Power supply quick response voltage-stabilized power supply circuit based on 5G communication system

Abstract

The invention provides a power supply quick response voltage-stabilized power supply circuit based on a 5G communication system, which comprises an enhancement circuit, wherein the enhancement circuitcomprises a basic enhancement circuit, a first compensation loop circuit, a second compensation loop circuit and an enhancement output circuit which are connected in sequence and used for enhancing response. According to the invention, the first compensation loop circuit and the second compensation loop circuit are additionally arranged on the existing basic enhancement circuit, quick response ofabout 150ns of a power supply system of the 5G communication system is realized, and the problem that the stabilization time of a quick response voltage stabilizing circuit in the prior art cannot reach some high-standard requirements in 5G communication is solved.

Description

technical field [0001] The invention belongs to the field of fast-response system power supply design, and in particular relates to a fast-response regulated power supply circuit based on a 5G communication system. Background technique [0002] With the development of science and technology, 5G has become a hot trend in recent years. The development and innovation of a technology will drive the innovation of its related technologies. For example, the rapid development of 5G will bring about the development of other related fields. Higher requirements. In the construction of 5G, many related projects require a fast-response regulated power supply circuit to provide power, and at the same time occupy a small chip area. It is required that the output current to the load range from zero milliamps to hundreds of nanometers. Seconds rise to tens of milliamps, and the output voltage must also be stable. Many fast-response voltage regulator circuits have been proposed, and there are...

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Problems solved by technology

[0002] With the development of science and technology, 5G has become a hot trend in recent years. The development and innovation of a technology will drive the innovation of its related technologies. For example, the rapid development of 5G will bring about the development of other related fields. Higher requirements. In the construction of 5G, many related projects require a fast-response regulated power supply circuit to provide power, and at the same time occupy a small chip area. It is required that the output current to the load range from zero milliamps to hundreds of nanometers. Seconds rise to tens of milliamps, and the output voltage must also be stable. Many fast-response voltage regulator circuits have been proposed, and there are many implementation methods. The most common method is in the traditional low-dropout linear regulator itself. Modifying the circuit, increasing the current of the relevant branch or adjusting the amplitude-frequency characteristic curve will increase the response speed more or less. Many circuits with fast response compensation modules have also been proposed. Due to the recent rise of 5G communication technology, traditional fast The response source is no longer applicable, and it is difficult for a circuit with a general structure to meet such requirements, and a circuit with a new architecture is urgently needed to realize this function;

[0003] The key parameter required for this type of problem is the stabilization time. The stabilization time of a general fast-response voltage regulator circuit is about 1us. At present, the stabilization time of a better fast-response voltage regulator circuit is about 500ns. This circuit can also reach It is less than the requirements of some high-standard projects, and the load response of these circuits is that the output current starts to rise from a certain current value. Some projects require that the current rise from zero. 5G communication is different from traditional 4G, 3G, etc. , hardware and software have very high standard requirements, the rapid response achieved by the existing technology cannot meet the technical standards of the relevant module source, and the current change required by the relevant module in the technology is different from the general requirements, requiring the load current to change from zero mA At the beginning, most fast response circuits start from a limited value such as ten microamperes. For this situation, it seems that there is not much difference, but in fact there is a big difference. If you start from zero current, the most direct manifestation is that the response speed will become Slower, if this situation is considered, the response of the general circuit is even worse, so the general fast response circuit is no longer applicable

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