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Circuit shown in Figure 3-86. The line utilization time relay to control two motors, one of the first than the other after starting stall. Adjust the time relay KTi, two electr..
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The DSC Sine and DRC Random vibration controller cards have current sources on the two inputs available for powering integrated accelerometers without requiring external power supplies. These current sources have an 18 VDC open circuit voltage and output 4....
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Here i propose a project of an AB class power amplifier, at its simplest, assembled with common compoments (not very expensive), based on traditional diagrams : a symmetrical differential input stage, a cascode stage driver and a MOSFET output stage. The....
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While the normal PC hardware might well run with just Tx, Rx and Ground connected, most driver software will wait forever for one of the handshaking lines to go to the correct level. Depending on the signal state it might sometimes work, other times it might....
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Here is an efficient 4-stage stabilised power supply unit for testing electronic circuits. It provides well regulated and stabilised output, which is essential for most electronic circuits to give proper results. The circuit provides an audio-visual....
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Build Your Own Door Bell Chime using 555 timer integrated circuit, a speaker, 5 resistors, 4 electrolytic capacitors, 1 ceramic capacitor, 3 diodes, 1 pushbutton switch and 9 V battery as power supply....
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TDA2030 is a circuit integrated monolithic in Pentawat ® package, to be used as class audio amplifier AB. Typically he supplies up to 14 Watts of potency (d=0. 5%) @ 14V/4 ©. The guaranteed potency is 12W in a load of 4 © and 8 watts in a load of 8 ©.....
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The all-transistor T3SE works much like a conventional SE: like the Tritium, it fires when the charging current drops below the minimum and after the circuit triggers, positive feedback is used to latch the circuit, resetting at a fixed voltage on the main....
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According to the TEA5711 datasheet, there are necessary functions such from AM and FM front end to AM detector and FM stereo output stages are integrated in this TEA5711 AM/FM stereo radio circuit. The circuit diagram above shows TEA5711T with stereo....
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If 12V relays are used, you can replace the 180R resistors R7,R9,R14,R16,R20,R22,R26 and R28 with a wire link (the resistors are only there to limit current if you use 5V relays, of which I had a load in my parts bin). If the system doesn't reset cleanly on....
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A simple yet effective circuit to generate a POTS-compatible ringing voltage can be made from National Semiconductor`s LM4871 audio-amplifier IC and a dozen passive components ( see the figure ). This circuit delivers 1 W of sine-wave output at about 70 V....
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This circuit measures the distance covered during a walk. Hardware is located in a small box slipped in pants' pocket and the display is conceived in the following manner: the leftmost display D2 (the most significant digit) shows 0 to 9 Km. and its dot is....
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The best human ear can capture sounds from 20Hz to 20KHz. These limits are known to be the broadest that can exist. Normally the normal limits range from 100Hz to about 13KHz and depend on the age and health of the individual. We for our measurements and to....
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This article explains the specifications and characteristics of crystals and crystal oscillators, and aids in specifying crystals and working with crystal vendors. The article covers the significant performance characteristics of crystals, which include....
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An interesting DC/DC converter IC is available from Linear Technology. The LT1615 step-up switching voltage regulator can generate an output voltage of up to +34V from a +1. 2 to +15V supply, using only a few external components. The tiny 5-pin SOT23 package....
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The following circuit shows about PIR Sensor Timer Circuit Diagram. Features: simple circuit, more accurately, efficient. Component: Diode, ....
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It uses two LM358 op amp A2 and Ar as an upper limit and a lower limit voltage electrical voltage measurement comparison control circuit. RPi adjustment potentiometer and RP2, can change the upper limit voltage and lower voltage setting...
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A typical DVD switching power supply circuit Is shown in digital products standby power supply circuit, which uses switching power supply structure, the oscillation switch IC T..
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Are you familiar with the basics and applications of the 555 timer IC Are you looking for a book that provides all these basics If so, CircuitsToday has started an online store from where you can buy books on 555 timer IC, which have been reviewed in detail.....
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The circuit shown in the schematic diagram below is an isolated dc-to-dc step up converter. Being isolated means that there is no electrical connection between....
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This circuit came out of some work I did for the two antenna analysers which are described elsewhere on this site. Those instruments both include an RF signal generator. This is used as the signal source to drive the impedance bridge and detectors used to....
