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Multi-primary-color movie and television lamp DC driver applied to multi-path constant-current output

A constant current output, multi-primary color technology, applied in electrical components and other directions, can solve the problems of high lamp panel temperature, inability to accurately control the color mixing effect, and inability to achieve precise dimming, etc., to achieve low lamp panel temperature and dimming. Precise and stable performance

Pending Publication Date: 2020-11-27
广东类恒星科技影视工业有限公司
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] The existing multi-color LED video lights use other DC drivers including constant voltage schemes, but there are the following problems: 1. The precise dimming of more than 8 bits cannot be achieved; 2. The temperature of the lamp board is high; 3. Color mixing The effect cannot be precisely controlled

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  • Multi-primary-color movie and television lamp DC driver applied to multi-path constant-current output
  • Multi-primary-color movie and television lamp DC driver applied to multi-path constant-current output
  • Multi-primary-color movie and television lamp DC driver applied to multi-path constant-current output

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Embodiment Construction

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0034] like Figure 1 to Figure 16 The DC drive of multi-primary color film and television lamps of the present invention, which is applied to multi-channel constant current output, includes a main control chip VU2, an input voltage conversion circuit, a power management circuit, a voltage stabilization circuit, an external power supply circuit, a connection interface J1, and a signal Input interface J2, signal output interface J3, drive circuit ...

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Abstract

The invention discloses a multi-primary-color movie and television lamp DC driver applied to multi-path constant-current output. The driver comprises a main control chip VE2, an input voltage conversion circuit, a power supply management circuit, a voltage stabilizing circuit, an external power supply circuit, a connection interface J1, a signal input interface J2, a signal input interface J1, a signal output interface J3, a drive circuit BLU, a drive circuit GRE, a drive circuit RED, a drive circuit COO and a drive circuit WHI. The input voltage conversion circuit provides stable voltage forthe main control chip VE2, the power supply management circuit, the voltage stabilizing circuit and the external power supply circuit. And the power supply management circuit respectively provides stable voltage for the driving circuit BLU, the driving circuit GRE, the driving circuit RED, the driving circuit COO and the driving circuit WHI. Input signals, such as PWM signals, of different drive circuits are received, multi-path current output is accurately controlled, and the PWM dimming multi-primary-color lamp is convenient to use.

Description

technical field [0001] The invention relates to a driving power supply, in particular to a DC driving of multi-primary-color film and television lamps applied to multi-channel constant current output. Background technique [0002] The existing multi-color LED video lights use other DC drivers including constant voltage schemes, but there are the following problems: 1. The precise dimming of more than 8 bits cannot be achieved; 2. The temperature of the lamp board is high; 3. Color mixing The effect cannot be precisely controlled. Therefore, in order to avoid the shortcomings existing in the prior art, it is necessary to improve the prior art. Contents of the invention [0003] The object of the present invention is to overcome the disadvantages and deficiencies in the prior art, and provide a DC drive for multi-primary-color film and television lamps applied to multiple constant current outputs. [0004] The present invention is achieved through the following technical s...

Claims

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Application Information

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IPC IPC(8): H05B45/345H05B45/325
CPCH05B45/325H05B45/345
Inventor 谢小本宋毓俊余成忠
Owner 广东类恒星科技影视工业有限公司