Circuit board of power adapter, power adapter and electric equipment
A power adapter and circuit board technology, which is applied in the modification of power electronics, electrical components, output power conversion devices, etc., can solve the problems of increasing electromagnetic coupling distribution parameters and deteriorating electromagnetic noise sources, etc.
Active Publication Date: 2021-05-18
GREE ELECTRIC APPLIANCES WUHAN +1
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Problems solved by technology
[0003] In specific product applications, the requirements for the size, frequency, and power density of the power adapter are getting higher and higher. Commonly, the power adapter is required to be small and portable. The more compact the layout space, the higher frequency and higher power density have a great impact on the electromagnetic compatibility characteristics of the power adapter, which makes the EMI (electromagnetic interference) problem of the power adapter more prominent. Specifically, it is reflected in the increased frequency. The high-frequency spectrum of electromagnetic noise deteriorates the electromagnetic noise source in the power adapter, and the increase in power density reduces the spacing between various electronic devices and increases the distribution parameters of electromagnetic coupling.
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[0031] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be described in detail below. Apparently, the described embodiments are only some of the embodiments of this application, not all of them. Based on the embodiments in the present application, all other implementation manners obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present application.
[0032] see figure 1 , figure 1 It is a schematic layout diagram of a circuit board of a power adapter shown according to an exemplary embodiment, as shown in figure 1 As shown, the circuit board 11 of the power adapter includes:
[0033] A transformer 101, a DC bus 102, a filter module 103, a chip and a radiator 104 arranged on the chip, the DC bus 102 is used to receive the DC output from the transformer 101, and the filter module 103 is used to control the ...
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The invention relates to a circuit board of a power adapter, the power adapter and electric equipment, and belongs to the technical field of circuit boards. The circuit board comprises a transformer, a direct current bus, a filtering module, a chip and a radiator configured on the chip, the direct current bus is used for receiving direct current output by the transformer, and the filtering module is used for filtering the direct current received by the direct current bus; the chip is formed between the transformer and the filtering module, so that the radiator on the chip is positioned between the transformer and the filtering module; and the radiator is connected with the direct current bus. According to the invention, the requirement for reducing EMI under the miniaturization design of the power adapter can be met.
Description
technical field [0001] The application belongs to the technical field of circuit boards, and in particular relates to a circuit board of a power adapter, a power adapter and electrical equipment. Background technique [0002] In the related art, a power adapter is used with electrical equipment, and many electrical equipment need to be charged through the power adapter, especially small electrical equipment, such as mobile phones, notebooks, and the like. [0003] In specific product applications, the requirements for the size, frequency, and power density of the power adapter are getting higher and higher. Commonly, the power adapter is required to be small and portable. The more compact the layout space, the higher frequency and higher power density have a great impact on the electromagnetic compatibility characteristics of the power adapter, which makes the EMI (electromagnetic interference) problem of the power adapter more prominent. Specifically, it is reflected in the...
Claims
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Patent Timeline
Login to View More IPC IPC(8): H02M1/44H02M1/32H02M1/14H05K7/20
CPCH02M1/44H02M1/32H02M1/14H05K7/2089
Inventor 曾颖宇梁思逴孙家文凌博万今明
Owner GREE ELECTRIC APPLIANCES WUHAN