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Petr Dvořák

HW designer and consultant

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Manufacturing

AC booster

AC booster device

🚀🚀🚀 A new instrument for my lab I have had the ingenious Adjustable Transformer EA-STT 2000 B-4.5A for almost 6 years.  Its output voltage is 260 VAC. Now I need to test a new device at 380 VAC.  I purchased

Petr Dvořák 15 března, 202325 února, 2023 #ukazcodelas Čtěte více

A new gem

A completed Wearable device

🚀🚀🚀 Complete Wearable device, ready for programming In the picture, you can see both units of the Wearable device prototype I manufactured recently. Both units are identical. 1️⃣ STM32L051 2️⃣ 6-axis IMU 3️⃣ a complete BMS with a trailing buck/boost

Petr Dvořák 14 března, 202325 února, 2023 #ukazcodelas Čtěte více

Complete assemblies

Finished board assembly

🆕🆕🆕 New wearable board is born After a while, two beautiful board assemblies are finished and ready for another step. 1️⃣ careful optical check 2️⃣ careful electrical check 3️⃣ SWD and firmware part Both board assemblies came perfectly. I am

Petr Dvořák 13 března, 202324 února, 2023 #ukazcodelas Čtěte více

Wearable device manufacturing

Wearable device manufacturing

🛠🛠🛠 Manufacturing of the new wearable device Not so long ago, I wrote about a concept of a wearable device I was working on. Today, I am ready to assemble the prototype boards. I am going to prepare two prototypes.

Petr Dvořák 10 března, 202324 února, 2023 #ukazcodelas Čtěte více

Current sensor replacement

Hall current sensor soldering and replacing

🛠🛠🛠 Soldering is my passion. If i have my soldering iron and the Chip Quik flux nobody can beat me. In the pictures, you can see the replacement process. 1️⃣ An old, TMCS1107 current sensor device 2️⃣ An empty place

Petr Dvořák 10 února, 202319 ledna, 2023 #ukazcodelas Čtěte více

Buck for buck

A replacement job for a buck converter.

🛠🛠🛠 Buck replacement On a board I have worked for a while, there is a buck converter of a type RP604K281A by @Nisshinbo Micro Devices Inc. The device is ingenious. There is no need for a feedback voltage divider at

Petr Dvořák 31 ledna, 202318 ledna, 2023 #ukazcodelas Čtěte více

HW review hurts!

Hardware Review offer

💊💊💊 Hardware design review hurts! Our egos cry for help. My ego used to not even think about the possibility of letting anyone criticise my pimped schematic or a PCB layout. It is pretty standard. Everyone’s experienced this bad feeling.

Petr Dvořák 25 ledna, 202330 prosince, 2022 #ukazcodelas Čtěte více

Secret oven project

Stencil bed for solder paste application

🛠🛠🛠 Working on a secret project My customer does not want me to disclose anything. I believe this picture is not something disclosing any details of the project. As usual, a stencil and PCBs of the same thickness make a

Petr Dvořák 5 ledna, 20239 prosince, 2022 #ukazcodelas Čtěte více

Thrifty man

Finishing the controller assembly

🏭🏭🏭 Testing, modifying, testing, modifying… I have been working on the power supply controller boards to finalise their assembly. I always solder the biggest or difficult-to-unsolder components as the last step. The reason is to save time and money. If

Petr Dvořák 15 prosince, 202212 listopadu, 2022 #ukazcodelas Čtěte více

Album for resistors

Album for resistors, MCINSERT-CHIPKIT

🏭🏭🏭 My source of resistance There is a strong source of resistance between me and the world. All this is stored in a great book of magic. 🎯 7 decades for size 0603 MCINSERT-CHIPKIT at Farnell.  == 🏭🏭🏭 Moje sídlo

Petr Dvořák 13 prosince, 202212 listopadu, 2022 #ukazcodelas Čtěte více
  • « Předchozí
Fotografie Petr Dvořák

✉️ vyvijim@idvorak.info
📞 +420 604889514

My contact

Poznaňská 2461/5
616 00 Brno-Žabovřesky

+420 604889514

vyvijim@idvorak.info

My latest work

Hardware testing in progress

Vise

3:40 pm 27 Bře 2023
Neopixel driver is ready

Neopixel driver

7:32 am 24 Bře 2023
TrueRMS measurement on an oscilloscope

TrueRMS measurement

8:31 am 23 Bře 2023

Links

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ABB BeastH7 Beny-devices BLE Books CAG CAGBLE CANopen CircuitPython Code DAC Datalogger Development ESP32 EtherCAT HDT IQRF kicad kit LTspice Manufacturing mikroBUS ML NFC NN PanConnect PoE Power Presentations Qi RCcar Review Rework Sensor Stepper STM32 Studium TIA Tip Tooling Top Trinamic USB-PD USBtag ČMI
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