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Build a BTL Stereo Amplifier Circuit Diagram with TDA7052 , you can see circuit and start make a BTL Stereo Amplifier Circuit Diagram with TDA7052. BTL Stereo Amplifier Circuit Diagram with TDA7052 

There are some hopes that the sun will become a main source of energy in the 21st century. By then, sources of oil will be almost exhausted and will only play a minor part in the supplying of energy. Interested to know how to make a simple solar tracker with dual axis? Learn More The present interest in solar energy is therefore not surprising. Some work has already been done with solar cells and solar panels . However, these only operate with optimum performance when positioned exactly at right- angles to the sun. Unfortunately, this situation is not usual in our latitudes unless the solar panels are rotated with respect to the sun. The efficiency of a solar panel system can be improved if the panels track the sun, and remain as long as possible at the most favorable angle of incidence.  The circuitry required is relatively simple. lt uses a window comparator which keeps the drive motor idle, as long as the two LDrs are subjected to the same illumination. Half the operating v...

If you are a fan of David Letterman, I'm sure you've seen and heard his nutty and often hilarious top 10 lists. He has become famous for them and they have been often imitated but never quite aptly duplicated by many around the world. I have no intentions of trying to claim or ever hope to be as funny as Letterman but I would love to create a top 5 list of why you need a new auto sound system. The sad part is that some of this may ring true for many, if not, I bet it will at least make you smile. 5) You really hate your neighbors and secretly hope that enough loud, late night thumping from your car will convince them to move. Admittedly not the kindest reason for the need of a new auto sound system but if you've had some of my previous neighbors I am fairly certain that it isn't too bad of an idea. Just be careful not to shake too much or they may be leaving part of their automobiles behind. 4) Because you saw it on Ebay and like Weird Al Yankovich you just can't se...

This simple Telephone Record Control Circuit Diagram will allow you to connect any tape recorder that has a mic and remote input to a phone line and automatically record both sides of a conversation when ever the phone is in use. You will need to take a couple of voltage readings before connecting the circuit. First determine the polarity of your phone line and connect it to the circuit as shown and then determine the polarity of the remote input and connect it to the circuit. Circuit operation is as follows. When the phone is on hook the voltage across the phone line is about 48volts dc. When the phone is off hook the voltage will drop to below 10volts dc. When the line voltage is at 48volts the FET is off which causes Q2 and Q3 to be off. When the phone is picked up the FET turns on along with Q2 and Q3 which turns your recorder on. The tape recorder must be in the record mode at all times. As you can see the power source for the circuit is the phone line.  Telephone Record Con...

The second example below uses a LDR (light dependent resistor) to indicate some desired light level. The LDR has a large dynimic range and varies in resistance from less than 100 ohms on a cloudy day to over a megohm in total darkness. A 2K pot was used to adjust the window range for usual room light conditions. This setup might also be used to indicate sunrise/sunset conditions. Light Level Indicator  Circuit Diagram

This is a Variable 5 to 20V DC Supply Circuit Diagram . If you are looking for a low drop voltage regulator that can provide a power supply of 1A with an output voltage of between 5V and 20V DC, National Semiconductor LM2941 Low Dropout Adjustable Regulator is that you can pick to make use of. It's a typical dropout voltage of 0.5V which means that the input supply need only must be 0.5V DC over the desired output voltage.  Variable 5 to 20V DC Supply Circuit Diagram   Its other features include internal short circuit current limit and reverse battery protection. As shown in the schematic below, the regulator has five pins which consists of the ON/OFF control, Input Voltage, Output Voltage, Ground & Adjustable pins. ON/OFF is used for the purpose of switching on & off of the regulator. The capacitors C1 & E1 are to be placed as close as feasible to the regulator.  The output of the circuit can be varied by varying the worth of potentiometer VR1 from 5V DC to 2...

