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This paper describes the analysis and design method for a new biased rectifier amplifier (BRAM). The BRAM, driven by a high frequency square wave, employs a new self-biased circuit configuration. Applying the BRAM to a DC current detector makes it possible to obtain a highly accurate constant current DC-DC converter.
The article demonstrates the existence of a number of modes of transformer-induced low-frequency oscillations (TLO's) which can be observed in the series-resonant power converter with a transformer in the resonant circuit, operating under conditions of cyclic stability. The TLO phenomena are mathematically analyzed and the conditions of existence are determined. Experimental observations confirm the...
A new modelling method for magnetic circuits is presented. The method can be used to model magnetic circuits with any number of windings. The models incorporate adequate information about the correct distribution of leakage energy, the presence of gaps throughout the core, the arrangement of the windings, and the type of core used. Several commonly used arrangements such as toroids with uniformly...
The active and reactive load distribution between n paralleled single-phase UPS inverters is equalized by virtue of n − 1 load sharing control loops. The approach permits the construction of UPS systems of any desired power rating at maximum utilization of the power components. The method of harmonic cancellation decreases the switching frequency of the power devices while maintaining good dynamic...
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