Square-wave and PWM signal generators based on CC-CDTRA

Siripruchyanun, Montree; Poonnoy, Nitchamon; Upathamkuekool, Charat; Payakkakul, Kangwal

doi:10.1109/tsp.2016.7760882

Cited by 1 publication

(3 citation statements)

References 13 publications

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“…Considering Equation 3, the condition of oscillation could be presented with the Equation 5. 5Substituting the g m1 and g m2 as described in Equation 2into Equations (4) and 5, the frequency and condition of oscillation ware presented as below [Equations (6) and 7]: (6) and (7) It was found that the frequency of oscillation could be electronically tuned by adjusting the bias current I B2 without affecting the condition of oscillation while the resistor R was used to control the condition of oscillation without affecting the frequency of oscillation. Moreover, the linear tune of the frequency of oscillation was achieved by simultaneously adjusting bias current I B1 and I B2 (I B1 = I B2 ).…”

Section: (4)mentioning

confidence: 99%

“…With theses I B2 values, the THDs were 1.727, 0.959 and 0.6638%, respectively. It was found from the results in Figures 7-10 that the frequency of oscillation could be controlled by the I B2 as analyzed in Equation(6). The output resistance (at low frequency) of node Io 1 and I o2 are 718.175 kΩ and 780.763 kΩ, respectively.…”

mentioning

confidence: 91%

“…The current-mode active building blocks have been widely used to design the high performance analog signal processing circuit [3]- [6]. This is because the current-mode circuits provide many advantages when they are compared to the voltage-mode ones such as low voltage operation, good performance frequently, large dynamic range, simple circuitry, etc.…”

Section: Introductionmentioning

confidence: 99%

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Single CDCTA Based Electronically Adjustable Current-mode Quadrature Sinusoidal Oscillator

Siriphot¹,

Pookrongtong²,

Lumchanao³

2018

j.ijast

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The realization of the current-mode quadrature sinusoidal oscillator was presented in this paper. In this design, a single active building block, named Current Differencing Cascaded Transconductance Amplifier (CDCTA) was used with grounded resistor and two grounded capacitors. The proposed circuit was a simple structure which was attractive for integrated circuit implementation. The proposed oscillator could generate two sinusoidal signals with 90°degree phase difference. The output current nodes were high impedance which was ideal for cascading in the current-mode circuit without the requirement of the current buffers. Moreover, the control of the Frequency of Oscillation (FO) and the Condition of Oscillation (CO) were orthogonally and electronically via the DC bias current of CDCTA. The workability of the proposed sinusoidal oscillator was verified with PSpice in which simulation results agree well with theoretical expectations.

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Section: (4)mentioning

confidence: 99%

mentioning

confidence: 91%

Section: Introductionmentioning

confidence: 99%

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