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Transactions: WSEAS TRANSACTIONS ON ELECTRONICS
Transactions ID Number: 31-762
Full Name: Luiza Grigorescu
Position: Associate Professor
Age: ON
Sex: Female
Address: Str. Pietatii 16, bl. B2, ap. 29, Braila
Country: ROMANIA
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E-mail address: lgrigorescu@ugal.ro
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Title of the Paper: New results in analysing and designing of current mode RC oscillators
Authors as they appear in the Paper: Luiza Grigorescu, Ioana Diaconescu, Gheorghe Oproescu
Email addresses of all the authors: lgrigorescu@ugal.ro, idiaconescu@ugal.ro, goproescu@ugal.ro
Number of paper pages: 11
Abstract: This paper proposes a systematic approach way to II order RC oscillators generation, with current mode operation (CMO-RC). The generation is made with active blocks of current amplifier with one input and two opposite outputs (SIDO) type and with standard current amplifiers (one input and one output). The solution with current amplifier with one input and two opposite outputs (SIDO) is the original element of proposed generation way. This type of current amplifiers could be obtained very easy and the bipolar complementary process appearance makes possible also practical construction of this type of performing amplifiers. The generation is making beginning with a classification of feedback amplifiers, consisting in a frequency linear selective network and an ideal current amplifier. The classification uses the transfer function of the open loop obtained by interrupting it at the input or the output of the amplifier. For a given oscillator the transfer function is !
unique if the amplifier and selective network are correctly identified. The paper point out the experimental results obtain through RC oscillators implementation with PA 630 current conveyors showing that the current mode oscillators appears to be an interesting approach from the perspective of the simplicity/performance compromise.
Keywords: Frequency, Design, Errors, Gain, Oscillator
EXTENSION of the file: .pdf
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