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| FNA41560 三相马达驱动解决方案 |
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| 文章来源： 更新时间：2014/9/27 10:05:00 |
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Fairchild公司的FNA41560/FNA41560B2是Motion SPM® 45模块,内置了600V/15A三相IGBT以优化栅极驱动和最小化EMI和损耗,具有多种保护如欠压锁住,过流关断,热监视和故障报告.器件满足要UL标准No. E209204 (UL1557),开关频率5kHz,主要用在家用电器和工业控制的马达驱动.本文介绍了FNA41560/FNA41560B2主要特性,框图, 典型应用电路以及FEBSPM3SPM45_M01MTCA Motion SPM3/45H评估板主要特性,电路图,材料清单和PCB元件布局图与PCB走线图.
FNA41560/FNA41560B2 is a Motion SPM® 45 module providing a fully-featured, high performance inverter output stage for AC Induction, BLDC, and PMSM motors.
These modules integrate optimized gate drive of the built-in IGBTs to minimize EMI and losses, while also providing multiple on-module protection features including under-voltage lockouts, over-current shutdown, thermal monitoring, and fault reporting. The built-in, highspeed HVIC requires only a single supply voltage and translates the incoming logic-level gate inputs to the high-voltage, high-current drive signals required to properly drive the module’s robust short-circuit-rated IGBTs.
Separate negative IGBT terminals are available for each phase to support the widest variety of control algorithms.
FNA41560/FNA41560B2主要特性:
• UL Certified No. E209204 (UL1557)
• 600 V - 15 A 3-Phase IGBT Inverter with Integral Gate Drivers and Protection
• Low Thermal Resistance Using Ceramic Substrate
• Low-Loss, Short-Circuit Rated IGBTs
• Built-In Bootstrap Diodes and Dedicated Vs Pins Simplify PCB Layout
• Built-In NTC Thermistor for Temperature Monitoring
• Separate Open-Emitter Pins from Low-Side IGBTs for Three-Phase Current Sensing
• Single-Grounded Power Supply
• Optimized for 5 kHz Switching Frequency
• Isolation Rating: 2000 Vrms / min.
FNA41560/FNA41560B2应用:
• Motion Control - Home Appliance / Industrial Motor
图1. FNA41560/FNA41560B2内部框图
图2. FNA41560/FNA41560B2典型应用电路
FEBSPM3SPM45_M01MTCA Motion SPM3/45H评估板
This motion Smart Power Module (SPM®) evaluation board is designed to evaluate Fairchild Semiconductor’s SPM3V2_V4 and SPM45H SPM families of parts. The motion SPM is installed as the motor power module on the evaluation board to drive a three-phase AC Induction Motor (ACIM), Brushless DC (BLDC) motor, Brushless AC (BLAC) motor, or Permanent-Magnet Synchronous Motor (PMSM). A Switched-Mode Power Supply (SMPS) is integrated into the design, along with the necessary bulk capacitors and microcontroller (MCU) interface circuitry. This allows evaluation of Fairchild’s motion SPM products with a minimum investment of time, expense, and peripheral equipment. As this board is designed for a wide variety of motor types, not all included circuitry is required for all types of motors. Some motor types may require some additional circuitry be added, depending on the control algorithms being implemented.
By default, the FNB41560 (600 V/15 A SPM45H) is installed as the motor power module, as shown in Figure 9. It is possible to replace the provided SPM45H module with a part from the SPM3_V2 family (i.e. FSBB30CH60, 600 V/30 A) per Figure 10 or the SPM3_V4 family (i.e. FSBB30CH60C, 600 V/30 A) per Figure 11. Depending on the power level of the device, some additional discrete component value changes may be required. The most common reason to consider a SPM3V2_V4 device over the SPM45H family is to increase motor power level.
The evaluation board is designed to connect to either AC or DC power sources feeding current to the motor. There are three example test configurations in Section 3. The three-phase motor output terminals (U, V, W) from the SPM should be connected to the motor windings. Three bootstrap power supply circuits are designed into the evaluation board, one per phase. A bootstrap capacitor, charge resistor for charging the capacitor, and the blocking diode for high-voltage isolation make up each bootstrap supply. With SPM45H and SPM3_V4 modules, R50-55 and D5-7 are not required. These extra bootstrap positions are provided for compatibility with SPM3_V2 modules.
The microcontroller (MCU) or motion-controller development board connects to this SPM board via the provided connector. Six low-pass filters are used between the signal input connector and the gate input signal pins of the FNB41560. Short-circuit current protection is provided by a single shunt resistor, op amp, and low-pass filter. Additional circuitry is included to monitor bus voltage, inverter phase current, and module temperature. This evaluation board is designed to support a wide array of test conditions and requirements.
图3. FEBSPM3SPM45_M01MTCA Motion SPM3/45H评估板外形图
评估板主要特性:
AC Line Input Connection
On-Board Bulk Capacitors
Bulk Capacitor Charge Indicator
On-Board High-Voltage SMPS
+15.75 VDC, +5 VDC, +3.3 VDC Outputs
Short-Circuit Current Protection
Triple Open-Emitter Connections to Negative DC Link
MCU Interface Connections
3 High-Side, 3 Low-Side Gate Drive Inputs
Fault Output
Bus Voltage Sense Output
3-Phase Current Sensing, Amplified
NTC Output Signal (when applicable)
Current Sense Resistors (when applicable)
图4.FEBSPM3SPM45_M01MTCA Motion SPM3/45H评估板框图
图5.FEBSPM3SPM45_M01MTCA SPM45电路图
图6.FEBSPM3SPM45_M01MTCA SPM3_V2电路图
图7.FEBSPM3SPM45_M01MTCA SPM3_V4电路图
图8.电源,HV充电指示器和电流检测电路图
图9.故障,Vbus_sense,J1和J2电路图
图10.PS1电路
图11.电流检测电路
图12.短路保护电路
FEBSPM3SPM45_M01MTCA Motion SPM3/45H评估板材料清单:
图13. FEBSPM3SPM45_M01MTCA Motion SPM3/45H评估板PCB元件布局图
图14.评估板PCB走线图(顶层)
图15.评估板PCB走线图(底层)
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