New Circuits Page 44
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This article explains What is inverter And how can you construct your own simple low cost 12V to 220V inverter circuit. An inverter is nothing but a DC to AC converter. Inverters are very useful electronics products for compensating emergency power failure,....
-
-
Diagram shows an R-C-Diode circuit giving full half-cycle control (180 electrical degrees). On the positive half-cycle of SCR anode voltage the capacitor charges to the trigger point of the SCR in a time determined by the RC time constant and the rising....
-
The 50W Power Amplifier OCL Mosfet (K1058 + J162) is easy to build, and very inexpensive. To use Power Supply +35V -35V at 2A. Power Mosfet (K1058 + J162) must....
-
-
The The reciprocating detector was designed by R. S. Badessa at M. I. T. The RD features a carrier-synthesized reference signal and requires no external bfo. The circuit offers advantages over conventional detectors in that it adjusts its bfo level....
-
The guitar is a wonderful musical instrument which is capable of providing both melody and rhythm. However, every guitar player would have experienced the problem of low volume. The guitar is rarely heard unless the surroundings are absolutely quiet! To....
-
-
This ice warning and lights reminder electronic project circuit diagram will tell a driver if his lights should be on and will warn him if the outside temperature is nearing zero by lighting a LED and sounding a buzzer. Using the VR1 you can adjusts....
-
I Just finished my newest version of the "baby 10 sequencer". It has control voltage and gate switches. I found some problems with it, and subsequently this module. I will be posting some modifications in the next few days. In preparation of improving my....
-
The fridge cut in and the lights got brighter. I thought we were imagining it but we watched for several cycles, and it kept happening. Then we tried turning on the microwave, and the lights got dimmer. But the fridge definitely made it get brighter. I think....
-
Quiz-type game shows are increasingly becoming popular on television these days. In such games, fastest finger first indicators (FFFIs) are used to test the player`s reaction time. The player`s designated number is displayed with an audio alarm when the....
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-
-
By using a relay, you shorten the distance that you must pull the thick wires (especially through the firewall and under the dash), and you reduce the need for a larger switch. However, having said that, if you plan to connect to any of the stock JK....
-
My Friend need to like a Pulse Generator Oscillator circuit that stable frequency at 32.768KHz,for digital cmos binary counter, so he tell to me even low....
-
-
I am trying to get to the bottom of some low RPM problems and wanted to get some expert opinions before i start cutting wire looms apart to trace a....
-
This is a simple RF receiver mainly for low-distance digital radio receiver application. The analog output of this circuit should be connected to a schmitt-trigger signal conditioning circuit with a proper value capacitor (from collector of T3). L1 for 27Mhz....
-
In some electronic applications we need to switch or control high voltages or high currents. In these cases we may useelectromagnetic or solid state relays. For example, it can be used to control home appliances using low power electronic circuits.....
-
The AM Transmitter circuits in two and a half, audio amplifier and an RF oscillator. The oscillator is built around Q1 and associated components. Tank circuit L1 and VC1 is melodious from about 500kHz to 1600KHz. These components can be used from an old MW....
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The idea behind this post is to bring together some robot designs and trasform them in a new device with new hardware and standard software (arduino of course) and so easier to use. These robots have three things in common: a mechanical structure, the....
-
Off line Telephone tester. Here is a circuit of an off-line telephone tester which does not require any telephone line for testing a telephone instrument. The circuit is so simple that...
-
This is an astable multivibrator? (oscillator) circuit using CMOS inverter. This circuit uses CD4007 or MC14007. This circuit has operating frequency range of ...
-
-
Integration of 1200V SOI gate driver ICs into a medium power IGBT module package A novel approach for medium power....
-
The wide-range current pump for the precision phase locked loop circuit is a semiprecision circuit, and provides an output current proportional to -V1, give or take 10 or 15%, over a 3-decade range. The 22 MW resistors prevent the current from shutting off....
-
Here is a very easy and useful schematic of an LED dimmer circuit. The circuit is using a famous voltage regulator IC LM317T. This IC can also be used as a current regulator, like it is used in the following circuit. In this circuit we have used 10 super....
