43-0470Molex52610-0675Molex35328-0510Molex38780-0112Molex43045-0410Molex44475-2421Molex502443-0670Molex52610-0690Molex35328-0610Molex38780-0114Molex43045-0411Molex44476-1111Molex502443-0870Molex52610-0771Molex35362-0250Molex38780-0116Molex43045-0412Molex44476-1111Molex502443-1470Molex52610-0871Molex35362-0350Molex38780-0118Molex43045-0413Molex44476-1112Molex502494-0470Molex52610-0872Molex35362-0450Molex38780-0120Molex43045-0414Molex44476-1212Molex502494-0670Molex52610-0971Molex35362-0550Molex38780-0121Molex43045-0415Molex44476-3111Molex502494-0870Molex52610-0972Molex35362-0650Molex38780-0124Molex43045-0416Molex44476-3112Molex502494-1470Molex52610-1071Molex35362-0750Molex38780-0308Molex43045-0418Molex44478-1111Molex502570-0893Molex52610-1072Molex35362-0850Molex38780-0310Molex43045-0419Molex44478-1111Molex502578-0200Molex52610-1075Molex35362-0950Molex38783-6404Molex43045-0420Molex44478-1112Molex502578-0300Molex52610-1171Molex35362-1010Molex38783-6406Molex43045-0421Molex44478-1211Molex5。接通电源后1.5~15V直流工作电压多谐振荡器起振输出1.5~2.5kHZ的音频信号,阻抗匹配器推动压电蜂鸣片发声。普陀区订做AD16系列蜂鸣器价格实惠
34695-0100Molex38723-6502Molex41671-0011Molex39501-1016Molex501616-3585Molex52045-3045Molex34696-0100Molex38723-6504Molex41671-0023Molex39501-1017Molex501616-3985Molex52045-3245Molex34729-0080Molex38723-6506Molex41791-0774Molex39501-1018Molex501616-4185Molex52045-3645Molex34729-0120Molex38723-6510Molex41791-0832Molex39501-1019Molex501616-4585Molex52045-4045Molex34729-0121Molex38723-6702Molex41791-0834Molex39501-1020Molex501616-5185Molex52089-0519Molex34729-0160Molex38723-6703Molex41791-0853Molex39502-1002Molex501628-2191Molex52089-0719Molex34729-0200Molex38723-6705Molex41792-0511Molex39502-1003Molex501628-2791Molex52089-0819Molex34729-0201Molex38724-4908Molex41792-0515Molex39502-1004Molex501628-3191Molex52089-1219Molex34729-0202Molex38724-4912Molex41792-0530Molex39502-1005Molex501628-3391Molex52089-1419Molex34729-0203Molex38725-0004Molex41792-0532Molex39502-1006Molex501628-3591Molex52089-1619Molex34803-0211Molex38725-1114Molex42228-0494Molex39502-1007Molex501628-3991Molex52089-1719Mo。普陀区订做AD16系列蜂鸣器价格实惠一般会采用三脚抽头电感,一般为10倍的升压比,有些高声压110dB以上的可能要用小功率变压器实现升压。
AD16-22SMAD16-22系列闪光蜂鸣器采用高亮度纯色LED发光芯片为光源,寿命长,耗能低,体积小,重量轻,亮度高,可靠性好,造型美观和制造精巧,声音清脆警醒,适用于电力、电讯、机床、船舶、纺织、印刷、矿山机械等设备的线路中作指示信号、预告信号、事故信号及其他指示用信号。重要参数:额定绝缘电压:AC500V光亮度:≥100cd/m2连续工作寿命:≥30000h开孔尺寸:φ,可通过选用变径圈来实现φ25mm、φ30mm的孔径;遇到故障时,同时闪光发声,让您及时发现故障;闪光和发声可以根据现场要求选择一体式或者分开控制;发光体采用纯色超高亮LED芯片,色彩;零部件采用进口材料,坚固耐用,耐磨损;内置螺钉式接线,更安全、方便音量为10cm/80分贝发声形式:连续、断续。
