New Circuits Page 168
- Page 168
-
This is a low power voltmeter circuit that can be used with alternative energy systems that run on 12 and 24 volt batteries. The voltmeter is an expanded scale type that indicates small voltage steps over the 10 to 16 volt range for 12 volt batteries and....
-
-
This be simple Adjustable voltage regulator power supply circuit, at use integrated number circuit TL431. By from the circuit can fine volt 3V - 30V, depend on....
-
The Picture beneath is shows the ambit diagram of the SPI Flash programmer accouterments interface, the ability to the interface is provided either by a 9V dc adapter or a 9V battery. The 74HCT367 IC absorber the alongside anchorage signals. It is....
-
This 3V to 24 volt variable-regulated power supply can be adjusted from 3 to 25 volts and is current limited to 2 amps as shown, but may be increased to 3 amps or more by selecting a smaller current sense resistor (0. 3 ohm). The 2N3055 and 2N3053....
-
Enter values for R1, R2, and C and press the calculate button to solve for positive time interval (T1) and negative time interval (T2). For example, a 10K resistor (R1) and 100K (R2) and 0. 1 uF capacitor will produce output time intervals of 7. 62 mS....
-
Author Mazi Hosseini describes a simple, low-cost, voltage-controlled current source using two op amps that provides a good range of current and maximum load..
-
-
Circuit shown here can be used to jam FM radios in its vicinity. The circuit is nothing but a classic single transistor oscillator operating in the VHF region. Working principle of the circuit is very simple and straight forward. Powerful VHF oscillations....
-
-
Take photos in 360 degrees. That kind of photo is actually an animation that consists of several photos of the same product but from different angles. It means that we need a device that can be controllable and that could take pictures on even intervals. As....
-
The SLA battery is charged from the vehicle s battery. When the engine is running, the voltage remains fairly constant, which greatly simplifies the charging circuit. If the SLA battery is fully charged, any further charging current from the vehicle battery....
-
I need some information about a circuito to manage ma Remote COax Ameritron RCS-10, I can`t find on google some information about a diagram....
-
-
Here is a remote tester circuit or remote checker circuit which can be used to test TV and other remote controls. The circuit is very simple using only few components. The infrared sensor used in the circuit is TSOP1738. When the IR waves received by the....
-
A power filter is a device you put ahead of something like a GPS and MP3 player and or radar detector that you have run into the Aux Circuit. But these things used properly and properly installed will take the modulator noise out of any system. If you were....
-
-
The debate still goes on as to which are better, valves or transistors. We don t intend to get involved in that argument here. But if you can t make your....
-
This article describes a lighting circuit that generates a glowing firebox effect and provides constant illumination forclassification lamps and an interior cab light. It contains all information needed to build the circuit including a detailed schematic,....
-
Simple low voltage/current power supply that can accept wide range of input voltages, up to the hundreds. Let`s say, the input is 20 to 160V DC and output has to be 10V with 20ma maximum current. Since it has to be simple, I decided that it should be some....
-
This device is designed to be a simple, inexpensive ˜comparator, intended for use in a solar cell power supply setup where a quick ˜too low or ˜just right voltage indicator is needed. The circuit consists only of one 5V regulator, two transistors, two LEDs,....
-
A single diffused, wide base transistor like the 2N3740 is recommended because it causes fewer oscillation problems than double diffused, planar devices. In addition, it seems to be less prone to failure under overload conditions; and low cost devices are....
-
Charging of the mobile phone, cellphone battery is a big problem while traveling as power supply source is not generally accessible. If you keep your cellphone switched on continuously, its battery will go flat within five to six hours, making the cellphone....
-
-
This circuit provides a cheap alternative to the LM3915 series LED displays. The meter relies on a square-wave oscillator built around two CMOS analog switches, which alternatively selects the right and left channels for monitoring and display. The selected....
-
Light Switch With Relay is a series of electronic switches that are controlled by a series of light received. Light Switch With Relay circuit can be used to control lighting automatically, so the lights can automatically turn on when the room light or the....
