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Thank you for your response.
For information, I discovered the 3W rule to avoid crosstalk between parallel traces routed on the same layer: keep a minimum spacing between traces centers of 3xW (W: widt and space of the trace). 3W rule reduces the crosstalk by 70% (10W rule reduces the crosstalk...
Thank you FvM for your response.
I agree, standard PCB makers can now even go down to 3.5mil for trace width and spacing.
10cm can be considered as a short length for parallel running traces? My PCB is narrow: 10cm length as a band of parallel running traces x 1cm width.
I also want to get...
Hello,
I have a tiny PCB to route with very constrained space. Signals to be routed are: ADC, PWM, SPI, UART, I2C.
What is suggested, for each of these signals, the:
-minimal track width?
-minimal space within the signal group?
-minimal space to other signal group?
Thank you,
Regards,
Michel
I applied your advices: add resistor to the led, modify diode model, add probes. See the picture: before pushing the switch (left) and after (right). nothing is changing.
Hello,
I have created a Proteus model implementing a Press-ON-Press-OFF push button according to the first schematics of this page:
http://www.mosaic-industries.com/embedded-systems/microcontroller-projects/electronic-circuits/push-button-switch-turn-on/microcontroller-latching-on-off
The...
Hello
Thank you for your feedbacks.
@FvM : thank you for your tips. I'll gather these info from the list of sensors I plan to use, and I brb to you.
@KlausST : thank you for your response and explanations
"not known in advance" (or if you prefer "most versatile") are my own requirements.
If it...
Hello,
I need to connect an analog sensor to a MCU SAR ADC input. The tricky point is I want to design a generic circuit that can adapt to:
-various types of analog sensor, not known in advance
-various type of MCU (not known in advance) with 12bits resolution SAR SAR ADC
To cover the more...
thank you barry. I was expecting this kind of response :-(
GPIO are of classical protocols: I2C, I2S, UART, SPI but also ADC, PWM and classical GPIO (LOW/HIGH)
Does it helps?
1638402853
thank you Klaus for your response.
What are the advantages of double diodes, one to GND, the other to VCC...
Hello,
I want to minimize the number of ESD diode protection to place on my circuit.
The circuit is a kind of bus of N GPIO lines shared by P connectors each with N pins (one per GPIO). See the figure 1. At the level of each connector, I would then place N ESD diodes (like in figure 2). So...
Thank you Klaus, Thank you Dana
My conclusion is that it is very tricky and uncertain to do such a thing.
I'll try to do it in a different way
thank you again
Hello,
I want to use the following power management system that has 4 synchronous Buck DC-DC converters: http://www.x-powers.com/en.php/Info/product_detail/article_id/61
Three of the 4 converters can convert to 3.3V with DC-DC1:3.3V/1A, DC-DC3:3.3V/1.2A, DC-DC4/3.3V/1.2A
Can we combine the...
Thank you Klaus,
I think this the 74HC221 would work: https://assets.nexperia.com/documents/data-sheet/74HCT221.pdf
It operates at 2-6V: can be powered from the big battery (1 cell at 3.7V)
Pulse duration: according to the datasheet, it is T=0.7RC at VCC=4.5V. So (for exemple) it works with...
Thank you Klaus,
The shown path is useful to only switch ON the BMS.
=> I agree. The BMS can be switched off by the MCU
I think you need an additional circuit to switch OFF the BMS. This should be controlled by the MCU. I see no problem to combine both.
=>ok
What if the RTC_Int already is LOW...
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