Transformer Shielding Technique for Common Mode Noise Reduction in Switch Mode Power Supplies

Analysis and Performance Evaluation of Noise-Reduction Transformer

The present paper deals with the analysis and development of noise-reduction transformer that has a filter function for conductive noise transmission. Two types of prototype noise-reduction transformers with two different output voltages are proposed. To determine an optimum design for the noise-reduction transformer, noise attenuation characteristics are discussed based on the experiments and ...

Low Dropout Based Noise Minimization of Active Mode Power Gated Circuit

Power gating technique reduces leakage power in the circuit. However, power gating leads to large voltage fluctuation on the power rail during power gating mode to active mode due to the package inductance in the Printed Circuit Board. This voltage fluctuation may cause unwanted transitions in neighboring circuits. In this work, a power gating architecture is developed for minimizing power in a...

Artificial Intelligence Based Approach for Identification of Current Transformer Saturation from Faults in Power Transformers

Protection systems have vital role in network reliability in short circuit mode and proper operating for relays. Current transformer often in transient and saturation under short circuit mode causes mal-operation of relays which will have undesirable effects. Therefore, proper and quick identification of Current transformer saturation is so important. In this paper, an Artificial Neural Network...

Prototyping Analog Circuits Evaluation Boards Noise Reduction and Filtering for Switching Power Supplies Low Dropout References and Regulators EMI/RFI Considerations Sensors and Cable Shielding

Novel Techniques to Cancel Common-mode Noise Based on Noise Balance

Role of winding shielding on the parasitic capacitances of transformer and common-mode (CM) noise is analyzed in details when considering the effects of the secondary side noise source. Based on the proposed model of CM noise, two novel techniques to cancel CM noise by balancing noise is given; experiment results show CM noise is greatly reduced when the techniques are adopted.