New Circuits Page 82
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This solid-state push-pull single-ended Class A circuit is capable of providing a sound comparable to those valve amplifiers, delivering more output power (6. 9W measured across a 8 Ohm loudspeaker cabinet load), less THD, higher input sensitivity and better....
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I would start by making certain that no light bulbs on the vehicle are burnt out, particularly the turn signal lights, brake lights and dashboard indicator lights. Funny things happen when bulbs are burnt out. It sounds like you know your way around a meter,....
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As you can see, there are few parts to this design, really just the ATmega328p-pu microcontroller and the LCD display. Both of them require a steady +....
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PWM waveforms are commonly used to control the speed of DC motors. The mark/space ratio of the digital wave-form can be defined either by using an adjusta....
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The circuit below illustrates generating a single positive pulse which is delayed relative to the trigger input time. The circuit is similar to the one above but employs two stages so that both the pulse width and delay can be controlled. When the button is....
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This circuit is basically a 8W inverter circuit. The circuit continues to be intended to drive an 8W fluorescent lamp from a 12V power supply, utilizing an cheap inverter primarily based on a ZTX652 transistor. The inverter will operate from supplies in the....
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The circuit our localizer is based on consists only of a quad-band GSM/GPRS module interfaced with a a microchip microcontroller which, after initializing the I/Os and UARTs it has at its disposal, puts the main program in a loop waiting for some event,....
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Figure shows the bean sprouts automatic watering control circuit. The controller consists of step-down rectifier circuit, power outage told implement (IC3), timing control circuit (IC1), temperature control circuit(IC2) and so on. The step-down rectifier....
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Dual channel thermometer is simple PIC ADC based project. It`s a inexpensive thermometer with low cost components. Don`t used any high sensitive or high cost sensor for thermometer. I am using only simple silicon diode. Dual channel means this thermometers....
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This electronic liquid detector circuit diagram is based on the ULN2429 monolithic bipolar integrated circuit designed for detecting the absence or presence of many different types of liquids. The ULN2429 electronic liquid detector circuit can be used in....
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15 Watt switching power supply schematic diagram. Pulse transformer T1 is performed on the ferrite core M2500NMS-2 or M2000NM9 Sh5h5 size (cross-section of the magnetic coils at the location of 5G—5 mm with a gap in the center). Winding wire is made brand....
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K`nexapod is a hexapod robot built with K`nex building toys and controlled by a PICAXE microntroller. Propelled by small hobby servos it can move forward, backward, and make turns. It is equipped with an ultrasonic sensor and follows a simple algorithm to....
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This is Micro inverter or The inverter very small-sized, perform modify from the energy battery the small-sized, have the value voltage about 220V AC Volt 50HZ. By the circuit composes 2 transistors performs pulse oscillator generator or Square wave....
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Hi all, I am in need of a DC-DC Power supply schematic that outputs between 12.7 and 14.5VDC and an input that could be anywhere from 12VDC up to....
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This is a very practical device and I built it so that it is a module to my Dual Channel IR Remote Control. Because of that I ended up with a definite overkill of what is supposed to be a simple switch with a timer when I open/close my door. Anyway, it is....
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Variable audio oscillator with a range of 20 hertz to 20 kilohertz. The chip used is an Intersil 8038 waveform generator, which is a 14-pin DIP (courtesy Intersil, Inc.)....
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Here is a solar charger circuit that is used to charge Lead Acid or Ni-Cd batteries using the solar energy power. The circuit harvests solar energy to charge a 6 volt 4. 5 Ah rechargeable battery for various applications. The charger has Voltage and Current....
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This circuit has been designed to provide a clearly visible light, formed by 13 high efficiency flashing LEDs arranged in a pseudo-rotating order. Due to low voltage, low drain battery operation and small size, the device is suitable for mounting on bicycles....
