Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
I'll try to gather what I know and want.
Output is +3,3V Push Pull, impedance maybe about 50 Ohm
from this output I would need to convert to an IC input with 5V logic as a 74HC clock signal with a frequency of 80MHz.
ideally, if it could be done by discrete switching with a transistor, i.e. no...
Sorry, I missed some of the questions.
I have an output in 3.3V logic and an input in 5V logic, frequency 80 MHz.
These are the pins of two different ICs. It is not possible to connect them directly because of the logic level 1 on the 5V side. Capacity. I don't know, if I say 10pF I probably...
A logic level converter based on a MOSFET transistor has probably been seen by all of us.
Professional integrated converters are probably based on this principle as well.
For slow events with a frequency of kHz and units of MHz OK.
Transistors like the BS170 have a Turn−On Time of 10ns and a...
I've been using a Voltcraft DPS 4005 power supply for many years and all this time I've been annoyed by the poor LCD visibility.
Today the cup overflowed and I disassembled the miracle of German engineers, which is produced and designed by Chinese comrades.
To begin with, if you look at the LCD...
OK I thought about the problem a bit.
I have an MCU, it only has a PWM output. From a hw point of view, I will add a Triac and an optotriac with an integrated ZCD and for control use Zerocrossover control.
I will use 1 second as the base time frame.
There are 100 half-periods in one second.
For...
At the beginning, I will describe what I am talking about.
I need, among other things, to control the performance of two 230V heaters (700W each).
Power control in the range of 0-100 percent.
Power control from MCU (somewhat STM32).
It is not a serial production (approx. 3 pieces), requirements...
I have a power supply for USB, wattage 10 to 20W, 4x USB Port. During a storm, the control IC with an integrated MOSFET burned down.
IC is in DIP8, which is missing pin 7
The IC is wired like this
If I understand correctly
1 Current for starting the circuit
2. Power supply during work from the...
When must performance be limited?
When the power is significantly higher than the losses at the desired max temperature and the curve would not tend to flatten?
This will not be my case, the furnace is built with insulation material +1600C, heat loss through penetration at 1000 C is approx. 1.5...
I have an electric oven,I used CMSIS-PID for the MCU-
I am trying to figure out how to tune the PID-
I want to try first.
Ziegler–Nichols Tuning Method S-shaped Step Input Response Curve-
You are not sure about one little thing-
How do I get the S curve?
Just turn on the furnace without...
Thank you all for the responses.
>Using the I2C bus.
It also occurred to me though, even though I2C is a bus primarily for PCB communication.
I was thinking about the MCP9800. They have a fixed address, Microchip makes versions A0 to A7, but realistically you won't get more than A0 and A5. The...
I need to heat and measure the temperature of several components within one device.
Measured temperature up to 90C, required resolution 0.1C, required size so that even with the supply cable it fits into the cable eye,cable length up to 50 cm. A relatively cheap and robust solution allowing the...
Thank you for the information.
So, two separate branches.
The important thing, the wax is under constant pressure and the electromagnetic valve switches on the wax (liquid). The valve must operate at a temperature of 65-85C
I am thinking about how to implement such a valve.
Maybe like a spray...
Does anyone have experience or don't know how exactly something like this works?
It's actually very simple. If you have turned on vacuuming and automatic mod.
When we press the mold to the nozzle, air is sucked out of the mold for a set time, for example 3s, then again after a set time, molten...
A beautiful example of the Chinese ability to extract the maximum from the minimum.
Without thinking about it, I was struck by the possibility of parallel ordering.
I would expect the necessity of some given ratio between the inductance of the heating coil and the parallel capacitor bank.
I see...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
