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The 555 timer IC is an integrated circuit used in a variety of timer, delay, pulse generation, and oscillator applications. It is one of the most popular timing ICs due to its flexibility and price. Derivatives provide two or four timing circuits in one package. [2]
Hans R. Camenzind (Swiss Standard German: [ˈkaːməntsɪnd]; 1 January 1934 – 8 August 2012 [1]) was an electronics engineer known for designing the 555 timer IC in 1971 under contract to Signetics. [2] He was the inventor on 20 US patents.
A similar relaxation oscillator can be built with a 555 timer IC (acting in astable mode) that takes the place of the neon bulb above. That is, when a chosen capacitor is charged to a design value, (e.g., 2/3 of the power supply voltage) comparators within the 555 timer flip a transistor switch that gradually discharges that capacitor through a ...
The following is a list of 7400-series digital logic integrated circuits.In the mid-1960s, the original 7400-series integrated circuits were introduced by Texas Instruments with the prefix "SN" to create the name SN74xx.
The Signetics NE565 was a pioneering implementation of powerful phase-locked loop technology in an IC, which along with the voltage-controlled oscillator (VCO) NE566, helped advance digital communications. The Signetics 2650 was an 8-bit microprocessor introduced in the early 1970s and used in several video games and game systems (e.g. the ...
Output and capacitor waveforms for comparator-based relaxation oscillator A Schmitt Trigger-based implementation of a relaxation oscillator. A Schmitt trigger is a bistable multivibrator, and it can be used to implement another type of multivibrator, the relaxation oscillator. This is achieved by connecting a single RC integrating circuit ...
In 2020, Dubreq released a replacement for the 2007 S1. The new model is visually similar to its predecessor but has less rounded corners and no auxiliary input. Internally, the digital sampled sounds have been replaced by an analogue oscillator based on a 555 timer IC, and the tone selector offers three octave ranges. The sound is much more ...
Pearson-Anson oscillator circuit. The Pearson–Anson effect, discovered in 1922 by Stephen Oswald Pearson [1] and Horatio Saint George Anson, [2] [3] is the phenomenon of an oscillating electric voltage produced by a neon bulb connected across a capacitor, when a direct current is applied through a resistor. [4]