High-accuracy laser remote-sensing numerically-controlled power supply system and control method

A power supply system, high-precision technology, applied in the direction of lasers, laser components, semiconductor lasers, etc., can solve the problems of low voltage, high current, constant current accuracy, low digitalization of laser power supply, etc., to reduce temperature rise, improve steady current accuracy, The effect of improving system efficiency

Active Publication Date: 2018-03-30
BEIJING UNIV OF TECH
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Problems solved by technology

[0005] The purpose of the present invention is to solve the problems of low digitization of the laser power supply pumped by semiconductors and relatively low precision of constant current at low voltage and high current, and improve the above-mentioned trad

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  • High-accuracy laser remote-sensing numerically-controlled power supply system and control method
  • High-accuracy laser remote-sensing numerically-controlled power supply system and control method
  • High-accuracy laser remote-sensing numerically-controlled power supply system and control method

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Embodiment Construction

[0028] The present invention will be further described below in conjunction with the accompanying drawings.

[0029] Such as figure 1 As shown, a high-precision laser remote sensing numerical control power supply system, the invention has designed five circuit modules, including BOOSTPFC module (1), chip isolation power supply module (4), MOS drive module (30), main circuit step-down module (13) and a control module (31).

[0030] The BOOSTPFC module (1) includes a rectification circuit (2) and a power factor correction circuit (3). The rectifier circuit (2) rectifies and filters the input 220V AC into a DC voltage, and the power factor correction circuit (3) boosts the DC voltage output by the rectifier circuit (2) into a 390V DC voltage through the power factor adjustment chip UCC28019 (3 ), the BOOSTPFC module (1) has a higher power factor and improves the utilization rate of the power grid.

[0031] The chip-isolated power supply module (4) includes a 390V DC voltage in...

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Abstract

The invention discloses a high-accuracy laser remote-sensing numerically-controlled power supply system and a control method. The system comprises a BOOST PFC (power factor correction) module, a chip-isolating power supply module, an MOS (metal oxide semiconductor) driving module, a main circuit voltage reducing module and a control module. The BOOST PFC module is connected with the chip-isolatingpower supply module and the main circuit voltage reducing module. The chip-isolating power supply module is connected with the MOS driving module. The main circuit voltage reducing module is connected with the control module. The control module is connected with the MOS driving module. The MOS driving module is connected with the main circuit voltage reducing module. The high-accuracy laser remote-sensing numerically-controlled power supply system and the control method have the advantages that the problems of low digitization of the laser power sources of semiconductor pumps and low constantcurrent accuracy of low voltage and high currents are solved; the structures of conventional two-stage series circuits are improved, and accordingly, high-accuracy working currents can be provided tolaser remote-sensing semiconductor laser devices; the control method capable of achieving rapid algorithm filtering, high-accuracy control and high-robustness control is provided.

Description

technical field [0001] The invention belongs to the field of laser power supply and automatic control, and relates to a laser remote sensing power supply system capable of realizing digital control and a constant current control method of the power supply. Background technique [0002] Laser remote sensing is an active modern optical remote sensing device, which is an extension of traditional radio or microwave radar (radar) to the optical frequency band. Laser remote sensing technology is not only an active remote sensing technology, but also can obtain the spatial characteristics and physical characteristics of the earth's surface at the same time, which has an irreplaceable role in passive optical remote sensing. Due to the shortening of the wavelength of the probe beam and the strengthening of the directionality, the laser radar has the advantages of high spatial and temporal resolution and high detection sensitivity, and is widely used in remote sensing of the atmospher...

Claims

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Application Information

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IPC IPC(8): H01S5/042
CPCH01S5/042
Inventor 吴坚杜永均叶杏郭威陈涛
Owner BEIJING UNIV OF TECH
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