0Molex35150-0290Molex38731-7204Molex42819-3233Molex39530-0509Molex501876-2040Molex52207-1160Molex35150-0292Molex38731-8914Molex42819-3242Molex39530-5006Molex501876-2240Molex52207-1185Molex35150-0292Molex38731-9112Molex42819-4212Molex39530-5007Molex501876-2440Molex52207-1260Molex35150-0300Molex38731-9308Molex42819-4222Molex39531-0002Molex501876-2440Molex52207-1285Molex35150-0309Molex38731-9503Molex42819-4232Molex39531-0003Molex501876-2640Molex52207-1385Molex35150-0310Molex38731-9802Molex42819-5212Molex39531-0004Molex501876-2840Molex52207-1460Molex35150-0319Molex38731-9903Molex42819-6212Molex39531-0005Molex501876-3240Molex52207-1485Molex35150-0390Molex38732-1309Molex42819-6232Molex39531-1002Molex501876-3440Molex52207-1560Molex35150-0390Molex38732-2105Molex42820-2212Molex39531-1003Molex501876-3640Molex52207-1585Molex35150-0392Molex38732-2304Molex42820-2213Molex39531-1004Molex501876-3840Molex52207-1590Molex35150-0392Molex38732-2502Molex42820-2222Molex39531-1005Molex501876-4040Molex52207-。用于计算机、打印机、复印机、报警器、电子玩具、汽车电子设备、电话机、定时器等电子产品中作发声器件。宝山区施耐德AD16系列蜂鸣器性价比

60Molex35150-0393Molex38733-6402Molex42820-2232Molex39531-1006Molex501912-1590Molex52207-1685Molex35150-0394Molex38733-6403Molex42820-2243Molex39531-1008Molex501912-2190Molex52207-1785Molex35150-0400Molex38734-4902Molex42820-3212Molex39531-1010Molex501912-2390Molex52207-1860Molex35150-0409Molex38734-5106Molex42820-3213Molex39531-1012Molex501912-2590Molex52207-1885Molex35150-0410Molex38735-3708Molex42820-3222Molex39531-1017Molex501912-2790Molex52207-1985Molex35150-0414Molex38735-3902Molex42820-4212Molex39-53-2034Molex501912-3390Molex52207-2060Molex35150-0419Molex38739-0001Molex42820-4213Molex39-53-2035Molex501912-3590Molex52207-2085Molex35150-0600Molex38739-0002Molex42820-4222Molex39-53-2044Molex501912-3790Molex52207-2185Molex35150-0609Molex38739-0075Molex42820-4232Molex39-53-2045Molex501912-3990Molex52207-2260Molex35150-0610Molex38739-0096Molex42820-4242Molex39-53-2054Molex501912-3990Molex52207-2285Molex35150-0619Molex38739-0103Molex42820-5212Molex39-53-2055Molex501912-4190Molex52207。宝山区施耐德AD16系列蜂鸣器性价比单片机应用的设计上,很多方案都会用到蜂鸣器,大部分都是使用蜂鸣器来做提示或报警。

散/无料带=卷39-00-0083RS有货)Molex43045-0812Molex44764-1003Molex502790-4091Molex52745-1197Molex35507-0700Molex39-00-0089Molex43045-0813Molex44764-1201Molex502790-5091Molex52745-1296Molex35507-0800Molex39-00-0090Molex43045-0814Molex44764-1202Molex502790-6091Molex52745-1296Molex35507-0800Molex39-00-0095Molex43045-0815Molex44764-1401Molex502790-6491Molex52745-1297Molex35507-0900Molex39-00-0096Molex43045-0816Molex44764-1402Molex502790-8091Molex52745-1397Molex35507-1000Molex39-00-0120Molex43045-0818Molex44764-1601Molex50-29-1031Molex52745-1496Molex35507-1000Molex39-00-0121Molex43045-0819Molex44764-1602Molex50-29-1061Molex52745-1497Molex35507-1100Molex39-00-0123Molex43045-0820Molex44764-1802Molex50-29-1409Molex52745-1597Molex35507-1200Molex39-00-0125Molex43045-0821Molex44764-2401Molex50-29-1608Molex52745-1696Molex35507-1300Molex39-00-0126Molex43045-0822Molex44764-2402Molex50-29-1649Molex52745-1697Molex35507-1400Molex39-00-0127Molex43045-0823Molex44764-2403Molex50-29-1758Molex52745-1797Mol。
PWM输出口直接驱动蜂鸣器方式由于PWM只控制固定频率的蜂鸣器,所以可以在程序的系统初始化时就对PWM的输出波形进行设置。首先根据SH69P43的PWM输出的周期宽度是10位数据来选择PWM时钟。系统使用4MHz的晶振作为主振荡器,一个tosc的时间就是μs,若是将PWM的时钟设置为tosc的话,则蜂鸣器要求的波形周期500μs的计数值为500μs/μs=(2000)10=(7D0)16,7D0H为11位的数据,而SH69P43的PWM输出周期宽度只是10位数据,所以选择PWM的时钟为tosc是不能实现蜂鸣器所要的驱动波形的。这里我们将PWM的时钟设置为4tosc,这样一个PWM的时钟周期就是1μs了,由此可以算出500μs对应的计数值为500μs/1μs=(500)10=(1F4)16,即分别在周期寄存器的高2位、中4位和低4位三个寄存器中填入1、F和4,就完成了对输出周期的设置。再来设置占空比寄存器,在PWM输出中占空比的实现是通过设定一个周期内电平的宽度来实现的。当输出模式选择为普通模式时,占空比寄存器是用来设置高电平的宽度。250μs的宽度计数值为250μs/1μs=(250)10=(0FA)16。只需要在占空比寄存器的高2位、中4位和低4位中分别填入0、F和A就可以完成对占空比的设置了,设置占空比为1/2duty。以后只需要打开PWM输出。
蜂鸣器的作用 蜂鸣器是一种一体化结构的电子讯响器,采用直流电压供电。

