Hybrid Power Electronic Converter for Wearable Electric Stimulators
Bibliographic record
Abstract
A GaN based hybrid switch-mode power electronic converter and a complementary mixed-signal controller suitable for battery-powered portable electric stimulators are introduced. Lithium-ion coin cell battery voltage is first efficiently stepped-up using a quasi-resonant (QR) boost converter, and then an efficient downstream switched-capacitor (SC) stage generates high voltage stimulation pulses. High efficiency of the QR-boost converter and high slew rate of the SC stage (reducing the pulse energy required for stimulation) extends the battery life. The SC stage stage generates pulses with (<tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$a$</tex>) zero-net charge, thus eliminating the need of bulky dc blocking capacitors and, (b) high slew rate, relaxing the need of high voltage stimulation which makes the stimulation less painful. The regulation of the converter is performed with a mixed-signal controller, which can be easily configurable to generate a variety of electric pulses, with variable voltage amplitude, pulse duration and frequency. The operation of the introduced two-stage ES is verified using a discrete prototype with input voltages of 3 V - 3.6 V and output voltages of 100 V - 200 V. The SC stage generates bi-phasic pulses with slew rates as high as 2 kV/us.
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How this classification was reachedexpand
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) | 0.000 | 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)
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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".