New Circuits Page 46
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This scheme applies amplifier OpAmp LM301 to awaken square wave that is simple. LM301 applies power allowance 3 V - 36 V, with highest frequency 325 kHzs. Oscillation frequency given in equation. where f is Hertz, R in Ohm, C in Farad. Active Pressure C1....
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PICkit 2 Introduction: There are many PIC programmer available, commercial and DIY devices. As Microchip introduces the new microprocessors the prog....
-
-
The Lambda II is based upon the Atmel 8535 chip, which operates at 4 MHz and contains 8K of RAM. This chip was chosen over other brands such as Motorola or Pic, because the circuit used to program it using a computer is very simple to build. This results in....
-
This 15v variable power supply electronic project is designed using 2N3055 transistors. Output voltage of this variable power supply can be adjusted in the range between 1. 5 and 15 volts. This 2N3055 15v variable power supply can provide a maximum current....
-
This circuit generates a two-tone effect very much alike the cuckoo song. It can be used for door-bells or other purposes thanks to a built-in audio amplifier and loudspeaker. Used as a sound effect generator it can be connected to external amplifiers, tape....
-
Circuit KA2211 stereo audio power amplifier schematics Circuit Electronics, This amplifier circuit has a stereo output with a power output of 2 x 5.8 Watt with impedance 4. The frequency response from 30Hz up to 20kHz. amplifier circuit base....
-
With the help of this DC drill speed controller circuit you can control the number of revolutions of your drilling machine. A mini-drill machine is always....
-
-
This project shows you how to build simple flashing light based on IC 555. The 555 has function as clock generator with dutycyle less than 100 and more than 50. The other components are Voltage regulator, 3 power amber LED and passive component like resistor....
-
-
This article describes some simple FM direct conversion radio receivers with phase-locked loop (PLL). This receivers uses the method of locking the local oscillator frequency with the input signal [1]. All this FM receivers are based on the circuit shown in....
-
Imagine that is morning , you barely anticipate the bus for work and you can`t find your keys. If you suffer from this situation frequently, this circuit is ideal for you. A fizzle is the only thing you have to do. The overall circuit is small enough to....
-
-
CMOS circuits are known for their low current consumption. This is particularly important for battery-powered circuits. Unfortunately, oscillators often r....
-
A "servo slower" which has now evolved into a Servo Controller. `Servo slower` units are used to reduce the slew-rate (traverse time) of proportional servos. The most common use in model boats is to control the rotation of a servo-controlled gun turret,....
-
useful to make a constant speed motor control. Which means the speed will stay constant despite of load and electric voltage change. Component: ...
-
Here`s a dual-band Regen that came from some encouraging emails from Jerry (K9UT) and another gentleman named Harvey, who built my original AGC-80, and its experimental "Regenerodyne" successor, the AGC-80/30. Jerry and I have corresponded on several....
-
The article shows a circuit idea which incorporates an innovative way of detecting the minutest of shocks caused by a possible earthquake tremor. The circuit is so sensitive that it is able to detect tremor of 4 on the Richter scale, yet remains unaffected....
-
The purpose of this circuit is to power a lamp or other appliance for a given time (30 minutes in this case), and then to turn it off. It is useful when reading at bed by night, turning off the bedside lamp automatically in case the reader falls asleep.....
-
-
The 555 IC is wiredin monostable mode of operation. Please read the article Monostable Multivibrator using 555 Timer for more details. In this mode the output is LOW (0V) when there is no triggering, when it istriggeredvia 2nd pin the output goes HIGH (Vcc)....
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-
Here is the circuit diagram of a simple 24W mono amplifier using IC TDA1516. The TDA1516 is an integrated class B power amplifier in a 13 pin SIL package. The IC has many useful features such as short circuit protection, load dump protection, thermal....
-
Build a 10W LED flashlight that features swappable UV/IR/visible heads. We decided to document the build since this flashlight would fit nicely in a photographer`s kit for light painting, IR illumination, UV reflected photography, or UV fluorescence....
-
This lie detector circuit described eally give two readings: one for the difficult questions and one show subject general emotional state. As electrodes can be used two flexible wires, uninsulated wrapped around the fingers or wrist. Each change of....
