Variable output, soft-switching DC/DC converter for VLSI dynamic voltage scaling power supply applications
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
The implementation of a low-voltage zero-voltage-switching quasi-square-wave (ZVS-QSW) buck converter capable of meeting the future challenges of low-voltage VRMs is presented. By eliminating switching losses, high-efficiency operation at switching frequencies beyond 1 MHz is achieved. The design uses novel high-speed dead-time-locked-loops with fast dead-time error rejection to ensure zero-voltage-switching under dynamic loads and variable output conditions. The ZVS-QSW converter, which was implemented in a mixed-signal 0.18 m CMOS process, has a measured efficiency of 82% at 5 MHz with a 1.4 V output. The ZVS-QSW converter is intended to supply the next generation VLSI chips with a variable supply voltage for dynamic voltage scaling (DVS) applications. DVS refers to the real-time scaling of the supply voltage to the VLSI chip to minimize dynamic power consumption, while satisfying a variable target clock frequency. Several DVS strategies are examined, and it is shown that DVS can be applied to the ZVS-QSW converter using a dual-mode configuration. An experimental DVS test-bench was developed using a state-of-the-art Xilinx CPLD capable of operating from 1.35 V to 1.8 V. The PID controlled DVS system achieves the maximum V/sub DD/ transition in 22 /spl mu/s.
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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 | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.000 | 0.001 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it