A broadcast power amplification protection device
A protection device and power amplification technology, which is applied in the field of broadcasting, can solve the problems of shortening the life of the whole machine, impact, and easy to be frightened, so as to prolong the life of the whole machine and avoid the effect of current shock
Active Publication Date: 2018-04-13
广州市西派电子科技股份有限公司
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Problems solved by technology
[0003] The technical problem to be solved by the present invention is to provide a device that can avoid large current impact and prolong the life of the whole machine in view of the above-mentioned defects of the prior art that have a large current impact, shorten the life of the whole machine, and easily frighten people when starting up. , The broadcast power amplification protection device that is not easy to be frightened when starting up
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[0017] 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, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0018] In the embodiment of the broadcast power amplification protection device of the present invention, the structural diagram of the broadcast power amplification protection device is as follows figure 1 shown. figure 1 Among them, the broadcast power amplification and protection device includes a pre-inverting amplifying circuit 1, a power amplifying circuit 2, a power-on protection delay circuit 3 and a volume-increasing delay circuit 4, and the power amplifyi...
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The present invention proposes a broadcast power amplification protection device, which includes a pre-phase inverting amplifier circuit, a power amplifier circuit, a power-on protection delay circuit, and a volume-increasing delay circuit. The amplifying circuit is connected with the power-on protection delay circuit, and the power-on protection delay circuit is also connected with the front inverting amplifying circuit and the volume gradually increasing delay circuit respectively, and the volume gradually increasing delay circuit is also connected with the front It is connected to an inverting amplifier circuit, which is used to make the volume gradually increase every time the machine is turned on or restarted. The broadcast power amplification and protection device of the present invention has the following beneficial effects: it can avoid large current impact, prolong the life of the whole machine, and it is not easy to startle people when starting up.
Description
technical field [0001] The invention relates to the field of broadcasting, in particular to a broadcasting power amplification protection device. Background technique [0002] At present, the volume of the broadcast power amplifier is louder when it is turned on. This situation has a great impact on the speaker, which means that there is a large current impact on the transistor and the protector, which will cause a very large loss on the transistor and the protector, resulting in shortening. Machine life. In addition, if people suddenly play music without knowing the actual situation, it will often frighten others and easily frighten everyone. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a device that can avoid large current impact and prolong the life of the whole machine in view of the above-mentioned defects of the prior art that have a large current impact, shorten the life of the whole machine, and easil...
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IPC IPC(8): H03F1/52
Inventor 徐君武
Owner 广州市西派电子科技股份有限公司