-
The circuit shown here is of a good Stereo FM transmitter that can transmit high quality signals up to a range of 70 feet. The circuit is based on BH1417 PLL stereo transmitter IC from Rhom semiconductors. The IC has separate audio processing sections for....
-
Many of us who invested in Prologic decoders are now looking at Dolby Digital. New formats like DSS, DVD-Video and High Definition Television incorporate this new technology; but what about the old laserdisc format After all, more than 600 laserdiscs feature....
-
BPS Servo Controller -Digital is total metering and control solution for servo stabilizers for wide range of input voltage and wide range of load requirement. This reducesproduction overheads like wiring and testing and increases productionrate of the....
-
-
An year ago, I`ve shared a circuit of USB li-ion charger based on LM358opamp. The circuit had some problems as reported by commentators that inclide wrong direction of LEDs. Don`t post your email or phone number in the comment box. Only put email address in....
-
Create simple Hello world example of serial comm to a PC using microcontroller USART...
-
We created an RC Car that can identify a parking space and parallel park by itself. The RC Car drives down a street searching for a parking space to its right using a distance sensor. When the car has identified a space, the car checks to see whether that....
-
Heat sensor circuit can be used to control any device using heat sensor. In this circuit a thermistor and a resistance is connected in series. This arrangement makes a potential divider circuit. Here the thermistor is Negative Temperature Coefficient type.....
-
Power a rs232-TTL converter circuit using the serial port so i dont have to have an external power supply to do the job. I read somewhere that the DTS, RTS and TD pins are able to do this. As I am already using the TD pin to send out data, is there any other....
-
Tons of LED Projects to spark your creativity. Light Emitting Diodes are simple to use and make your DIY electronic projects look great....
-
The 555 is proved to be the most versatile and ubiquitous IC all over the world.This is a possible use: simple inverting schmitt trigger....
-
-
-
Simple FM stereo decoder circuit using MC1310P IC. 12V operation, 40dB channel seperation. Suitable for stereo FM receivers....
-
-
-
Hartley Oscillator Tutorial and the theory behind the design of the Hartley Oscillator which uses a LC Oscillator tank circuit to generate sine waves....
-
-
Stepper motors are available in several versions and sizes with a variety of operating voltages. The advantage of this general-purpose controller is that....
-
A very simple 5 volt constant voltage, constant current (CV/CC) universal-input power supply for cell phone or similar charger applications can be designed using the LNK616PG product from the LinkSwitch-II family. As you can see in the circuit diagram, this....
-
-
The following applications circuits are intended to illustrate the following points: A 2-KO resistor should be in series with V to limit supply current with negative ringing oi the bit. inputs. Temperature compensation for Rns(on) can be provided in the....
-
This is a selection of small self-contained alarm circuits. They have a very low standby current; and are suitable for battery operation. Some are triggered by normally-open and normally-closed switches. Some react to changes in light or temperature. The....
-
The circuit of a FM Tracking Transmitter Circuit or Remote Control Transmitter Circuit is explained using 555 IC and and 2N4392 transistors....
-
The heart of this circuit is IC No. 555. When the alert sound was working, even though the switch will continue to be the same, the sound still does not stop immediately. But it will stops automatically, when a set time period, Depending on the resistance of....
-
Long distance infrared transmitter circuit diagram. Here is a simple circuit that will give you a pretty long range. It uses three infrared transmitting LEDs (IR1 through IR3) in series to increase the radiated power. Further, to increase the directivity and....
-
-
Portable Mic Pre-amp 2 transistor using BC549C, BC547B The electret condenser microphone or microphone`s dynamic range contains a very sensitive....
-
This circuit is designed to be used with the Universal Keypad Operated Switch. A few genuine mistakes - made during code entry - will not activate the device. But repeated attempts to find the correct code by trial and error - will cause the keypad to....
-
The LM317T is an extremely common positive voltage regulator - many laboratory supplies and other equipment are based on it. It can produce any amount between 1. 25V and up to 35V by adjusting the resistance (opposition to current) between its adjustment pin....
-
Meteoplug is a client-server. The client application needs minimal storage and computing power, which allows for embedding into "computers" of minimal size and with minimal power demands down to1 watt(depending on efficiency of power supply itcan be 1-2....
