<div class="entry-content">
 <div class="jetpack-video-wrapper"><iframe
 class="youtube-player"
 src="https://www.youtube.com/embed/IuKfJN27w_g?version=3&rel=1&showsearch=0&showinfo=1&iv_load_policy=1&fs=1&hl=en&autohide=2&wmode=transparent"
 allowfullscreen="true"
 style="border: 0px; display: block; margin: 0px; width: 740px; height: 416.418px;"
 sandbox="allow-scripts allow-same-origin allow-popups allow-presentation"
 data-ratio="0.5627272727272727" data-width="1100" data-height="619"></iframe>
 </div>
 <div class="blog-content">
Measuring and burning PCB tracks. 
 </div>
 
 <div class="blog-content-links">
 <div>
 Links:
 </div>
 <ul class="links-list">
 <li class="links-list-item"><a href="https://www.linkedin.com/in/eric-bogatin-368860/">Eric's Linked In</a></li>
 <li class="links-list-item"><a href="https://youtu.be/LQ20GBonRmA">PCB Simulation vs. Real Board - DC Currents and Voltage drop</a></li>
 <li class="links-list-item"><a href="https://fedevel.com/courses">FEDEVEL Online courses</a></li>
 </ul>
 </div> 
</div>

How Much Current Will Destroy a PCB Track? | Track resistance measurements

<div class="entry-content">
 <div class="jetpack-video-wrapper"><iframe
 class="youtube-player"
 src="https://www.youtube.com/embed/UpFd6ubqTLI?version=3&rel=1&showsearch=0&showinfo=1&iv_load_policy=1&fs=1&hl=en&autohide=2&wmode=transparent"
 allowfullscreen="true"
 style="border: 0px; display: block; margin: 0px; width: 740px; height: 416.418px;"
 sandbox="allow-scripts allow-same-origin allow-popups allow-presentation"
 data-ratio="0.5627272727272727" data-width="1100" data-height="619"></iframe>
 </div>
 <div class="blog-content">
Op-amps explained: how they work and what are their important parameters. 
 </div>

 <div class="blog-content-chapters">
 <div>
 Chapters:
 </div>
 <ul class="chapters-list">
 <li class="chapters-list-item">00:00What is this video about</li>
 <li class="chapters-list-item">00:29Why to use operational amplifier</li>
 <li class="chapters-list-item">02:21Ideal op amp</li>
 <li class="chapters-list-item">07:00How inverting op amp works</li>
 <li class="chapters-list-item">12:13How non-inverting op amp works</li>
 <li class="chapters-list-item">13:25Op amp working as a buffer</li>
 <li class="chapters-list-item">15:42Op amp working as a current reference</li>
 <li class="chapters-list-item">20:09Input offset voltage</li>
 <li class="chapters-list-item">28:15Input offset voltage simulation</li>
 <li class="chapters-list-item">30:50Input offset voltage measurement</li>
 <li class="chapters-list-item">35:04Input bias current</li>
 <li class="chapters-list-item">37:20Input bias current measurement</li>
 <li class="chapters-list-item">41:00Op-amp Bandwidth</li>
 <li class="chapters-list-item">43:59Op-amp Bandwidth measurement</li>
 <li class="chapters-list-item">48:50Op-amp Bandwidth simulation</li>
 <li class="chapters-list-item">50:23Operational amplifier slew rate</li>
 <li class="chapters-list-item">51:28Slew rate simulation</li>
 <li class="chapters-list-item">53:07Slew rate measurement</li>
 <li class="chapters-list-item">55:48Slew rate impact to sinusoidal output</li>
 <li class="chapters-list-item">1:00:28Op amp noise</li>
 <li class="chapters-list-item">1:07:38Op amp noise measurement</li>
 <li class="chapters-list-item">1:10:57Op amp noise simulation</li>
 <li class="chapters-list-item">1:15:36Input and output voltage swing</li>
 <li class="chapters-list-item">1:16:45Common mode range</li>
 <li class="chapters-list-item">1:19:14Common mode range simulation</li>
 <li class="chapters-list-item">1:20:04Common mode range measurement</li>
 <li class="chapters-list-item">1:22:31Op amp output range</li>
 <li class="chapters-list-item">1:28:17Op-amp stability</li>
 <li class="chapters-list-item">1:29:59Op-amp stability simulation</li>
 <li class="chapters-list-item">1:32:20Op-amp stability measurement</li>
 <li class="chapters-list-item">1:38:51pH Electrometer solution - practical example</li>
 <li class="chapters-list-item">1:46:19Measuring pH</li>
 </div>
 
