A universal laser diode controller

Abstract

This utility model relates to a universal laser diode controller, comprising a housing, a type board, and a circuit board disposed within the housing. The housing has a laser diode interface with a magnetic clamp in front of it. The housing also has a type board interface, with different type boards corresponding to different laser diode pin types. The circuit board houses a laser diode driver module, which is electrically connected to the laser diode interface via the type board. The advantages of this utility model are: the magnetic clamp secures the laser diode, preventing pin damage; and the availability of different type boards allows for compatibility with laser diodes with varying pin definitions.

Description

Technical Field

[0001] This utility model relates to the field of laser and optoelectronic technology, and in particular to a general-purpose laser diode controller. Background Technology

[0002] Laser diodes (LDs), as core optoelectronic devices, are widely used in communications, sensing, medical, and scientific research fields. Currently, most commercially available laser diodes use a coaxial 3-pin package structure. This packaging method makes laser diodes susceptible to damage, such as pin loss or short circuits, and is not easy to drive stably. In addition, the pin definitions of laser diodes from different manufacturers (such as Type 1 and Type 2) differ, making it difficult for general-purpose driver modules to be compatible. This leads to users needing to frequently replace driver devices, increasing usage costs. Summary of the Invention

[0003] This invention mainly solves the above-mentioned problems by providing a universal laser diode controller that can effectively fix the laser diode, avoid pin damage, and be compatible with laser diodes with different pin definitions.

[0004] The technical solution adopted by this utility model to solve its technical problem is a universal laser diode controller, including a housing, a type board, and a circuit board disposed in the housing. The housing is provided with a laser diode interface, and a magnetic clamp is provided in front of the laser diode interface. The housing is provided with a type board interface, and different type boards correspond to different laser diode pin types. The circuit board is provided with a laser diode driving module, and the laser diode driving module is electrically connected to the laser diode interface through the type board.

[0005] As a preferred embodiment of the above solution, the magnetic clamp includes a base plate, a base and a movable plate. The base plate is mounted on the outer shell, and the base is detachably mounted on the base plate. The first end of the movable plate is rotatably connected to the first end of the base. The second end of the movable plate is provided with a magnetic block facing the base. The middle of the movable plate and the middle of the base are both provided with semi-circular grooves. The two semi-circular grooves are combined to form a clamping hole for clamping the laser diode.

[0006] As a preferred embodiment of the above solution, the type board interface includes a driver module side interface and a laser diode side interface. The driver module side interface is electrically connected to the laser diode driver module and outputs PD+, PD-, LD- and LD+ respectively. The laser diode side interface is connected to the pins on the laser diode interface one by one. Different type boards allow each driver module side interface and each laser diode side interface to form different corresponding connection relationships.

[0007] As a preferred embodiment of the above solution, the laser diode interface, type board interface, and magnetic clamp are disposed on the upper surface of the housing. The upper surface of the housing is also provided with a display screen, a current adjustment knob, a laser diode power switch, a laser diode power indicator light, and a power indicator light.

[0008] As a preferred embodiment of the above solution, the side of the housing is provided with a power interface, a power switch, a USB interface, an RS485 interface, and a USB / RS485 switch.

[0009] The advantages of this invention are: it is equipped with a magnetic clamp to fix the laser diode and avoid damage to the laser diode pins; it is equipped with different type boards, and by selecting different type boards, it can adapt to laser diodes with different pin definitions. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of a general-purpose laser diode controller.

[0011] Figure 2 This is a schematic diagram of the magnetic module.

[0012] Figure 3 This is a schematic diagram of the type plate structure.

[0013] Figure 4 This is the pin output corresponding to the Type 1 laser diode.

[0014] Figure 5 This is the pin output corresponding to the type 2 laser diode.

[0015] 1-House 2-Laser diode interface 3-Magnetic clamp 4-Type board 5-Display screen 6-Current adjustment knob 7-Laser diode power switch 8-Power indicator light 9-Laser diode power indicator light 10-Power interface 11-Power switch 12-USB interface 13-RS485 interface 14-USB / RS485 switch 31-Base plate 32-Base 33-Modible plate 34-Magnetic block 35-Semi-circular groove Detailed Implementation

[0016] The technical solution of this utility model will be further described below through embodiments and in conjunction with the accompanying drawings.

[0017] Example:

[0018] This embodiment describes a general-purpose laser diode controller, such as... Figure 1As shown, the device includes a housing 1, a type board 4, and a circuit board housed within the housing. The upper surface of the housing features a laser diode interface 2, a type board interface, a magnetic clamp 3, a display screen 5, a current adjustment knob 6, a laser diode power switch 7, a laser diode power indicator light 9, and a power indicator light 8. The sides of the housing feature a power interface 10, a power switch 11, a USB interface 12, an RS485 interface 14, and a USB / RS485 switch 13. A laser diode driver module is mounted on the circuit board, and this module is electrically connected to the laser diode interface via the type board 4. Different type boards correspond to different laser diode pin types.

