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Got 200 pces of 40t60 igbt ...but i was cheated....the chinese webite shows 40t60d...the d means it has diode...but i got 200 pces of diodeless igbt...i use them in wlding machine repair....can i install external 1200v 30a fast shotcky ...will it work....will it need heatsinking
Thanks all
So its experiential process ..is there any category for the types of motor that can and the ones that can not work on triac
Link or book that shows
Can some motors that are voltage dependant and can use triac work for toy electric car for children ...
Hello everyone
What kind of ac motors that can be driven with triac circuit and what kind of ac motors that cant be driven with triacs
For the ones that can be driven
Can we control the speed while the motor is loaded defining certain rpm...or just this method for unloaded ac motors...
Hi I got an order for40n60igbt from China but I felt I got cheated
The part I ordered have d letter so its 40n60d the seller send 40n60
Can I add diode. Across emitter collector. Also what is diode current and amper used 3 amp 600/v I think is good. ....well if more amps needed I...
hello
i believe that the kind of books that shows you circuits for hoobies like fm transmitter,power supplies .charge circuit, led chassing project,daylight controller
and show you how the circuit work in easy language
such as when q1 is off there willl...
BUT in almost all text book it is always assumed that diode only drops its usuall forward diode drop voltage and "toss" the left voltage on the resistor ? so it is not like that even for the diode and the diode is supossed to accept diffrenet voltage across...
1652488136
but according to what teachers thought me the vbe always take 0.6 and toss what ever voltage left over the other parts of the circuits like
resistors we always think of diodes and vbe junctions this way ?? so i have not forced any thing over 0.6...
continuing with the emitter follower complications why do you think vbe is never 0.6 it is always 1.5 vdc or more in the shown circuit
the circuit works fine and as expected
this circuit is a study of how follower used as current source
since the base circuit...
first thanks dana for your effort you did a fantastic job with the simulations
second if am not mistaken it is like the following
since the emitter voltage is held at -5 as resualt of voltage divider once the vbe reachs to -5vdc there is net 0 vdc...
so the correct answer is no asnwer???
1651795940
can you explain "intuitvly" why should the transistor shuted at -5 you indicated the load is somewhat severe that is why the transistor is shuted
lets assume that we are "loading the transistor too much "...
in this text book "the art of electronics" for horowitz the writer said that the transistor will be shuted down
at -5 vdc the output will be cutted like shown
i cant see why the output will be cut
since at -5vdc the emitter base junction will...
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