- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄385566 > MC1H3 (Microchip Technology Inc.) High Voltage Power Module Users Guide PDF資料下載
參數(shù)資料
| 型號： | MC1H3 |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | High Voltage Power Module Users Guide |
| 中文描述： | 高壓電源模塊用戶指南 |
| 文件頁數(shù)： | 19/60頁 |
| 文件大?。?/td> | 1522K |
| 代理商： | MC1H3 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁當(dāng)前第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁
2003 Microchip Technology Inc.
DS70096A-page 13
Set Up and Operation
1.2.7
FAULT Protection
The following FAULT protection is provided which automatically disables all firing
independent of the inputs on the 37-pin connector.
TABLE 1-4:
FAULT PROTECTION
To reset a FAULT, assert the ISO_RESET line of the 37-pin connector. This should be
done for a minimum time of 2
μ
s. The RESET must be carried out in coordination with
the SPI handling routine of the dsPIC device to ensure correct synchronization of the
serial interface providing the isolated voltage feedback (see
Section 1.4.7.2 “Isolated
Voltage Feedback”
).
1.2.8
Operation at Low Output Frequencies and Stall
As far as the inverter power devices are concerned, it is the instantaneous
temperatures of their junctions that matter for correct operation and reliability. As the
current that flows through a particular power device changes through an electrical
cycle so does the loss. At high fundamental output frequencies (e.g., 60 Hz), the
devices have sufficient thermal “mass” to smooth out much of the effect of the
variation in loss, so that the peak device junction is due to the (much lower) average
dissipation. As the output frequency reduces, the peak device junction temperature
reaches the worst case loss.
It is common practice to include a stall detection algorithm in software. This is
designed to not only protect the power components, but also the motor from thermal
overload. As it is impractical to include stall detection in hardware that maintains
flexibility for development but still provides 100% protection, it is assumed that the
software in the dsPIC device provides this feature. The algorithm should monitor rotor
speed and cause a system trip if the rotor speed is at or near zero for greater than an
appropriate length of time while the inverter is energized. A stall trip time of 2 seconds
is suggested.
Fault Source
Nominal Trip
Level
LED Indicator
R, Y, B Bottom Switch Current
±4.8A*
Shunt Overcurrent
DC Bus Current
±4.8A*
DC Bus Voltage
410V
Over Voltage
Brake Switch Current
+4.9A
Brake Overcurrent
Heat sink Over Temperature
65°C (150F)
Over Temperature
Isolated DC Input Current Feedback
+8.9A
Hall Overcurrent
R, Y Isolated Phase Current Feedback
±4.4A
* If a large rate of change of current occurs due to the use of a load with low inductance, the
voltage across the self-inductance of the shunts will cause trips to occur at a lower level
than that stated.
Note:
If SHUNT OVERCURRENT trips are occurring, but not HALL
OVERCURRENT trips, this may indicate that an inverter Shoot Through is
occurring. The user should immediately remove AC power from the system
and check that the correct 2
μ
s dead time exists on the inverter firing signals
using an oscilloscope.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MC33023DWG | High Speed Single−Ended PWM Controller |
| MC33023DWR2 | High Speed Single−Ended PWM Controller |
| MC33023DWR2G | High Speed Single−Ended PWM Controller |
| MC33025DWG | High Speed Double−Ended PWM Controller |
| MC33025DWR2 | High Speed Double−Ended PWM Controller |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC1JJN0600 | 功能描述:環(huán)形公制連接器 M40 C Straight 6 Position Extension RoHS:否 制造商:3M Electronic Solutions Division 產(chǎn)品類型:Connectors 系列:M12 外殼類型:Plug 觸點數(shù)量:4 安裝風(fēng)格:Cable 端接類型:Solder Cup 電流額定值:4 A |
| MC1JJN0800 | 功能描述:環(huán)形公制連接器 M40 C Straight Extension 8 Pos. RoHS:否 制造商:3M Electronic Solutions Division 產(chǎn)品類型:Connectors 系列:M12 外殼類型:Plug 觸點數(shù)量:4 安裝風(fēng)格:Cable 端接類型:Solder Cup 電流額定值:4 A |
| MC1LKN0600 | 功能描述:環(huán)形公制連接器 M40 C Straight Recpt 6 Position RoHS:否 制造商:3M Electronic Solutions Division 產(chǎn)品類型:Connectors 系列:M12 外殼類型:Plug 觸點數(shù)量:4 安裝風(fēng)格:Cable 端接類型:Solder Cup 電流額定值:4 A |
| MC1LKN0800 | 功能描述:環(huán)形公制連接器 M40 C Straight Recpt 8 Position RoHS:否 制造商:3M Electronic Solutions Division 產(chǎn)品類型:Connectors 系列:M12 外殼類型:Plug 觸點數(shù)量:4 安裝風(fēng)格:Cable 端接類型:Solder Cup 電流額定值:4 A |
| MC1M | 制造商:G & J HALL 功能描述:STEP DRILL 4-12MM 1MM STEP 制造商:G & J HALL 功能描述:STEP DRILL, 4-12MM, 1MM STEP 制造商:G & J HALL 功能描述:STEP DRILL, 4-12MM, 1MM STEP; Drill Bit Size Metric:4mm; Overall Length:75.5mm; SVHC:No SVHC (19-Dec-2012); Drill Bit Type:Step; Material:Steel; Material Thickness Max:5mm; Range:4mm - 12mm; Range:4mm - 12mm; Shank Dia:6mm; S ;RoHS Compliant: NA |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。