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Darlington needs small base current because of the large beta of it?
if i want the transistor to be in saturate i need:
beta*Ib>Ic
so if beta of the darlington is higher Ib is smaller, Am I right?
In conclusion, darlington is better than regular transistor in switching high-current because of the small base current that needed to saturate the transistor?
But how it connected to switching? in h-bridge i don't need the advantage of large amplify.
i assume that the answer is in your last line but i didn't understand what "overdive the base" means.
I have some ic which called sn754410
datasheet: https://www.ti.com/lit/ds/symlink/sn754410.pdf
This ic have two h-bridges with darlington transistors.
My question is why there is a need in darlington transistors to create these h-bridges? there is no option to use regular transistors? maybe...
Re: Darlington transistor and Darlington pair
I've looked in Google of course..
But if the darlington transistor is use for switching why to use darlington and not a regular transistor?
I have some ic (sn754410) which have darlington transistors that use for switching h-bridge, what is their...
Re: noises in pulse sn754410 driver
There is no any actual problem the motor works perfect..i only want to make it more pleasing.
Why should be a problem in the input signal? the input signal is '1' (5V) or '0' (0V) from Arduino I/O.
The output should be 12V or 0V but there are a lot of noises..
hi, i use the ic sn754410 to operate step motor, everything work well but when i measure the output pulses in oscilloscope there are a lot of noises in the pulse.
example:
Does there is some way to remove all of these noises? maybe with capacitors?
This is the datasheet of the sn754410...
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