Pulse VCSEL (Vertical Cavity Surface Emitting Laser) laser driving circuit based on USB power supply

A laser-driven and pulse-driven technology, applied in circuits, lasers, laser components, etc., can solve problems such as inability to apply VCSEL arrays well, low output voltage and current, and limiting device performance.

Active Publication Date: 2016-10-05
NINGBO SUNNY OPOTECH CO LTD
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

Therefore, when some low-power devices, such as handheld portable devices, 3D scanning products, and laser back projection modules, etc. apply VCSEL arrays in the circuit, due to the power supply characteristics of the device such as low voltage and low current, it cannot be used very quickly in these products. well applied VCSEL arrays, thus limiting the performance of the device
[0004] In some handheld portable devices, VCSEL arrays are used, and a lithium battery or a USB (Universal Seri

Method used

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  • Pulse VCSEL (Vertical Cavity Surface Emitting Laser) laser driving circuit based on USB power supply
  • Pulse VCSEL (Vertical Cavity Surface Emitting Laser) laser driving circuit based on USB power supply
  • Pulse VCSEL (Vertical Cavity Surface Emitting Laser) laser driving circuit based on USB power supply

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Embodiment Construction

[0057] The following description serves to disclose the present invention to enable those skilled in the art to carry out the present invention. The preferred embodiments described below are only examples, and those skilled in the art can devise other obvious variations. The basic principles of the present invention defined in the following description can be applied to other embodiments, variations, improvements, equivalents and other technical solutions without departing from the spirit and scope of the present invention.

[0058] Such as figure 1 , figure 2 Shown is a circuit block diagram of a pulsed VCSEL laser drive circuit based on USB power supply according to a preferred embodiment of the present invention. The described pulse VCSEL laser drive circuit based on USB power supply includes a VCSEL laser drive circuit for driving a VCSEL array; an energy storage protection circuit for providing drive current to the laser and electrically connected to the VCSEL laser dr...

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Abstract

The invention discloses a pulse VCSEL (Vertical Cavity Surface Emitting Laser) laser driving circuit based on USB power supply and a method thereof. The circuit comprises a VCSEL laser driving circuit, an energy storage circuit and a power processing module, wherein the VCSEL laser driving circuit is used for driving a VCSEL array; the energy storage circuit is used for storing electric energy and providing driving electric energy for the VCSEL laser driving circuit, and the energy storage circuit is electrically connected with the VCSEL laser driving circuit; and the power processing module is used for providing electric energy for the energy storage circuit, the power processing module is electrically connected with the energy storage circuit, the power supply module comprises a USB interface and the power processing module, and the power processing module is electrically connected with the USB interface.

Description

technical field [0001] The present invention relates to a VCSEL laser drive circuit, and further relates to a VCSEL array drive applied to handheld laser projection and 3D scanning products and a detection power supply module for laser reverse projection products. Background technique [0002] VCSEL (Vertical Cavity Surface Emitting Laser) is a new type of semiconductor laser, which has the advantages of single longitudinal mode operation, circular cross-section emitting light, easy to form a two-dimensional array, and suitable for on-line wafer-level testing. It is widely used. In the fields of photoelectric communication and photoelectric control. [0003] The VCSEL array is a high-power constant-current drive device, and generally requires an external dedicated high-power constant-current circuit to drive it. Therefore, when some low-power devices, such as handheld portable devices, 3D scanning products, and laser back projection modules, etc. apply VCSEL arrays in the c...

Claims

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Application Information

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IPC IPC(8): H01S5/042
Inventor 周焕标周炳王宗泽
Owner NINGBO SUNNY OPOTECH CO LTD
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