 <div class="blog-content-links">
 <div>
 Links:
 </div>
 <ul class="links-list">
 <li class="links-list-item"><a href="https://www.linkedin.com/in/arthur-kay-a5201929/">Arthur´s LinkedIn</a></li>
 <li class="links-list-item"><a href="https://www.linkedin.com/in/zach-olson-vt/">Zach´s LinkedIn</a></li>
 <li class="links-list-item"><a href="https://fedevel.com/courses">FEDEVEL Online courses</a></li>
 </ul>
 </div> 
</div>

Everything Important About OP AMP (Operational amplifier)

<div class="entry-content">
 <div class="jetpack-video-wrapper"><iframe
 class="youtube-player"
 src="https://www.youtube.com/embed/pdzQ-kgLbFw?version=3&rel=1&showsearch=0&showinfo=1&iv_load_policy=1&fs=1&hl=en&autohide=2&wmode=transparent"
 allowfullscreen="true"
 style="border: 0px; display: block; margin: 0px; width: 740px; height: 416.418px;"
 sandbox="allow-scripts allow-same-origin allow-popups allow-presentation"
 data-ratio="0.5627272727272727" data-width="1100" data-height="619"></iframe>
 </div>
 <div class="blog-content">
This video includes explanation of battery charging and safety schematic circuits. 
 </div>
 

 <div class="blog-content-chapters">
 <div>
 Chapters:
 </div>
 <ul class="chapters-list">
 <li class="chapters-list-item">00:00What is this video about</li>
 <li class="chapters-list-item">01:33Types of cells and batteries</li>
 <li class="chapters-list-item">05:43CID and PTC battery protection</li>
 <li class="chapters-list-item">08:44Prismatic cells</li>
 <li class="chapters-list-item">10:37Pouch cells</li>
 <li class="chapters-list-item">16:02Lithium Ion (Li-Ion)</li>
 <li class="chapters-list-item">17:28Peak charge and nominal voltage, end of discharge voltage</li>
 <li class="chapters-list-item">20:30Thermal runaway</li>
 <li class="chapters-list-item">22:32Lithium Iron Phosphate (LiFePO4)</li>
 <li class="chapters-list-item">26:15Nickel Metal Hydride (NIHM)</li>
 <li class="chapters-list-item">29:23How cells are connected together</li>
 <li class="chapters-list-item">32:31Battery testing standards</li>
 <li class="chapters-list-item">36:38Battery safety circuit - Safety features</li>
 <li class="chapters-list-item">44:28Battery safety schematic circuit explained</li>
 <li class="chapters-list-item">55:31Safety circuit integrated in batteries, shipping and transport</li>
 <li class="chapters-list-item">1:06:04Battery charging schematic circuit explained</li>
 <li class="chapters-list-item">1:21:01Battery charging schematic circuit example 2</li>
 <li class="chapters-list-item">1:27:23About Alex</li>
 </li>
 </ul>
 </div>

 <div class="blog-content-links">
 <div>
 Links:
 </div>
 <ul class="links-list">
 <li class="links-list-item"><a href="https://www.linkedin.com/in/alex-norman-eetengineer/">Alex´ LinkedIn</a></li>
 <li class="links-list-item"><a href="https://www.youtube.com/@eetengineer">Alex´s Youtube</a></li>
 <li class="links-list-item"><a href="https://fedevel.com/courses">FEDEVEL Online courses</a></li>
 </ul>
 </div> 
</div>

Powering Up Your Board From a Battery? You need to know this ...

