New Circuits Page 24
- Page 24
-
-
-
In this age of enlightenment any sort of relationship that could be described as master/slave would be questionable but for the purposes of this circuit it gives a good idea of how it functions. The circuit senses mains current supplied to a master` device....
-
Instead of simply incrementing the time every new second, it would be great to have a display of forward- and backward-spinning digits, slowly rolling-out to the new time, a little bit like the reels of a slot machine. Having never encountered them,....
-
This circuit operates two LED strips in pulsing mode, i.e. one LED strip goes from off state, lights up gradually, then dims gradually, etc. while the other LED strip does the contrary. Each strip can be made up from 2 to 5 LEDs at 9V supply. The two Op-Amps....
-
-
The circuit of this device is quite simple: an input circuit filters the signal provided by the antenna to reduce sensibility to other phenomena and protects against over voltages. The four transistors realize a "one-shot" section that is triggered by the....
-
-
An advantage that a photogate has over a sound trigger is that the former triggers on the precise location of the object that breaks the beam. For example, the shape of a snapped elastic cord can be photographed as it passes through the beam. While a....
-
The nicety of air coils: one can build them at home rather easily and they seem to swing at a higher inaudible frequency above 100 KHz. May be the frequency comes down once really huge coils achieve an inductance comparable to ferrite core coils. But I hope....
-
This solar charge control combines multiple features into a single design: 3A current rating, low dropout voltage (LDO), range of voltage adjustment (accom....
-
Electromagnetic flow meter : How to measure fluid flow using a magnatic field....
-
The streamliner passenger car came into existence just before W. W. II as parts of dedicated passenger car and locomotive consists. They were designed to be lightweight to allow high speeds with a single rather small diesel engine. Eventually the railroads....
-
-
The switch has been mounted inside the tap of the handlebar. I`ve make the battery holder out of an old flashlight. As you can see in the video in step 1, i`ve put the sireen inside the left end-bar grip and the wires pass under the tape and inside the tube....
-
The Resistive Sensor Head (A2053) is a Long-Wire Data Acquisition ( LWDAQ ) Device that measures the resistance of up to eleven resistive sensors. These sensors could be 1000- © RTDs (resistance-temperature devices), 100- © RTDs, 120- © strain guages, or any....
-
LM381 4 channel audio mixer circuit design project using few common electronic parts..
-
-
I`ve had a few requests for a quiz circuit, so here is a 4 input design which can easily be modified. Maybe, I should write the application notes in the style of a game show host. This design uses four IC`s and has four input circuits and four independent....
-
-
Dunlop Cry Baby Wah Wah Schematic Still its hard to be the Cry Baby sound for what it is....
-
Some lovers of High Fidelity headphone listening prefer the use of battery powered headphone amplifiers, not only for portable units but also for home "table" applications. This design is intended to fulfill their needs. An improved output driving capability....
-
-
-
-
This is a simple circuit of magnetic pickup phono preamplifier. A proper loading to a reluctance is provided by this circuit. Here is the circuit: The gain....
-
Here is a very simple infrared detector circuit which can be used to detect infrared light. The circuit is consist of only three components a RS-276-145 photo transistor, 330 Ohms resistor and a general purpose LED (Light Emitting Diode). When the photo....
-
This circuit adds some capacitors and diodes to a traditional transformer type series regulator circuit to extend the normal operating range. It can insure regulation during low line voltage conditions or it can squeeze a few more watts out of a....
-
Displays up to eight different DC voltages on CRT terminal of microprocessor under key-board control, using BASIC commands and BASIC routine given in article. Uses Motorola MC14433 modified dual-lamp integrating analog-to-digital converter. Unknown voltage....
-
-
Hi all, i`ve recently bought the dantimax thatmic pre amp and i was wondering if anyone could point me in the right direction to install a vu meter....
-
-
The overall task of the optical receiver is to extract the information that has been placed on the modulated light carrier by the distant transmitter and restores the information to its original form. The typical through-the-air communications receiver can....
-
Bike Engine transplant Central, a site devoted to the use of high powered bike engines in lightweight kitcars. Bike Engine transplant Central...
