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Light supplement driving control circuit and method and network camera

A technology for driving control circuits and network cameras, applied in electrical components and other directions, can solve problems such as unfavorable module costs, tight PWM ports, insufficient PWM ports, etc., and achieve the effect of reducing occupation requirements, reducing module costs, and simplifying circuit structure.

Active Publication Date: 2021-09-28
ZHEJIANG UNIVIEW TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, on the one hand, it is not conducive to reducing the module cost, on the other hand, it also makes the number of PWM ports of the main control chip of the network camera more tense, and it is easy to have insufficient PWM ports

Method used

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  • Light supplement driving control circuit and method and network camera
  • Light supplement driving control circuit and method and network camera
  • Light supplement driving control circuit and method and network camera

Examples

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Embodiment Construction

[0049] The core of the present application is to provide a supplementary light driving control circuit, method and network camera, so as to rationally and effectively simplify the circuit structure, reduce module cost, and effectively reduce the occupation requirement for the PWM port of the main control chip.

[0050]In order to describe the technical solutions in the embodiments of the present application more clearly and completely, the technical solutions in the embodiments of the present application will be introduced below in conjunction with the drawings in the embodiments of the present application. Apparently, the described embodiments are only some of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0051] At present, in the supplementary light drive control c...

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Abstract

The invention discloses a light supplementing driving control circuit and method and a network camera. The circuit comprises a main control chip, a driving circuit, a light supplementing lamp and a selective switch connected with the light supplementing lamp in series. The PWM output end of the main control chip is used for outputting PWM modulation waves to the input end of the driving circuit; the main control chip is connected with the control end of each selection switch and is used for controlling the on-off of each selection switch; and the output end of the driving circuit is connected with each selection switch and is used for outputting a driving signal, wherein the driving signal corresponds to the PWM modulation wave, and the driving circuit drives the corresponding light supplementing lamp to emit light based on the driving signal. According to the invention, switching of different light supplementing modes can be realized only by using one driving circuit to cooperate with the selection switch, so the circuit structure is reasonably simplified, the module cost is reduced, and the occupation demand on the PWM port of the main control chip is effectively reduced.

Description

technical field [0001] The present application relates to the technical field of circuit design, in particular to a supplementary light driving control circuit, method and network camera. Background technique [0002] Generally, at night or in other low-light environments, the network camera will use the supplementary light drive control circuit to drive the supplementary light to emit light so as to take pictures normally. [0003] At present, network cameras are generally equipped with a variety of fill lights. Turn on the infrared fill light at night or when the light is dark to enter the infrared mode, and turn on the white light to enter the full-color mode when the light is sufficient during the day. In addition, for the zoom network camera, Its infrared supplementary light can be further divided into high-beam infrared lamp supplementary light and low-beam infrared lamp supplementary light. [0004] In the supplementary light drive control circuit of the network came...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B47/11
CPCY02B20/40
Inventor 万新贺
Owner ZHEJIANG UNIVIEW TECH CO LTD
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