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Examine a traditional Hartley oscillator circuit, and you`ll note its trademark: a tapped inductor that determines the frequency of oscillation and provides oscillation-sustaining feedback. Although you can easily calculate the total inductance required for....
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Analog baseband digital circuit table of contents:, Emi interface, BPI bus, Jtag, LCD interface, keypad, UART, mint, Gpio, and Mcp keypad, audio, RF, I/O connectorPower cones, serial time, battery charging and analog, Led driver, RF control, Jtag, iota,....
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A 2000 GMC Yukon Denali that is intermittently losing power to the radio, power windows and wipers. I know these are all fed from the RAP relay but I find it hard to believe the relay could be failing at such random intervals with no apparent pattern. Could....
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As shown in FIG variety of low-frequency waveform generating circuit. The circuit can simultaneously output two waveforms that triangle and square waves. Circuit, a first integ..
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The op-amp IC1D shapes the frequency response to amplify those frequencies produced when motion is detected and rejects all others, such as those due to noise or slow temperature changes. When IC1D outputs a voltage higher than 1. 67V, it forces pin 8 and....
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IC4, C1, R1 and R2 are used for the clock pulse which is fed to both the counters IC2 and IC3 Pin 14. IC1 is a Flip Flop and is used as a switch to enable ether IC2 or IC3 at pin 13. IC7a detects when ether IC2 or IC3 has reached Q9 of the counter pin 11.....
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This is audio meter that can be monitored using a small panel meter with this circuit built from discrete components. The audio level meter circuit has a flat frequency response from about 20Hz to well over 50Khz. Input sensitivity is 100mV for a full scale....
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The FM transmitter circuit here works in the broadcast band 88 to 108MHz, and can be used to broadcast audio signals for remote listening. The output power....
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A Class A // Class AB amplifier rated 100 Watts when driving a 4 ohm loudspeaker. This circuit developed out of my 30+ years of JLH class-A based investigations. The original `simple` 1969 JLH class-A design provided excellent first cycle accuracy through....
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Electric sewing machine saving circuit as shown, line the main elements by the Hall switch IC IC and relay K composition. Closing switch os, power-on, after R, and Ci RC Buck, ..
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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....
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This be Simple Doubler Voltage circuit, from voltage 12VDC to be 24VDC. By use Timer IC highly popular the number NE555 and other equipment a little again. It can give current get about 50mA convenient for the circuit, that use low current the small-sized.....
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Take a V2-400 and use the sub-woofer amplifier for the center channel. Then add a separate Digital Converter just for the added sub-woofer amplifier and you have the starting of a V5. 1. Next, put all the preamplifiers in the sub-woofer box and make a....
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Amplifier capable of driving a voltage gain of about 20 MPS6517 PNP type emitter electrode group is. RI controller can change the static point of the transistor Q, which is to ..
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If you ever thought of experimenting with pulse-width modulation, this circuit should get you started nicely. We`ve kept simplicity in mind and used a dual 555 timer, making the circuit a piece of cake. We have even designed a small PCB for this, so building....
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This circuit was in EDN`s "design ideas" section in the March 5, 2007 issue. It`s a fairly simple circuit and an easy way to investigate how the inductance of a toroid (or any core) is changed by saturation, which in this case is caused by applying a current....
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Using the LTC4060 integrated circuit, can be designed a very simple smart NiMH battery charger electronic project. This electronic charger circuit project is a complete fast charging system for NiMH or NiCd batteries. This NiMH battery charger circuit....
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This smoke detector electronic project is designed using LM1801 and common electronic parts. Smoke detector circuit diagram below does not use ionization detection, gas or optocouplers it use two photoresistors (LDR`s) and an LED. The circuit uses a pair....
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Hi Sluts! long time lurker here, a while ago i bought 4 of those old amps for the case, and with my limited knowledge of old equipement, i never realy....
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The LT3494/LT3494A are low noise boost converters with integrated power switch, Schottky diode and output disconnect circuitry. The parts use a novel* control technique resulting in low output voltage ripple as well as high ef ¬ciency over a wide load....
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With all the holidays upon us, understandably some of us will be drinking alcoholic beverages. This circuit can be used as a guideline how much you have had to drink and how good your reaction time is. This circuit does not tell you whether you are over the....
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1. Full 5 watt output using a power MOSFET final that is resistant to high SWR and thermal runaway. This final is very efficient and runs much cooler than traditional bipolar designs. 2. Highly sensitive and selective superhetrodyne....
