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I use NAND so it won't work when both signals are high
and I tied the EN with PWM to avoid extra logic
also, I think AND gate inherently has no Schmitt trigger
do you have any suggestion on which logic scheme might work to bind the 3 control pins to 4 control gate
DC motor operation would be simple, with no high switching, the only consideration is using the direction instead of enabling/disabling the PWM signal on each half-bridge
As I mentioned, regarding datasheets all IC gate drivers come in two groups, one has Enable/PWM and another High-Low signal...
I have more than 12 different gate drivers and a dozen N-MOS and trying to find the general schematic for making a low-switching 12-36 DC motor that can control via Arduino MCU which is isolated via optocouplers,
I don't know if R20, C14, C15 are necessary or not, just follow some datasheet...
I used the datasheet drawing to make an h-bridge and just tried to change the pin configuration, so you said the half-bridge driver is only good for high-switching applications and not for static operation ?!!!!
Hi,
I intend to use a pair of half-bridge drivers to make a full bridge driver for controlling my DC motors with 3 standard input pins of Enable, Direction, and Arduino PWM, my first option was to use the logic gates and bjt Mosfet driver to run the full bridge, similar to following design...
@KlausST Sorry to waste anyone's time here, but I wasn't looking for engineering service here as I've noticed in many other engineering forums, people are very cautious (or offended ) when somebody asks them for detailed calculation
I'm a practical engineer and always have tried to get the...
@KlausST , yes, you are right I didn't give the all part information and conditions, however, I went through a bunch of available schematics for known PLCs as well as simple simulations like this site,
my purpose is to design a reasonably robust reliable signal input for available parts for my...
thanks Brian
the purpose of this design is to protect the input signal in harsh industrial environments, and I assumed the TVS is the first layer and the Zener Diode is the last layer of protection and green LED could be useful to know if the input port destroys
do you believe the following...
I design isolated DC input for industrial applications that can possibly work from 12 to 24 V.
I add a 5.1 V Zener for over-voltage protection, a capacitor for filtering, and TVS for surge production.
My questions are:
In an overvoltage situation, will any LED light turn on?
Is this the...
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