1. A Reference Modification Model Digitally Controlled DC–DC Converter for Improvement of Transient Response.
- Author
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Kurokawa, Fujio, Yamanishi, Akihiro, and Hirotaki, Shota
- Subjects
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DIGITAL control systems , *CASCADE converters , *DC-to-DC converters , *TRANSIENT responses (Electric circuits) , *ELECTRIC potential - Abstract
This paper presents a reference modification model digitally controlled dc–dc converter. The proposed method is able to obtain superior transient response because it modifies a reference of conventional feedback loop against the change of output voltage. The modifying process operates only in the transient state. During the steady state, the feedforward control cancels a steady-state-error. Since the feedforward control uses the load current value, this paper discusses two current-sensing methods. One is the output current-sensing method using the sensing resistor, and the reactor current-sensing method using the R–C filter is discussed in order to reduce a performance loss by the sensing resistor. As a result, the output current-sensing method is effective in case that high-transient-response performance is required. On the other hand, it is better to use the reactor current-sensing method when efficiency is important. [ABSTRACT FROM AUTHOR]
- Published
- 2016
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