Common-mode EMI evaluation of forward converter with various core-reset schemes

Controlling EMI with A Chaotic Peak Current-mode Boost Converter

In this paper, a novel boost converter is designed where its current mode control is dependent on two reference currents and an external clock. A detailed study on its dynamics is carried out based on its corresponding current mapping function. As demonstrated in both simulations and experiments, by operating the proposed boost converter in its chaotic mode, the electromagnetic interference can...

A Self Core Reset and Zero Voltage Switching Forward Converter Topology

A self core reset and zero voltage switching (ZVS) forward converter topology is presented in this paper. By employing a simple auxiliary circuit, the proposed topology is able to achieve self reset of the power transformer without the use of the conventional tertiary reset winding, and its main switch can be turned on and turned off under ZVS independent of line and load conditions. This simpl...

Behavioural Models for Common Mode EMI Filters

Auto-Reset Forward DC-DC Converter with Fast Transient Response for High-Current/Low-Voltage Applications

This paper proposes a novel auto-reset forward DC-DC converter with inductor-switching technique to obtain the high performance by means of zero voltage switching and the fast transient response at steep load variations. The performance of the forward converter is strongly depending on the transformer reset-method. The Auto-reset method is used to recover the energy stored in leakage inductance...

evaluation of fat atrophy in patients with dermis fat graft of orbit by ct-scan

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