-
It is very easy to use and consumes so little current that it will work for the battery`s shelf life. The circuit uses a standard LM35DZ sensor (IC3) whose analogue output voltage is buffered by an LM358 (IC2A). The voltage is read by the microcontroller and....
-
-
This is a schematic diagram of general-purpose audio frequency (AF) amplifier circuit. This circuit uses cheap 1/4-W resistors, no high precision needed so....
-
Everything, it seemed, functioned normally. To me was pleased both half-duplex and work from the pedal in the telegraphic regime, when operator has the capability transferring, to listen to in the pauses of his transfer and here to pass into the usual....
-
This simple charger uses a single transistor as a constant current source. The voltage across the pair of 1N4148 diodes biases the base of the BD140 medium power transistor. The base - emitter voltage of the transistor and the forward voltage drop across the....
-
Hello all Well, i live in South Africa, and as I`m sure many of you know, we have quite a bit of crime going on. So I was looking around for some....
-
A digital temperature sensor circuit is explained with circuit diagram.ICs ADC 0804,LM35 and LM317 are used in this digital circuit project....
-
Luminescent diode LED Made of GaAs of special semiconductor material, gallium arsenide photphide, etc. can use singly, also can assemble the segment type or lattice LED display device semiconductor display device of the composition. Display unit of sectional....
-
This fm transmitter is build with UPC1651 which is a silicon monolithic integrated circuit especially designed as a wide band amplifier covering the HF ban....
-
Simulate the electric field within a gas filled discharge gap generated by a radio frequency voltage generator. The circuit, provided to me by the experimenters somewhat far away, is given in the second picture below. (Numerical values: $C1 = 22 nF=2. 2cdot....
-
LM111 comparator can be used o design a relay driver with TTL strobe, this can be used to provide more control of your relay driver. You can control the strobe....
-
Musical Doorbell Circuit Diagram This musical doorbell circuit uses UM3481 A series IC. It is intended for applications such as toys, door....
-
Good information about RF Probe Circuit. You can learn and download RF Probe Circuit online....
-
-
-
This project builds a Christmas lights controller for the GE Color Effects lights allowing programmed control of up to 8 sets of Christmas lights. Furthermore, it provides a function specific language for programming patterns for these lights and an....
-
The circuit diagram of lead acid battery charger has been described here. The core part of this circuit is the IC LM 317...
-
Another application of FVC (frequency-to-voltage converter) is tone/frequency decoder. This circuit is used to determine the frequency band of an oscillation signal. This circuit is used in many application like determines the frequency band in the signal....
-
-
To connect it to the ATMEGA168, I followed the suggestion from the datasheet: the buzzer if driven by a 2N3904 NPN transistor and a diode protects the transistor from reverse currents from the magnetic inductance. /* Setup PB1 as an output */ DDRB =....
-
-
This system, composed of two opto-insulated circuits, allows the data transmission per infra-red network device between two computers. For example, someone can transfer his files starting from his desktop computer to his laptop computer without using any....
-
This circuit was developed by Luigi Falcone, I1FLC. He uses seven plug in coils covering 3. 0 to 30Mhz in a Colpitts oscillator circuit. The coaxial socket J2 permits connection to a frequency meter when required. The coils are wound on Teflon formers with....
-
The RT320 and RT321 Clansman HF sets are designed for Upper Side Band (USB) operation only. This conflicts with the Amateur radio convention which is to use LSB on bands below 10MHz. In both radios the IF used for SSB generation is 1. 7500 MHz and there is a....
-
This simple tone control can be used in may audio applications. It can be added to amplifers, used as a stand alone control module, or even built into new and exciting instruments. It`s one IC construction makes it a very compact circuit, as only a few....
-
Samsung C3330 Circuit Diagram Download Manual PDF Download...
-
The purpose of this circuit is to animate shop-windows by means of a capacitive sensor placed behind a post-card-like banner. The card is placed against the glass inside the shop-window, and the visitor can activate the relay placing his hand on the card,....
