Top Circuits Page 86
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Imagine devices that can disable and destroy microorganisms-viruses, bacteria and fungi - by means of a pulsed, intense, magnetic field! They are not devices for the distant future. They are for today! Already several different pulsed magnetic field....
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The following is my modification of the Headlight wiring for 240Z`s. I made this modification in order to take the current load off of the Headlight switch and put the load onto two relays, giving more current to the lights at the same time. This circuit is....
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It is a 32 Channel, 40Mhz, fully PCcontrolled TTL/CMOSlogic analyser with internal/external triggering and trigger delay. Internal triggering is fully maskable (High/Low/Don`t Care) on all 32 channels. The whole things fits on one single sided PCB with....
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Plasma Globes were invented by Nikola Tesla some time before 1892. Glass-enclosed Tesla coil terminals containing low-pressure gases were part of his effort to develop a new source of lighting not covered by the Edison patents. The same device became an art....
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While working on an Electricity/Electronics exhibit for the Museum of Science in Boston I discovered a number of serious problems in attempting to explain simple electricity. One problem was the obscure way that exhibit devices typically present electrical....
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Amblone stands for AmbiLight Clone, and it is a Do It Yourself solution for imitating the Philips AmbiLight system...
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Added a BASIC preprocessor made in python that allows you to write code withought line numbers and to use labels. the preprocessor adds the lines and changes the labels to line numbers. Also made an AmericanFootball BASIC game, as an example of how to use....
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In some of my previous posts, we have seen the simulations of half wave and full wave rectifiers using simple diodes. Now in this post, I would like to move on to power electronics domain with the first post being Single Phase half wave rectifier using....
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Wireless Imaging Intruder Alarm app enables Home Security Smartphones to detect and send burglar pictures direct to your personal cell phone, PDA or computer within a few seconds of a break-in at your home or business when you are away. Code Alarm Security....
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This 5. 1 surround amplifier circuit schematic use the IC AN7168 as the main component from this circuit. Minimum voltage required 12V and maximum voltage 24V, I recomended it 12 V because the voltage support on are components. But if you want to better a....
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This circuit is a simple battery-powered switching regulator provides 5V out from a 9V source with 80% efficiency and 50-mA output capability. When Q1 is oon, its collector voltage rises, forcing current trhough the iinductor. The output voltage rises,....
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Mono high power amplifier is actually a powerful 1400 W, but if this hihgh power amplifier circuit is doubled and you want to create stereo, high power amplifier the necessary components and pcb requires two-fold. So if the stereo high power amplifier 2 X....
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This is an amplifier circuit that has a high output power is 1400W mono, the audio amplifier circuit is very suitable when used in a large room, using a woofer speaker, and fullrange. To sound out very nice, loud sound and almost no noise. The amplifier....
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In this time I will share about the circuit voltage stablizer or stabilization using IC 7815 and 7915, with a minimum of 17. 5V to 50V input. The output of this circuit will issue with the current 15V voltage in accordance with the input. Stabilizer is also....
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Audio amplifier circuit is very suitable for use at home, using a subwoofer speaker, or woofer speaker. Usually, also called home amplifier, audio amplifiers are based on the IC and ic are used still in series with type STK457 STK and besides it also can use....
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The above is a stereo amplifier circuit based on IC STK4191 with 2 X 50Watt output power 8 ohm impedance. And besides that you can use some of the IC can also be applied in this series include the STK4101, 4111, 4121, 5131, 4141, 4151, 5161, 4171, 4181, and....
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Below it is a circuit of power amplifiers with power output of 450 watts mono, amplifiers are also frequently used in the amplifier a high-power amplifier, which used in an event, in the field and the placed closed. Because this amplifier suitable for the....
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For this amplifier circuit using three voltage plus, min, and the ground. with a maximum voltage approximately 55Volt DC. And amplifier circuit can use some ic ie IC STK 030, 058, 075, 077, 078, 080, 082, 083, 084, 086. From all the ic I mentioned all of....
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Digital Thermometer 0-100. 0 °C is a digital thermometer that operates in mode temperature 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....
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What is the meaning of the picture above The above picture is a miniature audio amplifier and very simple. Here I will give an audio amplifier schematic is very simple which only requires a few components only, can be seen under this scheme. See from above....
