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FEATURED ARTICLE
220Vac SMPS Input Smoothing Capacitor Sizing: Calculation and Simulation Example
Calculates the bulk capacitor for a non-PFC 220Vac 60W SMPS based on an allowable ripple of 40Vpp. Evaluates a 100µF initial candidate through tolerance-adjusted capacitance comparisons and rectified waveforms.
ARTICLES
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Hindsight Operating Costs: Why We Chose APIs for Embeddings and Local NPU for Reranking
We retained low-cost APIs for embeddings and chose local Qwen for reranking based on cost and quality. Here is why we maintain this setup,…
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Anima RKNN Inference Optimization: Reducing Generation Time by 41% with Spectrum
On the ROCK 5C 8GB, Spectrum replaced 9 out of 20 steps with state prediction. Total image generation time decreased by 41.02%, and speed…
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Limits of Anima RKNN Optimization: W8A8 Quality Failure and 8GB Resident Model Experiments
FFN W8A8 quantization reduced denoising time by 18.48%, but failed to meet image quality criteria. Model residency also increased swapping at 18 contexts. We…
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RKNN Toolkit 2.3.2 vs 2.3.0: AdaLN Compiler Crash and Operator Fusion Benchmark
Building the AdaLN graph that crashed in RKNN Toolkit 2.3.2 using 2.3.0 enabled fusing a single DiT block. The speedup was limited to 0.47%,…