AbhimanyuSingh Posted November 10, 2010 Report Share Posted November 10, 2010 This gate driver is for a buck converter. The input to this IC is a nice pulse of frequency 100 KHz of variable duty ratio. I have checked the circuit many times and ensured that no shorting is there. But the output remains 0 volts. The output HO is hanging as well as the output VO is hanging. For the sake of step by step progress, I have left them hanging. Is there something I have missed or something I dont know that I should have done. Quote Link to comment Share on other sites More sharing options...
indulis Posted November 10, 2010 Report Share Posted November 10, 2010 How about applying the converters input voltage to the Vcc pin of the driver. Quote Link to comment Share on other sites More sharing options...
AbhimanyuSingh Posted November 10, 2010 Author Report Share Posted November 10, 2010 Sorry, I wrote VO instead of VS. Its pin VS and not VO. Quote Link to comment Share on other sites More sharing options...
Guest Enforcer83 Posted November 10, 2010 Report Share Posted November 10, 2010 looked at the datasheet and assuming you are powering the chip (VCC) with a voltage between 10 and 20V and giving it a logic signal in the same range, there is no reason you should be having a problem. The hookup you have given is as I have seen in the application circuit. Quote Link to comment Share on other sites More sharing options...
indulis Posted November 11, 2010 Report Share Posted November 11, 2010 Your schematic shows that the Vcc pin is only connected to a diode anode, the Vcc pin also needs to be connected to a voltage (i.e. input voltage to the buck converter). If you don't connect Vcc to a voltage of course your not going to have a output! Quote Link to comment Share on other sites More sharing options...
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