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LM1800 is an integrated FM stereo demodulator IC which has a number of good features integrated on it which makes it possible to design a high quality FM stereo demodulator system with excellent sound quality. The LM 1800 uses phase locked loop technology to....
-
Multi Switch Controlled Relay circuit is used to control home appliance circuit diagram with description of multi switch controlled relay utilization 1 IC various control IC...
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A typical SCR (silicon-controlled rectifier) requires a trigger current, which causes the SCR structure to latch on. Once the device latches, the current through the SCR is solely a function of external component values. The SCR has no inherent ability to....
-
A modulated current is provided by the integrated rotational speed sensor KMI 15/x. This current signal must be converted to ground referenced voltage signal,...
-
-
This featured circuit is a musical doorbell. After the button S1 is pressed, a short melody is played. When the button is pressed many times in rapid succession or pressed longer, a different melody is generated and the melody plays longer. The circuit works....
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-
The extension port has an important role. Depending on the application several extension boards can be put in the socket. Extension boards for LCD and domestic (relays, temperatur and light sensors, opto decoupled inputs) are under development. Sheet 1 shows....
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Crystal oscillator, especially the low frequency one, can be easily implemented using op-amp as the amplifier. Here is the schematic diagram of such circuit:....
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This Open Source thread is for the advancement of a ""Mosfet Heating Circuit"" one that is a modified replication of one....
-
Some serious overengineering was required to match my previous capacitive scanner. At the local hackerspace OSAA I went on to start a brainstorm with pedersen, AsbjG rn and Flemming, who promptly came up with a lot of funnyideas. All nice and well until....
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Figure (a) and (b) show the two 2MHZ basic oscillator circuits. According to the circuit structure, it can adjust its best operating point by testing....
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An Arduino running on 2 or 4 rechargeable NiMH AA batteries. I say 2 because I might boost up the voltage to what`s needed. My problem is that this project will sometimes be plugged in and I would like the batteries to be able to charge during that time.....
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-
This one is particularly loud even though it runs on only two AA batteries. It uses a push-pull transformer output. This unit was manufactured with the 10K resistor at pin 4 instead of pin 3 due to a PCB layout error:..
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The values of LM56 Thermostat project Circuit diagram of R1, R2 and R3 for the points of travel, VT1 and VT2 can be determined using the subsequent equations. This thermostat of electronic circuit with IC LM56 diagram what simple project, you can use as....
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LM1036 Stereo Tone ( Bass, Treble, Volume, Loudness, Balance ) Controller Circuit The LM1036 is a DC controlled tone (bass/treble), volume and....
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-
-
Once the case temperature reaches 250C the device must be derated up to a maximum case temperature of 1500C, insuring the junction temperature remains below the maximum permissible temperature. MIL-PRF-19500/543; Semiconductor Device, Transistor, Field....
-
This low-voltage high-current output, sWitching de power supply is running off the 220-Vac input. In this circuit, an ST2 diac relaxation oscillator, Q3, Cl, and the diac, initiates conduction of the output switching transistor Ql, the on-time of which is....
-
This is a simplified design using a up/down counter IC, 74192. It is a versatile logic IC that has a separate pins for up and down count. Also, an RS latch is used for the indicator of the counter number. ..
-
This circuit enables you to test quartz resonators at the range values from 32kHz to 24MHz. Confirmation of good state of quartz resonator is done by diode signalling LED and acoustic signal....
-
The RC transmitter uses a potentiometer for each axis, it acts as a voltage divider sending a voltage of 0. 5V (the middle position corresponds to 2. 5V) to the analog input that is converted into a pule of 1. 2ms that is sent over RF. This module converts....
-
We have adopted the one-chip computer, utilize the advantage of the one-chip computer to design this survey meter. This survey meter can read out the resistance quantity measured from LCD display screen directly, the measurement limit is 10 2. 9999k, can....
