collector circuit
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scholarly journals Control of large scale solar thermal plants

2021 ◽  
Author(s):  
Markus Gölles ◽  
Viktor Unterberger
Keyword(s):  
Heat Exchanger ◽  
Large Scale ◽  
Solar Thermal ◽  
Secondary Circuit ◽  
Collector Circuit

Overview on the control of large-scale thermal plants, limited to plants feeding into DH networks as well as their key components, i.e. the actual collector circuit and the heat exchanger between primary and secondary circuit.

TOWARDS THRESHOLD FREQUENCY IN CHAOTIC COLPITTS OSCILLATOR

2007 ◽  
Vol 17 (10) ◽  
pp. 3449-3453 ◽  
Author(s):  
ERIK LINDBERG ◽  
ARŪNAS TAMAŠEVIČIUS ◽  
GYTIS MYKOLAITIS ◽  
SKAIDRA BUMELIENĖ
Keyword(s):  
Fundamental Frequency ◽  
Chaotic Oscillations ◽  
Colpitts Oscillator ◽  
Bipolar Junction Transistor ◽  
Threshold Frequency ◽  
Junction Transistor ◽  
The Common ◽  
Linear Loss ◽  
Collector Circuit

A novel version of chaotic Colpitts oscillator is described. Instead of a linear loss resistor, it includes an extra inductor and a diode in the collector circuit of the transistor. The modified circuit in comparison with the common Colpitts oscillator may generate chaotic oscillations at the fundamental frequency f* noticeably closer to the threshold frequency fT of the employed bipolar junction transistor, up to f* ≈ 0.6fT.

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