100 years of Colpitts Oscillators: Ontology Review of Common Oscillator Circuit Topologies

2020 ◽  
Vol 20 (4) ◽  
pp. 8-27
Author(s):  
Mehdi Azadmehr ◽  
Igor Paprotny ◽  
Luca Marchetti
Keyword(s):  
Oscillator Circuit

Backside FIB Device Modifications Through the BOX Layer of an SOI Device

2002 ◽  
Author(s):  
Jeffery P. Huynh ◽  
Joseph P. Shannon ◽  
Richard W. Johnson ◽  
Mike Santana ◽  
Thomas Y. Chu ◽  
...  
Keyword(s):  
Contact Resistance ◽  
Oxide Layer ◽  
Cross Section ◽  
Test Structure ◽  
Ring Oscillator ◽  
Oscillator Circuit ◽  
Entire Process ◽  
Oscillator Frequency ◽  
Polysilicon Gate ◽  
Resistance Data

Abstract Modifications directly to a transistor’s source/drain and polysilicon gate through the backside of a SOI device were made. Contact resistance data was obtained by creating contacts through the buried oxide layer of a manufactured test structure. A ring oscillator circuit was modified and the shift in oscillator frequency was measured. Finally, cross section images of the FIB created contacts were presented in the paper to illustrate the entire process.

Approximating an Exactly Solvable Chaotic Oscillator Using a Colpitts Oscillator Circuit

2020 ◽  
pp. 1-1
Author(s):  
Benjamin K. Rhea ◽  
R. Chase Harrison ◽  
Frank T. Werner ◽  
Edmon Perkins ◽  
Robert N. Dean
Keyword(s):  
Chaotic Oscillator ◽  
Colpitts Oscillator ◽  
Oscillator Circuit ◽  
Exactly Solvable

scholarly journals Independent control of amplitude and period in a synthetic oscillator circuit with modified repressilator

2022 ◽  
Vol 5 (1) ◽  
Author(s):  
Fengyu Zhang ◽  
Yanhong Sun ◽  
Yihao Zhang ◽  
Wenting Shen ◽  
Shujing Wang ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Synthetic Biology ◽  
Biological Systems ◽  
Reporter Genes ◽  
Quantitative Model ◽  
Theoretical Level ◽  
Independent Control ◽  
Oscillator Circuit ◽  
Biological Circuits

AbstractSynthetic Biology aims to create predictable biological circuits and fully operational biological systems. Although there are methods to create more stable oscillators, such as repressilators, independently controlling the oscillation of reporter genes in terms of their amplitude and period is only on theoretical level. Here, we introduce a new oscillator circuit that can be independently controlled by two inducers in Escherichia coli. Some control components, including σECF11 and NahR, were added to the circuit. By systematically tuning the concentration of the inducers, salicylate and IPTG, the amplitude and period can be modulated independently. Furthermore, we constructed a quantitative model to forecast the regulation results. Under the guidance of the model, the expected oscillation can be regulated by choosing the proper concentration combinations of inducers. In summary, our work achieved independent control of the oscillator circuit, which allows the oscillator to be modularized and used in more complex circuit designs.

scholarly journals Perancangan Prototipe Transmitter Beacon Black Box Locator Acoustic 37.5 kHz Pingers

2018 ◽  
Vol 4 (2) ◽  
pp. 170
Author(s):  
RUSTAMAJI RUSTAMAJI ◽  
KANIA SAWITRI ◽  
RUDI GUNAWAN
Keyword(s):  
Pulse Width ◽  
Black Box ◽  
Pulse Repetition ◽  
Acoustic Vibrations ◽  
Colpitts Oscillator ◽  
Amplifier Circuit ◽  
Oscillator Circuit ◽  
Signal Output ◽  
Transmitted Signal ◽  
Repetition Interval

ABSTRAKPingers transmitter berfungsi untuk memancarkan sinyal atau getaran pulsa akustik pada black box. Frekuensi sinyal yang dipancarkan sebesar 37,5 kHz yang dimodulasikan oleh pulsa dengan durasi 10 ms setiap interval 1 second. Modulasi yang digunakan adalah modulasi on off keying. Dalam penelitian ini dibuat perancangan pingers transmitter yang tersusun atas rangkaian osilator, timer, inverter, switch dan rangkaian amplifier. Frekuensi 37,5 kHz tersebut dibangkitkan oleh rangkaian osilator colpitts, sedangkan lebar pulsa dengan durasi 10 ms dan pengulangan pulsa setiap interval 1 second dibangkitkan oleh rangkaian timer. Berdasarkan perancangan yang telah dibuat, output sinyal yang dihasilkan oleh prototipe pingers transmitter tersebut sebesar 37,69 kHz dengan lebar pulsa 9,8 ms setiap interval 1 second.Kata kunci: Black box, pingers transmitter, on off keying. ABSTRACTPingers transmitter is used to emits a signal or pulse of acoustic vibrations  in black box. The frequency of the transmitted signal is 37.5 kHz which is modulated by pulses with a duration of 10 ms every interval 1 second. The modulation that used this research is on off keying modulation. In this research, made the design of pingers transmitter which arrange of the oscillator circuit,timer, inverter, switch, and amplifier circuit. The 37.5 kHz frequency is generated by the colpitts oscillator circuit, while the pulse width with a duration of 10 ms,and each pulse repetition interval of 1 second generated by timer circuit. Based on the design that have made, signal output from the pingers transmitter prototype is 37.69 kHz, with the pulse width 9.8 ms every 1 second interval.Keywords: Black box, pingers transmitter, on off keying.

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