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Recent content by electrochamp

  1. E

    [moved] Will this bootstrapping capacitor work?

    Ok i will try to upload my idea thanks
  2. E

    [moved] Will this bootstrapping capacitor work?

    thanks Klaus; if a seprate power supply is used for bridge i-e +300 to high side drain and ground to low side mosfet source and this ground of power supply(Bridge) is not common with driver circuit, in this case will ground get isolated? for the same case isolated ground will this circuit work...
  3. E

    [moved] Will this bootstrapping capacitor work?

    Hello In the figure attached below if h Bridge is connected to isolated power supply of 300 volts will the high side mosfet work or not? (as voltage at gate must be around 10volts greater than the drain voltage and in isolated ground our bridge ground will be different so how boot strapping...
  4. E

    [moved] Grid tie inverter problem

    Actually when i connected drain of inverter from autotransformer followed by rectifier my circuit blown off:bang:...... is this because of common ground between control circuit and inverter(autotransformer).??
  5. E

    [moved] Grid tie inverter problem

    Thanks Treez, actually i am trying to control power by phase angle and i need to do continuous sampling. yes i will use dc supply greater than the peak value of mains but problem is that how to isolate their grounds? dc supply is connected to the same mains. and if i use battery and then boost...
  6. E

    [moved] Grid tie inverter problem

    Thanks schmitt trigger, if i didnt provide isolation between ac mains and control circuitry i-e i am just using Vdr then what will be the Possible problem? I did not understand the purpose of isolation what will be the problems if they are not isolated?
  7. E

    [moved] Grid tie inverter problem

    Hello, i am working on a project of grid tie inverter and there are some problem related to that, 1) For sampling mains sine wave i am using voltage divider from 220V to 2.5vpp is this a good approach or transformer and then vdr will be mor handsome approach? Plz clarify the drawback in first...
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