-
Hey another cool thing I found is that if you earth both the earth of the circuit to ground and the other end of the antenna to a separate ground, you increase the power dramaticaly, compared to using a normal antenna and coil. I made a similar coil to the....
-
-
A solar powered Flasher to scare away the nocturnal animals like bats and cats from the farm yard or premises of the house. The brilliant multicolored flashes confuse these animals and they avoid the hostile situation. It is fully automatic, turns on in the....
-
if you are not getting anything at 66 RED then that is a problem. You could have your dash light dimmer turned to the "OFF" position. Or the corrosion on the wiper for the rheostat could be so bad it can`t make contact...
-
This is a design circuit for stereo encoder. This circuit is using BH1417 Stereo Encoder. This circuit using with pre-emphasis, limiter so that the music can be transmitted at the same audio level, low pass filter that blocks any audio signals above 15 KHz....
-
-
-
A very good 1 watt fm transmitter circuit, very easy to build circuit. It has 4 transistors, one is a very stable oscillator, followed by a buffer stage to prevent frequency variation when you adjust the transmitter. Next is a resonance stage and the final....
-
The sawtooth signal generated by this simple circuit is synchronized with the power line frequency. It is originally designed to control triac circuits but it can be used for other special applications. The supply voltage is highly flexible and can be any....
-
Vacuum tubes represent an electronic technology whose roots extend a century and more into the past. With the exception of their continued use in certain niche applications, they have all but vanished from contemporary electronics, having been replaced by an....
-
Perhaps the trickiest part in building a solid state tesla coil is the bridge or switching circuit. The bridge switching circuit is the heart of t....
-
This house FM transmitter for your stereo or any other amplifier provides a good signal strength up to a distance of 500 meters with a power output of about 200 mW. It works off a 9V battery. The audio-frequency modulation stage is built around transistor....
-
This manual is for use by authorised Sinclair dealers. engineers and representatives as a guide to rectifying faults on the Sinclair ZX Printer. Repair/renewal procedures are limited to those which are specific to this printer; standard procedures for the....
-
This Wien bridge oscillator uses incandescent lamp to stabilize its amplitude. This amplitude stabilization gives a low distortion output. Multiple frequency....
-
All ground point in the circuit should be connected in a single point and ground it(If possible) or connect in transformer`s 0 marked wire as shown in the circuit...
-
Last year I built and reviewed the low cost Oatley Electronics K272 Tube Stereo Headphone Amplifier Kit. In conversation with Oatley Electronics (located in New South Wales Australia), they told me that the kit became very popular and sold pretty much all....
-
Infrared Remote Control for operates on 115 volts AC. This circuit will allow you to turn on any piece of equipment that operates on 115 volts ac. The receiver circuit is based on the Radio Shack infrared...
-
We are surrounded by battery operated equipment of all kinds, and this array is growing still. Manufacturers and designers lean over backwards to make sure that their equipment draws a small current and can thus be operated by a battery. This has its flip....
-
-
The circuit that I`ve described is a one-JFET design without much gain. You can significantly boost the gain by adding a source resistor bypass capacitor. The result would be something like one stage of the original tube preamp in a guitar amplifier. Next,....
-
It needs 2 volts as its threshold however, that only allows a small amount of curent to flow through the transistor. How do I know how much voltage I need to make it fully on. Also, how do I determine what type of resistor to use from the 5V GPIO pin to the....
-
The LM4610 is a DC controlled Tone (bass/treble), volume and balance circuit for stereo applications in car Radio TV and Audio systems. It also features Nationals 3D-Sound Cir- cuitry which CAN be externally adjusted via a simple RC Net- work. An additional....
-
A Power Transistor which is having a drop of 4 Volts across it and passing 3 amps thru it, may dissipate around 12 Watts of Heat, This is the problem in Series Regulators. While a Saturated Transistor or Mosfet with 1 Volts across and 3 Amps Thru will be....
-
-
This circuit came from a need for a "quick and dirty" network tester that could be operated by one person. All the commercial units I tried required a person at the other end to check the remote LEDs, as the transmitters could not be made to cycle through....
-
-
-
Toyota Mrs Exterior Lights Wiring Diagram Manual PDF Download...
