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A kind of power supply circuit and its power supply unit and power supply method

A power supply circuit and circuit technology, applied in battery circuit devices, electrical components, circuit devices, etc., can solve the problems of large area, low system efficiency and high cost, and achieve the effect of high efficiency

Active Publication Date: 2016-04-13
CHENGDU MONOLITHIC POWER SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a large-capacity capacitor bank will occupy a large area on the circuit board, and the cost is also high
In addition, in order to adapt to the large input voltage range of the input terminal, a buck-boost conversion circuit is often used to supply power to the load, and the system efficiency is low

Method used

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  • A kind of power supply circuit and its power supply unit and power supply method
  • A kind of power supply circuit and its power supply unit and power supply method
  • A kind of power supply circuit and its power supply unit and power supply method

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Embodiment Construction

[0024] Specific embodiments of the present invention will be described in detail below, and it should be noted that the embodiments described here are only for illustration, not for limiting the present invention. The present invention is intended to cover all possible equivalent or alternative embodiments defined by the claims and within the spirit of the invention defined by the claims. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one of ordinary skill in the art that these specific details need not be employed to practice the present invention. In the embodiments, well-known circuits, materials or methods have not been described in detail in order to avoid obscuring the present invention. In order to clearly illustrate the present invention, detailed descriptions of some specific structures and functions are simplified herein. In addition, simil...

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PUM

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Abstract

A power supply circuit and its power supply unit and power supply method. The invention discloses a power supply circuit. The power supply circuit may include a power input terminal, a capacitor module, a first voltage conversion module and a second voltage conversion module. The first voltage conversion module may have a first terminal and a second terminal, wherein the first terminal is coupled to the power input terminal, and the second terminal is coupled to the capacitor module. The second voltage conversion module may have an input terminal and an output terminal, wherein the input terminal of the second voltage conversion module is coupled to the power supply input terminal, and the output terminal of the second voltage conversion module is coupled to the load for supplying power to the load. The power supply circuit can maintain power supply for a period of time when the power supply is disconnected, and has the advantages of small size of the capacitor module and high power supply efficiency.

Description

technical field [0001] The present invention relates to a power supply system, specifically but not limited to a power supply circuit, a power supply unit and a power supply method related to a solid-state drive system. Background technique [0002] A solid-state drive (SSD) device is a data storage device using a solid-state memory, such as a flash memory device for high-density data storage. An SSD device may include a memory unit that stores data and a power supply unit that reads data from and writes data to the memory unit. Therefore, the power supply system of the SSD device needs multiple power supplies for providing energy to multiple units. [0003] For the power supply system of the SSD device, when the power input terminal is blocked or floated, in order to prevent data loss, it is necessary to continue to provide energy to the SSD device for a period of time to safely store data. One solution is to connect a series of storage capacitors across the input to prov...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M3/10
CPCH02J7/345H02M1/008
Inventor 赖鹏捷姜剑
Owner CHENGDU MONOLITHIC POWER SYST
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