<div class="entry-content">
 <div class="jetpack-video-wrapper"><iframe
 class="youtube-player"
 src="https://www.youtube.com/embed/8RiLKnczvxs?version=3&rel=1&showsearch=0&showinfo=1&iv_load_policy=1&fs=1&hl=en&autohide=2&wmode=transparent"
 allowfullscreen="true"
 style="border: 0px; display: block; margin: 0px; width: 740px; height: 416.418px;"
 sandbox="allow-scripts allow-same-origin allow-popups allow-presentation"
 data-ratio="0.5627272727272727" data-width="1100" data-height="619"></iframe>
 </div>
 <div class="blog-content">
In this tutorial you will learn how to draw schematic, do PCB layout, design a box and how to manufacture everything. As an example you will design USB-C Power Supply.
 </div>
 
<div class="blog-content-chapters">
 <div>
 Chapters:
 </div>
 <ul class="chapters-list">
 <li class="chapters-list-item">00:00What you will create</li>
 <li class="chapters-list-item">00:52Start a new project in EasyEDA</li>
 <li class="chapters-list-item">02:50Adding USB-C connector to schematic</li>
 <li class="chapters-list-item">04:56Adding output connector</li>
 <li class="chapters-list-item">06:24Connecting USB-C</li>
 <li class="chapters-list-item">07:34Connecting USB-C CC1 and CC2 pins</li>
 <li class="chapters-list-item">08:23Adding 5.1k resistors</li>
 <li class="chapters-list-item">09:53Adding 100nF capacitors</li>
 <li class="chapters-list-item">11:47Adding LED</li>
 <li class="chapters-list-item">12:54Adding 1k resistor</li>
 <li class="chapters-list-item">14:57Selecting in EasyEDA</li>
 <li class="chapters-list-item">15:43Naming nets</li>
 <li class="chapters-list-item">16:11Creating your own component - Mounting holes</li>
 <li class="chapters-list-item">17:51Creating footprint in EasyEDA</li>
 <li class="chapters-list-item">19:24Adding mounting holes to schematic</li>
 <li class="chapters-list-item">20:49Adding CC pin info into schematic</li>
 <li class="chapters-list-item">23:26Annotating schematic</li>
 <li class="chapters-list-item">24:27Enable support for color PCB silkscreen</li>
 <li class="chapters-list-item">24:41Schematic check - Running ERC</li>
 <li class="chapters-list-item">24:55Starting PCB</li>
 <li class="chapters-list-item">25:30Placing big components in PCB (MH, J)</li>
 <li class="chapters-list-item">26:35Define board shape</li>
 <li class="chapters-list-item">27:26Placing small components (R, C, D)</li>
 <li class="chapters-list-item">29:12JLCPCB manufacturing capabilities</li>
 <li class="chapters-list-item">29:48Setting up PCB design rules</li>
 <li class="chapters-list-item">30:54Hide reference designators</li>
