Search found 4 matches

by walkingintheair
Mon Apr 23, 2018 2:24 am
Forum: PIC Microcontrollers - Software and Hardware
Topic: Trying to implement the WS2811 driver--code debugging
Replies: 1
Views: 468

Trying to implement the WS2811 driver--code debugging

I'm attempting to implement the WS2811 driver described in app note AN1606 on a PIC16F18325. The app note is written for a PIC16F1509 so I can't just copy and paste the code, and it's nothing but magic numbers anyway so I prefer to re-write it. This implementation makes use of the CLC, PWM, and SPI ...
by walkingintheair
Sun Apr 22, 2018 11:36 pm
Forum: PCB Design Questions
Topic: Running contrary to the advertised feature that "Reverse leakage current less than 10uA"??
Replies: 3
Views: 635

Re: Running contrary to the advertised feature that "Reverse leakage current less than 10uA"??

Thanks for the suggestion: Here are the results: http://www.kynix.com/BlogImage/PB137.jpg Question is: why would ST put out such a poorly specified product? Even if the input pin is "floating", I have seen the device go into the reverse-current induced thermal runaway. If the input pin comes from a ...
by walkingintheair
Thu Apr 19, 2018 2:55 am
Forum: PCB Design Questions
Topic: Running contrary to the advertised feature that "Reverse leakage current less than 10uA"??
Replies: 3
Views: 635

Running contrary to the advertised feature that "Reverse leakage current less than 10uA"??

I am using a PB137 battery-charger chip as a float-charger for a 12V 4.5AH Sealed Lead Acid Battery. I started by using the circuit shown on page 5 (Section 3 Application) of the PB137 Data Sheet (see: http://www.kynix.com/uploadfiles/pdf65976/PB137ACV.pdf ), where it holds the float voltage at 13.7...
by walkingintheair
Mon Feb 05, 2018 11:27 pm
Forum: General Chit Chat
Topic: Which microcontroller is suitable to Impedance measurement
Replies: 0
Views: 2212

Which microcontroller is suitable to Impedance measurement

I have a Launchxl-F28377S and i have read an article about Microcontroller Applications and Its Principle http://www.apogeeweb.net/article/58.html , but it seems not suitable to my application and I wonder which microcontroller in low-power family is suitable to this application? It is not easier to...