LED或燈脈沖發(fā)生器電路--LED or Lamp Pulser Astonishing effect4.5V supply Parts: R1,R2___________4K7 1/4W Resistors R3_____________22K 1/4W Resistor R4______________2M2 1/4W Resistor (See Notes)
電池供電小夜燈電路--Battery-powered Night Lamp 1,R2___________1M 1/4W Resistors R3_____________47K 1/4W Resistor (optional: see Notes) R4____________Photo resistor (any type, optional: see Notes
禮貌燈電路--Courtesy Light15 seconds delayed switch-offA good idea for bedroom lamps Parts: R1____________470R 1/2W Resistor R2____________100K 1/4W Resistor R3______________1M5 1/4W Resistor
雙線燈閃光燈電路--Two-wire Lamp FlasherIdeal to operate 3 to 24V DC existing on-circuit lampsLED operation is also possible Parts: R1______________6K8 1/4W Resistor R2____________270K 1/4W Resist
自行車回安全光柵電路-Bicycle back Safety LightFlashing 13 LED unit, 3V supplyAlso suitable for jogger/walkersParts: R1_____________10K 1/4W Resistor R2,R9,R10_____100K 1/4W Resistors R3-R8,R11-R
220V發(fā)光燈電路--220 Volts Flashing LampsEspecially designed for Christmas tree lampsReplaces old thermally-activated switchesParts: R1___________100K 1/4W Resistor R2,R5__________1K 1/4W Resistor
圓頂燈調(diào)光器電路--Dome Lamp DimmerThere are times when a little light inside the car would greatly assist one of the passengers but the dome light is too bright for safe driving. The dimmer circuit in
直流電動機可逆電路--DC Motor Reversing CircuitDescription: A DC motor reversing circuit using non latching push button switches. Relays control forward, stop and reverse action, and the motor cannot
1、光纖傳感器結(jié)構(gòu)原理 以電為基礎(chǔ)的傳統(tǒng)傳感器是一種把測量的狀態(tài)轉(zhuǎn)變?yōu)榭蓽y的電信號的裝置。它的電源、敏感元件、信號接收和處理系統(tǒng)以及信息傳輸均用金屬導(dǎo)線連接,見圖(a)。光纖傳感器則是一種把被測量的狀態(tài)轉(zhuǎn)
多臺電機獨立控制 控制要求: 為兩臺異步電動機設(shè)計一個控制線路,其要求如下: (1)兩臺電動機互不影響地獨立工作; (2)能同時控制兩臺電動機的起動與停止; (3)當(dāng)一臺電動機發(fā)生故障時,兩臺電動