金山區(qū)接觸器AD16系列蜂鳴器性價(jià)比

    卷帶)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。無(wú)源電磁蜂鳴器工作原理是：交流信號(hào)通過(guò)繞在支架上的線包在支架的芯柱上產(chǎn)生一交變的磁通。金山區(qū)接觸器AD16系列蜂鳴器性價(jià)比

    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。普陀區(qū)ABBAD16系列蜂鳴器廠家直銷在陶瓷片的兩面鍍上銀電極，經(jīng)極化和老化處理后，再與黃銅片或不銹鋼片粘在一起。

    -0001Molex44428-1601Molex502382-0870Molex52559-0672Molex35189-0361Molex38770-0116Molex43031-0001Molex44428-1602Molex502382-0970Molex52559-0853Molex35189-0393Molex38770-0118Molex43031-0002Molex44428-1603Molex502382-1370Molex52559-0870Molex35191-0200Molex38770-0120Molex43031-0003Molex44428-1802Molex502382-1470Molex52559-1052Molex35196-0110Molex38770-0122Molex43031-0004Molex44428-2403Molex502382-1570Molex52559-1072Molex35196-0211Molex38770-0124Molex43031-0005Molex44432-0401Molex502386-0270Molex52559-1072Molex35196-0212Molex38770-0130Molex43031-0006Molex44432-0402Molex502386-0570Molex52559-1252Molex35196-0214Molex38770-0203Molex43031-0006Molex44432-0403Molex502386-0670Molex52559-1272Molex35196-0294Molex38770-0206Molex43031-0007散粒=43031-0001卷帶Molex44432-0601Molex502386-0770Molex52559-1452Molex35199-0400Molex38770-0207Molex43031-0008Molex44432-0602Molex502386-0870Molex52559-1472Molex35199-0500Molex38770-0209Molex43031-0009Molex44432-0801Molex502386-1070Molex52559-1853Molex35200-1000Mol。

    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。接通電源后1.5~15V直流工作電壓多諧振蕩器起振輸出1.5~2.5kHZ的音頻信號(hào)，阻抗匹配器推動(dòng)壓電蜂鳴片發(fā)聲。

    本實(shí)用新型涉及發(fā)聲設(shè)備技術(shù)領(lǐng)域，具體涉及微小型電磁式蜂鳴器。背景技術(shù)：目前，市場(chǎng)上的電磁式蜂鳴器小尺寸在**(長(zhǎng)*寬*高)，音壓在min75db，然而，隨著全球科技的日新月異，對(duì)產(chǎn)品尺寸的要求日益增多，市場(chǎng)上對(duì)電磁式蜂鳴器的要求是尺寸越來(lái)越小，音壓越來(lái)越高，以滿足更多的使用需要。技術(shù)實(shí)現(xiàn)要素：針對(duì)現(xiàn)有技術(shù)中存在的不足，本實(shí)用新型提供了微小型電磁式蜂鳴器，為解決上述技術(shù)問題，本實(shí)用新型提供的技術(shù)方案是：微小型電磁式蜂鳴器，包括同軸的上蓋和下蓋，上蓋呈圓柱體狀，下蓋呈立方體狀，下蓋的長(zhǎng)度和寬度均為3mm，上蓋呈開口朝下的蓋體結(jié)構(gòu)并形成有上容納腔，下蓋呈開口朝上的蓋體結(jié)構(gòu)并形成有下容納腔；下容納腔包括下底端面和下出口端面，下底端面上設(shè)置有底板，底板上設(shè)置有鐵芯，鐵芯與下出口端面等高，鐵芯外繞設(shè)有電磁線圈，電磁線圈外套設(shè)有粘磁，粘磁外套設(shè)有銅圈，銅圈內(nèi)還嵌設(shè)有振動(dòng)膜片，振動(dòng)膜片位于鐵芯的上方，銅圈外蓋合有上蓋，上容納腔與下容納腔相接形成有密封的腔室并使上蓋和下蓋接合，底板、鐵芯、電磁線圈、粘磁和銅圈均位于腔室內(nèi)，并充盈整個(gè)腔室；接合后的上蓋和下蓋整體的幾何形狀呈立方體狀，且高度為2mm。進(jìn)一步地。電磁式蜂鳴器 電磁式蜂鳴器由振蕩器、電磁線圈、磁鐵、振動(dòng)膜片及外殼等組成。普陀區(qū)ABBAD16系列蜂鳴器廠家直銷

用于計(jì)算機(jī)、打印機(jī)、復(fù)印機(jī)、報(bào)警器、電子玩具、汽車電子設(shè)備、電話機(jī)、定時(shí)器等電子產(chǎn)品中作發(fā)聲器件。金山區(qū)接觸器AD16系列蜂鳴器性價(jià)比

    振蕩回路30會(huì)根據(jù)第二開關(guān)管q2和第三開關(guān)管q3的狀態(tài)變化而改變振蕩回路，振蕩回路改變時(shí)，電容c1兩端的壓差由2*vcc變?yōu)?*vcc，增加了蜂鳴器兩端的壓差變化。本發(fā)明的有益效果：1.上述蜂鳴器驅(qū)動(dòng)電路由電感l(wèi)1、第二點(diǎn)l2和電容c1組成的振蕩回路驅(qū)動(dòng)蜂鳴器，同時(shí)由第三電感l(wèi)3和第二開關(guān)管q2、第三開關(guān)q3組成的振蕩控制電路對(duì)所述振蕩回路進(jìn)行穩(wěn)定的閉環(huán)控制，使振蕩回路工作時(shí)的振蕩波形穩(wěn)定，在蜂鳴器兩端產(chǎn)生標(biāo)準(zhǔn)正弦波，驅(qū)動(dòng)蜂鳴器發(fā)聲，無(wú)需mcu輸出pwm來(lái)驅(qū)動(dòng)蜂鳴器，從而減少mcu的io口占用，節(jié)省了主控mcu的資源；此外，標(biāo)準(zhǔn)正弦波作用于蜂鳴器兩端，蜂鳴器發(fā)出的聲音比由pwm方波驅(qū)動(dòng)的蜂鳴器發(fā)出的聲音效果更好，沒有雜音，從而改善蜂鳴器音質(zhì)。2.第二開關(guān)管q2、第三開關(guān)q3會(huì)同步振蕩頻率改變振蕩電路，從而引起蜂鳴器兩端更大的變化，增加了蜂鳴器兩端的壓差，進(jìn)而增強(qiáng)了蜂鳴器的音量。3.上述蜂鳴器驅(qū)動(dòng)電路包括電源控制電路10，電源控制電路10根據(jù)mcu產(chǎn)生簡(jiǎn)單的高低電平控制所述蜂鳴器驅(qū)動(dòng)電路是否對(duì)gnd形成回路從而控制蜂鳴器的工作狀態(tài)，確保了整個(gè)電路的可控性和有效性，整個(gè)控制過(guò)程可靠且迅速。金山區(qū)接觸器AD16系列蜂鳴器性價(jià)比