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Spectrum adjusting system and method based on frequency modulation

A technology of frequency modulation and regulation system, applied in the direction of electrical components, etc., can solve the problem of waste of circuits and components, and achieve the effect of increasing the content of secondary metabolites

Pending Publication Date: 2022-02-25
4D BIOS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It solves the problem of using multi-channel power supply and multi-channel control system to realize spectrum adjustment in the prior art, which leads to a lot of waste of circuits and components

Method used

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  • Spectrum adjusting system and method based on frequency modulation
  • Spectrum adjusting system and method based on frequency modulation
  • Spectrum adjusting system and method based on frequency modulation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Such as Figure 1-7 As shown, the embodiment of this specification provides a spectrum adjustment system based on frequency modulation, including a power supply module 2 arranged outside the lamp 1, a current control module 3 and a light source module 4 arranged inside the lamp 1, the current control module 3 and The light source modules 4 are all electrically connected to the power supply module 2,

[0043] The power supply module 2 is used to output PWM voltage with adjustable frequency and constant voltage amplitude;

[0044] The light source module 4 includes a lamp bead circuit 5 composed of at least two lamp beads 51 with different spectra;

[0045] The current control module 3 includes a switch tube 31 and a control circuit 32, the switch tube 31 is electrically connected to the lamp bead circuit 5, and the control circuit 32 is configured to control the switch tube 31 to close or open by detecting the frequency of the PWM voltage output by the power supply modu...

Embodiment approach

[0051] In the first embodiment, if image 3 As shown, the lamp bead circuit 5 at least includes a first lamp bead circuit 52 and a second lamp bead circuit 53, the first lamp bead circuit 52 is formed by connecting multiple lamp beads 51 of a spectrum, and the second lamp bead circuit 53 is formed by another A plurality of lamp beads 51 of a spectrum are connected, the switch tube 31 includes at least a first switch tube 311 and a second switch tube 312, and the first lamp bead unit formed by connecting the first lamp bead circuit 52 and the first switch tube 311 in series 6 is connected in parallel with the second lamp bead unit 7 formed by the second lamp bead circuit 53 and the second switching tube 312 in series.

[0052] Specifically, when the control circuit 32 controls the corresponding switch tube to be turned off, the lamp bead unit where the switch tube 31 is located is in an open circuit state, so that the lamp bead 51 in the lamp bead circuit connected in series wi...

Embodiment 2

[0071] Such as Figure 1-6 with Figure 8-9 As shown, the control circuit 32 includes a frequency detection unit 321 and an operational amplifier 323. The control circuit 32 is configured to adjust the impedance of the switch tube 31 through the operational amplifier 323 when the frequency detection unit 321 detects the frequency of the PWM voltage output by the power supply module 2. size to adjust the luminous brightness of the corresponding lamp bead circuit 5 .

[0072] It should be noted that the output signal of the comparison output unit 322 is a high or low level, which is different from the comparison output unit 322, such as Figure 8 As shown, the output signal Vs of the operational amplifier 323 is a voltage signal whose amplitude can be changed, and the amplitude of the voltage signal Vs changes with the change of the difference between the voltage signal Vd output by the frequency detection unit and the reference signal Vr, The impedance of the switch tube 31 i...

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Abstract

The invention relates to a spectrum adjusting system and method based on frequency modulation, the system comprises a power supply module arranged outside a lamp, a current control module and a light source module, the current control module and the light source module are arranged inside the lamp, and the current control module and the light source module are both electrically connected with the power supply module. The power supply module is used for outputting PWM voltage with adjustable frequency and constant voltage amplitude; the light source module comprises a lamp bead circuit consisting of a plurality of lamp beads with at least two different spectrums; and the current control module comprises a switch tube and a control circuit, and the switch tube is electrically connected with the lamp bead circuit. The control circuit is set to control the switching tube to be switched on or switched off by detecting the frequency of the PWM voltage output by the power supply module so as to control the corresponding lamp bead circuit in the lamp to start to emit light or stop emitting light. The working states of the lamp beads with different spectrums are adjusted by detecting the frequency of the PWM voltage output by the power supply module, and spectrum adjustment of the light source module is achieved.

Description

technical field [0001] The invention relates to the technical field of plant lighting, in particular to a spectrum adjustment system and method based on frequency modulation. Background technique [0002] The general indoor plants will grow worse and worse with time, the main reason is the lack of light irradiation, so the LED light suitable for the spectrum required by the plants can not only promote their growth, but also prolong the flowering period of the plants and improve the quality of the plants. quality of flowers. This high-efficiency light source system can also be further applied to agricultural production facilities such as greenhouses and greenhouses. On the one hand, it can solve the disadvantages of the lack of sunlight that causes the taste of greenhouse vegetables to decline. purpose of cultivation. [0003] For some fruit crops, supplementary light can not only affect the fruit drop rate and yield of the plant, but also greatly improve the color and qual...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B45/325H05B45/305H05B45/20H05B45/10
CPCH05B45/325H05B45/305H05B45/20H05B45/10
Inventor 华桂潮陈庆
Owner 4D BIOS INC
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