, the first end of the second button is connected to the sixteenth pin of the processing chip, the first end of the third button is connected to the nineteenth pin of the processing chip, the first end of the fourth button is connected to the twelfth pin of the processing chip, the first end of the fifth button is connected to the thirtieth pin of the processing chip, the first end of the sixth button is connected to the forty-first pin of the processing chip, and the first end of the seventh button is connected to the fifteenth pin of the processing chip; The second end of the first button is respectively connected to the second end of the second button, the second end of the third button, the second end of the fourth button, the second end of the fifth button, the second end of the sixth button, and the second end of the seventh button and is grounded.

6. The output control system of a semiconductor laser according to claim 4, characterized in that: The input circuit is a knob; The first end of the knob is connected to the thirty-first pin of the processing chip, the second end of the knob is connected to the twenty-ninth pin of the processing chip, and the fourth end of the knob is connected to the fifth pin of the voltage stabilizing chip.

7. The output control system of a semiconductor laser according to claim 6, characterized in that: Also includes display screen; The first end of the display screen is connected to the 46th pin of the processing chip; The second end of the display screen is connected to the 45th pin of the processing chip; The third end of the display screen is connected to the fifth pin of the voltage stabilizing chip; The fourth terminal of the display screen is grounded.

8. The output control system of a semiconductor laser according to claim 7, characterized in that: The model of the processing chip is STM32F103C8T6.

9. The output control system of a semiconductor laser according to claim 8, characterized in that: The processing chip is connected to the power supply circuit, the input circuit, the on-off control circuit and the display screen through pin header lead pins.

Images