Secret Diagram

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 [...]

An entity–relationship diagram ...Entity Relationship Diagramentity relationship diagramEntity-Relationship diagramEntity Relationship Diagram... Entity-Relationship ...Entity Relationship DiagramsEntity Relationship DiagramEntity-Relationship Diagram ...ER Diagram Templ [...]

Telephone line Based Audio Muting and Light-On Circuit. Very often when enjoying music or watching TV at high audio level, we may not be able to hear a telephone ring and thus miss an important incoming phone call. To overcome this situation, the circuit presented here can be used. The circuit would automatically light a bulb on arrival of a telephone [...]

Dear freinds you know about i pods ?I pods had been since their beginning in 2001, Apple iPods have been the product of choice for individuals who listen to digital music. Recently, Apple has branched out & allowed their iPods to display pics & play videos, but the music aspect of this digital media player is what lures hoards of people in [...]

A close call on the road can really focus your mind on the importance of having a battery monitor in a car. I had been enjoying a pleasant week of travelling around the countryside at a leisurely pace and taking in the beautiful scenery each day. It wasn't until the final day, with the big rush to return home, that I had to drive at night.My home is [...]

Used ICs: TDA9352PS/N21/3-OTP, 24C04, LA6510, 346VF2(Infrared sensor), KA5Q0765R | KA5Q0740RT(120v) | KA5Q0765RT (220V), KA7632, FCA173B(FBT), NJM2235D, AN7522N, MSP3425G-B7 and TDA6107Q [NTSC system – North America, South Central America and Mexico]FOCUS Adjustment1. Input a black and white signal.2. Adjust the tuning control for the clearest [...]

This is a Simple LED light Organ Circuit Diagram. This is a fun circuit that can be at parties, for example. The four LEDs flash to the beat of the music. The light organ responds using a microphone to sound.T1 amplifies the signal from MIC. The sensitivity can be adjusted by P1. T4 controls the LEDs. These are preferably LED's with a high light [...]

[...]

 3 in 1 - LED Night Light, LED Emergency Light and LED Flashlight; Length: 4.0". The Night Light has an Automatic Sensor which allows On at Dusk and Off at Dawn. The Emergency Light features an 8 Hour Battery Back Up. Convenient White Light Flashlight.The light is not terribly sharp-witted but it's first-class sufficient to facilitate you won't [...]

Here is a circuit of simple low/high voltage cut circuit.Various safety circuit (low/high voltage cut) using IC.But in this circuit we are using two transistor for this circuit.As we saw that the entire circuit is build using two transistor and very few of other components.Transistors are used to drive the relay.And also transistor T1 and T2 used to [...]

Those who are in the market for auto sound systems are probably well aware of the many decisions that need to be made throughout the process. Gone are the days when you went in, pointed to a box and walked out with all the pieces, parts, and components you would ever need for a really kickin' sound. The truth of the matter is that there are many pieces [...]

In this post we learn regarding three interesting transformerless power supply circuits for illuminating LEDs from mains that uses minimum number of components Circuit 1A capacitor must be having a rating of more than 200V and should be having dialectic of metallize polyester or poly poplin. A resistor 1K is employed to limit the in rush current [...]

This is the Simple Simulated inductor Circuit Diagram. In the this circuit With a constant current excitation, the voltage dropped across an inductance in-(in creases with frequency. Thus, an active device whose output increases with frequency can be characterized as an inductance.  Simple Simulated inductor Circuit DiagramThe circuit yields [...]

The series of light switches this time slightly different from the voltage of work. The series of light switches can work directly on the AC power network. Light switches are using the main component of TRIAC and LDR. The circuit is very simple and the components were sold in the market.If you want a light reception sensitivity of this circuit can [...]

The circuit was designed to create a spare and reserve power source with the use of batteries during the absence of power from the mains.BD139 – NPN power transistor used for driver stages in hi-fi amplifiers and television circuits because of its low voltage at 80 V maximum and high current at 1.5 A maximum.Bridge Rectifier – also known as bridge [...]

ladyada.net has write a new article on how to use LEDs for people making their first steps on electronics. It talks about LED polarity, the various kinds of LEDs, what are LEDs used for, changing the brightness with resistors, changing the brightness with voltage, learn how to calculate the current limiting resistor etc.[ [...]

This is the Simple Automatic Curtain Opener Circuit Diagram. This circuit can be used with a timer clock to open and close curtains or (vertical) Venetian blinds. The curtain or blind is driven by an electric motor with a reduction gearbox fitted to the control mechanism of the curtain or blind. This circuit is ideal for giving your home an occupied [...]

Here is a rechargeable LED lamp that gives you bright light for a long duration of time as it consumes little power. The circuit presented here is compact, automatic, reliable, low-cost and easy to assemble.The circuit comprises power supply, battery charging and switching sections. The power supply section takes [...]

Ultrasonic Wave Receiver Ultrasonic recipients will receive an ultrasonic signal emitted by an ultrasonic transmitter in accordance with the characteristic frequency. Received signal is going through the process of filtering using the frequency band pass filter circuit, with a frequency value that is passed has been determined.Then the output signal [...]

17 Watt dual BTL Audio Power Amplifier HA13127Datasheet for HA13127: Downl [...]

The LTM4620 is a dual 13A per output (or single 26A output) DC/DC μModule step-down regulator that delivers up to 100A when four devices are current shared. The LTM4620 is a complete DC/DC regulator system in a 15mm x 15mm x 4.41mm LGA package, including inductors, power stages and all control circuits. For optimum heat dissipation, an integrated [...]

                                       ISOLATOR                                      ISOLATOR                  [...]

TDA7490 general description:The TDA7490 is a dual audio class D amplifier assembled in Flexiwatt 25 package; it is specially designed for high efficiency application mainly for TV and Home Stereo sets.  TDA7490 Audio Amplifier 2 x 25W / 1 x 50WTDA7490 features:25W + 25W OUTPUT POWER:RL = 8Ω/4Ω; THD = 10%HIGH EFFICIENCYWIDE SUPPLY VOLTAGE [...]