-
C1=1000 Micro Farad aluminum electrolytic capacitor (For loads less than 100mA you can sustitute with 220 microfards capacitor), Voltage rating = 2. 5 times of Output Voltage. C1 = 1000 Micro Farad aluminum electrolytic capacitor(For loads less than 100mA....
-
This is the second part of my USB tutorial for ATtiny2313 and V-USB library. In the first part we learned how to get 3. 3V from USB to power our circuits. In this part, we will expand our setup with following parts: Update: Some people have noted that the....
-
Light dimmer circuit is using to adjust the illumination of lamp. The below circuit shows the basic TRIAC triggering circuit using DIAC. Here in this circuit the light illumination is controlled using TRIAC and DIAC. The resister and capacitor are connected....
-
With this whistle light switch you can turn on and off the lighting installation. The main part of this circuit is the UM3763 IC, produced by UMC. The piezo-ceramic buzzer is used here as a microphone and when it receives a tone frequency between 1. 2 kHz....
-
LA4555 Audio Amplifier Stereo circuit and mono circuit are given in schematic .LA 4555 is basically a stereo amplifier with 2.3 watts into 4 ohms speakers at a total dis....
-
You may need also need 10 diodes and different resistors, especially if you are using white LED`s please the Troubleshooting section in step 3 for details. . 005 ³ thick matte drafting film I bought a sheet from a local artist`s supply store. The smallest....
-
Tweet Hey guys, I have a question about electronics. One project ive been intending to do is something simple: make a circuit which makes an LED flash ....
-
Place the transciever and the chip antenna very close, then there is no need for a 50 ohm transmission line right If so, can I somehow merge those two matching circuits into one and thus reducing component count..
-
The prototype circuit board used an external LCD display that received commands via an RS-232 interface. Although it worked well programming it was cumbersome. For this reason the circuit board was revised so that it would support a directly attached LCD....
-
This ultra-bright white LED lamp works on 230V AC with minimal power consumption. It can be used to illuminate VU meters, SWR meters, etc. Ultra-bright LEDs available in the market cost Rs 8 to 15. These LEDs emit a 1000-6000mCd bright white light like....
-
This circuit is a complete application is 2. 1 amp, two satellite speakers for TDA and one for the subwoofer, making the 2. 1 system, widely used in commercial applications as an amplifier for computers, which may give an increased in its audio system with a....
-
A noise generator with a wideband output signal is always handy to have around when you`re adjusting receivers and other types of HF equipment. Simple RF Noise Source Circuit Diagram: read more †’..
-
An overvoltage protection circuit is a circuit which protects electronics from excess voltage, which could potentially damage or destroy electronic components. In this project, we will build a simple, yet effective, overvoltage protection circuit using a....
-
This LED Flasher circuit is based on the 555 timer IC. The LED Flasher circuit diagram is very simple and require few external components. When the circuit is working the red LEDs will flash at a set frequency one by one like at the railway crossing....
-
-
This pdf file shows the schematic diagram of my home-built circuit to drive the PDR-56 probe. A JKL BXA-12579 inverter commonly used to drive cold-cathode fluorescent lamps is used as the high-voltage power supply. The BXA-12579 produces 1, 500 VACRMS for a....
-
Produce the varying sampling clock write strobe pulses. So, I settled with this semi-optimal but working design applying an ATtiny2313 microcontroller from Atmel. For a 10MHz sampling clock, I need a 20MHz clock for the ATtiny2313and hence it needs to be....
-
This guide will show you how to install an EDM/UKDM Honda Integra DC2 rear fog light on your 05-06 Acura RSX...
-
This device prevents paper notes and memos from being overlooked. A paper note placed between two fingers made of a conducting material (metal or conductive plastic) breaks the circuit, allowing pair 1 of Ul-a to go high. We aim to transmit more information....
-
Complete terminal unit and AFSK tone generator for VHF bands synthesizes tones digitally for 170-Hz narrow shift and 850-Hz standard shift found in VHF amateur RTTY bands. Additional feature is PLL circuit that follows drifting signal and copies signals from....
-
This article describes the Teralab Electronics projects Robert Hunt (2N2222). The content is very simple, very helpful. Components in this article can help you understand better understanding of this article. For example, in this article, you can go to find....