-
Voltage Doubler circuit and Voltage Inverter circuit diagram with schematics using MAX660 IC -which is a DC voltage multiplier IC. This is a dc voltage doubler circuit and inverter....
-
-
Many passive field strength meters have appeared in the past, typically using a 50mA analog meter movement if reasonable sensitivity was to be obtained. T....
-
This is Circuit DC to DC Converter. For input DC12V-24V 4A to Output 24V-48V 2A (inputX2) Use easy circuit simple part IC Digital Cmos : 40106 and Mosfet....
-
As long as we have a stable voltage reference, a stable voltage source can be produced by amplifying the reference. LM10 provide both the reference and the....
-
This audio-video circuit provides you with wireless audio and visual transmission to a TV. The TV acts as a receiver, eliminating the need to buy a separate monitor. You can also hook it up to a VCR or CCD Camera, and even set up a remote CCTV security....
-
Connect a 12 volt 20 watt lamp and 12 volt battery to the circuit (observe battery polarity). Momentarily press and release the button to turn the lamp on. Repeatedly press the button to cycle through the power levels. Pressing and holding the button will....
-
Welcome to the weblog where we discuss about electronic circuits schematics, PCB design, diy kits and electronic projects diagrams. The following is a small audio amplifier comparable to what you may come across a small transistor radio medium size. The....
-
In this project, all we do is hook up the positive side of the battery to the positive lead of the buzzer and the negative side of the battery to the negative lead of the buzzer. The positive lead of the buzzer many of the times is a red color and the....
-
An introductory post on how to use serial communication in PIC Micrcontrollers to send data to PC. What comes first in your mind when you listen serial communication ? Yes, how to send data in series. All this time you have been working single bits, turning....
-
Stepper motors are available in several versions and sizes with a variety of operating voltages. The advantage of this general-purpose controller is that is can be used with a wide range of operating voltages, from approximately 5 V to 18 V. It can drive the....
-
Everything works just great. The final software is 930 lines of assembler. I also learnt how to use ProTel so I could draw up the final circuit properly. Here`s the result. Notice that I`ve got it down to just one chip now, the little PIC is doing....
-
Typical current = 0. 7Amps with no user I/O connected. More current may be required dependent on the amount of Digital I/O and Analog +/- 15V consumed by the user. Up to 2 watts of +/-15 volts is generated on board from this 5V supply (most of which is....
This scheme applies amplifier OpAmp LM301 to awaken square wave that is simple. LM301 applies power allowance 3 V - 36 V, with highest frequency 325 kHzs. Oscillation frequency given in equation. where f is Hertz, R in Ohm, C in Farad. Active Pressure C1....
PICkit 2 Introduction: There are many PIC programmer available, commercial and DIY devices. As Microchip introduces the new microprocessors the prog....
The Lambda II is based upon the Atmel 8535 chip, which operates at 4 MHz and contains 8K of RAM. This chip was chosen over other brands such as Motorola or Pic, because the circuit used to program it using a computer is very simple to build. This results in....
This 15v variable power supply electronic project is designed using 2N3055 transistors. Output voltage of this variable power supply can be adjusted in the range between 1. 5 and 15 volts. This 2N3055 15v variable power supply can provide a maximum current....
This circuit generates a two-tone effect very much alike the cuckoo song. It can be used for door-bells or other purposes thanks to a built-in audio amplifier and loudspeaker. Used as a sound effect generator it can be connected to external amplifiers, tape....
Circuit KA2211 stereo audio power amplifier schematics Circuit Electronics, This amplifier circuit has a stereo output with a power output of 2 x 5.8 Watt with impedance 4. The frequency response from 30Hz up to 20kHz. amplifier circuit base....
With the help of this DC drill speed controller circuit you can control the number of revolutions of your drilling machine. A mini-drill machine is always....
This project shows you how to build simple flashing light based on IC 555. The 555 has function as clock generator with dutycyle less than 100 and more than 50. The other components are Voltage regulator, 3 power amber LED and passive component like resistor....
This article describes some simple FM direct conversion radio receivers with phase-locked loop (PLL). This receivers uses the method of locking the local oscillator frequency with the input signal [1]. All this FM receivers are based on the circuit shown in....