-
This 12V power inverter circuit can be used to power small power devices that need a 240 volts. It is very useful when you want to use a 240 volts consume....
-
This electronic lie detector circuit project will give two readings: one for difficult questions for the subject and another to show its emotional state in....
-
The herein schematic shows FAN5009 dual bootstrapped 12V high frequency MOSFET driver typical application circuit. It can be formed a complete core voltage regulator for microprocessors if combined with multi-phase PWM controller and power MOSFETs, according....
-
This page describes the construction of an electric field mill. This is a device to measure the electric field strength on earth due to the static electric field and the charge of clouds passing overhead. It can also be used to investigate static electricity....
-
Video recorder, DVD player and TV game, have component video output. The component video signal is like RGB video signal, but it cannot connect to RGB monitor...
-
Laser Design an efficient reciever/collector that could withstand a beam hitting it (maybe an enormous photomultiplier array ), and use a beam mode and wavelength that isn`t easily attenuated. And in that case you`d go for the explosive bursts of option 1.....
-
We have modified the schematic diagram above with the addition of a 220uF smoothing capacitor between the base of transistor Q1 and ground. Without this capacitor, the relay chatter (relay switching on and off many times per second) was terrible around the....
-
The solid-state, unity-gain power buffer is easy to imagine, as many already exist. But what about corresponding tube equivalents Have they been made Could one be made Actually, super cathode followers (complex-and-augmented cathode followers with a gain of....
-
This novel circuit uses a flashing LED as the clock input for a 4017 decade counter. Typical flashing LEDs (eg, DSE cat Z-4044) flash at about 2Hz so the outputs Q0-Q9 will cycle through at that rate. For example, Q0 will turn on for half a second, then Q1,....
-
As high-performance microprocessors demand more power in auto multimedia and telematics, (aka infotainment products), so do some of the well-known problems like noise susceptibility, EMI and loop compensation to name a few. Average current-mode control....
-
An audio power amplifier circuit for 3 watts stereo amplifier using max 7910 IC is explained below....
-
Transistor RC phase shift oscillator . RC phase shift oscillator using opamp. RC phase shift network. Theory and working principle. circuit diagram....
-
Today we come to see the circuit detects the light by have a voice warn. When meet the light or be become dark depend on using S1 ( follow the circuit )..
-
Discusses the future direction of the Free Charge Controller project and proposes a new solar charge controller circuit....
-
A constant off-time control which provide a high efficiency over a wide range of output current can be used by the LT3463A dual micropower DC/DC converters with internal Schottky Diodes, as described in the following circuit diagram and the datasheet..
-
This audio mixer circuit schematic we propose here is built around four amplifiers, which are current controlled, all of them incorporated in IC SSM2024, p....
-
ADC 207 is the first to use Flash Converting An Advanced High Speed VLSI 1. 2 micron CMOS process. The process that is able to do the ADC 207 as mentioned earlier is very great and makes the ADC 207 is unique. The speed of the process of this ADC has a good....
-
An op-amp based Colpitts oscillator in multisim. When I press run button it shows- "timestep too smaall error". I`ve googled and tried everything but it still shows the error. Not sure where you got that design, but as drawn your C-L-C pi circuit is grounded....
-
Varies speed and direction of 5-amp reversible series ac motor in accordance with d-c control signal. Polarity of control signal determines direction of rotation. Gain potentiometer adjusts slope of speed versus control voltage curve. -M. P. Southworth,....
-
I have one Meanwell LED driver of 27V, 2300mA on hand and will be running 2 strings of 6 LEDs in parallel. Should I follow the same circuit with same component value or should I need to change the value of the resistors to my configuration "The addition of a....
-
DCF77 Preamplifier Circuit DiagramA popular project among microcontroller aficionados is to build a radio-controlled clock. Tiny receiver boards are available, with a pre-adjusted ferrite antenna, that receive and demodulate the DCF77 time signal broadcast....
-
The following circuit shows about 2 Way Switch Wire Electrical Circuit Diagram. Features: for switch on the lights using S1, three terminals ....
