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TI電子書 電源拓?fù)涫謨?/a>

標(biāo)簽： 電源

上傳時間： 2022-01-13

上傳用戶：qdxqdxqdxqdx

一種智能紅外避障自動掃地機(jī)器人的設(shè)計(jì)

研究一種智能掃地機(jī)器人。從硬件系統(tǒng)控制模塊設(shè)計(jì)到主要技術(shù)調(diào)試進(jìn)行了較詳細(xì)的闡述。以STM32單片機(jī)為控制核心與電機(jī)驅(qū)動、紅外線路徑識別模塊等相互協(xié)調(diào)應(yīng)用。進(jìn)行電路搭建和程序編寫。實(shí)現(xiàn)了智能掃地機(jī)器人紅外線避障和自動掃地功能,其清掃面積能達(dá)到約70%,清掃率約60%,很大程度受到自身機(jī)械機(jī)構(gòu)的限制,后期將對小車的機(jī)械結(jié)構(gòu)進(jìn)行完善。This paper studies an intelligent sweeping robot.From the hardware system control module design to the main technical debugging are described in detail.STM32 MCU is used as the control core to coordinate with motor drive and infrared path recognition module.Conduct circuit building and programming.The functions of infrared obstacle avoidance and automatic sweeping of intelligent sweeping robot are realized.Its cleaning area can reach about 70%and the cleaning rate is about 60%.Because it is limited by its own mechanical mechanism to a great extent,the mechanical structure of the car will be improved in the later stage.

標(biāo)簽： 掃地機(jī)器人

上傳時間： 2022-03-26

上傳用戶：

電流檢測電路中運(yùn)算放大器與ADC的設(shè)計(jì)

電學(xué)中的測量技術(shù)涉及范圍非常廣,電流測量在電學(xué)計(jì)量中占有非常重要的位置。如何精確地進(jìn)行電流測量是精密測量的一大難題。傳統(tǒng)的電流檢測電路多采用運(yùn)算放大芯片與片外電流檢測電路相結(jié)合的方式,電路集成度很低,需要較多的接口和資源才能完成對電路的檢測。本文把所有電路部分都集成在一塊芯片上,包括檢測電阻,運(yùn)算放大器電路及模擬轉(zhuǎn)數(shù)字轉(zhuǎn)換電路,從而在電路內(nèi)部可以進(jìn)行電流檢測,使電路更好的集成化。前置電路使用二級共源共柵結(jié)構(gòu)的運(yùn)算放大器,減小溝道長度調(diào)制效應(yīng)造成的電流誤差。10位SAR ADC中采用電容驅(qū)動能力強(qiáng)的傳輸門保證了模數(shù)轉(zhuǎn)化器的有效精度。比較器模塊采用再生鎖存器與遲滯比較器作為基礎(chǔ)單元組合解決精密測量的問題。本設(shè)計(jì)可以作為嵌入芯片內(nèi)的一小部分而檢測芯片中的微小電流1mA~100mA,工作電壓在1.8v左右,電流檢測精度預(yù)期達(dá)到10uA的需求。The measurement technology in electricity involves a wide range,and current measurement plays a very important position in electrical measurement.How to accurately measure current is a big problem in precision measurement. The traditional current detecting circuit adopts the combination of the operational amplifier chip and theoff-chip current detecting circuit, The circuit integration is very low, and more interfaces and resources are needed tocomplete the circuit detection.This topic integrates all the circuit parts into one chip, including detection resistance, operational amplifier circuit andanalog to digital conversion circuit. Highly integrated circuit makes the external resources on the chip more intensive,so that current detection can be carried out inside the circuit, so that the circuit can be better integrated. Thefront-end circuit of this project uses two-stage cascade operational amplifier and cascade tube to reduce the currenterror caused by channel length modulation effect. In 10-bit SAR ADC, the transmission gate with strong capacitivedriving ability ensures the effective accuracy of the analog-to-digital converter. Comparator module uses regenerativelatch and hysteresis comparator as basic unit to solve the difficult problem of precision measurement. This topic can beused as a small part of the embedded chip to detect the micro-current in the chip 1 mA~100 mA, the working voltageis about 1.8v, and the current detection accuracy is expected to reach the requirement of 10 uA.

標(biāo)簽： 電流檢測 電路 運(yùn)算放大器 adc

上傳時間： 2022-04-03

上傳用戶：

51單片機(jī)控制智能溫控風(fēng)扇多檔調(diào)節(jié)

說明：  51單片機(jī)控制智能溫控風(fēng)扇，多檔調(diào)節(jié)，pwd調(diào)速。包含源碼和電路圖(51 single chip computer control intelligent temperature control fan, multi-stage adjustment, PWD speed regulation. Contains source code and circuit diagrams)

標(biāo)簽： 51單片機(jī) 智能控制

上傳時間： 2022-05-17

上傳用戶：

電源拓?fù)涫謨?/a>

標(biāo)簽： 上傳時間： 2022-06-18