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In the circuit i have another 5V source... do you think is better to use it ? but for that i will need to include more mosfets in order to pass from the controll signal of 3.3V to 5V.. and i will have the same problem controling a gate with 3.3V... what do you recommend me to do ?
Thanks Klauss!
Hi Klauss. By now it is working.
RQ5L035GNTCL VthGS= 1.3V -> teh conditions in my circuit will be 3.3V
RQ5E050ATTCL VthGS= -1:-2.5V -> the conditions in my circuit will be 0V or -15V
I will take a look at the Dcdc stability.
About the gate driving. I am using an esp32 directly to control the I1 gates... And then the inversor you see in the schematic to control the pulse_inv gates (3.3ESP comes from a 2A lado)
What do you think ?
Thank you Klaus. I am learning a lot from you, thanks for that.
I clean a little bit the design as you recommend me to do:
This is a dc application, switch once per hour....
Some last questions:
* What do you recommend me to control the gate drive current of low side, high side and the...
Hi klaus. Thanks for your fast reply.
I1 and pulse_inv are 3.3 constant signals.
If i eliminate q4 and q6 i have an 15V on/off circuit that works correctly ( I1=0, current through the load, I1=3.3V no current)... the problem is adding q3 and q5....
I also simulated this circuit and...
Hi all. I have a problem.
I am using this circuit to invert the current sense just with one command line (I1).
If i use this circuit as it is, somehow i am seeing a short circuit somewhere. If i reduce the 15V to 5V the circuit works correctly.
Could anyone help me please ?
Thanks a lot!!
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