 <li class="chapters-list-item">31:05Starting PCB Layout</li>
 <li class="chapters-list-item">31:53Connecting CC pins</li>
 <li class="chapters-list-item">32:21Connecting GND</li>
 <li class="chapters-list-item">35:02Draw DIODE connection</li>
 <li class="chapters-list-item">35:20Making changes in schematic and transferring them to PCB</li>
 <li class="chapters-list-item">36:13Working with polygons (updating, thermal relief)</li>
 <li class="chapters-list-item">37:13Connecting +5V</li>
 <li class="chapters-list-item">39:15Prohibited region</li>
 <li class="chapters-list-item">39:57Place reference designators</li>
 <li class="chapters-list-item">41:40Adding text on silkscreen</li>
 <li class="chapters-list-item">46:34Adding gold logo</li>
 <li class="chapters-list-item">48:17Adding color image on silkscreen</li>
 <li class="chapters-list-item">49:28Starting BOX (enclosure)</li>
 <li class="chapters-list-item">51:45Add openings for connectors</li>
 <li class="chapters-list-item">57:11Add opening for LED</li>
 <li class="chapters-list-item">59:13Adding support for screws</li>
 <li class="chapters-list-item">1:03:16Adding + and - signs</li>
 <li class="chapters-list-item">1:05:15Exporting 3D model and 3D printing box</li>
 <li class="chapters-list-item">1:07:32Generating manufacturing outputs</li>
 <li class="chapters-list-item">1:08:16Generating gerber files for color PCB</li>
 <li class="chapters-list-item">1:10:43Replacing color picture with a standard one</li>
 <li class="chapters-list-item">1:12:11Generating gerber files for standard PCB</li>
 <li class="chapters-list-item">1:13:45Generating BOM (Bill of material)</li>
 <li class="chapters-list-item">1:14:43Generating Pick and Place file</li>
 <li class="chapters-list-item">1:15:47Ordering our boards: PCB and Assembly</li>
 <li class="chapters-list-item">1:18:23Ordering box</li>
 <li class="chapters-list-item">1:23:19Finishing ordering</li>
 <li class="chapters-list-item">1:24:53Ordering missing connector</li>
 <li class="chapters-list-item">1:26:02Confirming placement and box manufacturing</li>
 <li class="chapters-list-item">1:27:51Unpacking our boards</li>
 <li class="chapters-list-item">1:28:19Unpacking the 3D printed boxes / enclosures</li>
 <li class="chapters-list-item">1:29:09Inspecting the board, soldering down the missing connector</li>
 <li class="chapters-list-item">1:29:52Measuring our board</li>
 <li class="chapters-list-item">1:30:34Placing board inside of 3D printed box</li>
 <li class="chapters-list-item">1:31:05Testing our board</li>
 <li class="chapters-list-item">1:32:11Thank you very much for watching</li>
 </div>