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This circuit shows about 4060IC For Timed Beeper Electronic Circuit Diagram. Features: suitable for table games requiring a fixed time to answer a ....
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A lambda probe (or oxygen sensor) can be found on the exhaust system of most cars running on unleaded fuel. Having reached its normal operating temperatur....
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Using a 6BW6 vacuum tube, the above transmitter delivers about 5 W output. CI is adjusted for cleanest CW note. C8 and C9 are 365 pF and dual-365 pF (paralleled) tuning capacitors. LI is 35 turns of #24 enamelled wire on a 1 plastic tube. FT-243 crystals....
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As shown in FIG grounds HMC1001 and an operational amplifier (AMP04) and light emitting diode (LED) constituting the proximity switch circuit. As used herein, the op amp as a c..
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The TL3103 linear Hall-effect device can be used as a compass. By definition, the north pole of a magnet is the pole that is attracted by the magnetic north pole of the earth. The north pole of a magnet repels the north-seeking pole of a compass. By....
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As shown in Figure 567 FM demodulation circuit. The figure, the FM signal from the input pin 3, the demodulated signal output from 5 feet. FM demodulation circuit can signal ce..
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The circuit uses a CA3130 BiMOS op amp as a multivibrator to control the siren's rate. A CA3094 used as a VCO is followed by a CA3082 transistor array used to drive a speaker. A "Manual" or "Auto" mode switch allows the user to select either intermittent or....
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Description: 1995 Toyota Supra Electrical Circuit Diagram. Features: shown from the point where the power source is received from the battery as far as each ....
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As electric utility companies grapple with the need to reduce greenhouse gas emissions and the increasing costs and lead-times for introducing new generating capacity they are turning to the concept of the smart grid. One of the core elements of the smart....
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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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4 Stage FM transmitter circuit diagram. It uses four radio frequency stages: a VHF oscillator built around transistor BF494 (T1), a preamplifier built around transistor BF200 (T2), a driver built around transistor 2N2219 (T3) and a power amplifier built....
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This small FM transmitter includes a limiter, a microphone amplifier and a PLL digital tuning. All the parts are placed on one circuit board. The RF power is switchable between 1 W (HI) and 0,2 W (LO). Technical specifications: Supply voltage: 12 V from....
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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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The mixer appearance two stereo phono inputs and two stereo line-level inputs and has one stereo bond channel. A microphone ascribe and a stereo capital achievement with adjustable accretion are additionally provided...
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This circuit yearn for act the performance of the equipment, otherwise Check the fuse here the circuit. The circuit is diminutive and the power supply voltage of all kinds. It demonstrate with LED, 2-color in individual. Which is cathode universal kind, the....
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A diagram of an active loudspeaker. The LF353 of, National Semiconductor, is going to split audio signal into three bands. SANYO LA47536 is going to amplify these signals. In stereo mode, we shall have the action of eight high speakers who are going to....
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This unique circuit makes your dome light look cool. Usually when the car door is closed, the dome light just goes OFF. With this circuit, you can have our dome light fade slowly in brightness and finally go OFF. This slow dimming of the light gives a very....
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Modification of basic speed control circuit for small DC permanent-magnet motors provides maximum current limit under normal conditions and reduced current limit under stall conditions, to limit dissipation of series transistor Q4, to safe value. When motor....
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The circuit includes Better channel separation, resulting in an increased stereo effect, as well as reduced noise and hum. This schematic will allow you to cancel or blend left and rigth channels of your stereo. Uses the LM4136 but at the circuit is a 741....
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Here is the circuit diagram of an easy subwoofer filter that can be operated from a 12V DC supply. Such a circuit is incredibly helpful in automobile subwoofer applications. The circuit is nothing however a low pass filter whose pass frequency can be....
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I decided to implement this using a PIC 16F84 for both an encoder and decoder, and use RS-485 drivers (DS26C31 and DS26C32) to drive the 350m cable. I only needed five I/O pins per PIC, so this could have been implemented using the smaller 8pin 12C508....
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Circuit from the main circuit, trigger circuit, speed negative feedback, negative feedback differential voltage, current cut-off circuit, loss of field protection and other com..
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This circuit is that the traditional tungsten filament lamp amplitude regulator is eliminated along with its time constant and linearity problems. In addition, the reliability problems associated with a lamp are eliminated. The Wien Bridge oscillator is....
