Hello there,
I want to make a circuit that calculates the slew rate.
How do I follow a path?
good work.
I want to make a circuit that calculates the slew rate.
How do I follow a path?
good work.
Thanks for your responseWelcome to AAC
I use something called a O'Scope.
You have to explain this.slew rate rising time circuit.
I want to make a circuit to calculate the slew rate rising time. This my project.You have to explain this.
You're going to need a very fast micro to measure smaller times. The method I outlined in hardware should work up into the 100's of MHz. with readily available components.Thank you for your answers.
Of course I know microcontroller programming.
I install ADC and measure voltage values from 10% to 90%.
Start timer when adc = Vpp * 0.1
Timer stops when adc = Vpp * 0.9
Thus, rise time is found.
Rise time is usually 5us.
Can I measure 1us with a timer?
That is irrelevant to the discussion. A 10 kHz. square wave can have a rise time of 2 nanoseconds without any trouble at all. You are the one that said you wanted to measure 1 usec. or so.The signal will not be high frequency.
signal:
Square wave and 5v.
I have no idea how many seconds it will be. I'm just guessing. If nanoseconds is the microcontroller can not do that.That is irrelevant to the discussion. A 10 kHz. square wave can have a rise time of 2 nanoseconds without any trouble at all. You are the one that said you wanted to measure 1 usec. or so.
If you have a microcontroller than can count nanoseconds between two edges then you can use it.I have no idea how many seconds it will be. I'm just guessing. If nanoseconds is the microcontroller can not do that.
To measure rise time directly, you'll need components that are more than 100x faster than the parts you are measuring. Otherwise, you'll need an advanced techniques...I have no idea how many seconds it will be. I'm just guessing. If nanoseconds is the microcontroller can not do that.
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