Power conversion (electronic)

Predict loop gain in buck converters

By admin4 on July 2, 2008

Stability is a critical issue in designing DC/DC converters. The stability of a buck converter (Figure 1) is determined by the feedback loop compensator GCOM and the output power filter GLC. Nowadays, most PMIC manufacturers provide internal or external compensators, which are optimized for specific values of inductors and capacitors in the output power filters. [...]

Posted in Power conversion (electronic) | Tagged amplifier, buck converter, capacitors, compensator, high-performance converter, inductors, power filter, resistor Leave a response

Save energy with next-generation IGBTs

By admin4 on July 1, 2008

Worldwide demand for electrical energy has been growing year by year. Rising energy costs, the need to reduce the greenhouse effect caused by CO2 emissions, and the expectation of limited availability of fossil energy resources in the future all require responsible use of these resources for energy savings. Potentially, large energy saving can be [...]

Posted in Power conversion (electronic) | Tagged electrical energy, energy consumption, energy resources, energy-savings, fossil energy, large energy, power cycling, power modules, power semiconductors, power supply Leave a response

Understanding non-linear slope compensation: a graphical analysis

By admin4 on July 1, 2008

Evaluating peak CMC waveforms Let’s assume a typical application where Vout and L are fixed, and determine how the value of Vin affects slope compensation. Analysing the problem with time plots of steady-state inductor and control signals provides us with a good vehicle for visualizing the operation of slope compensation in specific applications.
In Figure 11, the [...]

Posted in Power conversion (electronic) | Tagged circuits, current waveforms, downward slope, inductor, Linear compensation, linear slope compensation, slope compensation, waveforms Leave a response