555 Timer Circuits
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This is one way of generating an intense magnetic pulse. A charged capacitor is discharged through a loop shaped inductor and an intense magnetic field is generated. This circuit burns a 555 chip which is placed slightly above the loop shaped inductor (L2). .. -
This circuit is simple. The first 555 timer prevents the second timer from being triggered while the first is running... -
My door alarm is a small device which sounds an alarm whenever the door is opened. It is ideally used when you want privacy, if you want to know if other people enter your room while you’re in another part of the house, to wake you up if someone enters your.... -
When the power supply input to IC1 is the output pin 3 at a frequency of 1 kHz. The frequency is Q1 and Q2, which will continue to use push pool work interchangeably. If this is the positive output signal Q1 Q2 will run the delete function this reason, C2.... -
Operation of the circuit. Circuit is divided into three parts: low frequency production. The manufacturing high frequency and extension of production low frequency is obtained from IC1 connected to astable multi vibrator circuit frequency is set by R1, C2.... -
This electronic circuit is a simple version of an electronic roulette game and is based on the 4017 IC which is a 10 stage decade counter/divider. It is driven by another versatile IC 555 configured as a voltage controlled oscillator (VCO). The 555 timer is.... -
A very simple electronic key code lock circuit that require few external components can be constructed using this schematic diagram. This electronic key code lock circuit is based on a common 555 timer circuit and some other common components. This low cost.... -
A collection of drawings of different 555 applications. Some are drawings of schematics found on the web and in books, and saved for my own reference. I did not save the web pages that these originated from, so some may not have proper attribution. If you.... -
Welcome to the weblog where we discuss about electronic circuits schematics, PCB design, diy kits and electronic projects diagrams. A simple DC motor controller circuit with NE555 is shown here. several DC motor speed contro l circuits are revealed here.... -
Welcome to the weblog where we discuss about electronic circuits schematics, PCB design, diy kits and electronic projects diagrams. Here is a simple circuit with NE555 IC that can be used to generate metronomes. Such circuit is very useful for those who.... -
Welcome to the weblog where we discuss about electronic circuits schematics, PCB design, diy kits and electronic projects diagrams. Rain detector using In principle it is an astable multivibrator 555, which is prepared by IC555 with a sensor attached that.... -
This circuit diagram shows how a 555 timer IC is configured to perform as an astable multivibrator. An astable multivibrator is a timing circuit whose `low` and `high` states are each unstable. As such, the output of an astable multivibrator toggles between.... -
This entry is a 4 step sequencer controlling an `Atari Punk` synth with a greyscale NTSC video visualization of the output audio, built using two 558 quad-timers and two 556 dual-timers. Sorry in advance for the poor video quality, I will try to get a direct.... -
This is a motor speed control circuit that allows safe and easy control of 115VAC "universal motors" like drill motors, blender motors, other power tools, etc. The motor is controlled directly by a triac-diac component that is found in variable-speed.... -
I`ve decided to start selling these on ebay to raise some money for parts. Here`s a link to the current auction and here`s a photo of the current model: Switchgate is a simple dual gate based on a 556 in monostable mode (with trigger input), with the.... -
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A monostable multivibrator (MMV) often called a one-shot multivibrator, is a pulse generator circuit in which the duration of the pulse is determined by the R-C network, connected externally to the 555 timer. In such a vibrator, one state of output is stable.... -
A schematic diagram of a touch switch circuit is shown below. This circuit consist of timer, one shoot multivibrator and touch terminal. As timer, this circuit uses 555 timer which is connected to one-shot multivibrator. The touch terminal is used to trigger.... -
12V power inverter circuit using 555 timer circuit electronic project... -
The 555 circuit below is a flashing bicycle light powered with four C,D or AA cells (6 volts). Two sets of 20 LEDs will alternately flash at approximately 4.7 cycles per second using RC values shown (4.7K for R1, 150K for R2 and a 1uF capacitor). Time.... -
This is a simple circuit of beeper using 555 timer. This circuit can be employed to energize lights, horn, or other signaling device at any desired interval... -
The Vc1 increases linearly when the pull-up resistor RA in the monostable circuit is replaced with constant current source, generating a linear ramp. The linear ramp generating circuit and the generated linear ramp waveforms illustration is shown in figures.... -
A square wave oscillator using 555 IC can be configured to give symmetric oscillation (50% duty cycle). Other circuit uses diodes to split the charging and the... -
To provide rapid motor speed changes and motor direction reversal, four outputs drive a MOSFET H-bridge. N-channel devices are the lower rail power MOSFETs and P-channels are the upper MOSFETs. All of them are driven by the TC4469. A small series resistor.... -
Normally 555 timer circuit even though the start push-button PB1 is not pressed, the timer keeps consuming power From the battery due to a potential divider formed by three 5k © resistors within the IC. this power consumption known as the idling power.... -
The 555 Stepper Pulse Generator kit will help you with the pulse required to drive your favorite DC Servo Motor application.. -
This voltage to frequency converter (VFC) circuit uses 555 IC and 741 op-amp as the main components. Up to 20kHz oscillation can be produced by this circuit.. -
First introduced by the Signetics Corporation as the SE555/NE555 about 1971. Pin connections and functions: (See schematic below for basic circuits) Pin 1 (Ground) - The ground (or common) pin is the most-negative supply potential of the device, which is.... -
As friends many take an interest the circuit about IC 555 which be integrated highly popular that circuit. I then lead the circuit sets the time be Basic... -
The frequency formula of 555 oscillator is popularly known. For a known resistors and capacitor, the frequency can be determined by a formula. From the math...
New Circuits
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This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of.... -
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is.... -
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to.... -
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This.... -
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the.... -
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound,.... -
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the.... -
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power.... -
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower.....
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