3-Phase Advance Motion Module – 400VDC – 4A
This is an advanced Motion module providing a fully featured, high-performance inverter output stage for AC induction, BLDC and PMSM motors such as refrigerators, fans, and pumps. This module is based on NFA50460 chip which integrates the optimized gate drive of the built−in IGBTs (FS4 RC IGBT technology) to minimize EMI and losses, while also providing multiple on−module protection features including under−voltage lockouts and thermal monitoring. The built−in high-speed Driver IC 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 internal IGBTs. Separate open emitter IGBT terminals are available for each phase to support the widest variety of control algorithms. Heatsink is a must for the IC before conducting any test.
The project is built using NFA50460R4B IPM chip. This compact and reliable inverter project is ideal for small power motors such as fans and pumps. H-bridge configuration can also be created for low current high-voltage brushed DC motors. The Inverter project supports loads up to 4A. DC power supply voltage is up to 400VDC. The project operates with 6 PWM signals. Parameters for bootstrap circuit elements are dependent on PWM algorithm. For 15 kHz of switching frequency Bootstrap capacitors C3, C4, and C5 values is 1uF. Resistor R4, R6, R7, R11, R15, R16 and capacitor C9, C10, C11, C12, C16, C17 prevent improper signal due to surge-noise. The logic supply is protected with a 20V Zener diode, which prevents surge destruction under severe conditions. Comparator U2A provides low output when an over condition occurs, it measures the current across shunt resistor R13, and normally output is high. Comparator U2B is provided for over temperature, the output of U2B is high when IPM temperature is below 80 degrees C and goes low when the temperature reaches the threshold. A heatsink is a must for full load current, 2 mounting holes are provided throughout the PCB to mount the heatsink as shown in Figure below. Silicone thermal compound, also called thermal grease, should be applied between the heat sink and the flat surface of the IPM to fill microscopic air gaps due to imperfect flatness that ultimately reduces the contact thermal resistance. The IPM module should be soldered first. Excessive torque may bend the PCB.
Features
- Load Power Supply Up to 400V DC (Maximum 450V DC)
- Load Current Continues 4A
- Logic Supply 15V DC, Current 100mA
- Power Supply for Over Current/Temperature Circuit (Comparator U2) 5V DC
- One Board Power LED for Logic Supply
- Shunt and Comparator Based Over Current Output
- Over temperature threshold is 80 degrees centigrade.
- HVIC for gate driving and under-voltage protection
- Active-High interface, can work with 3.3V/5V logic (PWM Signals)
- On Threshold Voltage 2.9V, Off Threshold Voltage 0.8V
- Optimized for low electromagnetic interference
- Isolation voltage rating of 1500Vrms for 1min
- 4 x 4 mm Mounting Holes
- PCB Dimensions 60.64 x 54.29 mm
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This is an advanced Motion module providing a fully featured, high-performance inverter output stage for AC induction, BLDC and PMSM motors such as refrigerators, fans, and pumps. This module is based on NFA50460 chip which integrates the optimized gate drive of the built−in IGBTs (FS4 RC IGBT technology) to minimize EMI and losses, while also providing multiple on−module protection features including under−voltage lockouts and thermal monitoring. The built−in high-speed Driver IC 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 internal IGBTs. Separate open emitter IGBT terminals are available for each phase to support the widest variety of control algorithms. Heatsink is a must for the IC before conducting any test.
The project is built using NFA50460R4B IPM chip. This compact and reliable inverter project is ideal for small power motors such as fans and pumps. H-bridge configuration can also be created for low current high-voltage brushed DC motors. The Inverter project supports loads up to 4A. DC power supply voltage is up to 400VDC. The project operates with 6 PWM signals. Parameters for bootstrap circuit elements are dependent on PWM algorithm. For 15 kHz of switching frequency Bootstrap capacitors C3, C4, and C5 values is 1uF. Resistor R4, R6, R7, R11, R15, R16 and capacitor C9, C10, C11, C12, C16, C17 prevent improper signal due to surge-noise. The logic supply is protected with a 20V Zener diode, which prevents surge destruction under severe conditions. Comparator U2A provides low output when an over condition occurs, it measures the current across shunt resistor R13, and normally output is high. Comparator U2B is provided for over temperature, the output of U2B is high when IPM temperature is below 80 degrees C and goes low when the temperature reaches the threshold. A heatsink is a must for full load current, 2 mounting holes are provided throughout the PCB to mount the heatsink as shown in Figure below. Silicone thermal compound, also called thermal grease, should be applied between the heat sink and the flat surface of the IPM to fill microscopic air gaps due to imperfect flatness that ultimately reduces the contact thermal resistance. The IPM module should be soldered first. Excessive torque may bend the PCB.
Features
- Load Power Supply Up to 400V DC (Maximum 450V DC)
- Load Current Continues 4A
- Logic Supply 15V DC, Current 100mA
- Power Supply for Over Current/Temperature Circuit (Comparator U2) 5V DC
- One Board Power LED for Logic Supply
- Shunt and Comparator Based Over Current Output
- Over temperature threshold is 80 degrees centigrade.
- HVIC for gate driving and under-voltage protection
- Active-High interface, can work with 3.3V/5V logic (PWM Signals)
- On Threshold Voltage 2.9V, Off Threshold Voltage 0.8V
- Optimized for low electromagnetic interference
- Isolation voltage rating of 1500Vrms for 1min
- 4 x 4 mm Mounting Holes
- PCB Dimensions 60.64 x 54.29 mm
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