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Clap Switch Kit | Sound-Activated Bistable Circuit, DC 3-12V

Clap Switch Kit | Sound-Activated Bistable Circuit, DC 3-12V

Sound-activated switch DIY kit: clap once to turn the LED on and clap again to turn it off
Two-stage audio amplifier plus bistable trigger | DC 3-12V | 1.5mm fiberglass board | tinned pads
The electret microphone and the supply are both polarized, so watch the orientation when fitting them

滿千免運優惠(限郵寄和超商純取貨) on order

本賣場無實體店面，無提供自取服務，敬請見諒。 on order

NT$84
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Description
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Description

商品簡介

電路板採用1.5mm優質玻纖板全工藝加工，焊盤超大，導線較粗，元件佈局美觀，敷銅面採用噴錫處理。專門針對實訓進行了優化設計，方便承受多次反復拆焊，可以提高使用效率，品質優良，品質保證。可供各地區或學校的競賽、集訓、實訓使用。

 

電路說明

本電路主要由音訊放大電路和雙穩態觸發電路組成。Q4和Q2組成二級音訊放大電路，由MIC接收的音訊信號經C3耦合至Q4的基極，放大後由集電極直接饋至Q2的基極，在Q2的集電極得到一個負方波，用來觸發雙穩態電路。R14、C3將電路頻響限制在3kHz左右為高靈敏度範圍。電源接通時，雙穩態電路的狀態為Q3截止，Q1飽和，LED1不亮。當MIC接到控制信號，經過兩級放大後輸出一個負方波，經過微分處理後負尖脈衝通過D1加至Q1的基極，使電路迅速翻轉，LED1被點亮。當MIC再次接到控制信號，電路又發生翻轉，LED1熄滅。如果將LED燈回路與其它電路連接也可以實現對其它電路的聲控。

 

工作電壓

3-12V，可以用電池盒或其它直流電源供電，注意正負極性。

 

安裝注意事項

駐極體話筒有正負之分，與鋁殼相連的一端為負端。安裝時用剪下的電阻腳焊到話筒的兩極，再裝到電路板上。電源有正負分別，一般用杜邦線連接電源。

 

出貨清單

  • 拍手開關套件 x 1
Shipping & Payment

Delivery Options

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  • Postal delivery
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  • Tcat - Room Temp. (Collect on Delivery)
  • Draft quotation

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  • Credit Card
  • Tcat (Collect on Delivery)
  • Pay on 7-11 Store Pickup (C2C)

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