-
This is a one direction motion sensor circuit. This motion sensor circuit is used to detects an object passing in one direction, ignoring an object that going to opposite way. This circuit uses two sensors to identify the movement only in one direction. The....
-
-
This design replaces the incandescent bulbs in the stop, tail and indicator lights of an MZ or other motorcycle with a six-volt electrical system,with high-intensity Lumiled LEDs. This gives the following advantages: A single Lumiled with a power....
-
Dimming function opens up a completely new family of CFL applications Compact fluorescent lamps (CFLs) are replacing incandescent light bulbs at a rapid rate due to their....
-
The LTC ®3525-3/LTC3525-3. 3/LTC3525-5 are high efficiency synchronous step-up DC/DC converters with output disconnect that can start up with an input as low as 1V. They offer a compact, high efficiency alternative to charge pumps in single cell or dual cell....
-
RGB Video Amplifier with OSD Input, MM1381XD, MM1382XD and MM1383XD are wideband RGB Video Amplifiers with OSD input, developed for monitors. The main differences among them are Video amp bandwidth, output rise time, and output fall time. By Mitsumi....
-
The A1301 and A1302 are continuous-time, ratiometric, linear Hall-effect sensor ICs. They are optimized to accurately provide a voltage output that is proportional to an applied magnetic field. These devices have a quiescent output voltage that is 50% of the....
-
The system consists of two parts: the Arduino board that detects the led pulses and sends the data via the XBee module, and a PC that recive the data through a USB/Xbee module and processes the data with LabVIEW so you can prepare and study the consumption....
-
Automated frog call data loggers have been used successfully to provide information on: (1) species presence at the time of sampling (that is, species likely to be overlooked during time-constraint sampling can be recorded with greater reliability); (2) life....
-
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 adjustable analogue voltage level (in the case of a NE555 based PWM generator) or digitally using binary....
-
To power it up you need a clean stable source of 5 volts DC. This means that you either pick up a switching 5v DC power supply from our favorite JK Electronics, mail order one from Jameco or you will have to wire up a voltage regulator. Page 254 of Phys Comp....
-
Using a transistor won`t give accurate results, moreover the setting part would become very tedious. The circuit is technically correct, if you can adjust the tripping point correctly, then it might just work. Vinod: I made the charger (hysteresis) but there....
-
Using a single 555 Timer IC and a small transformer to generate a high voltage, this circuit will test zener diodes of voltage ratings up to 50VDC. The 555 timer is used in the astable mode, the output at pin3 drives a small audio transformer such as the....
-
This version of the Link is for those who really need a good cheap intercom that will work reliably, but without access to an outside Telco line. This could be in a pre school, a hobby farm or a small workshop or factory, where external phone traffic needs....
-
The circuit comprises the power supply which is formed by TR1, Q3, D13, Q1, D9 This supplies both the 12 volt rails and the five volt rails for the micro which i....
-
-
-
The circuit diagram shown here is of a simple DC power delay circuit that is based on an SCR. This circuit is a very handy one and can be employed in many applications. The working of this circuit is very simple. When the input power is applied the capacitor....
-
The PCB we have made is big and has plenty of space for cutting and adding other bits and pieces. But if we want the final satisfaction of seeing it working, mounting the lot on a real bike, it is a bit too big. Way back in chapter one, we discussed sensors....
-
Colpitts Oscillator Tutorial and the theory behind the design of the Colpitts Oscillator which uses a LC Oscillator tank circuit to generate sine waves....
-
This is a aerial affection ability accumulation with a continuously capricious stabilised achievement adjustable at any amount amid 0 and 30VDC. The ambit additionally incorporates an cyberbanking achievement accepted limiter that finer controls the....
-
In present day, variety good sensors are available to measure almost anything. In this tutorial will explore the wonderful world of sensors, starting with a very simple analog temperature sensor LM35. We will learn how to interface it with PIC MCU and....
-
Flicker free updating of analog input and status of switches using Ajax and the Arduino Ethernet Shield. The Arduino Uno is set up as a web server....
-
This circuit "cheats" by using only two J-K flip-flops to make a three-bit binary counter. Ordinarily, three flip-flops would be used - one for each binary bit - but in this case we can use the clock pulse (555 timer output) as a bit of its own. When you....