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Most Atmel AVR microcontrollers can be programmed via their in-built serial programming interfaces (SPI). This method is ideal for in-situ programming, such as might be used in manufacturing or for firmware development or field upgrades. In this scenario,....
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Hi Folks, I`m new to the forum and a bit of an electronic newbee, (from an engineering technical perspective, though have tinkered with circuits/schema....
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this instructable will show you exactly how to read all those confusing circuit diagrams and then how to assemble the circuits on a breadboard!for all....
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I could use some help analysing a circuit. Specifically the frequency cut-off between the bass and treble channels. Is it 500Hz, 1KHz or 5Khz. I`m....
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The electronic dog repellent circuit diagram below is a high output ultrasonic transmitter which is primarily intended to act as a dog and cat repeller, w....
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Protect your LCD or Plasma TV with this tiny delay on circuit. The SMPS based power supply of these modern electronic devices is vulnerable to spikes in t...
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WSH412 is designed to integrate Hall Sensor with complementary output drivers and frequency generator together on the same chip, it is suitable for speed measurement, revolution counting, positioning, and DC brushless motors. It includes a temperature....
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classic 555 timer chip schematic circuit t shirt by eevblog picture on VisualizeUs - Bookmark pictures and videos that inspire you. Social bookmarking of pictures and videos. Find your pictures and videos....
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You have to admit that these tiny electronic lamps are handy, and they last almost forever. Around 40 years after Nick Holanyak developed the first LED, they have become just about indispensable. Any self-respecting electronics hobbyist always has a few in....
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Feed the cable through some hole in the chassis to the opposite side There, between fan and rear panel, you may install the IFD board upside down. Use a thin and flexible isolating material, as PE or PVC to prevent short circuits. The board should be placed....
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This is a combination digital clock timer and solar panel charge controller used to maintain a deep cycle battery from a solar panel. The timer output is used to control a 12 volt load for a 32 minute time interval each day. Start time is set using 9 dip....
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The following picture shows the electrical wiring connection diagram for Honda Motorcycle CB750F. It shows the connection between Honda parts such as the right turn signal indicator light, oil pressure warning light, neutral indicator, high beam indicator,....
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At a T connection, it`s clear, but at a cross it`s otherwise not clear, especially if there are no junction dots elsewhere as in your schematic. It looks like the bottom of Is and the right side of R2 are supposed to be connected to ground, but your....
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It`s based on a Philips class-H audio amplifier IC and can deliver 36W RMS OR 70W music power, all from a 13.8V supply. Our new Mighty Midget Amplifier can really pack a punch - around 36W RMS continuous into a 4-ohm load when using a 13.8V supply. However,....
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This audio amplifier circuit is useful in classrooms to reduce the strain of lecturing, if the surrounding environment is noisy. It uses the power amplifier IC LM380 that gives 2 watts output which is sufficient in a confined area. The amplifier is portable....
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Most small internal-combustion engines commonly used in the model-building world use glow plugs for starting. Unfortunately, glow plugs have an operating....
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Too much of a good thing can confuse you. I started out looking to build a simple 15W triode / 30W Class AB1 pentode PP amplifer. Class AB1 = because....
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Here is my project on interfacing of SD Card (microSD). microSD cards are available very cheap nowadays, a great option for having a huge memory in any embedded system project. It is compatible with SPI bus, so the interfacing is easy. SD card adapters are....
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The circuit diagram given here is of a stepper motor driver using MC3479 from Motorola. The MC3479 is specifically designed for driving a 2 phase stepper motor in bipolar mode and is available in standard DIP and surface mount packages. The IC is compatible....
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This project is developed to control up to 50 solid state relays individually. The project is good learning material for students who which to expand the input output lines of microcontroller and want to control many devices. 2. The ON or OFF status of each....
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Connection and wiring between each parts and component of exterior lights system of the vehicle such as the fusible link, junction block, tail light relay, cruise control, stop light switch, relay box, column switch, rear combination light, front combination....