 <div class="blog-content-links">
 <div>
 Links:
 </div>
 <ul class="links-list">
 <li class="links-list-item"><a href="https://fedevel.com/courses">FEDEVEL Online courses</a></li>
 </ul>
 </div> 
</div>

How to Make a Custom PCB in 2 Hours | Full Tutorial | EasyEDA

<div class="entry-content">
 <div class="jetpack-video-wrapper"><iframe
 class="youtube-player"
 src="https://www.youtube.com/embed/jTBOSob5MLg?version=3&rel=1&showsearch=0&showinfo=1&iv_load_policy=1&fs=1&hl=en&autohide=2&wmode=transparent"
 allowfullscreen="true"
 style="border: 0px; display: block; margin: 0px; width: 740px; height: 416.418px;"
 sandbox="allow-scripts allow-same-origin allow-popups allow-presentation"
 data-ratio="0.5627272727272727" data-width="1100" data-height="619"></iframe>
 </div>
 <div class="blog-content">
This is how boards are made. Watch how PCB is manufactured and how boards are assembled. 
 </div>
 

 <div class="blog-content-chapters">
 <div>
 Chapters:
 </div>
 <ul class="chapters-list">
 <li class="chapters-list-item">00:00What is this video about</li>
 <li class="chapters-list-item">00:14Raw material cut to panels</li>
 <li class="chapters-list-item">01:21Cleaning PCB</li>
 <li class="chapters-list-item">02:59Photosensitive film applied (Building layers L2 & L3)</li>
 <li class="chapters-list-item">03:56Exposing L2, L3</li>
 <li class="chapters-list-item">05:39Developing L2, L3</li>
 <li class="chapters-list-item">06:36Etching L2, L3</li>
 <li class="chapters-list-item">07:27Removing photosensitive layer</li>
 <li class="chapters-list-item">08:01AOI - Automated Optical Inspection</li>
 <li class="chapters-list-item">08:55Making copper rougher</li>
 <li class="chapters-list-item">10:43Adding prepreg</li>
 <li class="chapters-list-item">11:19Adding copper sheets - Top and Bottom layer (L1, L4)</li>
 <li class="chapters-list-item">13:01Baking PCBs, oven room</li>
 <li class="chapters-list-item">14:54Splitting to two panels again</li>
 <li class="chapters-list-item">17:06Adding aluminum sheet</li>
 <li class="chapters-list-item">17:30Drilling</li>
 <li class="chapters-list-item">19:39Plating</li>
 <li class="chapters-list-item">20:52Electroless plating</li>
 <li class="chapters-list-item">24:18Electroplating</li>
 <li class="chapters-list-item">27:35Applying photosensitive film on L1 and L4</li>
 <li class="chapters-list-item">28:19Exposing L1, L4</li>
 <li class="chapters-list-item">30:15Developing L1, L4</li>
 <li class="chapters-list-item">31:24Applying tin layer</li>
 <li class="chapters-list-item">33:30Removing photosensitive layer from L1, L4</li>
 <li class="chapters-list-item">34:38Etching L21 L4</li>
 <li class="chapters-list-item">34:50Removing tin layer</li>
 <li class="chapters-list-item">35:48AOI - Automated Optical Inspection</li>
 <li class="chapters-list-item">36:35Optional electrical testing</li>
 <li class="chapters-list-item">37:53Adding solder mask color</li>
 <li class="chapters-list-item">40:06Exposing solder mask</li>
 <li class="chapters-list-item">41:55Developing solder mask</li>
 <li class="chapters-list-item">43:27Making silkscreen</li>
 <li class="chapters-list-item">47:23Gold plating</li>
 <li class="chapters-list-item">49:54Optical inspection, fixing, measuring</li>
 <li class="chapters-list-item">51:08Electrical test</li>
 <li class="chapters-list-item">52:13Milling - Removing PCB from big panel</li>
 <li class="chapters-list-item">53:36V-Score</li>
 <li class="chapters-list-item">55:34Packing PCB</li>
 <li class="chapters-list-item">56:32Board Assembly</li>
 <li class="chapters-list-item">57:34Inserting components into feeders</li>
 <li class="chapters-list-item">58:51Stencil & Paste</li>
 <li class="chapters-list-item">59:18Setting up component placement</li>
 <li class="chapters-list-item">59:51Checking placement with AOI</li>
 <li class="chapters-list-item">1:00:42Soldering - Going to owen</li>
 <li class="chapters-list-item">1:01:15Checking after soldering</li>
 <li class="chapters-list-item">1:01:56Assembling a board</li>
 <li class="chapters-list-item">1:04:31Manual checking</li>
 <li class="chapters-list-item">1:04:56Fitting through hole components</li>
 <li class="chapters-list-item">1:05:58Wave soldering</li>
 <li class="chapters-list-item">1:07:17Conformal coating</li>
 <li class="chapters-list-item">1:07:57Packing assembled board</li>
 <li class="chapters-list-item">1:08:303D printing</li>
 <li class="chapters-list-item">1:11:02Done. Packing and shipping</li>
 </ul>
 </div>

 <div class="blog-content-links">
 <div>
 Links:
 </div>
 <ul class="links-list">
 <li class="links-list-item"><a href="https://jlcpcb.com/">JLCPCB</a></li>
 <li class="links-list-item"><a href="https://fedevel.com/courses">FEDEVEL Online courses</a></li>
 </ul>
 </div> 
</div>

