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Ya build Bugatti's of the ecig world, I know this one is as awesome.
If only ya could get a look at some of those secretive Chinese chips to have choice at using.
I can follow most including the fact you are feeding Vin from the charge pump and firing with a pmos on the low side of the inductor.
Maybe I cant see the forest for the trees, but where are you taking atty negative from? Common connection of high side driver, low side driver, and inductor?
I think I understand what you're saying, but just to clarify......
I'm picking up atomizer negative at battery positive, after the main switch.
At first thought it seems that the output voltage would increase as B+ voltage decreases unless the feedback loop was altered?
Yes, I followed the circuit as you describe.Ah, you have enlightened me. Very clever. At first thought it seems that the output voltage would increase as B+ voltage decreases unless the feedback loop was altered? I haven't went back and traced that as I am mobile now.
who do yuo use or your pcb prototypes if you dont mind?
Hi guys, i'm new here!wow, great works and development Craig! i've been hurting my head trying to build my own booster circuit, how i wished i would have seen your works earlier!! just to share, this is around 10W buck circuit i produced with a friend. usually i play with low current 5V circuitry, this is my first time trying to build high current circuit so i solely rely on my friend for the high current part. so he produced the schematic of the H-Bridge without both knowing what output the circuit could achieve there are some mistakes with the connections of the 4 layer board (also 1st time for me to produce such PCB), with some drilling and jumpers, the PCB works except for the OLED part.i learned A LOT on this new experience, so much new stuff!!currently we are building a new revision based on the boost topology. the design & PCB is ready, however i'm waiting for my OLED breakout that i should receive in a few days so that i can confirm the connections. it should be straight forward especially if using 3.3V microC, however the previous design used 5V and i also chose the wrong level converter IC (CD4504B).hoping to learn more from this forum especially when i have the time to read back all the posts, TQ!
wow, great works and development Craig! i've been hurting my head trying to build my own booster circuit, how i wished i would have seen your works earlier!!
the China builders boast 96% on the sx 350
In the end, the high power stuff is probably more grandstanding than anything else. I admit I'm guilty of that to some extent. The vast majority of vapers have no need for that kind of power.