Zeruns's Blog - English Site
Operational Amplifier (Op-Amp) Beginner's Guide: From Theory to Practice
Electronics / Circuits

Operational Amplifier (Op-Amp) Beginner's Guide: From Theory to Practice

This beginner guide explains operational amplifiers from fundamentals to practical use. It covers op-amp types, open-loop operation as a comparator, and negative feedback for linear amplification. Key circuits—voltage follower, non-inverting, and inverting amplifiers—are analyzed using virtual short and virtual open concepts, with gain formulas and common pitfalls. It provides selection guidance, essential DC/AC/bandwidth parameters, and hands-on breadboard lab experiments using LM358. Readers gain the ability to analyze entry-level op-amp circuits, avoid typical mistakes, and build and test basic amplifier circuits with confidence.

发布于 2026-04-30
Open-Source 140W+65W Buck-Boost PD3.1 Fast-Charging Module (2C+1A Ports), IP6557+IP6538,
Electronics / Circuits

Open-Source 140W+65W Buck-Boost PD3.1 Fast-Charging Module (2C+1A Ports), IP6557+IP6538,

An open-source 205W buck-boost fast-charging module based on IP6557 and IP6538 is presented, offering 140W on one Type-C port with PD3.1 support and 65W on the second Type-C and Type-A ports. Maximum conversion efficiency reaches 96.7%. Full documentation and design files are provided, enabling users to replicate a cost-effective charger.

发布于 2024-11-16

所有标签

#DW01A 1 #TL432 1 #INA181 1 #INA180 1 #HT7166 1 #CH592 1 #CH592F 1 #iSmartWare 1 #SW6206 1 #JOINSUN 1 #WITRN 1 #W96Pro 1 #Motor 2 #IP5353 1 #Injoinic 1 #Fan 2 #Mini Fan 2 #F95D 1 #MQTTX 1 #EMQX 1 #IoT 1 #MQTT 1 #Storage Server 1 #ASM1164 1 #I226-V 1 #i3-1315U 1 #DXP4800Pro 1 #Ugreen NAS 1 #Ugreen 1 #GLM 1 #OpenRouter 1 #API 1 #LLM API 1 #Tsingtao Brewery Museum 1 #Qingdao 1 #Wuhan 1 #Trip 2 #The Peak 1 #KeeTa 1 #Peak Tram 1 #Mong Kok 1 #Sham Shui Po 1 #Star Ferry 1 #Star Ferry Pier 1 #Temple Street 1 #Yau Ma Tei 1 #Tsim Sha Tsui 1 #Kennedy Town 1 #Central 1 #West Kowloon 1 #West Kowloon 1 #Hong Kong 1 #nodejs 1 #My IP 1 #IP Query 1 #IP Geolocation 1 #ip-query-web 1 #IP 1 #AI Assistant 1 #AI Agent 2 #Hermes Agent 1 #Hermes 1 #Analog 1 #Analog Electronics 1 #Op-Amp 1 #CPE 1 #5G CPE 1 #HiSilicon 1 #MT5700M-CN 1 #MT5700M 1 #NRadio 1 #F40 1 #5G RedCap 1 #Portable Wi-Fi 2 #RedCap 1 #5G NR 2 #LTE 2 #NR 2 #4G 2 #ZTE F40 1 #CommentAI 1 #typecho 1 #Active Clamp Flyback 1 #HSBB15N15S 1 #HBR20200P5 1 #DK8607AD 1 #XPM52CDP65 1 #ACF 1 #KiCad 1 #CH224Q 1 #XT30 1 #Lilliput 1 #HDS160 1 #Multimeter 1 #Oscilloscope 1 #OWON 1 #Tyndall Effect 1 #Shenzhen-Zhongshan Bridge 1 #Hiking 1 #Hiking 1 #Yangtai Mountain 1 #Wutong Mountain 1 #AI Translation 1 #OpenAI 2 #Embedding 1 #Discourse AI 1 #Discourse 2 #Peak 1 #Urban Night View 1 #Night View Photos 1 #Bijia Mountain 1 #Mountain 2 #28-inch 1 #Wide Color Gamut 1 #Matte Screen 1 #Nano Matte Panel 1 #IPS 1 #Professional Programming Monitor 1 #KVM 1 #10bit 1 #RD280U-L 1 #MST 1 #3:2 1 #BenQ Monitor 1 #MoonHalo 1 #BenQ RD280U 1 #BenQ 1 #RD280U 1 #4550 1 #QPF4550 1 #Ambarella 1 #H22-A0-RH 1 #SMB2352 1 #AOS 1 #Nanya 1 #NT5CB128M16JR-FL 1 #TC58NVG1S3H 1 #S1 V10R03 1 #OcuSync 1 #4205 1 #QPF4206 1 #NXP 1 #Toshiba 1 #MIMXRT1064 1 #SS1029009 1 #ToF 1 #MP6530 1 #muRata 1 #MPS 1 #OPT3101 1 #AON6407 1 #BLDC 3 #SPINTROL 1 #SPC1168APE48 1 #AON7934 1 #SLC 1 #TI 1 #Quadcopter 1 #Drone 1 #Mini2 1 #DJI Mavic Mini 2 1 #DJI Mini 2 1 #UCC24612 2 #JLC 1 #MSB40M 1 #SBDD10200CT 1 #NJH65R600S 1 #PC817 1 #PSIM 1 #UC3842 2 #MOS 2 #EMI 1 #MOSFET 3 #Transformer Winding 1 #Transformer Design 1 #Switching Power Supplies 2 #ACDC 2 #RCD 2 #PQ2620 2 #Flyback Power Supply 2 #Flyback 3 #Flyback Transformer 1 #Mori Garden 1 #Chip 1 #Fast-Charging Protocol Chip 1 #CH224 1 #IC 1 #CH224K 1 #Weekend 3 #Island 1 #Mate70 1 #Mate70Pro+ 2 #Nan'ao Island 1 #Pocket3 1 #DJI Pocket3 1 #DJI 2 #THGAMVG8T13BAIL 1 #W634GU6RB-11 1 #Tollsemi 1 #TNK 1 #QT24A05P 1 #DDR3L 2 #RV1126 1 #RTL8211F 1 #TME7350 1 #nRF54L15 1 #Lontium 1 #Rockchip 1 #FGB-01 1 #Remote Management 1 #Remote Control 1 #eMMC 1 #GL.iNet 1 #GL-RM1 1 #GL-RM1PE 1 #PQ 2 #PFC 1 #Magnetic Component Design 1 #Mn-Zn Ferrite 1 #Ferrite 1 #FeSiAl 1 #Electronic Engineering 5 #Transformer 3 #Power Electronics 5 #AC/DC 3 #Inductor 1 #Magnetic Core Material 1 #Magnetic Core 1 #Magnetic 1 #Magnetic Components 1 #Switching Power Supply 1 #Electronic Information Engineering 2 #RAM Module 1 #Memory 1 #CXMT 1 #AIDA64 1 #DDR5 5600 1 #SO-DIMM 1 #RAM 1 #Memory Module 1 #金邦 1 #GEIL 1 #GaN 2 #Crucial 1 #YT6801 1 #PC41Q-1TB-B 1 #NPU 1 #Arc 140T 1 #AX201 1 #PC41Q 1 #YMTC 1 #JHL9040R 1 #NE153QDM-NY1 1 #255H 1 #Laptop 2 #Ultra7-255H 1 #Code10 1 #Code10 AI 1 #Traffic 1 #Traffic Statistics 1 #PV 1 #UV 1 #UStat 1 #PHP8 1 #EasyBuy 1 #OpenResty 1 #MySQL 1 #CMS 1 #Cross-Border Independent Site 1 #E-Commerce 1 #WooCommerce 1 #Cross-Border E-Commerce 1 #WordPress 1 #LGA7529 1 #MA34-CP0 1 #P5530 1 #皓量云擎 1 #Intel Xeon 6980P 1 #6980P 1 #DC 1 #PWM 1 #TM1621B 1 #CN3765 1 #FP7208 1 #OC6801B 1 #FQD30N04 