Imagine that is morning , you barely anticipate the bus for work and you can`t find your keys. If you suffer from this situation frequently, this circuit is ideal for you. A fizzle is the only thing you have to do. The overall circuit is small enough to....
CMOS circuits are known for their low current consumption. This is particularly important for battery-powered circuits. Unfortunately, oscillators often r....
A "servo slower" which has now evolved into a Servo Controller. `Servo slower` units are used to reduce the slew-rate (traverse time) of proportional servos. The most common use in model boats is to control the rotation of a servo-controlled gun turret,....
useful to make a constant speed motor control. Which means the speed will stay constant despite of load and electric voltage change. Component: ...
Here`s a dual-band Regen that came from some encouraging emails from Jerry (K9UT) and another gentleman named Harvey, who built my original AGC-80, and its experimental "Regenerodyne" successor, the AGC-80/30. Jerry and I have corresponded on several....
The article shows a circuit idea which incorporates an innovative way of detecting the minutest of shocks caused by a possible earthquake tremor. The circuit is so sensitive that it is able to detect tremor of 4 on the Richter scale, yet remains unaffected....
The purpose of this circuit is to power a lamp or other appliance for a given time (30 minutes in this case), and then to turn it off. It is useful when reading at bed by night, turning off the bedside lamp automatically in case the reader falls asleep.....
The 555 IC is wiredin monostable mode of operation. Please read the article Monostable Multivibrator using 555 Timer for more details. In this mode the output is LOW (0V) when there is no triggering, when it istriggeredvia 2nd pin the output goes HIGH (Vcc)....
Here is the circuit diagram of a simple 24W mono amplifier using IC TDA1516. The TDA1516 is an integrated class B power amplifier in a 13 pin SIL package. The IC has many useful features such as short circuit protection, load dump protection, thermal....
Build a 10W LED flashlight that features swappable UV/IR/visible heads. We decided to document the build since this flashlight would fit nicely in a photographer`s kit for light painting, IR illumination, UV reflected photography, or UV fluorescence....
This lie detector circuit described eally give two readings: one for the difficult questions and one show subject general emotional state. As electrodes can be used two flexible wires, uninsulated wrapped around the fingers or wrist. Each change of....
The circuit shown here is of a good Stereo FM transmitter that can transmit high quality signals up to a range of 70 feet. The circuit is based on BH1417 PLL stereo transmitter IC from Rhom semiconductors. The IC has separate audio processing sections for....
Many of us who invested in Prologic decoders are now looking at Dolby Digital. New formats like DSS, DVD-Video and High Definition Television incorporate this new technology; but what about the old laserdisc format After all, more than 600 laserdiscs feature....
BPS Servo Controller -Digital is total metering and control solution for servo stabilizers for wide range of input voltage and wide range of load requirement. This reducesproduction overheads like wiring and testing and increases productionrate of the....
An year ago, I`ve shared a circuit of USB li-ion charger based on LM358opamp. The circuit had some problems as reported by commentators that inclide wrong direction of LEDs. Don`t post your email or phone number in the comment box. Only put email address in....
Create simple Hello world example of serial comm to a PC using microcontroller USART...
We created an RC Car that can identify a parking space and parallel park by itself. The RC Car drives down a street searching for a parking space to its right using a distance sensor. When the car has identified a space, the car checks to see whether that....
Heat sensor circuit can be used to control any device using heat sensor. In this circuit a thermistor and a resistance is connected in series. This arrangement makes a potential divider circuit. Here the thermistor is Negative Temperature Coefficient type.....
Power a rs232-TTL converter circuit using the serial port so i dont have to have an external power supply to do the job. I read somewhere that the DTS, RTS and TD pins are able to do this. As I am already using the TD pin to send out data, is there any other....
Tons of LED Projects to spark your creativity. Light Emitting Diodes are simple to use and make your DIY electronic projects look great....
The 555 is proved to be the most versatile and ubiquitous IC all over the world.This is a possible use: simple inverting schmitt trigger....
Simple FM stereo decoder circuit using MC1310P IC. 12V operation, 40dB channel seperation. Suitable for stereo FM receivers....
Hartley Oscillator Tutorial and the theory behind the design of the Hartley Oscillator which uses a LC Oscillator tank circuit to generate sine waves....
