About GGibb.1

GGibb.1 · 2024-03-22

Hello, I need to be able to generate a small DC voltage from an AC voltage. The App Note 4260 looked absolutely perfect - exactly what I needed - 12V 150mA buck converter. Simple. no flyback transformers, etc. But I was a bit confused as to the GN...

GGibb.1 · 2021-05-31

I have a simple project I am trying to implement using BLUENRG2-M2SA. It will connect with a user over BT and download a timer length. Then it will run the timer and blink lights when the timer counts to zero. The user then acknowledges the lights...

GGibb.1 · 2021-05-18

In the datasheet, it gives a formula, R = (Vi(min)-Vxx -Vdrop(max)) / (IO(max)+Id(max))My IO is 0.1A, My output voltage is 5V. My input is currently 24V. I saw some discussion that I think I should consider the Vdrop to be 7V. Is Vxx the voltage I...

GGibb.1 · 2021-03-15

M2SA or M2SP device looks promising. What isn't clear to me is if this module needs to interact with a separate micro for my program? or is there room for my program in this module? I am trying to do an energy analysis.

GGibb.1 · 2024-03-22

So none of the triangle grounds are connected to my PCB ground?

GGibb.1 · 2021-06-03

Not necessarily. I was wondering what happens if you put a signal on the reset pin after the device was awake, - ideal for me would be if it acted like some sort of interrupt. Or if it doesn't do anything really disruptive (like a total reboot or ...

GGibb.1 · 2021-05-19

Thank you. So for a 12V supply, possibly something more in the 27 ohm range with a 0.5W rating might work.

GGibb.1 · 2021-05-19

I am trying. That is why I am switching to 12V. There were bigger issues to solve in the layout initially, and the voltages were overlooked as something to improve, because the initial circuit worked for what was needed, and 24V was the only voltag...

GGibb.1 · 2021-05-19

Thank you! Unfortunately I am not actually using the TO220 package any more. A previous circuit iteration used it, and the heat was not noticed to be a problem. Then the board was redesigned to be surface mount. Now we are having issues. I found...

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Viper06 Buck mode converter, and AN4260

Do I need more than one button on my device?

high input voltage into an L7805 - would like to add a resistor to drop Vin, but not sure how to calculate

BLUENRG-M2SA: I have been tasked with a prelim investigation into a new product - battery powered BT device. Will communicate with app on phone to receive data to control LED interval used for alarms

Re: Viper06 Buck mode converter, and AN4260

Re: Do I need more than one button on my device?

Re: high input voltage into an L7805 - would like to add a resistor to drop Vin, but not sure how to calculate

Re: high input voltage into an L7805 - would like to add a resistor to drop Vin, but not sure how to calculate

Re: high input voltage into an L7805 - would like to add a resistor to drop Vin, but not sure how to calculate