Analysis and interpretation of loop gains of multiloop-controlled switching regulators (power supply circuits)
- 1 October 1988
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Power Electronics
- Vol. 3 (4) , 489-498
- https://doi.org/10.1109/63.17971
Abstract
Two different loop gains of power supplies with current-mode control are considered. Relationships between the different loop gains of the multiloop system and the closed-loop measures of output impedance and audio susceptibility are derived. It is shown that different loop gains can be used to obtain information about relative stability and to enhance a poor design. Different implementations of current-mode control are discussed, and the most common problem encountered in practical circuit applications is shown. This problem is connected with the fact that, for high-power applications, the DC portion of the waveform is much larger than the ramp.Keywords
This publication has 3 references indexed in Scilit:
- Topics in Multiple-Loop Regulators and Current-Mode ProgrammingIEEE Transactions on Power Electronics, 1987
- Measurement of Loop Gain with the Digital ModulatorIEEE Transactions on Power Electronics, 1986
- A general unified approach to modelling switching-converter power stagesInternational Journal of Electronics, 1977