Switching Mode Power Supply with Load Balancing Function
A technology of power supply device and load balancing, which is applied in the direction of measurement device, data processing power supply, measurement flow/mass flow, etc. It can solve problems such as failure to pass customer or official verification, lengthen design time, increase design complexity, etc.
Active Publication Date: 2017-11-10
GIGA BYTE TECH CO LTD
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Problems solved by technology
[0003] Although many power supply devices adopt flexible switching technology (or called resonant design), these power supply devices only use a single resonant power adapter (Resonant Power Adapter), so the utilization is relatively limited
However, if you want to use multiple resonant power adapters in a power supply device to increase availability, the following problems will occur: (1) The load borne by the resonant power adapter is unbalanced, making the power of the low-load power adapter The operating frequency of the switch is too high, resulting in conducted interference noise, which cannot pass customer or official verification; (2) In accordance with point (1), if passive components that suppress noise are used to filter out conducted interference noise, in addition to increasing the design In addition to complexity and prolonging the design schedule, it will also generate additional certification costs and affect the product launch schedule
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[0027] The technical terms in the following explanations refer to the customary terms in this technical field. If some terms are explained or defined in this manual, the explanations of some terms shall be based on the descriptions or definitions in this manual. In addition, the prepositional terms "upper", "lower", "on", etc. mentioned in this specification, on the premise that the implementation is possible, the meaning may include directly or indirectly "upper" on something or a reference object. ", "under", and directly or indirectly "on" something or a reference object, the so-called "indirect" refers to the existence of an intermediate object or physical space in between; when referring to terms such as "adjacent" and "between", When it is possible to implement, the meaning may include the existence of other intermediate objects or spaces between two objects or two reference objects, as well as the absence of other intermediate objects or spaces. Furthermore, the followi...
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The present invention relates to a switchable power supply device with a load balancing function, comprising: a first resonant power adapter for supplying power to a first electronic device under a first setting and a second setting; The second resonant power adapter is used to supply power to a second electronic device under the second setting; and a power adapter load regulator, the power adapter load regulator includes a switching circuit and a setting circuit, when switching When the circuit works under the first setting, the switching circuit is electrically connected to the first resonant power adapter and the second electronic device, so that the first resonant power adapter supplies power to the first electronic device and the second electronic device, and when switching When the circuit works under the second setting, the switching circuit is electrically connected to the second resonant power adapter and the second electronic device, so that the second resonant power adapter supplies power to the second electronic device. At this time, the first resonant power adapter No power is supplied to the second electronic device.
Description
【Technical field】 [0001] The invention relates to a power supply device, in particular to a switching power supply device with load balancing function. 【Background technique】 [0002] Power supplies are necessary for electronic products. However, due to the development of electronic products in the direction of miniaturization and light weight, traditional linear power supplies are gradually eliminated due to factors such as large size, heavy weight, and low efficiency, and replaced by switching power supplies (Switching Power Supply). Early switching power supply adopts hard switching (HardSwitching). When the power switch is switched, the cross voltage of the power switch and the current passing through the power switch will exist at the same time, which means that the power switch will switch when it is on or off. Loss, and the switching loss will increase with the increase of the switching frequency, which will lead to the disadvantages of the switching power supply, s...
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IPC IPC(8): G06F1/26
Inventor 杨闵渊黄建翔吴信宏蔡连成
Owner GIGA BYTE TECH CO LTD