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參數資料
| 型號： | IRPT4052 |
| 文件頁數： | 2/12頁 |
| 文件大小： | 174K |
| 代理商： | IRPT4052 |
page 2
IRPT 4052
System Description
The IRPT4052C
power conversion function for a 7.5hp (5.5kW) variable voltage,
variable frequency, AC motor controller. The
combines a power assembly IRPT4052A with a Driver-
Plus
Board IRPT4052D. Figure 1 shows the block diagram of the
within an AC motor control system.
The power assembly contains a 3-phase input bridge rectifier,
3-phase IGBT inverter and a thermistor mounted on an Insulated
Metal Substrate (IMS) power board. It is designed for easy
mounting to a heat sink.
The Driver-Plus Board contains DC link capacitors, capacitor
pre-charge function, isolated IGBT gate drive circuits, shutdown
protection, isolated trip and current feedback signals, and local
power supply. It interfaces to the power assembly via soldered
connector pins. Terminal blocks are provided on the Driver-
Plus
Board for all end-user external connections to the
.
Output power is Pulse-Width Modulated (PWM), 3-phase,
variable-frequency, variable voltage controlled by externally
generated user provided PWM controller for inverter IGBT
switching. The PWM input signals and feedback signals are opti-
cally isolated from the power circuit.
The IRPT4052C offers several benefits to the drive manufac-
turer as listed below:
It eliminates component selection, design layout, intercon-
nection, gate drive, local power supply, thermal sensing,
current sensing, and protection.
It provides committed power semiconductor losses and
junction temperatures.
Gate drive and protection circuits are designed to closely
match the operating characteristics of the power semicon-
ductors. This allows power losses to be minimized and
power rating to be maximized to a greater extent than is
possible by designing with individual components.
Optimized layout for performance and efficiency is pro-
vided.
Low inductance system reduces noise and snubber require-
ments.
[
specifications and ratings are given for
system input and output voltage and current, power losses
and heat sink requirements over a range of operating con-
ditions.
system ratings are verified by IR
in final testing.]
provides the complete
Power Assembly
The IRPT4052A power assembly consists of input rectifiers,
NTC thermistor, output inverter and connectors mounted on an
Insulated Metal Substrate (IMS) substrate. The input side em-
ploys surface mount 1600V rated SMD-220 rectifier diodes and
the inverter section employs surface mount SMD-10, 1200V
IGBT Co-pack switches. The NTC thermistor mounted near the
inverter provides temperature sensing capability. The lead spac-
ing on the power assembly meets UL840 pollution level 2
requirements.
The power circuit and layout are carefully designed to mini-
mize inductance in the power path, to reduce noise during
inverter operation and to improve the inverter efficiency. The
power level interfaces to the Driver-
Plus
Board through solder
pins, minimizing assembly and alignment. The power assembly
is designed to be mounted to a heat sink with five screw mount
positions, one in each corner and a fifth near the center, in order
to insure good thermal contact between the IMS and the heat
sink.
The IRPT4052D Driver-PlusBoard
The Driver-
Plus
Board, shown in figure 3, is the interface be-
tween the controller and the power stage. It contains the IGBT
gate drivers, sensing and protection circuitry, feedback and local
power supply. It also houses the DC link capacitors, relay and
relay control circuit used for implementing the capacitor pre-
charge function. Figure 4 provides detailed functional block
diagrams of the IRPT4052D.
The
gate drive circuits
deliver on/off gate drive signals to the
IGBTs’ gates, corresponding with input PWM control signals
IN1 through IN6. The PWM gate
normally allows the input
PWM control signal to pass to the input opto-isolators of the
gate drive circuits. The conduction periods of the inverter
switches essentially mimic those demanded by the PWM input
signals.
Figure 2. IRPT4052A Power Assembly
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| IRPT4052 | Integrated Power Stage for 5.5kW Motor Drives(5.5kW 馬達驅動器的集成功率單元) |
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相關代理商/技術參數 |
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| IRPT5051 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| IRPT5051A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| IRPT5051C | 制造商:IRF 制造商全稱:International Rectifier 功能描述:Integrated Power Stage for 15 hp Motor Drives |
| IRPT5051D | 制造商:IRF 制造商全稱:International Rectifier 功能描述:Integrated Power Stage for 15 hp Motor Drives |
| IRPT5051E | 制造商:IRF 制造商全稱:International Rectifier 功能描述:Integrated Power Stage for 15 hp Motor Drives |
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