006Molex45750-1212Molex50394-8100单粒=50394-8051卷带Molex52892-2695Molex35977-0400Molex39-01-2145Molex43045-2009Molex45750-3111Molex50394-8200Molex52892-2890Molex35977-0490Molex39-01-2145Molex43045-2010Molex45750-3111Molex50394-8400Molex52892-2895Molex35977-0500Molex39-01-2146Molex43045-2011Molex45750-3112Molex50397-8000Molex52892-3090Molex35977-0590Molex39-01-2160(5557-16R)Molex43045-2012Molex45750-3211Molex50398-8000Molex52892-3095Molex35977-0600Molex39-01-2160(5557-16R)Molex43045-2013Molex45750-3212Molex50398-8000Molex52893-0895Molex35977-0690Molex39-01-2160(5557-16R)Molex43045-2014Molex45802-0215Molex50419-9001Molex52893-0896Molex35977-0700Molex39-01-21615559-16PMolex43045-2015Molex45802-0227Molex50420-8000Molex52893-1090Molex35977-0790Molex39-01-2165Molex43045-2016Molex45802-1211Molex50516-8041Molex52893-1095Molex35977-0800=35977-0890Molex39-01-2166Molex43045-2018Molex45802-1223Molex50516-8041Molex52893-1295Molex35977-0900Molex39-01-2180Molex43045-2019Molex45830-0215Molex5。源蜂鸣器没有内部驱动电路,有些公司和工厂称为讯响器,国标中称为声响器。淮安配电箱AD16系列蜂鸣器推荐厂家
压电蜂鸣片是将高压极压化后的压电陶瓷片黏贴于振动金属片上。宝山区施耐德AD16系列蜂鸣器性价比
ex52746-2070Molex35718-0810Molex39-00-0211Molex43045-1019Molex44812-0006Molex503151-5009Molex52746-2071Molex35718-0910Molex39-00-0212Molex43045-1020Molex44812-0008Molex503154-1090Molex52760-2079Molex35718-1010Molex39-00-0213Molex43045-1021Molex44812-0009Molex503154-1290Molex52793-0470Molex35718-1210Molex39-00-0214Molex43045-1022Molex44812-0010Molex503154-1690Molex52793-0570Molex35718-1510Molex39-00-0215Molex43045-1023Molex44812-0012Molex503154-2090Molex52793-0670Molex35718-2110Molex39-00-0215Molex43045-1024Molex44812-0020Molex503154-2490Molex52793-0870Molex35720-1210Molex39-00-0216Molex43045-1025Molex44812-0021Molex503154-2890Molex52793-0970Molex35720-1610Molex39-00-0217Molex43045-1026Molex44812-0022Molex503159-0800Molex52793-1070Molex35725-1810Molex39-00-0218Molex43045-1027Molex44812-0023Molex503182-0852Molex52793-1270Molex35725-2411Molex39-00-0219Molex43045-1028Molex44812-0024Molex503182-0852Molex52793-1470Molex35725-2610Molex39-00-0220Molex43045-1200Molex44812-0025Molex503182-0892。宝山区施耐德AD16系列蜂鸣器性价比
本发明涉及家电声音处理领域,尤其涉及一种蜂鸣器驱动电路。背景技术:现在蜂鸣器家电领域和工控领域的应用越来越,小到用作简单家电的提示音蜂鸣,大到中央空调的提示音乐,蜂鸣器作为一种人机交互的重要信息传递元器件,在相当一段时间内必当占据重要地位。目前,蜂鸣器的驱动方案主要是采用mcu直接输出pwm方波来驱动,这种方式目前使用较广,但也有一些无法避免的缺点:1.占用主控mcu资源,使得额外增加蜂鸣器模块时不利于使用和调试。2.采用pwm方波驱动的蜂鸣器产生的声音音色单一、音调尖锐、音质差。3.在有限且固定的供电电压的情况下,采用直接pwm波驱动的蜂鸣器两端压差受到供电电压的限制,进而限制蜂鸣器...