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Standby power amplifier switching circuit, method and broadcasting system

A backup power amplifier and switching circuit technology, which is applied in broadcasting system control, broadcast information monitoring, advanced technology, etc., can solve the problems of unable to switch backup power amplifiers, etc., and achieve the effect of ensuring smooth playback and improving stability

Active Publication Date: 2021-07-30
BEIJING URBAN CONSTR INTELLIGENT CONTROL TECH CO LTD
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Problems solved by technology

[0003] The purpose of this disclosure is to provide a backup power amplifier switching circuit, method and broadcasting system to solve the problem in the related art that the main power amplifier core control chip cannot be switched to the backup power amplifier

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  • Standby power amplifier switching circuit, method and broadcasting system
  • Standby power amplifier switching circuit, method and broadcasting system

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Embodiment Construction

[0053] Specific embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present disclosure, and are not intended to limit the present disclosure.

[0054] It should be noted that in the present disclosure, the terms "first", "second" and the like in the description, claims and drawings are used to distinguish similar objects, and should not be interpreted as describing a specific order or sequence . Similarly, the terms "S11", "S12" and the like are used to distinguish steps, and it is not necessary to understand that the method steps are performed in a specific order or sequential order.

[0055] Before introducing the standby power amplifier switching circuit, method and broadcasting system provided by the present disclosure, the application scenarios of the embodiments of the present disclosure are fir...

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Abstract

The present disclosure relates to a standby power amplifier switching circuit, method and broadcasting system to solve the problem that the main power amplifier cannot be switched to the standby power amplifier when the core control chip of the main power amplifier is down. Including: the main power amplifier fault detection sub-circuit, the control sub-circuit connected with the main power amplifier fault detection sub-circuit, the standby power amplifier state detection sub-circuit connected with the control sub-circuit, the drive sub-circuit connected with the control sub-circuit, and the drive sub-circuit connected relay; the main power amplifier fault detection sub-circuit is used to output the first state level signal according to the fault state of the main power amplifier circuit; the standby power amplifier state detection sub-circuit is used to output the second state level signal according to the working state of the backup power amplifier circuit; the control The sub-circuit is used to control the working state of the driving sub-circuit according to the first state level signal and the second state level signal, so as to control the on-off state of the coil of the relay. In this way, it is possible to switch to the standby power amplifier circuit when the main chip of the main power amplifier is down.

Description

technical field [0001] The present disclosure relates to the technical field of multimedia broadcasting, and in particular, to a standby power amplifier switching circuit, method and broadcasting system. Background technique [0002] In the broadcasting system, it is necessary to configure a backup power amplifier circuit for the main power amplifier circuit, so that when the main power amplifier circuit fails and cannot be played, it can be switched to the backup power amplifier circuit, thereby ensuring that the broadcasting system can play normally. In a related scenario, the function of switching the backup power amplifier circuit is configured on the core chip of the digital power amplifier circuit. In case of failure of the main power amplifier circuit, the core chip of the digital power amplifier circuit controls the switching of the playback function to the backup circuit. Contents of the invention [0003] The purpose of the present disclosure is to provide a back...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04H60/32H04H60/09
CPCH04H60/09H04H60/32Y02D30/70
Inventor 吴正中慕玉婷张辉张涛
Owner BEIJING URBAN CONSTR INTELLIGENT CONTROL TECH CO LTD
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