1 #CMD50P06 1 #SB10100L 1 #SS56 1 #Disassembly 1 #FQD70N10 1 #FQD50N06 1 #LED 1 #Fill Light 1 #Photography Light 1 #COB 1 #ZGRL-80 1 #Micro-Star 1 #4nm 1 #5Gbps 1 #RTL8126 1 #OpenCL 1 #Geekbench 1 #CPU-Z 1 #AM5 1 #FastConnect 7800 1 #Qualcomm 2 #MSI B850M MORTAR WIFI 1 #B850M 1 #MSI 1 #9950X 1 #AMD Ryzen 9 9950X 1 #Battery 1 #E-Bike 1 #Electric Bike 1 #Ebike 1 #TR24 1 #Baiway TR24 1 #Yadea 1 #Coulomb 1 #Coulomb Counter 1 #Forge 2 #Better MC 1 #BMC4 1 #ACME 1 #All in SSL 1 #CA 1 #ALLinSSL 1 #Mojang 2 #WAF 1 #aaWAF 1 #MPPT 1 #MPPT controller 1 #MC4 1 #Lead-acid Batteries 1 #Monocrystalline Silicon 1 #Polycrystalline Silicon 1 #Photovoltaic 1 #Photovoltaic Panels 1 #Solar Panels 1 #Solar Power Station 1 #Solar 1 #Serverless 3 #Kubernetes 2 #K8s 2 #Discuz!X 1 #Rain Cloud Apps 3 #Discuz 1 #RCA 3 #USB3.2 1 #EA3036 1 #MT2492 1 #SC8703 2 #GL3224 1 #SD 1 #TF 1 #RTL8156BG 1 #VL822 1 #VL160 1 #USB HUB 1 #USB3 1 #PHP 3 #BBS 4 #Forum 2 #Flarum 1 #Computer 1 #DDR5 3 #A-Die 1 #CINEBENCH 2 #Geekbench6 2 #SK Hynix 1 #Hynix 1 #LGA1851 1 #MT7925 1 #Asgard 1 #Ultra 2 #Ultra200S 2 #Ultra7 1 #CPU 2 #Motherboard 2 #Mainboard 1 #Z890M 1 #265K 2 #Ultra7 265K 1 #Gigabyte 3 #2242 1 #2230 1 #NVMe 1 #PM991a 1 #Samsung 1 #ASEMI 1 #SS54 1 #PS1045L 1 #SC8724 1 #SC8724QFER 1 #V4852P 1 #JMV4852P 1 #DSWC1R-3S 1 #多凯斯 1 #DockCase 1 #Q3000 1 #MESH 1 #25N01KVZE1R 1 #P3P4GF4BLF-GJS 1 #DDR3 2 #SDRAM 1 #PSMC 1 #Cortex-A53 1 #MT7981 1 #MT7981BA 1 #MT7976 1 #MT7976CN 1 #MTK 2 #IK-Q3000 1 #TL-ST5008F 0 #TL-ST5008F 1 #Network Cabinet 1 #PDU 1 #H50G 1 #TEWA-1108V 1 #R86S 1 #NVR 1 #VISENCH 1 #Server Room 1 #Network equipment 1 #Enterprise Website 1 #Personal Website 1 #1Panel 3 #A101-000101-A1 1 #3D NAND TLC 2 #TLC 2 #SanDisk 022643 1T00 1 #WDS100T4X0E 1 #SN7100 1 #WD 1 #SanDisk 1 #Western Digital 1 #FR9855 1 #Winbond 3 #25VQ40CTIGT 1 #25Q80DVNIC 1 #SGM7222 1 #USB-C 4 #CYPD5126 1 #PI6C557 1 #Thunderbolt 1 #M.2 Hard Disk 3 #Portable Hard Disk 2 #RTL9210 2 #JHL7440 1 #Thunderbolt 3 1 #TBU405ProM1 1 #TBU405Pro 1 #ACASIS 1 #External Hard Disk 2 #Hard Disk Enclosure 3 #Solid State Drive 1 #Hard Disk 2 #Synchronous Rectification 2 #EasyEDA 1 #LCSC 1 #EGmicro 1 #DC-DC 3 #Boost 1 #EG 1 #EG1164 1 #ELNA 1 #JWCO 1 #CEC 1 #ChengX 1 #AISHI 1 #X 1 #Q 1 #D 1 #ESR 1 #Inductors 2 #Cap 1 #Capacitors 1 #Energy 1 #Energy Monitoring 1 #ESP32 1 #HomeAssistant 1 #ESPHome 1 #PZEM-004T 1 #ESP32-C3 1 #Meter 1 #Energy Meter 1 #Three-Phase 1 #LLM 3 #AIGC 1 #AI 7 #OpenWebUI 1 #Ollama 1 #GPT 1 #ChatGPT 1 #LLMs 1 #DeepSeek 2 #DeepSeek-R1 1 #MCSManager 4 #MCSM10 4 #MCSM 4 #MC Server 4 #Minecraft Server 4 #MOD 2 #ModPack 3 #Dragon Adventure 1 #Schematic 2 #OSHWHub 1 #Embedded Competition 1 #CH32 1 #WCH 3 #WinChipHead 1 #CH32V307 1 #CH32V307VCT6 1 #Electronic 7 #Electronic Load 1 #SMPS 7 #Huawei 1 #115N68A 1 #UTC339 1 #MC34063A 1 #EM78M612 1 #ATmega168 1 #AC-DC 2 #AC 3 #DC-AC 1 #Inverter 3 #Electronic Inverter 2 #UPS 2 #D1500 2 #LADS D1500 2 #LADIS 1 #LADS 1 #ZX279133 1 #中兴 1 #Modem 1 #Optical Modem 1 #F7015TV3 1 #ZTE 2 #EC320K01B 1 #Nidec 1 #501CR17 1 #42L84A 1 #PS190 1 #BCM57762 1 #SN26A23 1 #U0PNY8-Y3 1 #Q64NEXGIG 1 #APL1068 1 #APL1067 1 #APL1066 1 #LPDDR5X 1 #Micron 2 #APL1206 1 #Apple M4 1 #SoC 2 #GL3590 1 #macOS 2 #PCs 3 #PC 5 #Apple 2 #M4 1 #Mac 3 #MacMini 2 #Mac Mini 2 #Chairman Mao Memorial Hall 1 #Great Hall of the People 1 #Tian'anmen Rostrum 1 #Mung Bean Juice 1 #Scenery 1 #Tian'anmen 1 #Great Wall 1 #Forbidden City 1 #Wangfujing 1 #Century Bridge 1 #Fudi Night Alley 1 #Hainan Provincial Museum 1 #National Museum of China 1 #Tian'anmen Square 1 #Summer Palace 1 #Yuanming Palace 1 #Old Summer Palace 1 #Wenzhou 1 #Graduation Trip 1 #澳门 1 #北京 1 #海南 1 #海口 1 #Travel 4 #Travel Records 1 #Tourism Records 1 #Hainan 1 #Macau 1 #Haikou 1 #Beijing 1 #China 1 #Tourism 1 #Shenzhen 4 #Life Essays 1 #JW5068A 1 #GD 1 #GigaDevice 2 #5F2GM7REYIG 1 #MLO 1 #MP8009 1 #2.5G PoE 1 #SSID 1 #Ceiling Mounted AP 1 #5GHz 1 #5.8GHz 2 #5.1GHz 1 #2882Mbps 1 #High-Density 1 #Tri-Band 1 #MU-MIMO 1 #X9 1 #IK-X9 2 #WLAN 2 #Wi-Fi7 1 #WiFi7 4 #BE5000 1 #Seoul 1 #Unmetered Bandwidth 1 #Tencent Cloud 1 #86-box 1 #Wi-Fi6 1 #AX3000 2 #AC+AP 2 #IK-W35 2 #爱快 3 #PoE 4 #PoE Switch 2 #Switch 1 #2.5G Switch 2 #10Gbps 2 #2.5Gbps 6 #普联 1 #TP 1 #TP-LINK 1 #SE2109P 1 #TL-SE2109P 2 #DRAM 3 #cache 1 #NAND Flash 2 #Flash 1 #NAND 3 #P25D80SH 1 #ASM2464PD 1 #USB4Gen3 1 #Thunderbolt4 4 #Thunderbolt 3 #M.2 3 #40Gbps 1 #HP 1 #惠普 1 #SSD Enclosure 3 #RIHAO R40 Max 1 #FX900Pro 2 #USB4 4 #RIHAO 1 #PCB 5 #FS312BH 1 #Hardware 3 #DCDC 5 #EG1151 1 #ERYING 1 #Zhejiang 1 #Ningbo 1 #I7-14700 1 #Physical Server 2 #Bare Metal Server 2 #BMS 1 #Dedicated Server 1 #14700HX 1 #14700 1 #I7 1 #IPMI 2 #BMC 2 #CVITEK 1 #A53 2 #ARM 1 #C906 1 #SG2002 1 #T7003C 1 #Kioxia 3 #LT6911UXC 1 #LT6911C 2 #RISC-V 1 #IPKVM 2 #HDMI 1 #IP-KVM 2 #Lichee 1 #NanoKVM 1 #Sipeed 1 #RJ45 1 #SE2420 1 #10G 3 #Switch 2 #TPLINK 3 #TL-SE2420 2 #AP 5 #802.11ax 1 #Ethernet 2 #CR56V4G6NAE8 1 #MT7531AE 1 #Realtek 4 #RTL8221B 2 #5G 3 #2.4G 3 #KCT8539HE 1 #8539HE 1 #FEM 