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Hi my friend SunnySkyguy
I didnot get the idea very well
Can you explain to me more please?
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Hi my friend Klaus ST
becuase when i turn off the power
the Stored electrical energy in the motor will Discharge across the varistor to the ground
I uesed very big heat sinks for IGBT (GT60N321)
and I uesed MUR6060PT as a free-wheeling diode In parallel the dc motor
the circuit worked well , but when I Turned off the circuit
the IGBT (GT60N321) damaged
could you help me why the IGBT damege?
Hello
I have tried the circuit in The image below
It have worked but I have noticed that there is alot of noise and
I noticed tHE IGBT was Destructive
I need to know what is the wrong and why did this happen to my circuit ?
and how could i solve this problem?
I have tied resistance(1 ohm - 10 watt) in series with motor to divided
The voltage (the main power supply)(265 v dc)
the frequency is 500hz
the Min/Max Duty (30-180)
hello
I have noticed some things
the value of Main power supply is 265 volt and the motor is 180 volt - 2HP
I have chenged R3 TO 10K OHM
the ground in BAT1(12 VOLT) is the same ground in Main power supply (265VDC)?
I have tried this circuit , but I noticed that node (A) heated up a lot and it...
Hi all
I HAVE put snubber circuit for IGBT (C1-R9) C1(100nf-400volt) - R9(25ohm-5watt)
What are the correct values c1- R9 ?
and i have put R8 (100k) as a volt divider to get about 13 volt on the collecter of Q2
and this is The final electrical diagram
Thank you my friends
but ultimeately I' d like to know the intact circuit :lol::lol::lol::lol::lol::lol::lol::lol:
The only mistake is The motor should be in the transistor collector side, not in the emitter.
HI EVERONE
could you help me?
I want to design circuit FOR driving Gate_IGBT (GT60N321)
to control the speed of dc motor (180 volt _ 2 HP)
I want to control the Igbt-Gate by pic microcontroller (pwm_pin)
and this is the circuit but it isnot work
I NOTICED that the16 buttons(inputs) have work well with (74hc165)
but the outputs (the leds) by (74hc595 ) only one shift reg (74hc595 ) has work well
but the another 74hc595 didnot work
only 8 leds have work well
what is the problem?
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