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Arduino is an open-source electronics prototyping platform based on flexible, easy-to-use hardware and software. It`s intended for artists, designers, hobbyists, and anyone interested in creating interactive objects or environments. Arduino can sense the....
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stepper motor interfacing with microcontroller. Full step and half step stepper control. working and basics of stepper motor. 6 lead unipolar stepper motor tutorial, Bipolar Stepper Motor tutorial....
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Below is the schematic diagram of an audio input module. We can produce a DC output voltage that is proportional to the input signal amplitude (the signal....
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This kind of sensor switch is suitable for making touch operated bells, buzzers of small toys which operate for a small time and then switch off automatically. The input impedance of the trigger is very high and the touch sensor switch can be triggered by....
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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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The following diagram is the FM transmitter circuit with FM transmision up to 4W. Voltage supply for this circuit is 12-16V with current consumption of 100-400mA. This circuit works with frequency of emission range of 88-108MHz. Components....The circuit is based on an inverting op amp using discrete transistors to overcome poor slew rate, fairly high distortion, and high noise problems. The output stage is driven by a constant current source, biased by a green LED to provide temperature....Using only an 8-pin IC and a few discrete components, you can build the infrared optical interrupter. The NE567..This simple circuit can be used to control the volume of PC speaker. The volume can be adjusted to any value between total silence and full volume...Hello All Experts, i m in need of Transistor Ignition to replace point breaker from my motorcycle. i read many many articles in internet google and almost all forums but did not yet found working and simples smallest circuit yet. and which i found they dont....If you are looking for a micro mixer circuit that create a simple, affordable, small and compact, and be usable versatile, must be this circuit. We can use to mix up to four input channels such as the microphone signal, FM Tuner, AUX and Other signals, As....The Sun - Up Alarm can be used to provide a audible alarm for when the sun comes up or it can be used in a dark area and detect when a light comes on. It can also be used to detect a light beam, headlights etc. The circuit works as follows. The....The afterward diagram is the four bandage blaster circuit. Blaster is about acclimated to advance the allegiance of sound, to accent assertive instruments, to abolish causeless noises, or to actualize absolutely new and altered timbres..This circuit is the opposite of Repeating Timer No.3 . Its operation can be limited to the hours of darkness. Again - the variable resistor (preset) lets you choose the level of darkness at which the timer will begin to function....Conventional single junction transistor trigger circuit can only be issued narrow pulse, the reason is because the single-junction transistor is turned quickly cut stop. To do this in a single-junction transistor trigger circuit adds a PNP transistor can be....The oscillator provides a 1MHz and a 1khz clock. The 1MHz clock is used as the clock for the microcontroller and as timebase for millisecond measurement. I use a 2MHz and divide it by 2 in order to guarantee a 50% duty cycle. Then three halve HC390 are used....Here is information on how to build a diy time lapse circuit which will allows a camera to automaticly take photos between a certain time interval. Those photos then can be then to create time lapse film. It is used in this circuit a 2, 5 to 3, 5 stereo....This is high frequency switch circuit. This circuit uses the 2N4391. When it is off, it will provide a high off-impedance (<0.2pF) and low on-resistance of....It`s a slight redesign of a board I did before last year`s AVC. What`s it for Not telling yet. :) I can say this. It`s an Arduino clone that will speak serial on one set of pins via NewSoftSerial and I2C on the standard set of pins. It has an FTDI header for....This antenna selector circuit diagram electronic project is designed using common electronic components and allows switching between two FM antennas via a logic signal. Gates IC1b and IC1a provide switching and interface between the logical form of 5 and 12....Many times we needed to use a simple circuit of preamplifier, with few components and facility of made. This circuit use a opamp. the Motorola, TCA5550, that contains a double amplifier, as outputs for the adjust of volume, balance, treble and bass. These....The ISL6315 two-phase PWM control IC provides a precision voltage regulation system for advanced loads up to 60A to 80A. Multiphase power conversion is a marked departure from single phase converter configurations employed to satisfy the increasing current....The Keypad must be the kind with a common terminal and a separate connection for each key. On a 12-key pad, look for 13 terminals. The matrix type with 7 terminals will NOT do. The Alarm is set by pressing a single key. Choose the key you want to use and....This tiny pH-meter is very tiny: 11cm2 including the PSU circuit! I built it for the College Saint Pierre a few years ago. It is based on a circuit developped at the Facultes Notre-Dame de la Paix, Namur, Belgium. I modified several components to allow a....