[0019] The magnetic clamp 3 is positioned in front of the laser diode interface 2, such as... Figure 2 As shown, the magnetic clamp 3 includes a base plate 31, a base 32, and a movable plate 33. The base plate 31 is mounted on the outer casing, and the base 32 is detachably mounted on the base plate 31. The first end of the movable plate 33 is rotatably connected to the first end of the base 33, and the second end of the movable plate 33 facing the base has a magnetic block 34. Both the middle of the movable plate 33 and the middle of the base 32 have semi-circular grooves 35. The two semi-circular grooves combine to form a clamping hole for holding the laser diode. In this embodiment, for laser diodes without mounting flanges, the magnetic clamp can directly hold them to avoid damage to the laser diode leads. For laser diodes with mounting flanges, the magnetic clamp cannot effectively hold them. In this case, the base and movable plate can be removed, and the laser diode can be fixed using the bolts of the fixed base and the pressure plate.

[0020] In this embodiment, there are two type plates, such as... Figure 3 The diagram shows Type 1 and Type 2 boards, corresponding to the pin definitions of Type 1 and Type 2, respectively. The type board interface includes a driver module side interface and a laser diode side interface. The driver module side interface is electrically connected to the laser diode driver module, outputting PD+, PD-, LD-, and LD+ respectively. The laser diode side interface is connected one-to-one with the pins on the laser diode interface. Different type boards result in different corresponding connection relationships between each driver module side interface and each laser diode side interface. For a Type 1 laser diode with specific pin definitions, as shown... Figure 4 As shown, the four pins of the laser diode interface should correspond to PD+, PD-, LD+ / Case, and LD- from left to right and top to bottom, respectively. Specifically, for Type 1 boards, the laser diode driver module output PD+ should be routed to the upper left pin of the laser diode interface, PD- to the upper right pin, LD+ to the lower left pin, and LD- to the lower right pin. For Type 2 laser diodes with defined pins, as shown... Figure 5As shown, the four pins of the laser diode interface should correspond to PD- / LD+, PD+, Case, and LD- from left to right and top to bottom, respectively. That is, the Type 2 board should import the outputs of the laser diode driver module PD- and LD+ into the upper left pin of the laser diode interface, import PD+ into the upper right pin, and import LD- into the lower right pin.

[0021] In this embodiment, the laser diode driving module adopts a constant current driving scheme, using a high-precision operational amplifier and power transistor to form a digitally adjustable driving circuit. Overcurrent and overvoltage protection is implemented in the hardware to ensure stable driving control of the laser diode. Furthermore, a magnetic clamp is used to fix the laser diode, preventing damage to its pins. Different types of boards are also provided, allowing for the selection of different board types to accommodate laser diodes with different pin definitions.

[0022] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A universal laser diode controller, characterized in that: The device includes a housing, a type board, and a circuit board disposed within the housing. The housing has a laser diode interface with a magnetic clamp in front of it. The housing also has a type board interface, with different type boards corresponding to different laser diode pin types. The circuit board has a laser diode driver module, which is electrically connected to the laser diode interface via the type board.

2. The universal laser diode controller according to claim 1, characterized in that: The magnetic clamp includes a base plate, a base, and a movable plate. The base plate is mounted on the outer shell, and the base is detachably mounted on the base plate. The first end of the movable plate is rotatably connected to the first end of the base. The second end of the movable plate is provided with a magnetic block facing the base. The middle of the movable plate and the middle of the base are both provided with semi-circular grooves. The two semi-circular grooves are combined to form a clamping hole for clamping the laser diode.

3. The universal laser diode controller according to claim 1, characterized in that: The type board interface includes a driver module side interface and a laser diode side interface. The driver module side interface is electrically connected to the laser diode driver module and outputs PD+, PD-, LD- and LD+ respectively. The laser diode side interface is connected to the pins on the laser diode interface one by one. Different type boards make each driver module side interface and each laser diode side interface form different corresponding connection relationships.

4. The universal laser diode controller according to claim 1, characterized in that: The laser diode interface, type board interface, and magnetic clamp are located on the upper surface of the housing. The upper surface of the housing is also equipped with a display screen, a current adjustment knob, a laser diode power switch, a laser diode power indicator light, and a power indicator light.

5. The universal laser diode controller according to claim 1, characterized in that: The side of the housing is equipped with a power interface, a power switch, a USB interface, an RS485 interface, and a USB / RS485 switch.

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