奉贤区控制箱AD16系列蜂鸣器厂家 上海喆和机电供应

    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-。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。奉贤区控制箱AD16系列蜂鸣器厂家

    振荡控制电路还包括有第四电阻，所述第四电阻的端与电源连接，所述第四电阻的第二端分别与所述第二电阻的端、第三电阻的端、电感的端和第二电感的端连接。推荐地，所述第二电阻、第三电阻的阻值相同。推荐地，所述电感、第二电感和第三电感的电感相同。推荐地，所述第二开关管、第三开关管为双极型晶体管或mos管。推荐地，若所述第二开关管、第三开关管为双极型晶体管，所述第二开关管、第三开关管为npn型三极管，所述第二开关管的端为集电极，所述第二开关管的第二端为发射极，所述第二开关管的控制端为基极，所述第三开关管的端为集电极，所述第三开关管的第二端为发射极，所述第三开关管的控制端为基极。推荐地，所述蜂鸣器为压电式蜂鸣器。本发明的有益技术效果在于：上述蜂鸣器驱动电路包括振荡控制电路和振荡回路，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，振荡控制电路对所述振荡回路进行稳定的闭环控制，使振荡回路工作时的振荡波形稳定，在蜂鸣器两端产生标准正弦波，驱动蜂鸣器发声，无需mcu输出pwm来驱动蜂鸣器，从而减少mcu的io口占用，节省了主控mcu的资源；此外，标准正弦波作用于蜂鸣器两端，蜂鸣器发出的声音柔和清脆。奉贤区控制箱AD16系列蜂鸣器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。

    578-0400Molex52610-1271Molex35362-1050Molex38783-6407Molex43045-0422Molex44478-3111Molex502578-0500Molex52610-1272Molex35362-1150Molex38789-0050Molex43045-0423Molex44478-3112Molex502578-0600Molex52610-1275Molex35362-1250Molex38789-0222Molex43045-0424Molex44485-1211Molex502578-0800Molex52610-1371Molex35362-1450Molex38789-0310Molex43045-0425Molex44485-1212Molex502578-1000Molex52610-1471Molex35362-1550Molex38969-0003Molex43045-0426Molex44485-3212Molex502578-1200Molex52610-1472Molex35362-2050Molex39-00-0021Molex43045-0427Molex44499-0003Molex502578-1400Molex52610-1475Molex35363-0260Molex39-00-0022Molex43045-0428Molex44499-0007Molex502578-1500Molex52610-1494Molex35363-0360Molex39-00-0023(5479PBT)Molex43045-0600Molex44499-0049Molex502579-0000Molex52610-1571Molex35363-0360Molex39-00-0029Molex43045-0601Molex44499-0088Molex502579-0000Molex52610-1671Molex35363-0360Molex39-00-0030Molex43045-0602Molex44516-0009(PK-44516-004)Molex502584-0260Molex52610-1672Molex35363-0460Molex39-00-0038。

    1Molex503700-0100Molex52830-4422Molex35760-7200Molex39-01-2045Molex43045-1613Molex45520-0001Molex50-37-2043Molex52837-1679Molex35857-2349Molex39-01-2045Molex43045-1614Molex45546-0001Molex50372-8000Molex52852-0470Molex35922-8011Molex39-01-2046Molex43045-1617Molex45549-0001Molex50372-8000Molex52852-0570Molex35922-9002Molex39-01-2046Molex43045-1618Molex45558-0003Molex50372-8100Molex52852-0770Molex35953-0210Molex39-01-2046Molex43045-1619Molex45559-0002Molex50-37-5023（5264-02Molex52852-0870Molex35953-0220Molex39-01-2060Molex43045-1620Molex45560-0160Molex50-37-5033Molex52852-0970Molex35955-0110Molex39-01-2061（5559-06P）Molex43045-1621Molex45560-0161Molex50-37-5043Molex52852-1670Molex35955-0120Molex39-01-2065Molex43045-1623Molex45570-3000Molex50-37-5043Molex52852-1870Molex35955-0310Molex39-01-2065Molex43045-1624Molex45570-3002Molex50-37-5053Molex52885-0274Molex35955-0320Molex39-01-2066Molex43045-1626Molex45570-3050Molex50-37-5053。线端留下5厘米作引线，用透明胶布把线圈粘好，以免线圈松开再用胶布把它粘在一个盒子上，电磁铁就做好了。

    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。电磁无源蜂鸣器和压电无源蜂鸣器怎样与电子线路中IC输出引脚连接？奉贤区控制箱AD16系列蜂鸣器厂家

AD16-30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。奉贤区控制箱AD16系列蜂鸣器厂家

    结构原理蜂鸣器1.压电式蜂鸣器压电式蜂鸣器主要由多谐振荡器、压电蜂鸣片、阻抗匹配器及共鸣箱、外壳等组成。有的压电式蜂鸣器外壳上还装有发光二极管。多谐振荡器由晶体管或集成电路构成。当接通电源后(),多谐振荡器起振,输出，阻抗匹配器推动压电蜂鸣片发声。蜂鸣器压电蜂鸣片由锆钛酸铅或铌镁酸铅压电陶瓷材料制成。在陶瓷片的两面镀上银电极，经极化和老化处理后，再与黄铜片或不锈钢片粘在一起。2.电磁式蜂鸣器电磁式蜂鸣器由振荡器、电磁线圈、磁铁、振动膜片及外壳等组成。接通电源后，振荡器产生的音频信号电流通过电磁线圈，使电磁线圈产生磁场。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。 奉贤区控制箱AD16系列蜂鸣器厂家