hv-heater

HV Heaters/PTC Heaters

HV (PTC) heaters that replace engine heat to electrically warm the seats and interior of electric vehicles (xEVs) require high-voltage, high-reliability, high-efficiency power semiconductors.
ROHM IGBTs deliver excellent short-circuit withstand time with low loss, contributing to the stable operation of HV heaters.

Block Diagram

HV Heaters/PTC Heaters Block Diagram

*Click to enlarge image.

Isolated DC-DC
Protection circuit
Power Management
Interface
Protection circuit
Signal Control
Drive Stage
Power Stage

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Reference Design

Reference Designs

ROHM provides a system-level evaluation board (solution board) that combines ROHM's IC and discrete products. We have already solved not only the characteristics of individual products but also the problems that may occur when combining them to build a system, thus contributing significantly to the reduction of development time for our customers.

Topology Selection

When designing power supply circuits, it is necessary to select a circuit configuration (topology) that meets the required specifications, as the input/output voltages, power, isolation, and other factors will vary depending on the application. Selection of the optimal components will also differ based on the topology. Selecting the wrong components can lead to a failure to meet the required specifications, necessitating a complete redesign of the circuit. ROHM’s topology selection page guides users in selecting the optimal devices for various topologies.

ROHM Solution Simulator

ROHM Solution Simulator

ROHM Solution Simulator is a new web-based electronic circuit simulation tool that can carry out a variety of simulations, from initial development that involves component selection and individual device verification to the system-level verification stage. This makes it possible to quickly and easily implement complete circuit verification of ROHM power devices (i.e. SiC) and ICs (e.g. driver and power supply ICs), in simulation circuits under close to actual conditions, significantly reducing application development efforts.
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Design Model

Design Models

ROHM offers simulation models, including thermal models, PLECS models, and Ray files, for circuit and thermal simulations of discretes and ICs, including power devices.
 

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Video

  • ROHM's Automotive Semiconductor Solutions

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Catalog

Application Brochure for AUTOMOTIVE
Application Brochure for AUTOMOTIVE
Molded Power Modules for Traction Inverter Drive TRCDRIVE pack™
Molded Power Modules for Traction Inverter Drive TRCDRIVE pack™
Power Device Catalog
Power Device Catalog
EV Solution Brochure (Devices for EV)
EV Solution Brochure (Devices for EV)
Nano Power Supply Technology Brochure
Nano Power Supply Technology Brochure
ComfySIL™ Brochure (for Functional Safety)
ComfySIL™ Brochure
IPD / Smart Switch Brochure
IPD / Smart Switch Brochure
Automotive Regulator Selection Guide
Automotive Regulator Selection Guide
Serial EEPROM Selection Guide
Serial EEPROM Selection Guide

Global-製品特設CSS

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