Abstract
Control of DC-DC converters refers to the manipulation of the converter’s parameters to match the DC-DC converter’s behavior with the system supply requirements. These system supply requirements are imposed either through the power-source characteristics or through power-management specifications. Irrespective of the motivation for using a DC-DC converter, the primary concern is to ensure a predictable output voltage and a predictable response on both predictable and unforeseen perturbations.
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Notes
- 1.
In IC design cost is quantified in IC area and/or power consumption.
- 2.
Alternative control techniques, for example switch-resistance modulation, are omitted in this chapter. We focus on the dominant control techniques especially since the derived mathematical methods can be addressed for analyzing the other techniques as well.
- 3.
It is assumed that the switch resistance is independent from the output and input/output voltage and constant during the entire state. Violating these prerequisites results in a non-linear set of equations.
- 4.
In the SSL the output impedance is insensitive to duty-cycle variation, this has been discussed in Chap. 2.
- 5.
The analysis presented in Sect. 5.2 gives enough information to build a control loop based on conventional PWM control used in inductive converter design (Wens and Steyaert 2011b).
- 6.
The pole is located at a frequency of \(\frac{1}{2 \pi R_{div1}C_{lead}}\)
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© 2013 Springer Science+Business Media New York
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Van Breussegem, T., Steyaert, M. (2013). Control of Fully Integrated Capacitive Converters. In: CMOS Integrated Capacitive DC-DC Converters. Analog Circuits and Signal Processing. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-4280-6_5
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DOI: https://doi.org/10.1007/978-1-4614-4280-6_5
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Publisher Name: Springer, New York, NY
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