Output stages inside a negative feedback loop: application to a low- voltage three-phase DC-AC converter for educational purposes
نویسندگان
چکیده
The circuit presented in this paper aims at providing three 40 Vpp 50Hz AC voltages sources with 120o phase separation between them. This is a fully analogue circuit that uses standard, low-cost electronic components without resorting to a microcontroller as previously proposed by Shirvasar et al [1]. This circuit may serve as a basis for a low-voltage 3P-AC power supply that students may safely use to realize experiments, i.e. about the principles and applications of three-phase AC power lines, without the risk of electric shocks. Key-Words: Output stages, DCto -3-phase AC converters; Negative feedback; Phase-shift oscillators
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