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  • mosfet a go go

    Anyone got a list of best high voltage mosfets for use in pi's etc

  • #2
    is 100-120V (bara, surf, mpp) 'high voltage'?

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    • #3
      There is BJT transistors are used for power supply MJE18008 the good thing they are faster then FET i didn't try them before

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      • #4
        22 threads on mosfet. included this. still no way http://www.geotech1.com/forums/searc...earchid=476624

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        • #5
          sunlight http://www.geotech1.com/forums/showt...-in-this-forum

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          • #6

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            • #7
              Originally posted by chafik View Post
              There is BJT transistors are used for power supply MJE18008 the good thing they are faster then FET i didn't try them before
              What are you basing your statement on ?, a quick check of the data sheet says the 18088 turns off in micro seconds, were a irf740 turns off in nano seconds

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              • #8
                Read 22 threads on Tx mosfet drivers for better understanding of the topologies involved. It is not just about fast turn off time. The delays from whichever driver circuit used only are a small part. The essential elements of FIELD switch off time are coil inductance, the mosfet breakdown voltage, coil current and coil capacitance. Also the recovery time of this first RX amp.

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                • #9
                  https://electronics.stackexchange.co...npn-transistor
                  This is a good topic to read I think we are not allowed to post external link here

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                  • #10
                    irf740 looks to be best allrounder i really like them but there are newer mosfets around now!

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                    • #11
                      Originally posted by kt315 View Post
                      is 100-120V (bara, surf, mpp) 'high voltage'?
                      answer.

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                      • #12
                        Originally posted by qute1 View Post
                        irf740 looks to be best allrounder i really like them but there are newer mosfets around now!
                        what give you 'newer mosfets around'? the depth? the discrimination possibilities? a low cost? oooh yes! sunlight! forgot!

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                        • #13

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