Power supply control system and method for device compatible with NFC (Near Field Communication) function
A power supply and control system technology, which is applied in transmission systems, near-field transmission systems, energy consumption reduction, etc., can solve the problems of wasting space and increasing costs, and achieve the effect of reducing costs and saving space
Active Publication Date: 2018-01-19
ZHONGTIAN BROADBAND TECH
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Problems solved by technology
In this way, if the design requires that the PCB board does not have an NFC function, the power supply of the SIM card of the mobile phone becomes a problem, and another circuit needs to be designed to supply power to the SIM card, which wastes space and increases the cost.
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[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation manners of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention, and those skilled in the art can obtain other accompanying drawings based on these drawings and obtain other implementations.
[0033] In order to make the drawing concise, each drawing only schematically shows the parts related to the present invention, and they do not represent the actual structure of the product. In addition, to make the drawings concise and easy to understand, in some drawings, only one of the components having the same structure or function is schematically shown, or only one of them is marked. Herein, "a" not only means "only one", but also means "more than one".
[0034] In one emb...
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The invention discloses a power supply control system and method for a device compatible with an NFC (Near Field Communication) function. The power supply control system comprises a first package which is set between an output power port of a power management unit and an input power port of an NFC chip; a second package which is set between the output power port of the NFC chip and a power input end of a subscriber identity module card of the mobile device; and a third package which is set between the output power port of the power management unit and a power input end of the subscriber identity module card of the mobile device. According to the power supply control system, corresponding devices are selectively mounted at the first package, the second package and the third package according to demands, thereby realizing demanded power supply. Through application of the system and method, a power supply mode for the device compatible with the NFC function can be realized. According to the power supply mode, the space can be saved, and the cost can be reduced.
Description
technical field [0001] The invention relates to the technical field of power supply control, in particular to a power supply control system and method for devices compatible with NFC functions. Background technique [0002] At present, many machines have NFC function (Near Field Communication, short-range wireless communication technology). NFC is a non-contact identification and interconnection technology jointly developed by Philips and Sony. It can be used in mobile devices, consumer electronics, NFC provides a simple, touch-based solution for short-range wireless communication between FC and smart control tools, allowing consumers to exchange information, access content and services simply and intuitively. [0003] figure 1 It is a circuit structure diagram of an NFC chip of a mobile phone with an NFC function in the prior art. Specifically, the NFC chip U1201 packaged in BGA (BallGrid Array, ball grid array packaging technology) passes through the E1 pin (HIF3), the E...
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IPC IPC(8): H04B5/00H04M1/02
CPCY02D30/70
Inventor 唐欣凌
Owner ZHONGTIAN BROADBAND TECH