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AD sampling device, AD sampling method and electric appliance

A technology of sampling devices and electrical appliances, which is applied in the field of AD sampling, can solve the problems such as the inability to improve the resolution of AD sampling, and achieve the effect of high sampling requirements and improved resolution

Pending Publication Date: 2022-05-13
GREE ELECTRIC APPLIANCES INC
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Problems solved by technology

[0004] Aiming at the problem that the AD sampling resolution in the prior art can only be determined according to the design of the chip itself, and cannot improve the AD sampling resolution, the present invention proposes an AD sampling device, an AD sampling method and an electrical appliance

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  • AD sampling device, AD sampling method and electric appliance

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Embodiment Construction

[0029] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0030] Thus, a feature indicated in this specification will be used to describe one of the features of an embodiment of the present invention, rather than implying that every embodiment of the present invention must have the described feature. Furthermore, it should be noted that this specification describes a number of features. Although certain features may be combined to illustrate possible system designs, these features may also be used in other combinations not explicitly described. Thus, the illustrated combinations are not intended to be limiting unless oth...

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Abstract

The invention discloses an AD sampling device, an AD sampling method and an electric appliance, the AD sampling device comprises an AD sampling unit used for collecting a to-be-sampled signal, a power supply unit used for supplying power to the AD sampling unit, and a signal generation unit connected with the AD sampling unit, the signal generation unit is used for outputting a reference signal to the AD sampling unit, and the power supply unit is used for supplying power to the AD sampling unit. The AD sampling unit compares the signal to be sampled with the reference signal to obtain an AD value. Compared with the prior art, the AD sampling device and the AD sampling method provided by the invention have the advantages that the resolution of AD sampling can be improved without externally arranging other devices and circuits, and the acquisition requirement of analog signals with relatively high precision can be met.

Description

technical field [0001] The invention relates to the technical field of AD sampling, in particular to an AD sampling device, an AD sampling method and electrical appliances. Background technique [0002] The AD sampling resolution of the traditional embedded processor can only be determined according to the design of the chip itself. For example, if the AD sampling is 10 bits, it can only collect 1024 AD values, which can only meet the general situation of analog signal acquisition. The signal acquisition required by high resolution cannot be realized. For example, the acquisition resolution of a 10-bit AD for a temperature sensing package can only reach 0.1°C. If 0.05°C is required, it cannot be realized. The conventional way to improve AD sampling can only be an external high-precision ADC sampling chip, which is transmitted to the main chip through communication, which will occupy the SPI or IIC interface, which does not have much resources on the main chip. The circuit oc...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03M1/12
CPCH03M1/1245
Inventor 周葆林陈万兴裴文裕
Owner GREE ELECTRIC APPLIANCES INC
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