充气泵电路图,充气泵MOS管应用-KIA MOS管

充气泵中的MOS管作用

充气(qi)泵中的MOS管主要(yao)用(yong)于控(kong)制(zhi)电机供(gong)电和气(qi)压调节(jie)，实现精准充气(qi)和智能控(kong)制(zhi)。

电(dian)机控制(zhi)充(chong)气泵(beng)通(tong)(tong)常(chang)配备电(dian)机驱动(dong)气泵(beng)，通(tong)(tong)过MOS管调(diao)节电(dian)流通(tong)(tong)断以控制(zhi)电(dian)机运转。

MOS管在充(chong)气过(guo)程中对电流进行动态调控，可精确调整充(chong)气速(su)度和气压(ya)值，避免(mian)胎压(ya)过(guo)高或过(guo)低导致安全隐患。

充气宝内(nei)置气压(ya)传感器，当达到预设压(ya)力值时自动(dong)关(guan)闭(bi)电(dian)源(yuan)。通过MOS管实(shi)现足压(ya)即(ji)停功(gong)能，保障使用安全。

采用低导通电(dian)阻的MOS管(guan)，减少电(dian)能损耗并延长(zhang)电(dian)池续航，支持(chi)多(duo)次充气(qi)需求(qiu)。

充气泵应用MOS管特性

1. 快速响应：MOSFET的(de)开(kai)关速度可达纳秒级(ji)（如IRF540N的(de)开(kai)关时(shi)间约30ns），确保电机高频启停时(shi)减少能量损(sun)耗。

2. 低导(dao)通损耗：采用沟(gou)道(dao)型(xing)MOSFET（如IRLZ44N），导(dao)通电阻（RDS(on)）仅8mΩ（数据来源(yuan)：Infineon技(ji)术手册），降低发热，提(ti)升充气效率。

3. PWM调(diao)速(su)：通过调(diao)节栅(zha)极(ji)脉冲(chong)宽度（频率通常为20kHz-100kHz），精(jing)准控(kong)制电机转速(su)，适应不同(tong)充气需(xu)求(qiu)（如轮胎充气与气垫床充气的压(ya)力差异）。

充气泵电路图

boost压型2串(chuan)锂电(dian)(dian)(dian)(dian)充电(dian)(dian)(dian)(dian)管理电(dian)(dian)(dian)(dian)路，5v输(shu)入升压后给两串(chuan)锂电(dian)(dian)(dian)(dian)充电(dian)(dian)(dian)(dian)，8脚无(wu)字芯片其实就是升压充电(dian)(dian)(dian)(dian)管理一(yi)体ic，右面(mian)有颗3.0vldo，给单(dan)片机供电(dian)(dian)(dian)(dian)。

充气泵电路图

充电电路

三(san)颗(ke)mos，上面一颗(ke)用于控(kong)制(zhi)电(dian)(dian)机启(qi)停，下面是锂(li)电(dian)(dian)保护电(dian)(dian)路的(de)充电(dian)(dian)和放电(dian)(dian)管，大贴片电(dian)(dian)阻(zu)是输出电(dian)(dian)流取(qu)样(yang)，左(zuo)面二极管是电(dian)(dian)机反电(dian)(dian)动势吸收。

充气泵电路图