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eblc1388 said:Hi,
This seems to be a very useful component for driving the MOSFET when high voltage and full isolation is required.
Does anyone know the source or part number of similar component in U.K.? Would they cost about the same as common optocoupler?
Nigel Goodwin said:Isn't it just a dual opto-coupler?, they are commonly available, as are quad ones.
eblc1388 said:Nigel Goodwin said:Isn't it just a dual opto-coupler?, they are commonly available, as are quad ones.
Not quite. When the input LED lights, a voltage(5-10V) is produced across the output pins that can be use to drive the MOSFET directly.
Styx said:How would the 5V be generated? it cant.
Styx said:These take current to turn on, with te BJT being a current-control device and teh IGBT being a voltage-control device - but it has a gate capacitance that needs to be charge => current (MOSFETS suffer from this as well)
Styx said:THIS has no means of transmitting power, just signal, ie it is an Opto.
LED on one side and photodiodes on the other.
eblc1388 said:Hi,
This seems to be a very useful component for driving the MOSFET when high voltage and full isolation is required.
Does anyone know the source or part number of similar component in U.K.? Would they cost about the same as common optocoupler?
Styx said:Basically I have to blap this IGBT with 11A that decays in 700ns
Styx said:I am not nocking it, deffenently looks interesting and will look into it since opto's have their limitations that I am starting to come up againsts. As to stockers of this?? dunno, ill contact our local IR rep abt these to get some more info
TekNoir said:A search on findchips.com lists nine different suppliers of this line of chips, including a few very large distributors who probably also ship internationally.
Styx said:AS long as the 5V output is enough to turn the FET on and saturate it?
that is the other concern I have with this, otherwise goodgood