-
A typical Colpitts oscillator design. This circuit is very similar in operation to the Hartley oscillator described in Oscillators Module 2. 1 but the Colpitts LC tank circuit consists of a single inductor and two capacitors. The capacitors form in effect, a....
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This timer circuit is similar to the 5 to 30 minute timer except that when switch S1 is closed, the on/off action of the circuit will continue indefinitely until S1 is opened again. A 7555 time and low leakage type capacitor for C1 must be used. The 6 way....
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We are planning to use a Programmable Logic Device to control our seven-segment displays. This will be accomplished by using the 8 outputs from the Analog to Digital converter as the inputs to the PLD, and by having the PLD generate 14 outputs to drive the 7....
-
We propose a comprehensive design procedure to design Field-programmable/Reconfigurable Analog Integrated CMOS circuits. Instead of repeatedly iterative simulation steps to achieve desired design specifications by fine tuning the W/L ratios of the FETs, we....
-
As circuit power-supply voltages decrease and green energy trends grow in popularity, designers should re-examine some of the circuits that continually consume power, in an effort to reduce overall system power consumption. One circuit that requires....
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Program an ATmega1284p with my AVR Dragon and the Arduino IDE. So far I have installed mighty1284p, after writing my sketch. I compile it using the Arduino IDE and then cd into the (temporary) directory the sketch is build in. It contains the. hex file, as....
-
-
-
It is very interesting project with many practical applications in security and alarm systems for homes, shops and cars. It consists of a set of ultrasonic receiver and transmitter which operate at the same frequency. This is a one design circuit for the....
-
UHF antenna booster can be used for better reception, especially when you`re far from TV station / relay transmitter. This UHF antenna booster works in 400-850...
-
Join the forum discussion on this post This is a simple home telephone ringtone generator circuit which is built with applying only several electronic components / parts. It generates simulated telephone ringtone and requires only DC supply....
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This display driver circuit shows how a Seven Segment Display is driving with the help of the 5 stage Johnson decade counter IC CD4033.The IC has counter a....
-
-
Add a simple, low-cost, jack-sensing circuit (JACKSENSE) to a DirectDrive automotive headphone amp and detect when a headphone is inserted into the audio jack....
-
Got a 89 s10, 4. 3 with auto trans. someone else pulled the motor I got stuck trying to put it back together. Only problem I have is the starter wiring. Solanoid has one big terminal(goes to hot side of the batt) and one small one with a "S" which I figure....
-
Ticking Bomb sound generator circuit diagram. The circuit gets going by charging the 2. 2uF and when 0. 65v is on the base of the NPN transistor, it begins to turn on. This activates the BC557 and the voltage on the collector increases. This forces the small....
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I would like to learn if this circuit will invert the input signal or not. The opamp is single supplied, and supply voltage is 5V. The input signal is varying between 0V and 5V. What happens the the output voltage if the signal is inverted I think, if you....
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This transformerless power supply circuit is designed for medium current applications. During the negative half period, the capacitor C5 is charged to peak voltage network. Transformerless Power Supply Circuit Schematic The positive half wave will open the....
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Transistors T1 and T2 form the mic preamplifier. Resistor R1 gives the required bias for the mic condenser whilst preset VR1 works as gain control for adjusting its gain level. As a way to boost the audio power, the low-level audio output from the....
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-
Fuse Cum Power Failure Indicator employs thermister and timer IC NE555 circuit diagram with parts list of fuse cum power failure indicator indicate power failure...
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This is the circuit diagram of linear FM Booster / RF amplifier based 2N4427 Philips transistor. The RF Amplifier is for boosting small fm transmitters and bugs. It use two Philips 2N4427 and its power is about 1Watt. At the output you can drive any linear....
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A 99 nissan sentra 1. 6 I recently put a new motor in and I have no power to my coil. I have changed all sensors back to my origanal. I do have ignition power and power to the crank sensor. It sounds like there is an open circuit from the ignition switch to....
-
This circuit indicates which of three voltages in the range from about about -4V to about +4V at A, B and C is the highest by lighting one of three in....
-
We can use this circuit diagram to adjust the speed of a low-power induction motor, such as those which can be found in fan application. The function of...