    Japanese Sharp introduced 4.1-inch IGZO LCD display with a resolution of 2560x1600 pixels, ultrathin side frames and record the density of pixels per inch - 736ppi. Accommodate a number of pixels in the panel manufacturer managed due to their small size - 11.5 mm x3. Recall the absolute record for the pixel density among all Android-devices today is the smartphone Samsung Galaxy S5 LTE-A 5.1-inch QHD-display - 576 ppi. Mass production of the new panels Sharp will begin only in 2016, respectively, and the first mobile news, equipped with them will be available no earlier than a year and a half. There is no doubt that over such a long period of time not less than its impressive design will show as Samsung and LG Display. First, for example, according to the latest leaks, in August 2015 will begin production of 5.9-inch Super AMOLED-display with ultra-high-resolution Ultra HD (3840h2160 points) and the density of pixels in 746 dpi.

Build a 1.2-36V 5A Adjustable Power Supply circuit diagram with LM317 . This circuit is a simple power supply circuit. 1.2 - 36V adjustable bench power supply with 5A of output current. Max input voltage is 37V and output is adjustable via potentiometer between 1.2 up to 36 volts. TIP147 PNP darlington transistor boosts the current of LM317 from 100mA to 5A. LM317 is the most useful and inexpensive adjustable regulator and for this circuit you can also use LM317 L that can give 100mA, that's enough for transistor bias.   1.2-36V 5A Adjustable Power Supply Circuit Diagram  D1 and D2 are protection diodes because when you turn the circuit off the output capacitors are discharging and can damage the transistor or regulator. 100nf capacitors are in parallel with electrolytic capacitors to remove high frequency noise because large value electrolytic have large ESR and ESL and can't remove high frequency noise.

Digital Thermometer 0-100.0°C is a digital thermometer that operates in modetemperature measurement in Celsius (° C). Digital Thermometer 0-100.0 ° C in this article uses data processor in the form of a microcontroller AT89C4051. Temperature sensors used in Digital Thermometer 0-100.0 ° C. This temperature sensor LM35D. Digital Thermometer 0-100.0 ° C. It uses the temperature measurement data viewer in the form of 1 line LCD viewer. Digital Thermometer 0-100.0 ° C. It can display the temperature measurement data with a resolution of 0.1 ° C. Digital Thermometer Circuit Diagram Digital Thermometer 0-100.0 ° C. These temperature sensors make use of LM35D as temperature sensing. In Digital Thermometer 0-100.0 ° C. This temperature sensor measurement data this LM35D (Level Voltage) is then converted into 4-bit binary data using the ADC CA3162. Then the 4-bit data from ADC CA3162 which is a measurement of data if the temperature is in the AT89C4951 microcontroller so that it becomes an oper...

This is the 25W Class-A power audio amplifier circuit. The output devices are MJL4281A (NPN) and MJL4302A (PNP), and have high bandwidth, fantastic SOA (safe operating area), high linearity and high gain. Driver transistors are MJE15034 (NPN) and MJE15035 (PNP). All devices are rated at 350V, using the power transistors having a 230W dissipation and the drivers are 50W. 25W Class-A Power Audio Amplifier Circuit Diagram  The supply voltage must be a maximum of ±25V. This supply is simply obtained from a 20-0-20V transformer, recommended current is 1A.  All resistors ought to be 1/4W or 1/2W 1% metal film for lowest noise, with the exception of R9, R10 and R15 which ought to be 1/2W varieties, and R13, R14 have to be 5W wirewound.  Using the suggested and advised 25V supplies, Q4 will typically not need a heatsink. The output drivers (Q5 and Q6) recommended to use a heatsink, even though it doesn’t have to be big.

The post explains a simple 21 watt LED lamp circuit module which can be used as a direct replacement for a standard halogen lamp in motorcycles. The proposed "halogen" LED lamp replacement module image can be seen below: Conventional filament type halogen lamp is shown below: The image at the top shows an example LED lamp replacement for a standard halogen bulb fitting shown below it. With the easy and extensive availability of LEds, today it's quite possible to make any desired LED lamp module at home for replacing other forms of less efficient lamp options. So here we'll discuss how to make the proposed halogen LED lamp replacement circuit. Let's learn the procedures: Referring to the above image, we can see the LEDs are wired over 7 separate PCBs and then wired together to form one single module. Each board can be seen with 3 LEDs each, constituting a total of 21 LEDs. 3nos LEDs are selected because the supply 12V available from the vehicle allows only 3nos t...

