Unlock instant, AI-driven research and patent intelligence for your innovation.

MCU sampling circuit and sampling method

A technology of sampling circuit and filter circuit, which is applied in the direction of logic circuit, electrical components, reliability improvement and modification, etc., can solve the problems of large circuit power consumption and long MCU processing time, and achieve the effect of reducing processing time and power consumption

Inactive Publication Date: 2015-06-17
CHENGDU SHENGERJIA SCI & TECH
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the MCU sampling circuit adopts ADC (for voltage sampling) sampling circuit and sampling method, the MCU processing time is long, and the circuit consumes a lot of power

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • MCU sampling circuit and sampling method
  • MCU sampling circuit and sampling method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] In order to make the object, technical solution and advantages of 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.

[0017] Any feature disclosed in this specification (including any appended claims, abstract and drawings), unless expressly stated otherwise, may be replaced by alternative features which are equivalent or serve a similar purpose. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.

[0018] Such as figure 1 As shown, in this specific embodiment, the interrupt trigger method is adopted, and the specific circuit structure is as follows, including a triangular wave generator, LED light-emitting tube D1, light-emitting receiving h...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides an MCU sampling circuit and a sampling method. By adopting an interruption triggering method, the MCU sampling circuit specifically and structurally comprises a triangular wave generator, an LED D1, a light-emitting receiving head Q1, a filter circuit, an operational amplifier U1 and a holding capacitor C2 which are connected in sequence. Voltage is converted into pulse, and interruption triggering is adopted, so that MCU processing time is shortened, and the power consumption of the circuit is greatly reduced. Under the situation that sampling is performed for 30 times per second, two AA-sized batteries can be used for more than six months.

Description

technical field [0001] The invention relates to an MCU sampling circuit and a sampling method, in particular to a circuit structure and a sampling method suitable for MCU sampling processing. Background technique [0002] The sampling circuit has an analog signal input, a control signal input and an analog signal output. The purpose of this circuit is to receive an input voltage at a specified time and hold that voltage at the output until the next sampling begins. The sampling circuit usually consists of an analog switch, a holding capacitor and a non-inverting circuit with a unity gain of 1. Sampling works in one of the two states of sample state and hold state. In the sampling state, the switch is turned on, and it tracks the level change of the analog input signal as fast as possible until the hold signal arrives; in the hold state, the switch is turned off, and the tracking process stops, and it keeps on before the switch is turned off The instantaneous value of the ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H03K19/00H03K19/003
Inventor 杨凌云
Owner CHENGDU SHENGERJIA SCI & TECH