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Translation_Bot
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100 likes received

7805739b581dd858db8c72a4cb6b444.png76b30a354f3dd04130d7022fc8df5b2.png a1bdceff7c44432d5a5d5daa782c328.png 55980688180e4b68222a89634d59ecd.png 4182e03739d8e16d7cd59549192813a.png The DC-DC module that supplies power to the driver chip is normal, the IGBT module is F3L200R12W2H3_B11, and the driver chip selected is 1ED020I12-F2 , and the driver chip selected is 1ED020I12-F2 , and the driver chip selected is 1ED020I12-F2 , and the driver inciuit 片. When the upper voltage is 300v, 9 of the 12 driver chips are bad. After replacing the 9 new driver chip, power on, give the duty cycle, a single measurement of G1 and E1 output signal, (1) three of them only output is -8V, replace the regulator diode ( three of them only output is -8V, replace the regulator diode (such work: D7) normally. (2) but some no output, measured the driver chip's left and right side of the circuit found that the OUT output resistor is broken, some resistors shorted. After re-soldering found that the chip began to get hot, the newly soldered resistors began to blacken. (3) There is also an output of about 1-2V output. May I ask the technician what is the reason for the above three situations? Why -8V is the diode bad. And what is the reason for the hot chip? The hot chip driven by the tube is T2/T3, T6/T7. are the middle IGBT, this is not a bad IGBT, because my DC port voltage in 300v, the middle IGBT voltage withstand value is in 450v, T1/T4 in 1200V.

smartconx_target@Q!w2e3r4t5y6u7i8o9p0||/t5/%E9%97%A8%E7%BA%A7%E9%A9%B1%E5%8A%A8%E5%99%A8/The-driver-chip-is-hot-and-still-hot-after-replacement-is-it-caused-by-a-damaged/td-p/740460

1 解決方案
Translation_Bot
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100 likes received

Hello 

It is recommended that please do not submit the same question , please refer to the reply to the other question you asked:

https://community.infineon.com/t5/IGBT/ %E9% A9 %B1% E5 %8A% A8 %E8% 8A %AF% E7 %89% 87 %E5% 8F %91%...

Thanks!

Best regards,

Rachel

smartconx_target@Q!w2e3r4t5y6u7i8o9p0||/t5/%E9%97%A8%E7%BA%A7%E9%A9%B1%E5%8A%A8%E5%99%A8/The-driver-chip-is-hot-and-still-hot-after-replacement-is-it-caused-by-a-damaged/m-p/740995

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Translation_Bot
Community Manager
Community Manager
Community Manager
100 likes received

Hello 

It is recommended that please do not submit the same question , please refer to the reply to the other question you asked:

https://community.infineon.com/t5/IGBT/ %E9% A9 %B1% E5 %8A% A8 %E8% 8A %AF% E7 %89% 87 %E5% 8F %91%...

Thanks!

Best regards,

Rachel

smartconx_target@Q!w2e3r4t5y6u7i8o9p0||/t5/%E9%97%A8%E7%BA%A7%E9%A9%B1%E5%8A%A8%E5%99%A8/The-driver-chip-is-hot-and-still-hot-after-replacement-is-it-caused-by-a-damaged/m-p/740995

0