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Constant frequency One Cycle Control (OCC), as proposed by Smedley, is a powerful method for controlling switching power converters. The dimensioning of this control method for two level AC output converters is not of common knowledge. This paper describes OCC for two level switched power converters. Its instability problems and solutions are analysed and dimensioning equations are deducted. This...
This paper presents a power drive circuit for electric vehicles with a buck-boost power converter. The buck-boost converter with a dedicated current control allows achieving an electronic gear for DC motors. With this topology is possible to allow a torque-speed profile that resembles the obtained by a geared manual one but in a continuous manner, meaning that the power value is limited at high speeds...
In this paper a novel switched audio amplifier filter topology is proposed and its design criteria are presented. It permits improved attenuation of the switching frequency components and load impedance variation with very low gain variation in the audio band. The new filter configuration allows the use of simple converter topologies while obtaining the same output voltage ripple levels as in multilevel...
In recent years, the introduction of audio switching amplifiers in the audio chain has improved the efficiency, size, and weight of several apparatus. The integration between power supply and amplifier systems appears as the next logical step to achieve further reducing in size, cost and energy consumption. The present paper presents one single stage switching power amplifier and power supply for...
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