-
-
This site covers a variety of topics related to circuits and electronics. Some of the topics covered on this site are: * Alternating Relay Switch * Photoswitch Rela....
-
This is an AC powered LED flasher that can drive two High bright LEDs directly from the power obtained from the AC lines. The high bright LED flasher can b....
-
This project is an older design and has most likely been superceded by a newer one. However, it is still a viable design and useful for your home-brew synth. Sorry but most of these do not have circuit descriptions, parts lists or PC board layouts (They....
-
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. ..
-
Here is the circuit diagram of a guitar preamplifier that would accept any standard guitar pickup. It is also versatile in that it has two signal outputs. A typical example of using a pick-up attached to a guitar headstock is shown in Fig. 1. The pickup....
-
-
In Circuit Transistor Tester Schematic Here is a circuit that can indicate the condition of a transistor by using two LEDs. A good NPN transistor....
-
-
A motor spins the "propeller", and a small microprocessor keeps track of time and changes the pattern on seven LEDs with exact timing to simulate a 7 by 30 array of LEDs. It is an illusion, but it works nicely. Propeller clocks were to my knowledge first....
-
-
The simplest way to drive stepper motor having lower current rating is using ULN2003. The ULN2003 contains seven darlington transistors. The ULN2003 can pass upto 500mA per channel and has an internal voltage drop of about 1V when on. It also contains....
-
The user selects a game to play and presses the power button on the Nintendo. 1 or 2 player games may be selected. Once the game has loaded, using the game controller allows for standard game play. As long as the viewer only touches the joystick and buttons....
-
-
-
-
-
A gyrator is a circuit using active devices and transistors to simulate an inductor. In this case the gyrator is the transistor acting with R1, R3 and C2. It could just as easily be a unity gain op-amp (which gives superior performance). The circuit includes....
-
-
Virtually all AM radio manufacturers used this exact circuit from about 1948 to 1963 or so. People are starting to collect these radios as antiques of sorts. I would be happy to credit the creator of this figure and caption, but I don`t recall from where I....
-
-
The purpose of this project is to visually communicate the effects that frequencies have with each other. By expressing these frequencies into mirrors and magnets that have a laser beam shining across creates a visual representation of that electronics is....
This article explains What is inverter And how can you construct your own simple low cost 12V to 220V inverter circuit. An inverter is nothing but a DC to AC converter. Inverters are very useful electronics products for compensating emergency power failure,....
Diagram shows an R-C-Diode circuit giving full half-cycle control (180 electrical degrees). On the positive half-cycle of SCR anode voltage the capacitor charges to the trigger point of the SCR in a time determined by the RC time constant and the rising....
The 50W Power Amplifier OCL Mosfet (K1058 + J162) is easy to build, and very inexpensive. To use Power Supply +35V -35V at 2A. Power Mosfet (K1058 + J162) must....
The The reciprocating detector was designed by R. S. Badessa at M. I. T. The RD features a carrier-synthesized reference signal and requires no external bfo. The circuit offers advantages over conventional detectors in that it adjusts its bfo level....
The guitar is a wonderful musical instrument which is capable of providing both melody and rhythm. However, every guitar player would have experienced the problem of low volume. The guitar is rarely heard unless the surroundings are absolutely quiet! To....
This ice warning and lights reminder electronic project circuit diagram will tell a driver if his lights should be on and will warn him if the outside temperature is nearing zero by lighting a LED and sounding a buzzer. Using the VR1 you can adjusts....
I Just finished my newest version of the "baby 10 sequencer". It has control voltage and gate switches. I found some problems with it, and subsequently this module. I will be posting some modifications in the next few days. In preparation of improving my....
The fridge cut in and the lights got brighter. I thought we were imagining it but we watched for several cycles, and it kept happening. Then we tried turning on the microwave, and the lights got dimmer. But the fridge definitely made it get brighter. I think....
Quiz-type game shows are increasingly becoming popular on television these days. In such games, fastest finger first indicators (FFFIs) are used to test the player`s reaction time. The player`s designated number is displayed with an audio alarm when the....