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In this series I use IC tda2822M as the main amplifier, but if you want to use in addition to IC TDA2822M you can use ic I mentioned this is KA2209, NJM2073, U2822B, U2823B. Output is issued no more than 4W, which had low output. Supply voltage from 3 volts....
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Amplifier circuit here is all based on the ic in the gains. Three IC TA7230P, TA7236P, TA7237AP is intregated circuit (IC) which was applied to the power amplifier. Each IC has a different output, different input voltage, all IC TA7230P, TA7236P, TA7237AP is....
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As you can see, in this architecture the apparatus accept a big tolerance, so you can body it about of the components, which you acquisition at home. The and transistors can be any NPN blazon ability transistor, but do not use Darlington types The....
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The new archetypal of RS485 advocate overcomes the RTS controlled botheration accomplished by our chargeless design. However, to do that requires a microprocessor, so there is a greater complication to the design. We advertise this unit, although currently....
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Power supply with driver TEA1507 is mostly used by TV branded PHILIPS. Power Supply has an efficiency rate of up to 90% - thus requiring less cooling, as well as stand-by power required is less than 1 watt. Power Supply with TEA driver is equipped with a....
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The power amplifier IC TDA2006 provides high output current and has very low harmonic and cross-over distortion. Further the device incorporates anoriginal (and patented)short circuit protection system comprising an arrangement for automatically limiting the....
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A correct grounding is very important to eliminate hum and ground loops. Connect to the same point the ground sides of J1, P1, C2, C3 & C4. Connect C6 to the output ground. An audio amplifier is an electronic amplifier that amplifies low-power audio signals....
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This is a very-very simple mini audio amplifier circuit. The circuit build based single LM383 with several discrete circuit to support LM383. The circuit capable to deliver about 7W audio output. The circuit could be built on a perf board, universal solder....
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This Balanced pre amp circuit is designed to amplify a little line-level audio signal (from 0 dB to 20 dB), and has balanced inputs and outputs. The scheme uses only conventional components, you`ll have no trouble finding in any electronics. ..
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The 15 w class B audio amplifier circuit shown here is a simple class B audio amplifier based on TL082 op amp, TIP41 and TIP42 transistors. LM833 is a dual amplifier with high scanning speed and low distortion designed specifically for audio applications.....
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The circuit is intentionally designed using old type transistor, it is to get the harmonic distortion and to avoid the difficulty of finding good components. Amplifier (s) can be easily supplied by plug-in wall transformer 12V. Closing SW1 bass boost is....
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22Watt x 2 audio amplifier circuit diagram. This circuit uses IC TDA 1558 from Philips. TDA1558 is a monolithic integrated class-B Output power amplifier in 17-lead single-in-line (SIL) plastic package. The amplifier based on the class H from Philips audio....
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20 Watt Car Power Amplifier circuit diagram bases TDA 2005. This TDA 2005 IC was designed specifically in car audio system for power boosting applications. This IC has a protection against short circuit and overheating. In the above circuit use a bridge....
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22 Watt Stereo Amplifier circuit diagram. This circuit can be used for audio home amplifier and car audio amplifiers. It is extremely simple design, inexpensive and very easy to build. Even a newbie hobbyst will easy assemble this circuit. The scheme given....
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240W Power Amplifier class D circuit based TDA8924. The chip has a short-circuit proof output, thermal protection and acoustic protection from the inrush current when you turn on and off. The scheme provides two options turn on an amplifier both stereo and....
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It is small and compact stereo amplifier is powerful but can easily be used to replace your broken amplifier or new construction, or to make an active speaker, in all cases combined with a preamplifier. With remarkable feature smake it the true Hi-Fi....
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Here is a circuit diagram of car stereo. Below is a circuit diagram of class B 15 Watts audio amplifier is designed using a dual op-amp and transistor. The 15 W class B audio amplifier circuit shown here is a simple class B audio amplifier based onLM833 op. ..
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FM radio antena amplifier circuit diagram. This amplifier will pull in all distant FM stations clearly. Active FM amplifier circuit is configured as a common-emitter tuned RF pre-amplifier wired around the VHF / UHF transistor MFE201. Below is a circuit....
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unbalance pre amp single supply. The use of a single power supply requires the presence of a voltage equal to the voltage divided by two. This half-voltage is created by the resistors R9 and R10 connected in voltage divider bridge. ..