-
Feeling chirpy? Attract new friends with this modified hartley oscillator. You could also use it as a replacement doorbell....
-
A very loud sweeping siren type audio sound generator powered by 3v. The circuit uses a LTC1799 precision frequency generator from Linear Technology. A 74HC14 hex Schmitt trigger from Texas Instruments is also used to perform several other functions. One....
-
-
Using the LT3692 dual current mode PWM step-down DC DC converter circuit with two internal 3. 5A switches can be designed a very simple power supply circuit, that can be used for various electronic circuits applications like : distributed supply regulations....
-
The Dogm-graphics-module should be connected to the Arduino board as shown below. Pin 12 (MISO) of the Arduino board must not be used. Additionally the Dogm-graphics-module requires an addess line (A0) which can be connected to any output port. The following....
-
-
How often does it happen that you close down Windows and then forget to turn off the computer This circuit does that automatically. After Windows is shut down there is a click` a second later and the PC is disconnected from the mains. Surprisingly enough,....
-
With hv insulation inside ie polystyrene. If you put ferrite in it could be a way to reduce the frequency. But radiant energy won`t like copper. It`ll create a short. Just an opinion, I`ve not experimented with it - except I know ordinary cable won`t work.....
-
A milliamp meter can be used as a volt meter by adding a series resistance. The resistance needed is the full scale voltage reading divided by the full scale current of the meter movement. So, if you have a 1 milliamp meter and you want to read 0-10 volts....
-
Watch the video given below to get a better idea on how LED works A light emitting diode (LED) is known to be one of the best optoelectronic devices out of the lot. The device is capable of emitting a fairly narrow bandwidth of visible or invisible light....
-
A fan regulator circuit which can also be used as a simple lamp dimmer circuit.This fan speed regulator or light dimmer is based on power control using triac....
-
A circuit diagram for an adjustable rpm switch. It ’s something you can use to activate solenoids for auxiliary ports, VDI, shift light, or anything else you can think of. The circuit is adapted from a rev-limiter circuit for rotaries. In particular, I ’d....
-
If you want a 1MHz square wave, I would suggest using a higher frequency crystal and dividing it down, for two reasons: (1) 4MHz crystals are apt to be cheaper and easier to find than 1MHz ones; (2) Getting a 50. 0000% duty cycle from a crystal is a bit....
-
-
A Simple yet Versatile Dimming-Ballast Solution for Low-Energy Lighting EU-wide legislation promoting use of Compact Fluorescent lamps (CFLs) in place of incandescent bulbs could save as much....
-
The 60 Hz Frequency Generator circuit is very urgently needed to make the inverter or hardware related to the AC current voltage. This 60 Hz Frequency Generator is very simple and has a high accuration, the squarewave as the output which is precision. The....
-
-
This is the first oscillator I ever built. I remember looking at books and magazines, schematics on the net, etc. They wereall either colpitt or hartley oscillators. Generally speaking while they`re simple enough, they require the use of properinductors....
-
Foggers used to generate fog and smoke effects operate by heating a special fogger fluid. They consist of a heting element which is kept in the right temperature using a thermostat. When the operator want to generate smoke, he/she presses the controller....
-
This circuit will explain the PLL controller unit for the FM transmitter. It is very important since the transmitter frequency is digitally controlled and thereby very stable. The heart of this unit is a PIC processor called PIC16F870, a 2 x 16 char display....
-
An unconventional, scalable high efficiency 12V solar power system and battery charge controller withlow voltage cutout to protect thebattery. (ideal for systems of 50W or less) This circuit was designed for small to medium lead acid systems and feature a....
-
This is transistor inverter circuit diagram 100watt it sizes are easy circuit. Because of use the all transistor, have no the integrated circuit. It performs to modify from battery 12V be 220V 50Hz signal square wave. By the circuit works with transistor....
-
This schematic diagram shows a water level sensor/detector/monitor circuit. An alarm is also featured in this circuit. Any fluid with a resistance under 900K....
-
In this circuit the 555 timer is used in a novel way, as a voltage controlled switch.The old and omnipresent NE555 can be very good at someth....