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A power control device for vehicle use 2.4G wireless radio receiver

A power control device, wireless video technology, applied in the direction of output power conversion device, control/adjustment system, color TV parts, etc., can solve the problems of large power consumption, users forget to cut off the power supply, etc., to achieve convenience The effect of using

Active Publication Date: 2009-09-30
江苏常州武新产业投资有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The deficiency of the above-mentioned prior art is: the power supply of the existing 2.4G wireless video receiver is always connected with the car power supply (i.e. the car battery), which consumes a lot of power. its power supply

Method used

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  • A power control device for vehicle use 2.4G wireless radio receiver
  • A power control device for vehicle use 2.4G wireless radio receiver
  • A power control device for vehicle use 2.4G wireless radio receiver

Examples

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Embodiment 1

[0019] See figure 1 , the power control device of the 2.4G wireless video receiver of the present embodiment includes: a power output detection circuit 2, a power circuit 4 and a 2.4G wireless signal receiving and output processing circuit 5; the power output detection circuit 2 has a power input terminal, a power supply output terminal and switch signal output terminal; the power supply circuit 4 has a power supply input terminal, a power supply output terminal and a switch signal input terminal; the 2.4G wireless signal receiving and output processing circuit 5 has a power supply input terminal; the power supply input terminal of the power output detection circuit 2 and The power input end of the power supply circuit 4 is collinear, and as the power input end of the power control device, the power input end of the power control device is a port directly or indirectly connected to the power supply end of the vehicle in use.

[0020] The switch signal output end of the power o...

Embodiment 2

[0031] On the basis of Embodiment 1, there are the following differences in this embodiment:

[0032] See figure 2 , when the power control device of the present embodiment is installed, it is connected to the cigarette lighter seat as the automobile power supply end through a cigarette lighter with a DC conversion circuit. At this time, the power input to the power control device is 5V, and the power circuit 4 is composed of a filter circuit 4-3 and a voltage stabilizing circuit 4-2, and the voltage conversion circuit 4-1 of the embodiment 1 is removed. The voltage stabilizing circuit 4-2 is used to convert the input DC power of 5V into a constant voltage DC power of required value and output it to the 2.4G wireless signal receiving and output processing circuit 5 from its power output terminal.

[0033] The structure of the voltage stabilizing circuit 4-2 is the same as that in Embodiment 1, including: a voltage stabilizing module U3 whose output is a 3.3V DC voltage, a vo...

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Abstract

The invention relates to a power control device for a 2.4G wireless video receiver, which comprises a power output detection circuit, a power circuit and a 2.4G wireless signal receiving and output processing circuit. When the output current of a power output end of the power output detection circuit is less than 1mA, no power is output from the power output end of the power circuit and the 2.4G wireless signal receiving and output processing circuit stops working. When the output current of the power output end of the power output detection circuit is more than 100mA, power is output from the power output end of the power circuit and the 2.4G wireless signal receiving and output processing circuit gets electricity and starts to receive 2.4G wireless video signals and then does output processing. The 2.4G wireless video receiver of the invention does not need manual independent control over the power thereof, thereby saving power and being convenient for application.

Description

technical field [0001] The invention relates to a power control device of a 2.4G wireless video receiver. Background technique [0002] The 2.4G frequency band is used as a public frequency band in various short-distance wireless communication or wireless control systems. Chinese patent literature publication number CN1964471 discloses a digital video walkie-talkie with a 2.4G public frequency band, which includes a power supply circuit, a voice processing circuit, a video processing circuit, a central processing unit, and a radio frequency transceiver circuit and an antenna connected to the central processing unit. The processing circuit includes a microphone, a loudspeaker and a voice codec circuit connected to the central processing unit, the microphone and the loudspeaker are respectively connected to the voice codec circuit, the video processing circuit includes a display device and a COMS camera connected to the central processing unit, and the radio frequency transcei...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/44H04N5/63H05K11/02G05F1/56H02M3/00
Inventor 秦春达姜加伟
Owner 江苏常州武新产业投资有限公司
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