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。压电蜂鸣片由锆钛酸铅或铌镁酸铅压电陶瓷材料制成。长宁区制造AD16系列蜂鸣器公司
卷带)Molex45984-1162Molex50-57-9208Molex52901-0874Molex35979-0410Molex39-01-3083Molex43061-0004Molex45984-1172Molex50-57-9209Molex52901-0974Molex35979-0420Molex39-01-3089Molex43061-0005Molex45984-1182Molex50-57-9210Molex52901-1074Molex35979-0510Molex39-01-3103Molex43061-0006Molex45984-1422Molex50-57-9212Molex52901-1274Molex36503-0074Molex39-01-3109Molex43061-0008Molex45984-1432Molex50-57-9218Molex52901-1275Molex36509-0008Molex39-01-3123Molex43061-0010Molex45984-1442Molex50-57-9220Molex52901-1474Molex36509-0026Molex39-01-3129Molex43061-0012Molex45984-1452Molex50-57-9302Molex52921-0374Molex36509-0074Molex39-01-3143Molex43080-0001Molex45984-1462Molex50-57-9303Molex52921-0874Molex36510-0032Molex39-01-3149Molex43130-0001Molex45984-1472Molex50-57-9304Molex52943-1209Molex36511-0003Molex39-01-3183Molex43160-0102Molex45984-1482Molex50-57-9305Molex52965-0110Molex36528-0430Molex39-01-4030Molex43160-0103Molex45984-4112Molex50-57-9306Molex52968-0619Molex36528-0436Molex39-01-4030。长宁区制造AD16系列蜂鸣器公司如果蜂鸣器是作为高声压报警用的,普通的两引脚电感还不能满足要求。
5970-4105Molex50-57-9010Molex52893-2090Molex35978-0510Molex39-01-2240Molex43045-2215Molex45970-4115Molex50-57-9011Molex52893-2095Molex35978-0520Molex39-01-2241Molex43045-2218Molex45970-4305Molex50-57-9012Molex52893-2290Molex35978-0610Molex39-01-2245Molex43045-2219Molex45970-4315Molex50-57-9013Molex52893-2295Molex35978-0620Molex39-01-2245Molex43045-2400Molex45970-4385Molex50-57-9014Molex52893-2495Molex35978-0710Molex39-01-2246Molex43045-2401Molex45970-5115Molex50-57-9015Molex52893-2496Molex35978-0720Molex39-01-3022Molex43045-2402Molex45970-5715Molex50-57-9016(70066-0015)Molex52893-2695Molex35978-0810Molex39-01-3023Molex43045-2406Molex45971-0161Molex50-57-9017Molex52893-2890Molex35978-0820Molex39-01-3023Molex43045-2409Molex45971-0361Molex50-57-9018Molex52893-2895Molex35978-0910Molex39-01-3025Molex43045-2411Molex45971-2115Molex50-57-9020Molex52893-3090Molex35978-0920Molex39-01-3028Molex43045-2412Molex45971-2515Molex50-57-9023Molex52893-3095Molex35978-1010Molex39-01-3028Molex43045-2413。
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。
AD16-30MAD16-30系列蜂鸣器寿命长,耗能低,体积小,重量轻,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的声音信号。重要参数:额定绝缘电压:AC500V连续工作寿命:≥30000h开孔尺寸:φ,坚固耐用,耐磨损;内置螺钉式接线,更安全、方便;音量为10cm/100分贝发声形式:连续、断续电压代码21【AC/DC6V】22【AC/DC12V】23【AC/DC24V】24【AC/DC36V】25【AC/DC48V】26【AC/DC110V】27【AC/DC127V】28【AC/DC220V】33【AC/DC270V】29【AC/DC380V】34【AC/DC400V】35【AC/DC440V】30【AC/DC500V】31【AC220V】40【AC230V】41【AC240V】32【AC380V】。 发声形式:连续、断续 接线方式为接插式; 头部有:圆形,方形,矩形。长宁区制造AD16系列蜂鸣器公司
振动膜片在电磁线圈和磁铁的相互作用下,周期性地振动发声。长宁区制造AD16系列蜂鸣器公司
lex52806-0310Molex35725-2710Molex39-00-0221Molex43045-1201Molex44812-0026Molex503304-4210Molex52806-0410Molex35725-3310Molex39-00-0222Molex43045-1202Molex44812-0027Molex503308-3010Molex52806-0510Molex35725-3410Molex39-00-0223Molex43045-1206Molex44812-0028Molex503320-2560Molex52806-0610Molex35725-3410Molex39-00-0224Molex43045-1207Molex44812-0029Molex503320-3760Molex52806-0710Molex35725-3710Molex39-00-02781560T=39-00-0327(单粒)Molex43045-1209Molex44812-0030Molex503320-4160Molex52806-0810Molex35725-3910Molex39-00-02791561T=39-00-0331(单粒)Molex43045-1210Molex44828-1162Molex503395-0310Molex52806-0910Molex35725-4410Molex39-00-0281Molex43045-1211Molex44828-1162Molex503398-0891。长宁区制造AD16系列蜂鸣器公司
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