By using a relay, you shorten the distance that you must pull the thick wires (especially through the firewall and under the dash), and you reduce the need for a larger switch. However, having said that, if you plan to connect to any of the stock JK....
My Friend need to like a Pulse Generator Oscillator circuit that stable frequency at 32.768KHz,for digital cmos binary counter, so he tell to me even low....
I am trying to get to the bottom of some low RPM problems and wanted to get some expert opinions before i start cutting wire looms apart to trace a....
This is a simple RF receiver mainly for low-distance digital radio receiver application. The analog output of this circuit should be connected to a schmitt-trigger signal conditioning circuit with a proper value capacitor (from collector of T3). L1 for 27Mhz....
In some electronic applications we need to switch or control high voltages or high currents. In these cases we may useelectromagnetic or solid state relays. For example, it can be used to control home appliances using low power electronic circuits.....
The AM Transmitter circuits in two and a half, audio amplifier and an RF oscillator. The oscillator is built around Q1 and associated components. Tank circuit L1 and VC1 is melodious from about 500kHz to 1600KHz. These components can be used from an old MW....
The idea behind this post is to bring together some robot designs and trasform them in a new device with new hardware and standard software (arduino of course) and so easier to use. These robots have three things in common: a mechanical structure, the....
Off line Telephone tester. Here is a circuit of an off-line telephone tester which does not require any telephone line for testing a telephone instrument. The circuit is so simple that...
This is an astable multivibrator? (oscillator) circuit using CMOS inverter. This circuit uses CD4007 or MC14007. This circuit has operating frequency range of ...
Integration of 1200V SOI gate driver ICs into a medium power IGBT module package A novel approach for medium power....
The wide-range current pump for the precision phase locked loop circuit is a semiprecision circuit, and provides an output current proportional to -V1, give or take 10 or 15%, over a 3-decade range. The 22 MW resistors prevent the current from shutting off....
Here is a very easy and useful schematic of an LED dimmer circuit. The circuit is using a famous voltage regulator IC LM317T. This IC can also be used as a current regulator, like it is used in the following circuit. In this circuit we have used 10 super....
LM1800 is an integrated FM stereo demodulator IC which has a number of good features integrated on it which makes it possible to design a high quality FM stereo demodulator system with excellent sound quality. The LM 1800 uses phase locked loop technology to....
Multi Switch Controlled Relay circuit is used to control home appliance circuit diagram with description of multi switch controlled relay utilization 1 IC various control IC...
A typical SCR (silicon-controlled rectifier) requires a trigger current, which causes the SCR structure to latch on. Once the device latches, the current through the SCR is solely a function of external component values. The SCR has no inherent ability to....
A modulated current is provided by the integrated rotational speed sensor KMI 15/x. This current signal must be converted to ground referenced voltage signal,...
This featured circuit is a musical doorbell. After the button S1 is pressed, a short melody is played. When the button is pressed many times in rapid succession or pressed longer, a different melody is generated and the melody plays longer. The circuit works....
The extension port has an important role. Depending on the application several extension boards can be put in the socket. Extension boards for LCD and domestic (relays, temperatur and light sensors, opto decoupled inputs) are under development. Sheet 1 shows....
Crystal oscillator, especially the low frequency one, can be easily implemented using op-amp as the amplifier. Here is the schematic diagram of such circuit:....
This Open Source thread is for the advancement of a ""Mosfet Heating Circuit"" one that is a modified replication of one....
Some serious overengineering was required to match my previous capacitive scanner. At the local hackerspace OSAA I went on to start a brainstorm with pedersen, AsbjG rn and Flemming, who promptly came up with a lot of funnyideas. All nice and well until....
Figure (a) and (b) show the two 2MHZ basic oscillator circuits. According to the circuit structure, it can adjust its best operating point by testing....
An Arduino running on 2 or 4 rechargeable NiMH AA batteries. I say 2 because I might boost up the voltage to what`s needed. My problem is that this project will sometimes be plugged in and I would like the batteries to be able to charge during that time.....
