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Single Channel Relay Board is a simple and convenient way to interface a relay for switching application in your project. Specifications Input supply 12VDC @ 42 mA On Board 5V Regulator provides 5V output Output SPDT Relay Relay specification 5 A @ 230 VAC Trigger level 2 ~ 9 VDC Header connector for connecting power and trigger voltage Relay operations status LED Power LED Tiny Design Screw terminal connector for easy relay output connections [ ]

This is a simple Fly back Transformer Driver Circuit Diagram and an efficient flyback driver for modern cylindrical rectified television flybacks . Many sites doesn't provide circuits driving these transformers, they simply say that they are bad. I don't agree. In fact I built this circuit. I spent a lot of time for finding resonant frequency (around 15Khz) and duty cycle. These transformers best work at around 90% duty cycle. You may notice corona breakdown at terminals and pfffff sound (as well as the ozone smell) when adjusting the off time trimmer to near 500-300 ohms. Of course it will work for other tipes of flyback as frequency and duty cycle have a large range.  Flyback Transformer Driver Circuit Diagram Frequency range can be increased using multiposition switch for other values of C3 capacitor ,for example 2 nF for 80KHz-200000KHz, but didn't found flybacks with so high resonant frequencies, in addition with higher values of c3 , eg 200nF, 2uF the frequency will ...

Versatile project has been designed to use in automotive application and industrial servo control application. This project provides all active necessary functions for closed loop servo system using Brushed DC Motor and potentiometer mounted on output shaft of DC Motor Gear. This project is ideally suited for almost any servo positioning application. Features POWER SUPPLY: 12-30V DC MOTOR LOAD: 800mA MAX P2: Position Potentiometer P1: Fed Back potentiometer couple with DC Gear Motor output shaft CN1: Power Input 12V-30V DC Motor: DC Motor [ ]

This is an example of efficiently driving a 1 watt white LED from a 12 volt battery using a buck converter. The LED could simply be connected with a series resistor to get the desired current, but the efficiency would be only 25% since the resistor would drop 9 volts while the LED only requires 3. The buck converter provides about 90% efficiency. The idea is to establish a circulating current through the inductor, diode and load, while the switch replenishes the lost load energy on each cycle. The duty cycle of the switch will be the output voltage divided by the input voltage, or about 3/12 (25%) in this case. It's actually a little greater since there is a small (2.2 ohm) resistor in series with the LED that drops about 0.5 volt, so the total load is about 3.7 volts and the duty cycle is around 31%. The circuit could also be used to charge AA batteries from a 12 volt source with adjustment to the duty cycle. The driver section uses a CMOS hex inverter (CD4069) where two of the in...

A very simple high efficiency Gu10 led light bulbs driver power supply circuit that can be used as a LED driver for GU10 lamp can be designed using this schematic circuit.This high efficiency Gu10 led light bulbs LED driver is designed to drive 12 V at 0.3 A from an input voltage range of 90 VAC to 265 VAC using few external components. This Gu10 led light bulbs driver power supply uses the LNK605DG IC from the Switch-II family by Power Integrations. The LNK605DG provides a sophisticated range of protection features including auto restart for open control loop and output short-circuit conditions. As you can see in the circuit diagram , this LED driver require few external electronic components .The LNK605DG Ic from Switch-II family is an integrated controller plus 700 V power MOSFET intended for use in LED driver or charger applications. Gu10 LED Light Bulbs Driver Circuit Diagram The rectified and filtered input voltage is applied to one end of the primary inding of T1 transformer and...

The Simple LED Driver Design TCA62735AFLG is a charge pump type DC DC Converter specially designed for constant current driving of white LED. IC can outputs LED current 120mA or more to 2.8-4.2V input. IC observes the power-supply voltage and the output voltage, and does an automatic change to the best of step up mode 1, 1.5 or 2 times. It is possible to prolong the battery longevity to its maximum.This IC is especially for driving back light white LED s in LCD of PDA, Cellular Phone, or Handy Terminal Equipment. LED Driver Design Circuit Diagram   This electronic project t LED driver is very simple and require few external electronic parts. Due of simplicity of this circuit this project not require additional explanations . If you want to change this design , please consult the manufactured datasheet. Some features of the TCA62735AFLG electronic project are Switching Frequency : 1MHz(Typ.), Output Drive Current Capability : Greater than 120mA , 4 Channels Built in Constant Sink C...

SSL3250A PHOTO FLASH LED DRIVER ELECTRONIC DIAGRAM These properties caused this device has long battery life and low power strain. Another features that this device has are protecting the battery and LED from overloading, trouble free operation such as overtemperature, over voltage, time-out function, undervoltage lockout, and feedback shorted protection.

There are times when you want to control a LED indicator light through the side of a plastic box, without wires and without drilling a hole in the box.  One example where this may be needed is in data collection systems.  These are often used out of doors in harsh environments and have to be hermetically sealed. Holes drilled in the side of the box for panel mounted LEDs or light pipes can often leak. Wireless LED Driver Circuit Diagram : The circuit below solves this problem by sending power to the LED through the plastic, using a magnetic coupling technique. The circuit below can route power through plastic enclosures as thick as ¼ inch.  The circuit will not work through metal boxes.  An expensive inductor, driven by a series resonant mode 125KHz oscillator, forms the power transmitter.  A similar inductor, wired as a 125KHz parallel resonant circuit, forms the power receiver.  A voltage doubler circuit at the receiver efficiently converts the collected AC into DC.  The circuit wil...

Using LTC3600 manufactured by Linear Technology, can be designed a very simple high efficiency LED driver with programmable dimming control . LTC3600 is a monolithic synchronous buck regulator whose output is programmed with just one external resistor. LED Driver Using LTC3600 Circuit Diagram This LED driver with programmable dimming control electronic project circuit diagram has a dimming current between 20 and 500mA. In this circuit diagram are used three LUXEON LXML-PWN1-0100 neutral white 350mA LEDs.

LOW NOISE WHITE LED DRIVER SYSTEM ELECTRONIC DIAGRAM The LM3570 evaluation board has a chip enable pin (active high logic) as well as a PWM (active high logic) pin which allows current sources to be turned on and off without completely disabling the part..The LM3570 is capable of supplying up to 80mA of current split between the regulated current sources and VOUT. The LM3570 comes in National’s LLP-14 package.