Walking Through a Big PCB Factory in China | JLCPCB

<div class="entry-content">
 <div class="jetpack-video-wrapper"><iframe
 class="youtube-player"
 src="https://www.youtube.com/embed/xYoI84zJew?version=3&rel=1&showsearch=0&showinfo=1&iv_load_policy=1&fs=1&hl=en&autohide=2&wmode=transparent"
 allowfullscreen="true"
 style="border: 0px; display: block; margin: 0px; width: 740px; height: 416.418px;"
 sandbox="allow-scripts allow-same-origin allow-popups allow-presentation"
 data-ratio="0.5627272727272727" data-width="1100" data-height="619"></iframe>
 </div>
 <div class="blog-content">
 Firmware and bring-up tutorial for custom hardware based on STM32WB BLE microcontrollers.
 </div>
 <div class="blog-content-chapters">
 <div>
 Chapters:
 </div>
 <ul class="chapters-list">
 <li class="chapters-list-item">00:00Introduction</li>
 <li class="chapters-list-item">00:39Hardware Design Tutorials</li>
 <li class="chapters-list-item">02:11Schematic Walkthrough</li>
 <li class="chapters-list-item">04:03Software Tools and Debugger</li>
 <li class="chapters-list-item">06:20STM32CubeProgrammer & USB DFU</li>
 <li class="chapters-list-item">09:27FUS & BLE Stack</li>
 <li class="chapters-list-item">14:01CubeIDE Project, SWD & HSE/LSE Set-Up</li>
 <li class="chapters-list-item">17:02USB Set-Up</li>
 <li class="chapters-list-item">18:10RF/BLE Set-Up</li>
 <li class="chapters-list-item">25:00Clocking</li>
 <li class="chapters-list-item">25:45Flashing Firmware & USB Fix</li>
 <li class="chapters-list-item">27:59Bluetooth Test</li>
 <li class="chapters-list-item">29:44Bluetooth & USB Test</li>
 <li class="chapters-list-item">33:02Outro</li>
 </div>
 <div class="blog-content-links">
 <div>
 Links:
 </div>
 <ul class="links-list">
 <li class="links-list-item"><a href="https://www.youtube.com/watch?v=nkHFoxe0mrU">KiCad 7 STM32 Bluetooth Hardware Design (1/2 Schematic)</a></li>
 <li class="links-list-item"><a href="https://www.youtube.com/watch?v=PlXd3lLZ4vc">KiCad 7 STM32 Bluetooth Hardware Design (2/2 PCB)</a></li>
 <li class="links-list-item"><a href="https://www.st.com/en/development-tools/stm32cubeprog.html">STM32CubeProgrammer 7</a></li>
 <li class="links-list-item"><a href="https://www.st.com/en/development-tools/stm32cubeide.html">STM32CubeIDE 7</a></li>
 <li class="links-list-item"><a href="https://www.st.com/en/development-tools/stlink-v3set.html">STLink</a></li>
 <li class="links-list-item"><a href="https://www.tag-connect.com/solutions-target-devices/stm32">Tag-Connect 7</a></li>
 <li class="links-list-item"><a href="https://learn.adafruit.com/introduction-to-bluetooth-low-energy/gatt">Adafruit GATT</a></li>
 <li class="links-list-item"><a href="https://community.st.com/t5/stm32-mcus/configuring-stm32wb-for-bluetooth-le-without-an-lse-crystal/ta-p/49465">BLE without LSE</a></li>
 <li class="links-list-item"><a href="https://community.st.com/t5/stm32-mcus-wireless/usb-device-does-not-work-when-starting-ble-stack-on-stm32wb55/td-p/176360">USB fix</a></li>
 <li class="links-list-item"><a href="https://www.youtube.com/playlist?list=PLnMKNibPkDnG9JRe2fbOOpVpWY7E4WbJ-">STM32WB Getting Started Playlist</a></li>
 <li class="links-list-item"><a href="https://github.com/STMicroelectronics/STM32CubeWB/tree/master/Projects/STM32WB_Copro_Wireless_Binaries">STM32WB Copro Binaries</a></li>
 
 <li class="links-list-item"><a href="https://fedevel.com/courses/advanced-digital-hardware-design">Advanced Digital Hardware Design course</a></li>
 <li class="links-list-item"><a href="https://fedevel.com/courses/mixed-signal-hardware-design-with-kicad">Mixed-signal Hardware Design course</a></li>
 <li class="links-list-item"><a href="https://fedevel.com/courses">FEDEVEL courses</a></li>
 </ul>
 </div> 
</div>

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