Thanks a Lot! the main reason of this is learning always, love electronics, so I will take a really good look to the link you attached.
Let´s see If I find a way to change the design to it works. Thanks a lot I will tell you How is going on El mié., 24 jun. 2020 a las 15:04, Kevin A. (<[email protected]>) escribió: > So if you really want to make this project work, then it's probably best > you start with a fresh layout. The PCB layout that you started with needs a > lot of work. > > Believe me, I made the same mistakes when I first started designing high > voltage power supplies. Take a look this article I wrote which describes > how I learned about and designed a high voltage boost converter: > https://neonkev.com/2019/08/18/project-20-watt-high-voltage-boost-converter/ > > Your design is a flyback converter, but a lot of the same pcb design still > applies. I'll also find some of the articles I read which really helped > with my design. > > Once we have a good layout, then we can work on picking the right values > for the feedback resistors and choosing all the other components. There is > a bit of a learning curve but be patient, read carefully and learn, and you > will make a working design soon enough! > > On Wed, Jun 24, 2020, 8:49 AM Paul Andrews <[email protected]> wrote: > >> Read the layout recommendations in the LT1308A datasheet. You will need >> to adapt it to this configuration. >> >> What is the voltage rating of the 47k resistor? What are the voltage >> ratings of the 10nF capacitors? What is the voltage rating of BAV21W? What >> is the saturation current of the transformer? >> >> On Wednesday, June 24, 2020 at 6:46:01 AM UTC-4, MrThe50sanchez wrote: >>> >>> Hello! Thanks for the response! >>> >>> I add here again the PCB layers that Im using. >>> >>> >>> El martes, 23 de junio de 2020, 23:40:06 (UTC+2), Kevin A. escribió: >>>> >>>> What does your layout look like? Show us a picture of the pcb with the >>>> layers visible. >>>> >>>> Just the layout of the board can make or break a DC-DC converter with >>>> all of the high current transients and control signals. >>>> >>>> On Tue, Jun 23, 2020, 4:22 PM MrThe50sanchez <[email protected]> >>>> wrote: >>>> >>>>> >>>>> Hello Again, hope everyone is good! >>>>> >>>>> I was trying to make a DC-DC booster converter using the LT1308B/A >>>>> device, I made a PCB for it, doing the same as the datasheet of this >>>>> device >>>>> says, but I don´t get the High Votage, and that`s >>>>> why im here asking for help, I tried a lot of things put don`t know >>>>> what it can be. >>>>> >>>>> This is the schematic I use (This one is from the datasheet) : >>>>> >>>>> >>>>> The PCB I made is the same as this schematic and using the same >>>>> components, Im using a *rechargable battery CR2 800mAh 3.0V Li-on.* >>>>> >>>>> *Any Ideas of what I can do to find what is going wrong?* >>>>> >>>>> *I have LBI and LB0 from the LT1308 Device not connected to anything. >>>>> */SHDN pin is connected to Vin, Positive Voltage to It works. >>>>> *Because I want 180V output voltage I have resistor from FB R1 = 47K >>>>> and R2 = 300 Ohm to get 1,21V Feedback. >>>>> *The capacitors Im using (10nF 250v) are not electrolitic, they are >>>>> normal ones. >>>>> >>>>> >>>>> Thankss Guys! >>>>> >>>>> -- >>>>> You received this message because you are subscribed to the Google >>>>> Groups "neonixie-l" group. >>>>> To unsubscribe from this group and stop receiving emails from it, send >>>>> an email to [email protected]. >>>>> To view this discussion on the web, visit >>>>> https://groups.google.com/d/msgid/neonixie-l/7d2fbb96-d88c-4341-b89a-2ab723f403dao%40googlegroups.com >>>>> <https://groups.google.com/d/msgid/neonixie-l/7d2fbb96-d88c-4341-b89a-2ab723f403dao%40googlegroups.com?utm_medium=email&utm_source=footer> >>>>> . >>>>> >>>> -- >> You received this message because you are subscribed to the Google Groups >> "neonixie-l" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> To view this discussion on the web, visit >> https://groups.google.com/d/msgid/neonixie-l/88551fe2-e03e-4d81-aaf9-794b0a7f5f68o%40googlegroups.com >> <https://groups.google.com/d/msgid/neonixie-l/88551fe2-e03e-4d81-aaf9-794b0a7f5f68o%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> > -- > You received this message because you are subscribed to the Google Groups > "neonixie-l" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web, visit > https://groups.google.com/d/msgid/neonixie-l/CALcVLKJQDO%3D%2B_TKb1r23EJ09r9GkVAwoJ%3DTCNuqJ3cg8W14GAg%40mail.gmail.com > <https://groups.google.com/d/msgid/neonixie-l/CALcVLKJQDO%3D%2B_TKb1r23EJ09r9GkVAwoJ%3DTCNuqJ3cg8W14GAg%40mail.gmail.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/CAMyLbsFiA8b0Crmo15Dv42_NBOZdvyRw1VK8AYmao7Dr9D9AVA%40mail.gmail.com.