ex38779-0409Molex43045-0222Molex44472-1254Molex502430-8010Molex52584-1079Molex35313-0360Molex38779-0462Molex43045-0224Molex44472-1255Molex502438-0000Molex52584-1279Molex35313-0360Molex38780-0102Molex43045-0400Molex44472-1653Molex502438-0100单粒=502438-0000卷带Molex52584-1479Molex35313-0460Molex38780-0103Molex43045-0400Molex44472-1654Molex502439-0400Molex52588-1875Molex35313-0560Molex38780-0104Molex43045-0401Molex44472-2050Molex502439-0400Molex52588-2075Molex35313-0660Molex38780-0105Molex43045-0401Molex44472-2051Molex502439-0400Molex52602-0579Molex35313-0760Molex38780-0106Molex43045-0402Molex44472-2452Molex502439-0600Molex52610-0571Molex35313-1060Molex38780-0107Molex43045-0406Molex44472-2454Molex502439-0800Molex52610-0671Molex35328-0260Molex38780-0108Molex43045-0407Molex44474-0631停产=44474-0611停产Molex502439-1200Molex52610-0671Molex35328-0360Molex38780-0109Molex43045-0408Molex44475-1021Molex502439-1400Molex52610-0672Molex35328-0410Molex38780-0110Molex43045-0409Molex44475-1821Molex50。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。
x38773-6403Molex43045-0209Molex44472-0311Molex502426-6010Molex52559-2852Molex35312-0560Molex38773-6403Molex43045-0211Molex44472-0314Molex502426-6410Molex52559-2872Molex35312-0660Molex38773-6404Molex43045-0212Molex44472-0401Molex502426-8010Molex52559-3052Molex35312-0710Molex38773-6405Molex43045-0212Molex44472-0452Molex502430-2010Molex52559-3072Molex35312-0860Molex38773-6406Molex43045-0213Molex44472-0454Molex502430-2610Molex52559-3252Molex35312-0960Molex38773-6410Molex43045-0214Molex44472-0502Molex502430-3010Molex52559-3272Molex35312-1010Molex38779-0010Molex43045-0215Molex44472-0654Molex502430-3210Molex52559-3652Molex35312-1060Molex38779-0236Molex43045-0218Molex44472-0655Molex502430-4010Molex52559-4052Molex35312-1160Molex38779-0258Molex43045-0219Molex44472-0854Molex502430-5010Molex52559-4072Molex35312-1410Molex38779-0304Molex43045-0220Molex44472-1053Molex502430-6010Molex52584-0279Molex35312-1560Molex38779-0387Molex43045-0221Molex44472-1054Molex502430-6410Molex52584-0879Molex35313-0260M。开孔尺寸:φ16mm; 通过声音来指示不同工作状态。徐州直供AD16系列蜂鸣器厂家
按键按下、开始工作、工作结束或是故障等等。这里对单片机在蜂鸣器驱动上的应用作一下描述。普陀区订做AD16系列蜂鸣器价格实惠
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,进而限制蜂鸣器的音量。技术实现要素:本发明所要解决的技术问题在于提供一种蜂鸣器驱动电路,该蜂鸣器驱动电路能够节省mcu资源以及改善蜂鸣器音质。为解决上述技术问题,本发明采用如下所述的技术方案:一种蜂鸣器驱动电路,其包括有电源控制电路、振荡控制电路和振荡回路,所述电源控制电路与mcu连接,mcu输出高、低电平控制所述电源控制电路导通或关断,当所述电源控制电路导通时,所述振荡控制电路控制所述振荡回路振荡并于蜂鸣器两端产生正弦波信号和第二正弦波信号。普陀区订做AD16系列蜂鸣器价格实惠
蜂鸣器驱动电路存在压差,有了振荡的条件,振荡回路30在振荡控制电路20开始振荡驱动蜂鸣器发声。当整个蜂鸣器驱动电路工作时,振荡回路30根据电感l1、第二电感l2和电容c1的参数产生对应的振荡频率,而电感l1、第二电感l2的波形变化引起了振荡控制回路20中的第三电感l3的波形同步变化,第三电感l3伴随产生对应的振荡频率控制第二开关管q2和第三开关管q3的开关状态(导通或截止),从而精确的锁定振荡回路30的振荡频率并稳定下来,在蜂鸣器两端产生产生标准正弦波,驱动蜂鸣器发声。图3示出了振荡时振荡回路的电容c1、电感l1和第二电感l2的波形,测量时,电容c1以端(与电感l1连接的一端)为正,第...