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Troubleshooting a High Power Relay H Bridge

talha_tahir

Mar 26, 2022
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Mar 26, 2022
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I have created a schematic for a high power dual h bridge utilizing relays and IRF540 Mosfet but i cant seem to calculate the values for the gate resistor to the mosfet plus i would appreciate if anyone could point out any mistakes i made in the design. The schematic is attached below in the zip. The design is for two motors which needs to be PWM'ed , with operating current of about 1.5A No load and Stall current of 14.5 A. This is one side of the h bridge for the full schematic open the zip.
final h bridge.PNG
 

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  • final h bridge .zip
    232.8 KB · Views: 3
Last edited:

bertus

Moderator
Nov 8, 2019
2,640
Joined
Nov 8, 2019
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2,640
Hello,

I have reduced you 60 MB image to an image off about 300 kB:
final h bridge reduced.jpg
There is a lot of white space and the lines are crossing and bending a lot.

Bertus
 
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