This one is particularly loud even though it runs on only two AA batteries. It uses a push-pull transformer output. This unit was manufactured with the 10K resistor at pin 4 instead of pin 3 due to a PCB layout error:..
The values of LM56 Thermostat project Circuit diagram of R1, R2 and R3 for the points of travel, VT1 and VT2 can be determined using the subsequent equations. This thermostat of electronic circuit with IC LM56 diagram what simple project, you can use as....
LM1036 Stereo Tone ( Bass, Treble, Volume, Loudness, Balance ) Controller Circuit The LM1036 is a DC controlled tone (bass/treble), volume and....
Once the case temperature reaches 250C the device must be derated up to a maximum case temperature of 1500C, insuring the junction temperature remains below the maximum permissible temperature. MIL-PRF-19500/543; Semiconductor Device, Transistor, Field....
This low-voltage high-current output, sWitching de power supply is running off the 220-Vac input. In this circuit, an ST2 diac relaxation oscillator, Q3, Cl, and the diac, initiates conduction of the output switching transistor Ql, the on-time of which is....
This is a simplified design using a up/down counter IC, 74192. It is a versatile logic IC that has a separate pins for up and down count. Also, an RS latch is used for the indicator of the counter number. ..
This circuit enables you to test quartz resonators at the range values from 32kHz to 24MHz. Confirmation of good state of quartz resonator is done by diode signalling LED and acoustic signal....
The RC transmitter uses a potentiometer for each axis, it acts as a voltage divider sending a voltage of 0. 5V (the middle position corresponds to 2. 5V) to the analog input that is converted into a pule of 1. 2ms that is sent over RF. This module converts....
We have adopted the one-chip computer, utilize the advantage of the one-chip computer to design this survey meter. This survey meter can read out the resistance quantity measured from LCD display screen directly, the measurement limit is 10 2. 9999k, can....
A typical Colpitts oscillator design. This circuit is very similar in operation to the Hartley oscillator described in Oscillators Module 2. 1 but the Colpitts LC tank circuit consists of a single inductor and two capacitors. The capacitors form in effect, a....
This timer circuit is similar to the 5 to 30 minute timer except that when switch S1 is closed, the on/off action of the circuit will continue indefinitely until S1 is opened again. A 7555 time and low leakage type capacitor for C1 must be used. The 6 way....
We are planning to use a Programmable Logic Device to control our seven-segment displays. This will be accomplished by using the 8 outputs from the Analog to Digital converter as the inputs to the PLD, and by having the PLD generate 14 outputs to drive the 7....
We propose a comprehensive design procedure to design Field-programmable/Reconfigurable Analog Integrated CMOS circuits. Instead of repeatedly iterative simulation steps to achieve desired design specifications by fine tuning the W/L ratios of the FETs, we....
As circuit power-supply voltages decrease and green energy trends grow in popularity, designers should re-examine some of the circuits that continually consume power, in an effort to reduce overall system power consumption. One circuit that requires....
Program an ATmega1284p with my AVR Dragon and the Arduino IDE. So far I have installed mighty1284p, after writing my sketch. I compile it using the Arduino IDE and then cd into the (temporary) directory the sketch is build in. It contains the. hex file, as....
It is very interesting project with many practical applications in security and alarm systems for homes, shops and cars. It consists of a set of ultrasonic receiver and transmitter which operate at the same frequency. This is a one design circuit for the....
UHF antenna booster can be used for better reception, especially when you`re far from TV station / relay transmitter. This UHF antenna booster works in 400-850...
Join the forum discussion on this post This is a simple home telephone ringtone generator circuit which is built with applying only several electronic components / parts. It generates simulated telephone ringtone and requires only DC supply....
This display driver circuit shows how a Seven Segment Display is driving with the help of the 5 stage Johnson decade counter IC CD4033.The IC has counter a....
Add a simple, low-cost, jack-sensing circuit (JACKSENSE) to a DirectDrive automotive headphone amp and detect when a headphone is inserted into the audio jack....
