https://www.youngju.dev/blog 천천히 올바르게. AI Researcher & DevOps Engineer Youngju's tech blog. GPU/CUDA, LLM, MLOps, Kubernetes AI workloads, distributed training, and data engineering. ko fjvbn2003@gmail.com (Youngju Kim) fjvbn2003@gmail.com (Youngju Kim) Wed, 17 Jun 2026 00:00:00 GMT https://www.youngju.dev/blog/architecture/2026-06-17-fingerscore-power-battery-circuit-design.en https://www.youngju.dev/blog/architecture/2026-06-17-fingerscore-power-battery-circuit-design.en We cover, from scratch, the power design that actually keeps the FingerScore ring on. A power budget calculation, coin cell vs. LiPo, charging ICs and protection circuits, LDOs and buck converters, decoupling, low-power techniques, and heat, ESD, and safety — all in a beginner-friendly way. Wed, 17 Jun 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) fingerscorepowerbatterylipocircuitembeddedhardware https://www.youngju.dev/blog/architecture/2026-06-17-fingerscore-power-battery-circuit-design.ja https://www.youngju.dev/blog/architecture/2026-06-17-fingerscore-power-battery-circuit-design.ja FingerScore リングを本当に点け続けるための電源設計をゼロから扱います。電力予算の計算、コインセル対 LiPo、充電 IC と保護回路、LDO とバックコンバータ、デカップリング、低電力技法、そして発熱・ESD・安全まで初心者にやさしく整理します。 Wed, 17 Jun 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) fingerscorepowerbatterylipocircuitembeddedhardware https://www.youngju.dev/blog/architecture/2026-06-17-fingerscore-power-battery-circuit-design https://www.youngju.dev/blog/architecture/2026-06-17-fingerscore-power-battery-circuit-design FingerScore 링을 진짜로 켜 두기 위한 전원 설계를 처음부터 다룹니다. 전력 예산 계산, 코인셀 대 LiPo 선택, 충전 IC와 보호회로, LDO와 벅 컨버터, 디커플링, 저전력 기법, 그리고 발열·ESD·안전까지 입문자 친화적으로 정리합니다. Wed, 17 Jun 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) fingerscorepowerbatterylipocircuitembeddedhardware