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The oscillation circuit of the transmitter was added. An oscillation circuit by 555 IC is used for a modified circuit. This is to adjust an oscillation frequency easily. Thereby, it is necessary to change the software...
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This is a design of metal detector requires alone a scattering of apparatus and an evening`s work. Congenital about a cmos4011 IC, is actual able-bodied and versatile. The 250 kHz advertence oscillator is congenital with two gates (U1/1 and U1/2), C1, R1 and....
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The circuit diagram of a very simple voltage doubler using NE555 timer is shown here. Here IC NE555 is wired as an astable mutivibrator operating at around 9KHz. The base of the two transistors (Q1 and Q2) is shorted and output of the astable multivibrator....
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The circuit has four inputs. The voltage gain between each input and the output is held at unity by the relative values of the 470k © input resistor and the 470k © feedback resistor. ..
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Figure 1 is an improved trigger timing circuit composed of 2 PUT. If you add the set signal, the circuit will be set, transistor VT1 turn to the conduction state, the relay K will be energized action. It supplies voltage for the delay voltage at the same....
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Hello Everybody! After a year or so of reading and drooling over other people`s wonderful projects in these pages I decided to finally make one of my....
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A radio that was stored for years on a dusty shelf must be awakened gently to return to its reliable operation and provide us with warm and pleasant sounds for years to come. Here are few generic notes on how a radio can be easily returned to life. Of....
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The cell phone shield circuit uses two NE555 timer ICs: One as being a very simple astable multivibrator (IC2) and then the 2nd as being a monostable multivibrator (IC3). The astable multivibrator has timing resistors R1 and R2 but no timing capacitor since....
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Super boost bass circuit this be low pass filter circuit model,which will low pass filter. By give bass audio that firm then convenient for a person who like....
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Sure, listening to VHF FM has great advantages over MW/LW AM from the old days now we have bright stereo free from interference, fading and noise! However, your FM radio will no longer predict the arrival of a thunderstorm as did the AM radio many years....
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I need one to put in between my headphones and my metal detector. I don`t need anything fancy, but would like to be able to use a pot and make it variable. I`m sure this can be done, I have looked and either don`t understand it, or it`s just not what I`m....
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I just about the circuit you made. what kind of IC is 4029N & 4511N Is it a diver/decoder I tried to research on the datasheet but it cannot give exact specification. ..
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We`ve all had occasion to be annoyed at inconsiderate dog owners whose animals relieve themselves on the private property of others. This problem can hardly be solved in a lasting manner using verbal (or even physical) means, so recourse to an electronic....
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Here is audiopreamp mic(dinamic). 200-600-ohm output impedance and low noise pre-amplifier for dynamic microphone is ideal for strengthening. This is a three-stage discrete amplifier with gain control. Alternatives such as the BC109C transistors, BC548....
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Although the TDA2030 is capable of delivering 20 watts of audio power, I deliberately reduced the output to about 8 watts to drive 10 watt speakers. This is more than adequate for a smaller room. Input sensitivity is 200mV. Higher input levels naturally will....
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Two identical integrated circuits, U1 and U2, known as "hex inverters" are used for the theremin`s primary functions. They are CMOS (Complimentary Symmetry Metal Oxide Semiconductor) devices, typically used in digital circuits to perform a logic function....
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The antenna amplifier circuit has a part count of about 40, using the following active parts: 2 NPN transistors (BC548`s), 1 MOSFET (BF981), 2 Varicap diodes (KV1235), as well as a 6v2 zener-diode. there is and a 330uH (micro Henry) inductor / coil, which....
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This is a single zone alarm - with automatic exit, entry and siren cut-off timers. It will accommodate all the usual types of normally-closed input devices - such as magnetic-reed contacts - foil tape - PIRs etc. But it`s easy to add a normally-open trigger.....
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The main area for application of brushless direct current motors (BLDC) is positioning..