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This Car audio amplifier gives ouput of 40w from 2 ohm speaker. his car amplifier circuit gives an output power 40 watts per channel at 2 ohm load, and 22 Watts on 4 ohms load. Perhaps you are wondering how to get 40 watts of power And answer is : you can....
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Class D amplifier for ATtiny15L microcontroller circuit diagram. These units can get acquainted with one embodiment of the amplifier is Class D. Controller ATtiny15L AVR family firm Atmel is perfectly suited for this purpose, because it contains a ten-digit....
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Electret mic pre amp schematic. The op amp provides an amplification of about 30 dB (which is sufficient for the relatively high output level of an electret microphone), this gain depends on the value of resistors R3 and R4. If you want to be able to vary....
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10 Watt Audio Amplifier circuit diagram. This is general purpose 10-W power audio amplifier circuit for medium power amplifier or use a modulation in the AM transmitter. For higher power up to 30 W can be obtained by increasing the voltage and change the....
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LM4880 is a dual audio HiFi amplifier IC from National Semiconductor. This headphone amplifier circuitis specifically designed to produce high quality audio output with a minimum amount of components. LM4880 integrated circuit capable of delivering 250mW per....
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As you can see on the circuit, a class AB audio amplifier IC requires only a few external components. And this series is also very easy to build. 10W stereo amplifier circuit requires a stable power supply with a voltage of 18 V and 1A current needs. ..
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This achievement shows that it is possible to create a balanced dynamic microphone preamp, it is relatively simple. This preamp is particularly suitable for microphones with an output impedance of 200 ohms to 600 ohms. The advantage of the preamplifier. ..
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High quality audio amplifier for computer circuit diagram. The electrical circuit of the amplifier is shown in Fig. 1. For its production is chosen in a typical IC TA8205AN inclusion. Usually it is applied to a Hi-Fi class due to low harmonic distortion.....
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High quality mono audio amplifier circuit. This amplifier is built on the classic symmetrical scheme with output stage operates in class AB and has a pretty good sound, with no complicated setup and scarce components. ..
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Hydrophone preamplifier circuit. As you can see, it`s really simple and uses only conventional components. The transducer used, is piezo type and has a relatively high output impedance, which requires a preamp with a high input impedance. ..
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Video Power amplifier circuit diagram. The scheme works only when using the compounds of AV where video and audio signals are sent separately. Not suitable for joints «HF » antenna cable. Make sure to include the video amplifier in the line of the video,....
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Mic Amplifier schematic diagram. This circuit has been tried on three microphones, one from SONY, and then two Chinese, everything works! With the correct assembly of the device starts to work immediately, and does not need tuning. ..
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Mic pre amp schematic based TLC251. TLC251 is a Programmable Low-Power Operational Amplifiers. This is indeed a control input, called BIAS (pin 8), which determines the mode of operation. When the pin is worn on the positive potential of power supply, the....
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Mono preamp based on a NE5534 circuit diagram. This preamp is particularly suitable for microphones with an output impedance of 200 ohms to 600 ohms. The advantage of the preamplifier is 50 dB, and bandwidth (-3 dB) extends to about 25 KHz. The splitted....
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Non inverting audio amplifier schematic. This Non-inverting audio amplifier circuit may be applied to Multi-channel audio systems, stereo phonographs, tape recorders and players, AM-FM radio receivers, servo amplifiers, Intercom systems, Automotive products.....
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Car audio amplifier schematic diagram. Given the voltage of the car is +12 V, we have the opportunity to take power over a threshold. The solution is to use two amplifiers in bridge connection, so the output quadrupled, at least theoretically, and at best,....
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The amplification of this pre amp is therefore very high, whether to reduce, there should be a trimmer R3 series to 100 ohms. The system can be powered by a voltage of between 9 and 18Volts. for its realization, follow the diagram layout. ..
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Resistor change in ECM Mic Preamplifier schematic diagram. The electret condenser microphone (ECM) contains a very sensitive microphone element and an internal FET preamp, a power supply in the range 2 to 10 volts DC is therefore necessary. Suitable ECM`s....
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Circuit IC1 provides a do amplification of 40 dB, which drops to about 20 dB when the frequency rises above 500 Hz. To minimize the (resistor) noise and the load of the op amp at higher frequencies, the value of R3 is a compromise. The associated polystyrene....
