Hello to all members, this is my first post on this forum; I'm working on a H bridge setup to drive the primary coil of a transformer. My setup, 2 signal generators, one putting out a normal and inverted square wave for IN A and IN B inputs and the other a normal square ware for PWM input of a VNH2SP30 H bridge module. This module is fed 12 V on motor input. The problem is that my voltage amplitude on the output of the H bridge is only 5 volts. I took a series of screenshots of my oscilloscope. Previously I used a H bridge based on IR2104 and IRFP460 mosfets , and swap it with the VNH2SP30 module, hoping the issue was with the H bridge, but I get the same problem. When shorting the output leads of the H bridge it only takes 0.1 amps from the power source. Thank you.
Attachments
-
3.5 MB Views: 11
-
225.7 KB Views: 12
-
218.3 KB Views: 10
-
228.2 KB Views: 8
-
214.1 KB Views: 8