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Adaptive voltage switching circuit and antenna system

A technology of self-adaptive voltage and conversion circuit, which is applied in the direction of antenna, control/regulation system, output power conversion device, etc., can solve the problem of reliability decline of antenna system, achieve simple structure, ensure reliability requirements, and save costs Effect

Inactive Publication Date: 2012-10-10
深圳市华夏泰和科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide an adaptive voltage conversion circuit and antenna system to solve the problem of decreased reliability of the antenna system generated by the direct power supply of the set-top box to the LNB in ​​the prior art

Method used

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  • Adaptive voltage switching circuit and antenna system
  • Adaptive voltage switching circuit and antenna system
  • Adaptive voltage switching circuit and antenna system

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Embodiment Construction

[0029] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0030] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0031] Such as figure 2 Shown is a functional block diagram of the adaptive voltage conversion circuit of the present invention; the above-mentioned adaptive voltage conversion circuit includes a voltage conversion unit 1 and a control unit 2, and the voltage conversion unit 1 is used for input voltage V in1 step-down and according to the STB output voltage V in2 , boost the voltage obtained after step-down to the first reference voltage U1 / second reference voltage U2; the control unit 2 is used to output 13V / 18V voltage V according to the output voltage of the voltage conversion unit OUT , where U1, U2≥18V, and U1≤U2-2V; voltage conversion unit 1 and cont...

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Abstract

The invention relates to an adaptive voltage switching circuit and an antenna system. The switching circuit comprises a voltage switching unit and a control unit, wherein the voltage switching unit is used for reducing an input voltage and boosting the voltage after reduction voltage to a first reference voltage / second reference voltage in accordance with an output voltage of an STB (set top box); and the control unit is used for outputting a 13V / 18V voltage in accordance with the voltage output by the voltage switching unit. The antenna system comprises an adaptive voltage switching circuit, an LNB (low noise block converter) and an antenna in successive connection. According to the invention, the structure is simple and the reliability requirement of an antenna can be ensured.

Description

technical field [0001] The invention relates to the field of antennas, in particular to an adaptive voltage conversion circuit and an antenna system. Background technique [0002] In the current satellite receiving antenna system of ChinaSat Jiudong Zhongtong, the antenna system includes a low-noise block converter (LNB), antenna and motor, such as figure 1 As shown, the LNB is connected to the antenna, and the motor is respectively connected to the LNB and the antenna to drive the rotation of the antenna and the LNB so that the antenna can automatically search for satellite signals; the input voltage of the antenna system is required to range from 9 to 30V, provided by the power supply, and the LNB The left-handed / right-handed voltage of the LNB is 13V / 18V; the output voltage of the set-top box working with the antenna system is 13V / 18V, because the output voltage of the set-top box is consistent with the left-handed / right-handed voltage of the LNB, in the prior art, the se...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M3/00H01Q23/00
Inventor 田辉群王春华
Owner 深圳市华夏泰和科技有限公司