Stepper motors are available in several versions and sizes with a variety of operating voltages. The advantage of this general-purpose controller is that....
A very simple 5 volt constant voltage, constant current (CV/CC) universal-input power supply for cell phone or similar charger applications can be designed using the LNK616PG product from the LinkSwitch-II family. As you can see in the circuit diagram, this....
The following applications circuits are intended to illustrate the following points: A 2-KO resistor should be in series with V to limit supply current with negative ringing oi the bit. inputs. Temperature compensation for Rns(on) can be provided in the....
This is a selection of small self-contained alarm circuits. They have a very low standby current; and are suitable for battery operation. Some are triggered by normally-open and normally-closed switches. Some react to changes in light or temperature. The....
The circuit of a FM Tracking Transmitter Circuit or Remote Control Transmitter Circuit is explained using 555 IC and and 2N4392 transistors....
The heart of this circuit is IC No. 555. When the alert sound was working, even though the switch will continue to be the same, the sound still does not stop immediately. But it will stops automatically, when a set time period, Depending on the resistance of....
Long distance infrared transmitter circuit diagram. Here is a simple circuit that will give you a pretty long range. It uses three infrared transmitting LEDs (IR1 through IR3) in series to increase the radiated power. Further, to increase the directivity and....
Portable Mic Pre-amp 2 transistor using BC549C, BC547B The electret condenser microphone or microphone`s dynamic range contains a very sensitive....
This circuit is designed to be used with the Universal Keypad Operated Switch. A few genuine mistakes - made during code entry - will not activate the device. But repeated attempts to find the correct code by trial and error - will cause the keypad to....
The LM317T is an extremely common positive voltage regulator - many laboratory supplies and other equipment are based on it. It can produce any amount between 1. 25V and up to 35V by adjusting the resistance (opposition to current) between its adjustment pin....
Meteoplug is a client-server. The client application needs minimal storage and computing power, which allows for embedding into "computers" of minimal size and with minimal power demands down to1 watt(depending on efficiency of power supply itcan be 1-2....
Hey another cool thing I found is that if you earth both the earth of the circuit to ground and the other end of the antenna to a separate ground, you increase the power dramaticaly, compared to using a normal antenna and coil. I made a similar coil to the....
A solar powered Flasher to scare away the nocturnal animals like bats and cats from the farm yard or premises of the house. The brilliant multicolored flashes confuse these animals and they avoid the hostile situation. It is fully automatic, turns on in the....
if you are not getting anything at 66 RED then that is a problem. You could have your dash light dimmer turned to the "OFF" position. Or the corrosion on the wiper for the rheostat could be so bad it can`t make contact...
This is a design circuit for stereo encoder. This circuit is using BH1417 Stereo Encoder. This circuit using with pre-emphasis, limiter so that the music can be transmitted at the same audio level, low pass filter that blocks any audio signals above 15 KHz....
A very good 1 watt fm transmitter circuit, very easy to build circuit. It has 4 transistors, one is a very stable oscillator, followed by a buffer stage to prevent frequency variation when you adjust the transmitter. Next is a resonance stage and the final....
The sawtooth signal generated by this simple circuit is synchronized with the power line frequency. It is originally designed to control triac circuits but it can be used for other special applications. The supply voltage is highly flexible and can be any....
Vacuum tubes represent an electronic technology whose roots extend a century and more into the past. With the exception of their continued use in certain niche applications, they have all but vanished from contemporary electronics, having been replaced by an....
Perhaps the trickiest part in building a solid state tesla coil is the bridge or switching circuit. The bridge switching circuit is the heart of t....
This house FM transmitter for your stereo or any other amplifier provides a good signal strength up to a distance of 500 meters with a power output of about 200 mW. It works off a 9V battery. The audio-frequency modulation stage is built around transistor....
This manual is for use by authorised Sinclair dealers. engineers and representatives as a guide to rectifying faults on the Sinclair ZX Printer. Repair/renewal procedures are limited to those which are specific to this printer; standard procedures for the....
This Wien bridge oscillator uses incandescent lamp to stabilize its amplitude. This amplitude stabilization gives a low distortion output. Multiple frequency....