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With the integrated audio TDA8571J designed for automotive applications, this circuit can expand the sound of the car radio or connect a portable MP3 playerin it. Internally, thechiphas eightoperationalamplifierseton the bridge, allowingeachspeaker....
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RF amplifier circuit diagram, deliver 1W for 2. 3GHz, built based MRF2001. This RF amplifier delivers about 1 Watt power output with 8-dB minimum gain at 24V voltage supply. The frequency can be tuned from 2. 25GHz to 2. 35GHz. Applications include microwave....
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Booster for audio circuit diagram. Potentiometer R5 of 100K is a linear type with an on/off switch attached. The value of C1 may need to be between 0. 05 µF and 0. 1 µF (47nF/100nF). Experiment with the value for best performance. This is a20 watts audio....
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Preamplifier + tone control circuit based TDA1524A. Tone control circuit module is included in this preamplifier circuit, so you can connect the output channels directly to stereo power audio amplifier circuit. ThisRIAA stereo preamplifier uses only....
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TDA2050 Audio Amplifier circuit diagram. There is a current environmental protection: the signal from the output passes through the connecting cables and chains of the column (in this case takes into account the reactance of the circuit section of the 4th....
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Various types of amplifiers like power amplifiers, audio amplifiers, tube and stereo amplifiers, sensor amplifiers, rf amplifiers, sound amplifiers, video amplifiers etc...
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Here is the circuit diagram of a 741 IC based 3 input mic mixer ckt. Altogether four 741 IC`s are used out of which IC1, IC2, and IC3...
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Clipping is one of the main problems that causes distortion in amplifiers. It causes the amplitude level of a waveform to drop suddenly before it reaches the limit that it was supposed to reach. Well, here is a simple circuit that will help to detect the....
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circuit diagram of audio distortion meter has been described here. Audio distortion meter is used to measure Total Harmonic Distortion...
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The circuit diagram of Automatic head lights turn off circuit has been explained here. This circuit can be installed in a car...
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Automatic cooler fan for amplifiers is a circuit introduced for the purpose of saving power in amplifier circuits. This circuit switches ON...
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The circuit diagram of Cable TV amplifier has been published here. This cable TV amplifier circuit consists of two transistors Q1 and Q2...
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The circuit diagram of simple capacitance meter has been published here. The core part of this circuit is the frequency to voltage...
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The circuit diagram of Radio Collar Transmitter has been described here. This circuit is based on the IC NE 555 which is the central part...
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Here is the circuit diagram of remote controlled appliance switch circuit. The main parts of this circuit are IC1 (NE 555), IC2 (CD 4017)...
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The circuit diagram of 7 segment counter circuit has been published here. This circuit consists of counter IC CD 4033 as its central part...
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The Circuit is the diagram of a simple three band graphic equalizer circuit. An IC called LF 351 IC is used here...
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The circuit diagram of lead acid battery charger has been described here. The core part of this circuit is the IC LM 317...
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Figure shows the circuit diagram of multi tone alarm. This is basically an amplifier circuit. The central part of this circuit is the dual...
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Project Manager Jim Heck G3WGM has given an exclusive audio interview to the TX Factor s Bob McCreadie G0FGX which explains what the tests are all about and the potential problems. Membership of AMSAT-UK is open to anyone who has an interest in amateur radio....
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An internally compensated operational amplifier is described which has been fabricated using n-channel Al-gate MOS technology. Only enhancement mode devices are used, and the circuit has been designed so that its performance is insensitive to process....
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This project provides the schematic and the parts list needed to construct a 3V FM Transmitter. This FM transmitter is about the simplest and most basic transmitter to build and have a useful transmitting range. It is surprisingly powerful despite its small....
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In the Knight Rider circuit, the 555 is wired as an oscillator (Astable mode). The output of the 555 is directly connected to the input of a 4017 decade counter. The input of the 4017 counter is called the CLOCK line. The 10 outputs Q0 to Q9 become active,....
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I`ve made more headway. The other day I built a 6kHz oscillator using a 555 to produce a clock signal that I could inject into the 832. You can see the trace on the scope, and the oscillator itself pictured below. While running on the new clock, the rest of....
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The Visual Target Tracking System (VTTS) is a system for visually tracking targets using a gimbal mounted camera and digital control circuitry. A small black and white camera is mounted on a stand that can be moved with two directions of freedom. When an....