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Hi,
I can simulate following circuit in LTSpice and I can also generate FFT for current.
The circuit has a square wave generator with 5V amplitude, 1ns rise-time, 1ns fall-time, 4ns on time, 10ns period (100MHz).
I want to calculate effective value of currents at 100MHz, 300MHz, 500MHz ...
When...
Hi,
I want to design a traffic light controller with blinking green function.
There are 2 LED groups, each of which consists of 3 LEDs (red, orange, green) for cars, 2 LEDs (red, green) for pedestrians. Totally, there are 10 LEDs. There are 2 buttons as well.
The first button is night-mode...
Hi,
I need a secure memory to store key. When I search for it in the microchip website, I find a product portfolio CyptographicMemory.
https://www.microchip.com/en-us/products/security-ics/mature-products
But in all products it says "Not Recommended for new designs". For example...
I wonder how the whole security protocols work.
For example Microchip has a chip ATECC608B, that is used for AES security.
But I don't know how the whole chain works.
There are private key and public key. Who (where) generates those keys?
How is the public key exchanged with others? Where is...
Hi,
I have an LiIon battary pack, charger module and a small solar panel. I am charging it with solar energy.
Output of the charger module is directly connected to solar panel (+) and battery (+), that means, there is no constant voltage at output. It varies from 2.5V to 4.2V.
I want to...
Hi,
I want to use ATX power supply for a project and I want to connect it to a PCB. I will design the PCB but I can not find the corresponding ATX connector name for PCB.
If I serach it, all I find is only the ATX connector at the power supply cable. I need connector on PCB side. Is it male or...
I have an USB volatage meter and connected USB cable to this measurement device.
Like this one:
https://www.aliexpress.com/item/32856671635.html?spm=a2g0s.9042311.0.0.27424c4d5iBYyL
I charged the battery from a charger circuit externaly and put it in the tablet, still same.
I think motherboard...
Hi,
I have a Samsung GT-P5210 10.1 inch Tablet and it doesn't work. It doesn't charge and it doesn't switch on.
I tried following:
Reset it by pressing power and volum up OR down button simultaneously, it didn't show anything.
Leave it connected to charger more than one day. It didn't show...
Yes, it is true. USB C can provide up to 100W power after negotiation. But there is a dedicated power negotiation channel and protocol.
Not exactly. I want to measure voltage and current and display them on a LCD-Screen, therefore I need a microcontroller. It would be a nice to have property...
I tried to explain my requirement but if it is not clear, again: Most of the USB C PD ICs didn't have any microcontroller to be programmend in it, nor any power measurement.
Hi,
I am searching for an IC for USB C power delivery.
Is there any USB PD controller chip with microcontroller inside with I²C or SPI ports?
Another question. Is there any USB PD controller with power measurements? For example V, I and/or power measurement and available on I²C or SPI ports?
Thanks.
Hi,
I have a battery from Samsung tablet. There are two identical 3.8V Li-ion battery. I measured voltages, both are 2.88V. Is it bad?
Can I make a charging circuit only for one of them?
Type T4500E, 6800 mAh. I think only one battery has a capacity of 3400 mAh because they are connected...
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