All ground point in the circuit should be connected in a single point and ground it(If possible) or connect in transformer`s 0 marked wire as shown in the circuit...
Last year I built and reviewed the low cost Oatley Electronics K272 Tube Stereo Headphone Amplifier Kit. In conversation with Oatley Electronics (located in New South Wales Australia), they told me that the kit became very popular and sold pretty much all....
Infrared Remote Control for operates on 115 volts AC. This circuit will allow you to turn on any piece of equipment that operates on 115 volts ac. The receiver circuit is based on the Radio Shack infrared...
We are surrounded by battery operated equipment of all kinds, and this array is growing still. Manufacturers and designers lean over backwards to make sure that their equipment draws a small current and can thus be operated by a battery. This has its flip....
The circuit that I`ve described is a one-JFET design without much gain. You can significantly boost the gain by adding a source resistor bypass capacitor. The result would be something like one stage of the original tube preamp in a guitar amplifier. Next,....
It needs 2 volts as its threshold however, that only allows a small amount of curent to flow through the transistor. How do I know how much voltage I need to make it fully on. Also, how do I determine what type of resistor to use from the 5V GPIO pin to the....
The LM4610 is a DC controlled Tone (bass/treble), volume and balance circuit for stereo applications in car Radio TV and Audio systems. It also features Nationals 3D-Sound Cir- cuitry which CAN be externally adjusted via a simple RC Net- work. An additional....
A Power Transistor which is having a drop of 4 Volts across it and passing 3 amps thru it, may dissipate around 12 Watts of Heat, This is the problem in Series Regulators. While a Saturated Transistor or Mosfet with 1 Volts across and 3 Amps Thru will be....
This circuit came from a need for a "quick and dirty" network tester that could be operated by one person. All the commercial units I tried required a person at the other end to check the remote LEDs, as the transmitters could not be made to cycle through....
Toyota Mrs Exterior Lights Wiring Diagram Manual PDF Download...
Voltage Doubler circuit and Voltage Inverter circuit diagram with schematics using MAX660 IC -which is a DC voltage multiplier IC. This is a dc voltage doubler circuit and inverter....
Many passive field strength meters have appeared in the past, typically using a 50mA analog meter movement if reasonable sensitivity was to be obtained. T....
This is Circuit DC to DC Converter. For input DC12V-24V 4A to Output 24V-48V 2A (inputX2) Use easy circuit simple part IC Digital Cmos : 40106 and Mosfet....
As long as we have a stable voltage reference, a stable voltage source can be produced by amplifying the reference. LM10 provide both the reference and the....
This audio-video circuit provides you with wireless audio and visual transmission to a TV. The TV acts as a receiver, eliminating the need to buy a separate monitor. You can also hook it up to a VCR or CCD Camera, and even set up a remote CCTV security....
Connect a 12 volt 20 watt lamp and 12 volt battery to the circuit (observe battery polarity). Momentarily press and release the button to turn the lamp on. Repeatedly press the button to cycle through the power levels. Pressing and holding the button will....
Welcome to the weblog where we discuss about electronic circuits schematics, PCB design, diy kits and electronic projects diagrams. The following is a small audio amplifier comparable to what you may come across a small transistor radio medium size. The....
In this project, all we do is hook up the positive side of the battery to the positive lead of the buzzer and the negative side of the battery to the negative lead of the buzzer. The positive lead of the buzzer many of the times is a red color and the....
An introductory post on how to use serial communication in PIC Micrcontrollers to send data to PC. What comes first in your mind when you listen serial communication ? Yes, how to send data in series. All this time you have been working single bits, turning....
Stepper motors are available in several versions and sizes with a variety of operating voltages. The advantage of this general-purpose controller is that is can be used with a wide range of operating voltages, from approximately 5 V to 18 V. It can drive the....
Everything works just great. The final software is 930 lines of assembler. I also learnt how to use ProTel so I could draw up the final circuit properly. Here`s the result. Notice that I`ve got it down to just one chip now, the little PIC is doing....
Typical current = 0. 7Amps with no user I/O connected. More current may be required dependent on the amount of Digital I/O and Analog +/- 15V consumed by the user. Up to 2 watts of +/-15 volts is generated on board from this 5V supply (most of which is....
