电池供电小夜灯电路--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
礼貌灯电路--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
双线灯闪光灯电路--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
自行车回安全光栅电路-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发光灯电路--220 Volts Flashing LampsEspecially designed for Christmas tree lampsReplaces old thermally-activated switchesParts: R1___________100K 1/4W Resistor R2,R5__________1K 1/4W Resistor
圆顶灯调光器电路--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
直流电动机可逆电路--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、光纤传感器结构原理 以电为基础的传统传感器是一种把测量的状态转变为可测的电信号的装置。它的电源、敏感元件、信号接收和处理系统以及信息传输均用金属导线连接,见图(a)。光纤传感器则是一种把被测量的状态转
多台电机独立控制 控制要求: 为两台异步电动机设计一个控制线路,其要求如下: (1)两台电动机互不影响地独立工作; (2)能同时控制两台电动机的起动与停止; (3)当一台电动机发生故障时,两台电动
直流电动机控制电路-DC Motor Control CircuitNotes: Here, S1 and S2 are normally open , push to close, press button switches. The diodes can be red or green and are there only to indicate direction
音量指示器--Sound Level IndicatorThis project uses an LM3915 bar-graph IC driving two sets of ten LEDs for a 30dB range. The circuit is unique because it has an additional range of 20dB provided by an
简单伺服测试仪电路--Simple Servo Testerclick here to download schematic in pdfThis is a simple servo tester which will comprehensively test the capabilities of almost any modern servo. It has two push
风扇控制器电路-Fan controlThis is a simple circuit that will do what you want I believe. R1 15k ohm resistor NTC Thermistor- 10k ohm, sold at Radio Shack in the states. P1 10k ohm potentiometer -
可调频闪灯电路--Adjustable Strobe LightThis one uses a much more powerful "horse shoe" Xenon tube which produces more light. You can also control the flash rate up to about 20Hz. Do not look
单极性步进电机控制器电路--Unipolar Stepper Motor ControllerThis is a very good integrated circuit. There is no need for any external glue logic to drive the circuit, there is only 2 pins to drive the