Some refinement in the theory of power amplifiers, operating in the B mode
- 1 к.т.н., доцент, кафедра «Электроника» НИЯУ «МИФИ»
- 2 к.т.н., профессор, кафедра «Радиосхемотехника», МИРЭА
Keywords:
power amplifieroutput powersupply power requirementspowerdissipated by the collector junctionefficiencypush-pull transformerless power stages in the B and AB modesinfluence of cut-off angle on the efficiencycomplementary and quazicomplementary circuits
Abstract
It is demonstrated, that known correlations for the output power, for the supply power requirements and for the power, dissipated by the collector junction of transistor in the push-pull power amplifiers in the B mode, are valid, only if proposed, that the voltage-current characteristics is a linear function. There are given the plots and formulas, taking into account the presence of «nonsensitivity zone» in the transfer characteristics and influence of corresponding cut-off angle on the efficiency of the stage.
How to cite
Королев В.А., Теряев Б.Г. Уточнение в теории усилителей мощности класса В // Радиотехника. 2013. № 2. С. 58–60.
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