The HVAC E-Compressor system enables efficient cabin cooling and heat pump operation in EVs, replacing traditional belt-driven compressors with HV inverter-controlled electric motors. onsemi’s interactive block diagram highlights the key power and control components required to drive and manage the E-Compressor subsystem. It features both module and discrete power solutions including Si, SiC and IGBT power switches for the inverter stage.
Integrated solution with 1200V rated FS7 IGBTs, the ASPM26 smart power modules greatly simplifies the design of E-compressor, reducing component count and assembly complexity (versus discrete implementations) while improving overall system reliability and EMI performance. This approach ensures optimal component matching and minimal stray inductance. Designers benefit from onsemi’s in-house semiconductor technology and can expedite time to market by leveraging these drop-in inverter blocks. These modules deliver a compelling combination of high power density, automotive-grade robustness and design convenience, covering the needs of 800V class e-compressors.
Digital isolation and voltage/current sensing for signal feedback complete the E-compressor motor power stage. onsemi solutions also cover auxiliary power supplies, LV top-side cooled MOSFETs, LDOs, SmartFETs for LV power management and protection. CAN and 10BASE-T1S transceivers ensure fast and reliable communication within the automotive communication network.
E-Compressor Block Diagram
onsemi IGBTs
onsemi’s Insulated Gate Bipolar Transistor (IGBT) portfolio offers cutting-edge solutions for high-efficiency energy conversion across various applications.
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