Controlled current source circuit (CCSC) for Reduction of output voltage overshoot in Buck converters
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Bibliographic record
Abstract
In this paper, an auxiliary circuit is presented to improve the dynamic response of a buck converter. Since it is well established that for typical voltage regulator applications, voltage overshoots (due to step-down load transients) are much larger than voltage undershoots (due to step-up load transients), the goal of the proposed method is to reduce the former. The circuit only functions during step-down load transients and operates by rapidly transferring excess load current from the output of the buck converter to its input. Unlike previous unloading auxiliary circuits, the proposed method uses a controlled current source circuit (CCSC) to remove a constant regulated current from the output. The CCSC has the following advantages over previous circuits: a) predictable behavior allowing for simplified design, b) inherent over-current protection, c) low peak current to average current ratio allowing for use of smaller components. Through selection of the auxiliary current, it is possible to obtain a balanced overshoot/undershoot response for a buck converter, significantly reducing the required output capacitance. In this paper, it is shown through analysis, simulation and experimental results that for a modest increase in component cost, a large reduction of voltage overshoot and output capacitor requirement can be realized.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
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