Heat Pump
Heat pump is a proven way to provide secure and sustainable heating which is powered by low‐emissions electricity, is the central technology in the global transition to secure and sustainable heating. However, the primary objective of heat pumps is to provide heating, although reverse cycle heat pumps can also provide both heating and cooling. Due to their ability to recover waste heat and elevate its temperature to more practical levels, they possess significant potential for energy conservation.
Design Trends for HVAC
- High Power Density with minimum power dissipation, high efficiency and low EMI
- Scalable design for different hear pump power scaling
- Robust design and integration for long life - protection from environmental influences
- Downsizing -> smaller inverter package defines the entire design
IPM Features
- IPM contains inverter power stage, gate driver, NTC (optional), bootstrap diode and power switches
- Bring the power level up to 1-20kW for single and three-phase input AC drives
- Direct Bonded Copper:
- Outstanding thermal conductivity: 24(AL2O3) to 170 (ALN) W/mK
- Perfect isolation and no degradation: >20kV/mm
- Huge Resistivity > 10Ωcm @20°C
- Broad temperature range: -55°C to 850°C
- Common packages for P2P replacement
- SiC inside for a huge efficiency improvement
PFC Controllers
- State-of-the-art single-phase, totem pole or Interleaved PFC controllers to increase efficiency
- FAN9673 Interleaved PFC
- NCP1681 Interleaved PFC
- Integrated PFC
- Benefits:
- Efficiency improvement and power factor optimization
- Reducing of voltage drops and current losses
- Improvement by reducing harmonics and voltage fluctuations
- Ensures compliance with standards, thus avoiding penalties
Power Discretes
M3S EliteSiC MOSFET Features
- Optimized for High temperature operation
- Diodes : Low series-resistance temperature dependency
- MOSFETs : Stable reverse recovery over temperature
- Improved parasitic capacitances for high frequency and high efficiency application
- Large die with low RDS(on) available
FS7 IGBT
- The 1200V Trench FS7 IGBTs are newly used and recommended for the PFC stage of a three-phase heat pump system.
- R-series with low Vce(sat)=1.37V at rated current @25°C.
- Available packages: TO-247-3L, TO-247-4L, QD3, Bare die.
- PIM with FS7 available.
- Single Phase System - Outdoor Unit
- Single Phase System - Indoor Unit
- Three Phase System - Outdoor Unit
- Three Phase System - Indoor Unit
Single Phase System - Outdoor Unit
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Single Phase System - Indoor Unit
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Three Phase System - Outdoor Unit
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Three Phase System - Indoor Unit
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Additional Resources
IPM
- IPM Datasheets
- AND9944 – 3-phase Inverter Power Module 650V SPM49 Application Note
- AND9933 – 3-phase Inverter Power Module 650V SPM31 Application Note
- AND9088 – Smart Module, 600V SPM3 Application Note
- AND90189 – 3-phase Inverter Power Module 600V SPM5 Application NoteM
- AND9390 – 3-phase Inverter Power Module for the 600V DIPS6 Compact IPM Series
- AND90185 – Smart Power Module SPM45 Application Note
Power Discrete
- TND6396 – Silicon Carbide – From Challenging Material to Robust Reliability
- TND6260 - Physically Based, Scalable SPICE Modeling Methodologies for Modern Power Electronic Devices
- AN1040 – Mounting Considerations for Power Semiconductors
Gate Driver
- AND9949 – NCD(V)57000/1 Gate Driver Design Note
- TND6237 – SiC MOSFETs: Gate Drive Optimization
- AND9674 – Design and Application Guide of Bootstrap Circuit for High-Voltage Gate-Drive IC
- AND90004 – Analysis of Power Dissipation and Thermal Considerations for High Voltage Gate Drivers
PFC
- TND6361 – Meeting Challenging Efficiency Standards with Bridgeless Totem Pole Power Factor Correction
- AN42047 - Power Factor Correction Basics
- TND6278 - Power Factor Correction – Optimization Options
- AN4165 - Design Guideline for 3-Ch Interleaved CCM PFC Using the FAN9673 5kW CCM PFC Controller
- TND6384 – Totem Pole PFC Layout Considerations
- AND90156 - Key Steps to Design A Compact, High-Efficiency PFC Stage Using NCP1623A
- AND90147 – CrM Totem Pole PFC IC Tips and Tricks
- AND90011 – NCP1618 Tips and Tricks
- AND90012 - Key Steps to Design a Multimode PFC Stage Using the NCP1618A
- AND9925 – FAN9672/3 Tips and Tricks
Other Products
- AND9750 – Current Sense Amplifiers, FAQ
PFC
- NCP1680 Design Calculator
- NCP1681 Totem Pole Multi-Mode Controller Design Excel Calculator
- NCP1681 Totem Pole CCM Controller Design Excel Calculator
- NCP1681 Design Worksheet