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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 purpose of this paper is to discuss a current prediction algorithm for sensorless model control dc-dc converter. In the proposed method, the sensing resistor for the current detection is eliminated by predicting the output current. The output current is predicted from the equation of the relationship between the output and input voltage in the static state using the duty ratio and the output voltage...
This paper presents a novel sensorless model control dc-dc converter. In the proposed method, the output current is predicted from the duty ratio and the output voltage in order to exclude the sensing resistor. Only the output voltage and the input voltage are detected. The transient characteristics in the proposed method without the current detection are compared to the existing proposed method and...
This paper presents a new high performance dc-dc converter with sensorless model reference modification. In the proposed method, output current is predicted from the duty ratio and the output voltage in order to eliminate the sensing resistor for output current detection. Only the output voltage and input voltage are detected for feedback and feed-forward. The bias value of the P-I-D control is changed...
The purpose of this paper is to present a model control method without a current detection. In the proposed method, output current is predicted from the duty ratio and the output voltage in order to exclude the sensing resistor. Only the output voltage and input voltage are detected. The bias value of the P-I-D control is changed using the predicted output current. This value is controlled based on...
This paper presents the digital control method for the wide transient range dc-dc converter. We have already reported that an exponential function model is effective in improvement of transient characteristic. There is a problem that calculation time is long by using the exponential function and the square root. In this paper, those functions are approximated in order to achieve the calculation time...
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