Air-Water Cooling System for Switch-Mode Power Supplies

Application of sliding Mode Control to Switch-Mode Power supplies

Switch-mode power supplies represent a particular class of variable structure systems (VSS). Thus, they can take advantage of non-linear control techniques developed for this class of systems. In this paper the so called sliding mode control is reviewed and its application to switchmode power supplies is discussed. Sliding mode control extends the properties of hysteresis control to multi-varia...

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

Optoelectronic Feedback Control Techniques for Linear and Switch Mode Power Supplies

The power supply designer is continually being pressured to provide units which have higher efficiency, better regulation, less EMI and RFI, and smaller size and weight, all at a lower cost. The solution to this problem is a combination of circuit topology, layout, and supply control. This application note will address output control techniques for linear and switch mode power supplies (SMPS). ...

Use of sigma-delta modulation to control EMI from switch-mode power supplies

Conducted electromagnetic interference (EMI) is a major cause of concern in switch-mode power supplies (SMPSs) which commonly use standard pulsewidth modulation (PWM). In this paper, Sigma–Delta ( ) modulation is proposed as an alternative switching technique to reduce conducted EMI from an SMPS. The result of using modulation is a spread in the spectrum of the conducted emissions so that large...

Use of Sigma-Delta Modulation to Control EM1 from Switch-mode Power Supplies

Conducted Electromagnetic Interference (EMI) is a major cause of concern in switchmode power supplies (SMPS) which commonly use standard pulsewidth modulation (PWM). In this paper, Sigma-Delta (CA) modulation is proposed as an alternative switching technique to reduce conducted EM1 from SMPS. The result of using EA modulation is a spread in the spectrum of the conducted emissions so that large ...