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參數(shù)資料
| 型號(hào)： | IRPT1060E |
| 廠商： | International Rectifier |
| 英文描述： | nullIntegrated Power Stage for 1 hp Motor Drives |
| 中文描述： | nullIntegrated 1匹功率級(jí)電機(jī)驅(qū)動(dòng)器 |
| 文件頁數(shù)： | 12/12頁 |
| 文件大?。?/td> | 409K |
| 代理商： | IRPT1060E |
IRPT1060
page 12
I
FB
is DC bus current, 0.045V/A nominal. This pin
must not be
connected
to circuit ground (N) through low impedance. If
filtering of this signal is required, it shoud be done by adding a
high impedance buffer stage between signal and filter.
Heat sink Requirements
Figures 5a and 5b of the IRPT1053 datasheet show the
thermal resistance of the heat sink required for various output
power levels and PWM switching frequencies. Maximum total
losses of the unit are also shown.
This data is based on the following key operating conditions:
The maximum continuous combined losses of the rectifier
and inverter occur at full pulse-width-modulation. These
maximum losses set the maximum continuous operating
temperature of the heat sink.
The maximum combined losses of the rectifier and
inverter at full pulse-width modulation under overload set
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http://www.irf.com/ Data and specifications subject to change without notice. 9/97
the incremental temperature rise of the heat sink during
overload, which is limited to 10
°
C due to Z
thSA
.
The minimum output frequency at which full overload
current is to be delivered sets the peak IGBT junction
temperatures.
At low output frequency IGBT junction temperature tends
to follow the instantaneous fluctuations of the output
current. Thus, peak junction temperature rise increases as
output frequency decreases.
Voltage Rise During Braking
The motor will feed energy back to the DC link during electric
braking, forcing DC bus voltage to rise above the level defined
by input line voltage. Deceleration of the motor must be
controlled by appropriate PWM control to keep the DC bus
voltage within the rated maximum value.
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