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  1. Please give us more information if you would like to receive help.
  2. You will have to open the Eagle schematic with the software and then you will see that the values are linked to the reference number of the parts. This way it will be easy to identify.
  3. Yes, we installed a new layer of defense that seems that did the trick.
  4. It's a Multilayer Ceramic Capacitor MLCC - SMD/SMT 0.22 uF 50V 0603 https://gr.mouser.com/ProductDetail/Murata-Electronics/GCJ188R91H224KA01D?qs=QzBtWTOodeUBgk6Gsyvq%2FA%3D%3D
  5. Without a clear description nobody can help in this matter. Sorry.
  6. This is too generic. Could you be more specific?
  7. It seems not publicly available. I couldn't locate it.
  8. According to the datasheet you can calculate the series resistance R1 using the formula below. This way you can use your desired voltage on the input. I don' t think you need to alter any other component.
  9. Could you give us an idea on the direction you want your topic to be?
  10. It is possible to harvest RF energy to power small loads like a small transmitter or bug but i don't think you can charge a mobile phone as it requires much energy. You can check online for "RF energy harvesting", it's an interesting topic to research and there are some special IC build for this purpose. Let us know your findings. 😉
  11. Would you like that we feature this on the blog?
  12. I would agree, looks like a re-settable fuse to me. Could you measure it in continuity mode to see if it's shorted or not?
  13. They are mostly registering as a plain user, they pass the question, automatic Spam Defense which flags the accounts with spam score and they also approve their email address which is new each time.
  14. I have now added: "How many color bands a typical resistor has?", let's see how it goes and if this guessed easily i will replace it.
  15. Yes it seems so, any idea for an electronics related question?
  16. This feature is enabled on our community but seems spammers get new way to register and post. We keep a close eye on the situation.
  17. Here is another forum topic discussing this power supply. (in Russian) http://forum.cxem.net/index.php?/topic/209045-бп-на-tl081_0-30v-0002-3а-и-его-модификации/ Translated Link: https://translate.google.com/translate?sl=auto&tl=en&u=http%3A%2F%2Fforum.cxem.net%2Findex.php%3F%2Ftopic%2F209045-бп-на-tl081_0-30v-0002-3а-и-его-модификации%2F
  18. SeeedStudio is supporting the maker with this great offer! They will assemble your PCB (5 pieces) for free. You just need to purchase the parts and place the order online. More information: https://www.seeedstudio.com/free-assembly-for-5-pcbs.html
  19. Thanks for attaching the Gerber. Could you give us more information on the rating (votlage/current) of the heating element as well as why this is needed on 3D printers?
  20. I looked around for such a charger, but seems difficult to find a suitable circuit for such high current output. Let see if someone can come up with a schematic.
  21. take a look at these 3 phase motor controllers, http://www.electronics-lab.com/project/3-phase-ac-motor-controller/ http://www.electronics-lab.com/project/inteligent-power-module-ipm-board-brushless-motors/ What kind of motor is yours?
  22. Could you provide the design files or Gerber files, otherwise this is not usefull for the members of the community.
  23. Here is the project page: http://www.electronics-lab.com/project/power-supply-brushless-motor-drivers/ This board produces 400V output to power Brushless Servo Drivers, mainly IPM Modules. It is not able to drive the motor. For this purpose you will need a driver board. We can produce this board if order quantity is > 25 pieces. If this interests you, i can quote for that. An Arduino can be used to produce the control signals for the control board.
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