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The TDA8581 from Philips Semiconductors is a 1-watt Bridge Tied Load (BTL) audio power amplifier capable of delivering 1 watt output power into an 8 ohm l....
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This is a Wien-bridge sine-wave oscillator circuit. This circuit uses negative-feedback stabilization to make sure the gain won`t go higher than unity to....
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This entry is a 4 step sequencer controlling an `Atari Punk` synth with a greyscale NTSC video visualization of the output audio, built using two 558 quad-timers and two 556 dual-timers. Sorry in advance for the poor video quality, I will try to get a direct....
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A few nice midi controller interfaces I found. The Knee(Audio)Pads are a wearable MIDI...
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This audio processor circuit features the SSM2045 IC which was developed specially for electronic music applications and the 741 opamp IC. The circuit is configured as a low pass filter with a DC voltage control for gain. The input signal is set to a working....
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Hello all, I would like to built a sound generator for my Room Monitoring system.Can someone suggest me any electronic design as I would not like to use HT2810 or H....
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Ultrasonic atomizer circuit : How to generate an atomized water mist using ultrasonic sound waves....
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This circuit came from a need for a quick and dirty network tester that could be operated by one person. All the commercial units I tried required a person at the other end to check the remote LEDs, as the transmitters could not be made to cycle through....
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The circuit is a fairly easy design: It consists of the actual VCO (ICL8038 with supplement parts), the sine and triangle output stage (LT1210) and the CMOS-compatible output stage using the MOSFET driver chip ICL7667. The ICL8038 and all parts around on the....
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Transistors are inevitable parts of Electronic circuits. The success of a circuit design lies in the selection of proper transistor type and calculation of....
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Function: used to give balanced little distortion amplification and level shifting to wide bandwidth differential signals. Component: LMH6552 IC, Resistor, ....
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Here is a simple circuit diagram of a simple musical horn using two NE555 ICs. Two ICs are wired as astable mutivibrators. The output of first multivibrator is given to the discharge (pin 7) of the second astable multivibrator. The combined effect of the....
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7-Segment LED Display is a very useful component, but also a very confusing and difficult piece to use for beginners. It won`t be difficult once you get it working for the first time. It basically consists of 7 LEDs, (8 if include decimal point). Just like....
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The automatic sprinkler controller circuit is composed of the +12 V power supply circuit, light control circuit and irrigation control circuit, and the circuit is shown as the Figure. +12 V power supply circuit is composed of the knife switch Q, fuse FU2,....
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This is a discussion on Trying to build an Ambilight within the Electronics forums, part of the Tech Support Forum category. Hey there, I was recently looking at back lighting lights/LED`s for behind monitors. and I came across a thing called I was recently....
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Be sure to mark clearly on the circuit diagram of a part of each type and size! Thank you! Satisfied with the answer, and additional! Do not tell me there are very general site, so I am looking for. Thank you, brothers and sisters, brothers and sisters,....
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Here`s a design circuit for very simple antenna amplifier electronic circuit project can be designed using this circuit diagram. This antenna amplifier electronic circuit can be used for a frequency range between 1 and 300MHz. This circuit antenna amplifier....
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Hi Guys, first post to the forum here. I`m having a strange issue using an Intersil HIP4081A H bridge driver IC. I have it hooked up to an Arduino MCU ....
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A source code for a very simple PIC based digital timer. The actual hardware of the project isn`t with me anymore. I will rather demonstrate it using my DIY PIC16F628A breadboard module and I/O board. The complete circuit diagram along with the firmware....
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This project gives you a real time clock with the RTC chip DS1307. This RTC chip has inbuilt oscillator for clock and it has its own registers for full...
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The two diodes will be fried. You`ll want some series resistors for them. If the simulation runs, the current through the diodes will be huge. jippie Apr 30 `13 at 9:40 @jippie Both diodes need not be fried :-) One will become a SED (Smoke Emitting Diode),....