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The following are articles related to Study Notes

2026-03-02
[Open Source] PD65W GaN Charger (ACF), Based on DK8607AD, IP6538-AC-65W, XPM52CDP65 Open source a 65W PD fast charging GaN charger, based on DK8607AD power chip, Active Clamp Flyback (ACF) topology, IP6538-AC-65W + XPM52CDP65. Downloa
- 2026-03-02
- 2
- 0
- 1
- Electronics / Circuits
2026-02-23
[Open Source] SC8703-Based Adjustable Buck-Boost DC/DC Power Supply | Voltage & Current Adjustable, PD Fast Charge Input Supported Open sourcing a Buck-Boost DC/DC power module based on the SC8703 chip. Input voltage up to 36V, input/output current up to 10A, switching frequency 6
- 2026-02-23
- 6
- 0
- 2
- Electronics / Circuits
2025-10-13
Open Source 24V3A Flyback Power Supply Based on UC3842, with Transformer Parameter Calculation Open-sourcing a wide input voltage, 24V 3A output flyback switching power supply. This 72-watt design achieves a peak efficiency of 87.4% and is based
- 2025-10-13
- 73
- 0
- 2
- Electronics / Circuits
2025-10-13
Flyback Power Supply Design: Parameter Calculation, Component Selection & Transformer Winding Guide This article uses a 72-watt flyback power supply with a wide-range voltage input (24V, 3A output) as an example to demonstrate the calculation of circ
- 2025-10-13
- 60
- 0
- 2
- Electronics / Circuits
2025-09-27
WCH CH224K Fast-Charging Protocol Chip: Function Changed but Model Number Remains Unchanged? Has WCH Changed the Functionality of the CH224K Fast-Charging Protocol Chip Without Changing Its Model Number? In the 1F version of the datasheet, the
- 2025-09-27
- 20
- 0
- 1
- Electronics / Circuits
2025-09-10
Magnetic Components/Magnetic Core Materials & Structures: Analysis, Comparison & Selection Guide Magnetic Components / Magnetic Core Materials / Core Structures Comparison and Selection Guide In magnetic component design, the magnetic core is the
- 2025-09-10
- 40
- 0
- 1
- Electronics / Circuits
2025-07-03
Disassembly and Circuit Design Analysis of ZGRL-80 Photography Light ZGRL-80 Photography Light / Portable Handheld COB Fill Light – Detailed Teardown and Circuit Analysis Disassembly video: https://www.bilibili.com/vide
- 2025-07-03
- 80
- 0
- 1
- Electronics / Circuits
- Reviews & Teardown
2025-04-29
Open-Source USB 10 Gbps Hub with 2.5 Gbps Ethernet & TF/SD Card Reader (VL822+RTL8156BG+GL3224) Open-sourcing a USB3.2 expansion dock with Type-C input: 4 USB3.2 Gen2 ports + 2.5G Ethernet + TF/SD card readers, supports PD fast charging for auxil
- 2025-04-29
- 80
- 0
- 1
- Electronics / Circuits
2025-02-16
EG1164 High-Power Synchronous Rectification Boost Module Open Source with 97% Peak Efficiency EG1164 High-Power Synchronous Rectification Boost Converter Module – Up to 97% Efficiency, Input Voltage 8~50V, Adjustable Output Voltage 8~60V, Maxim
- 2025-02-16
- 44
- 0
- 2
- Electronics / Circuits
2025-02-15
Measured Comparison of Capacitors and Inductors Across Different Brands and Types (D, Q, ESR, X) Recently, I purchased an LCR bridge and decided to measure and compare the parameters of various capacitors and inductors I have on hand. The testing
- 2025-02-15
- 28
- 0
- 1
- Electronics / Circuits
2025-02-15
Open-Source Three-Phase Energy Meter: Simplifying Home Electricity Monitoring Built a Three-Phase Power Meter for Home Energy Monitoring This device can measure three-phase current, voltage, power, power factor, and energy consu
- 2025-02-15
- 34
- 0
- 2
- Electronics / Circuits
- Internet of Things / Embedded
2025-02-06
Open-Source Smart Electronic Load Based on CH32V307, Embedded Competition Project Open Source Open-source smart electronic load based on CH32V307VCT6, embedded competition project open source, including schematic diagrams, PCB, program source c
- 2025-02-06
- 43
- 0
- 1
- Electronics / Circuits
- Internet of Things / Embedded
2025-01-16
EG1151 High-Power Synchronous Buck-Boost Power Module (Supports Type-C PD Fast Charging) Open Source We are open-sourcing a fully domestic high-power adjustable buck-boost DC-DC power module based on the EG1151 chip. It supports Type-C input, includes
- 2025-01-16
- 89
- 0
- 1
- Electronics / Circuits
2024-12-28
Java Implementation of 99 Multiplication Table — Using For Loop and Recursion Java Implementation of 99 Multiplication Table For Loop public class ninenine { public static void main(String[] args){ for (int i=1;i<10;
- 2024-12-28
- 35
- 0
- 1
- Java
2024-12-28
Python Formatted Output (% and format Usage) Integer Output %o—Octal (Base 8) %d—Decimal (Base 10) %x—Hexadecimal (Base 16) Floating-Point (Decimal) Output Formatted Output >>> awsl = 2.333 >>> p
- 2024-12-28
- 30
- 0
- 1
- Python

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