Low values of resistance can be troublesome especially when large current s f low through them. A current of, say, 10 A passing through a terminal with a contact resistance of 50 m? will produce a voltage difference of 0.5 V. This resulting power loss of five watts is dissipated in the termination and can give rise to a dangerously high temperature which may degrade insulation around the wires.  . Circuit diagram : Measuring Milliohms with a Multimeter Circuit Diagram . Measuring low values of resistance is not easy. Low cost multimeters do not include a milliohm measurement range and specialist equipment is expensive. The simple circuit described here allows milliohm measurements to be made safely on a standard ist equipment is expensive. The simple circuit described here allows milliohm measurements to be made safely on a standard multimeter. The circuit consists of little more than a 6 V voltage regulator and a mains adapter capable of supplying around 300 mA at 9 to 12 V....

This is a simple High voltage inverter circuit diagram . This inverter circuit works with a transistor and transformer and other components to increase the voltage becomes high. Input supply voltage ranging from 3V to 6V DC, later it was raised to high voltage AC. However, in this inverter circuit output current is very small, probably under 0.1A even smaller. However, its use you can apply it on a fluorescent lamp 10W maximum power only, and that too takes time to switch on fluorescent lamps.  High voltage inverter circuit diagram Part List R1 = 4K7 R2 = 2K2 R3 = 330K C1 = 100nF C2 = 100nF 275V C3 = 0.22uF 275V Q1 = D506 L1 = 100 times winding, with 0.8mm diameter copper wire L2 = 50 times winding, with 0.8mm diameter copper wire L3 = 5000 times winding, with 0.4mm diameter copper wire

Today I’m going to show you how to set up a Fender Telecaster-style guitar. We are only going to do a basic setup, which is enough most of the time, but occasionally more is required, such as filing the nut, or doing some fretwork. If you're setting up a Stratocaster-style guitar, you might prefer to have a look at this blog post: http://diystrat.blogspot.com/2011/03/how-to-set-up-electric-guitar.html Alternatively, if you're setting up a Les-Paul-style guitar, you should have a look here: http://diystrat.blogspot.com/2012/09/how-to-set-up-gibson-les-paul-style.html So what does a basic setup involve? Let me break it down for you, as follows: Checking and adjusting neck bow (how straight the neck is) Checking and adjusting saddle height Checking and adjusting the intonation (how far back or forward the saddles need to sit at the bridge to keep your guitar as in tune as possible no matter what fret you’re playing) Those three steps will have a dramatic effect on your guitar and ...

This is a Simple Power Pulse Using by LM350 and NE555 Circuit Diagram . This circuit can use to drive lamp,power LED,DC motor etc. Adjust R5 for output amplitude.Adjust R1 for output power . Power Pulse Circuit Diagram The LM350 is adjustable 3-terminal positive voltage regulators is capable of supplying in excess of 3A over a 1.2V to 33V output range.This circuit requires 5-15V power supply.

Here are some tips you need to note: 1. Pick of the power that suits your needs. For personal use such as exercise, etc., is sufficient to choose an amplifier with a power of 15-20 watts. In most small power amplifiers are already available facilities such as Head Phone jack (eg Guitar Amplifier Laser 20) which is very useful especially for young people who have a habit of playing music until midnight. By leveraging these channels to Head Phone, then secured another household or neighbors will not be disturbed our music sound. Sound good hasilnya.Apabila amplifier system we will use to train together in a full band with drums, etc., then you should choose a larger power amplifier that is 70 watts or above. Thus the sound produced from the amplifier and sound system will not be drowned by the sound of pounding and pounding beat Drum.Untuk use on stage, you will need a higher power that is at least 125 watts or more, because this amplifier will be able to once we use as a monitor of musi...