Got a 89 s10, 4. 3 with auto trans. someone else pulled the motor I got stuck trying to put it back together. Only problem I have is the starter wiring. Solanoid has one big terminal(goes to hot side of the batt) and one small one with a "S" which I figure....
Ticking Bomb sound generator circuit diagram. The circuit gets going by charging the 2. 2uF and when 0. 65v is on the base of the NPN transistor, it begins to turn on. This activates the BC557 and the voltage on the collector increases. This forces the small....
I would like to learn if this circuit will invert the input signal or not. The opamp is single supplied, and supply voltage is 5V. The input signal is varying between 0V and 5V. What happens the the output voltage if the signal is inverted I think, if you....
This transformerless power supply circuit is designed for medium current applications. During the negative half period, the capacitor C5 is charged to peak voltage network. Transformerless Power Supply Circuit Schematic The positive half wave will open the....
Transistors T1 and T2 form the mic preamplifier. Resistor R1 gives the required bias for the mic condenser whilst preset VR1 works as gain control for adjusting its gain level. As a way to boost the audio power, the low-level audio output from the....
Fuse Cum Power Failure Indicator employs thermister and timer IC NE555 circuit diagram with parts list of fuse cum power failure indicator indicate power failure...
This is the circuit diagram of linear FM Booster / RF amplifier based 2N4427 Philips transistor. The RF Amplifier is for boosting small fm transmitters and bugs. It use two Philips 2N4427 and its power is about 1Watt. At the output you can drive any linear....
A 99 nissan sentra 1. 6 I recently put a new motor in and I have no power to my coil. I have changed all sensors back to my origanal. I do have ignition power and power to the crank sensor. It sounds like there is an open circuit from the ignition switch to....
This circuit indicates which of three voltages in the range from about about -4V to about +4V at A, B and C is the highest by lighting one of three in....
We can use this circuit diagram to adjust the speed of a low-power induction motor, such as those which can be found in fan application. The function of...
This site covers a variety of topics related to circuits and electronics. Some of the topics covered on this site are: * Alternating Relay Switch * Photoswitch Rela....
This is an AC powered LED flasher that can drive two High bright LEDs directly from the power obtained from the AC lines. The high bright LED flasher can b....
This project is an older design and has most likely been superceded by a newer one. However, it is still a viable design and useful for your home-brew synth. Sorry but most of these do not have circuit descriptions, parts lists or PC board layouts (They....
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. ..
Here is the circuit diagram of a guitar preamplifier that would accept any standard guitar pickup. It is also versatile in that it has two signal outputs. A typical example of using a pick-up attached to a guitar headstock is shown in Fig. 1. The pickup....
In Circuit Transistor Tester Schematic Here is a circuit that can indicate the condition of a transistor by using two LEDs. A good NPN transistor....
A motor spins the "propeller", and a small microprocessor keeps track of time and changes the pattern on seven LEDs with exact timing to simulate a 7 by 30 array of LEDs. It is an illusion, but it works nicely. Propeller clocks were to my knowledge first....
The simplest way to drive stepper motor having lower current rating is using ULN2003. The ULN2003 contains seven darlington transistors. The ULN2003 can pass upto 500mA per channel and has an internal voltage drop of about 1V when on. It also contains....
The user selects a game to play and presses the power button on the Nintendo. 1 or 2 player games may be selected. Once the game has loaded, using the game controller allows for standard game play. As long as the viewer only touches the joystick and buttons....
A gyrator is a circuit using active devices and transistors to simulate an inductor. In this case the gyrator is the transistor acting with R1, R3 and C2. It could just as easily be a unity gain op-amp (which gives superior performance). The circuit includes....
Virtually all AM radio manufacturers used this exact circuit from about 1948 to 1963 or so. People are starting to collect these radios as antiques of sorts. I would be happy to credit the creator of this figure and caption, but I don`t recall from where I....
The purpose of this project is to visually communicate the effects that frequencies have with each other. By expressing these frequencies into mirrors and magnets that have a laser beam shining across creates a visual representation of that electronics is....