-
A unijunction transistor (UJT) is an electronic semiconductor device that has only one junction. The UJT has three terminals: an emitter (E) and two bases (B1 and B2). The base is formed by lightly doped n-type bar of silicon. Two ohmic contacts B1 and B2....
-
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....
-
Life in the 21st century would be almost unbearable without some of the computer peripherals that PC users now look on as essentials - take for example the USB powered teacup warmer; this device is obviously an invaluable productivity tool for all users but....
-
This circuit above uses a 13 volt zener diode, D2 which provides the voltage regulation. Aprroximately 0. 7 Volts are dropped across the transistors b-e junction, leaving a higher current 12. 3 Volt output supply. This circuit can supply loads of up to 500....
-
When a new computer modem enters the household, the demands on the home phone line skyrockets. The Internet surfer can use phone time on a par with the most talkative teenager. And the computer modem user can be quite sensitive about his privacy: simply....
-
There are many measurement system that would be more suitable if we use logarithmic scale, especially when we try to mimics human sensory response. Most....
-
In these times with viruses and other threats from the Internet it would be nice to have reassurance that the PC cannot be infected. That is why this circ....
-
This is Wide band high frequency amplifier circuit,Wide frequency band between 75-150 MHz,Using transistors, a PNP amplifier.To enhance the signal strength.Before the receiver of the phone. Or FM radio or amateur radio. If high-frequency signals, in....
-
-
-
The circuit is built around popular CMOS oscillator-cum-divider IC 4060 and small audio amplifier LM386. IC 4060 is used as the multitone generator. A 100 H inductor is used at the input of IC 4060. So it oscillates within the range of about 5MHz RF. IC 4060....
-
To assure that USB and serial segments are electrically isolated, we used an optocoupler (U1). The LED section of U1 is driven directly by DTR, so we should select a very sensitive optocoupler to prevent too much current flow from DTR (which is usually very....
-
Microcontrollers & Microprocessors - The 8051 projects Page! Find out all our information on 8051 projects here. Everything you wanted to know about 8051 projects but were afraid to ask!....
-
A simple low end Audio Function Generator. I want to be able to use the Sine Wave output to test ADC resolution and as a base band signal for RF projects and having very Low Total-Harmonic-Distortion (THD) would be nice. So I`ve decided to build my own....
-
-
This circuit is used for remote photographic flash units that flash at the same time as the flash attached to the camera.This circuit is designed to the trigger cord or hot shoe connection of a commercial portable flash unit and triggers the unit from the....
-
Here`s a simple schematic of one of the parts, the idea is that if the probed voltage is below half point, one LED will be on, otherwise second one will be on. Also, now I think I`ll need to oompff the power on this thing, proper dc motor with some gearbox....
-
-
-
-
This is a Simple Phono Preamplifier Circuit Diagram. In recent years, following CD`s introduction, vinyl recordings are almost disappeared. Nevertheless, a phono preamplifier is still useful for listening old vinyl discs from a well preserved collection.....
-
This is designed to be used as a programmable LED display for numerous applications. I also wanted to include some additional features so that the display can be used instantly. The display uses a sure 8 x 32 LED dot matrix. This is interfaced to a Xino (or....
-
It is well known that through such simple everyday activities as walking on a carpet or moving in a chair, the body accumulates a static charge - sometimes many thousands of volts. Due to its extreme sensitivity, this circuit will detect not only such....
-
This DIY magnetic field sensor circuit is very simple and can detect fixed magnetic fields or fields that are varying at an audio frequency. The unit is not intended to provide accurate measurement of magnetic field strength. A small and not very powerfull....
-
-
-
Simple IR capture for multitasking operating systems The IR Widget captures the infrared signals used by remote controls. It operates in a way that makes i....
-
The touch control screen is not any fresh thing, present electronic product basically all have a colored liquid crystal greatly, add a touch type touch control screen. It is very convenient to use, can totally replace that kind of fixed key set in the past.....