1 #8239SD 1 #KCT8239S 1 #MT7986 1 #MT7986AV 1 #MediaTek 3 #Filogic 830 1 #TD3601-R 1 #25N01GVZEIG 1 #IK-Q6000 2 #Review 13 #Router 3 #Wireless Router 4 #WiFi6 4 #WiFi 7 #iKuai 5 #Recursion 1 #Loop 1 #Multiplication Table 1 #Format 1 #Python 1 #unboxing 8 #Digital Product 1 #UHD 2 #Type-C 6 #4K 2 #Wide-Gamut 1 #Display 1 #HDR 2 #HDR400 2 #优派 1 #ViewSonic 1 #VG2481-4K 1 #4K Monitor 2 #VG2481 1 #screen 2 #monitor 2 #Platinum 1 #Bangkok 1 #Thailand VPS 1 #Alibaba 1 #Lightweight 1 #lightweight 0 #lightweight 2 #Alibaba Cloud 0 #Alibaba Cloud 0 #Alibaba Cloud 0 #Alibaba Cloud 1 #Alibaba Cloud 0 #Thailand 1 #E5-2686v4 1 #Xeon 3 #E5 1 #Korea VPS 2 #ISP 1 #CMI 2 #CUG 1 #CN2 1 #Korea 2 #莱卡云 1 #communications 1 #engineering 1 #dBm 1 #dB 1 #Study Notes 3 #tan 1 #cos 1 #sin 0 #sin 1 #Math 1 #Functions 1 #Trigonometric Functions 1 #Steam CMD 1 #游戏服务器 1 #游戏私服 1 #七日杀 1 #Steam 1 #Game Server 5 #Rainyun 7 #Rain Cloud 7 #雨云 3 #7-Days 1 #7 Days To Die 1 #Teardown 16 #AX200 1 #RTL8125 2 #RTL8125BG 1 #AMD Radeon 780M 1 #780M 1 #锐龙 1 #Ryzen 2 #AMD Ryzen 7 8845H 1 #8845H 1 #imini Pro 820 1 #Mini PC 2 #Mechrevo imini Pro 820 1 #机械革命 1 #Mechrevo 2 #北少云 1 #Minecraft Bedrock 2 #Bedrock 2 #Linux 14 #Debian 4 #BDS 2 #DDoS 2 #CC attacks 2 #CC 2 #blog 3 #Question 1 #Ask 1 #How To Ask Questions The Smart Way 1 #Power Supply 8 #Charger 4 #Desktop Charger 1 #IP6538 2 #IP6557 1 #Fast-Charging Module 1 #Fast-Charging 3 #Open-Source 10 #PD 9 #PD3.1 2 #Tutorial 9 #FCL Launcher 1 #Minecraft Java Edition 4 #smart phone 1 #Android 1 #Game 7 #Java 2 #FCL 1 #我的世界 3 #MC 7 #Minecraft 7 #HDD 1 #SSD 5 #Network 5 #I225-V 1 #QNAP NAS 1 #2.5G 8 #Intel 9 #N6005 1 #Review 8 #NAS 3 #TS-466C 1 #威联通 1 #QNAP 2 #Domain Email 1 #DKIM 1 #Email 1 #Email Server 1 #POP3 1 #IMAP 1 #SMTP 1 #Docker 13 #Poste.io 1 #Mail 1 #Mail Server 1 #Digital Power 1 #Buck-Boost 4 #evening glow 1 #Sunrises 1 #Clouds Glowing 1 #Sunsets 4 #Photos 6 #Casual Shots 7 #AMD Ryzen 9 7900 1 #7900X 0 #AMD 3 #英国 1 #云服务器 1 #Cloud Server 5 #Server 16 #England 1 #UK 1 #VPS 5 #Akile 1 #AkileCloud 1 #FreeSSL 1 #域名证书 1 #SSL证书 1 #Google 2 #Let's Encrypt 2 #ZeroSSL 2 #Domain 2 #Certificate 2 #SSL Certificate 2 #HTTPS 4 #OHTTPS 1 #httpsok 1 #SSL 4 #website 10 #web 13 #杭州中创 1 #中创 1 #East Tester 1 #ET4410 2 #LCR 2 #FreeRTOS 1 #RTOS 1 #ARM 2 #STM32F407VE 1 #SPI 1 #LCD 1 #TFT 1 #STM32F407 1 #LVGL 1 #MSP3526 1 #IIC 1 #I2C 1 #MCU 4 #SSD1306 1 #OLED 1 #Embedded 8 #STM32G474 2 #Power 9 #STM32 3 #Electronics 11 #Circuits 2 #Electronics,Circuits. 2 #Halo 1