Overview

AC Drive is a variable-speed controller that precisely controls the shaft rotation speed, typically, an induction motor or synchronous motor. They are widely used in industrial machinery such as production line conveyors, cranes, elevators, fans, pumps, and compressors. As the need to save energy grows worldwide, there is widespread demand for an inverter control to boost energy efficiency. The performance and multifunctionality of inverters continue to improve. This is due to advances in simple controller functions, interfaces such as field networks of various types and USB, and display panels enhancing usability. At the same time, there is growing demand in emerging economies for inverters that are cheaper and more compact.

In response to these varied requirements, Renesas offers a broad lineup of products that provide scalability. The RX Family provide an array of on-chip peripheral functions such as multifunction timers and A/D converters optimized for inverter control, Ethernet and USB interfaces, and serial interfaces. Also available with analog and power devices suitable for inverter applications.

System Block Diagram

AC Drive Block Diagram

Recommended Products

Microcontrollers and Microprocessors

Semiconductor Device Recommended Products Features, etc.
Control MCU RX71M
  • Operating frequency (MHz): 240
  • Operating voltage (V): 3.3
  • On-chip memory (Max.): 4MB Flash, 552KB RAM, 64KB Data Flash
  • High performance RXv2 core and large memory for high precision motor control
RX63T
  • Operating frequency (MHz): 100
  • Operating voltage (V): 3.3 or 5
  • On-chip memory (Max.): 512KB Flash, 48KB RAM, 32KB Data Flash
  • Multifunctional timers and ADCs for precise motor control
  • External bus for interfacing with ASICs
RX24T
RX24U
  • Operating frequency (MHz): 80
  • Operating voltage (V): 2.7 to 5.5
  • On-chip memory (Max.): 512KB Flash, 32KB RAM, 8KB Data Flash
  • Compact form factor with necessary features to control motors of various supply voltages
Display/Option MCU RX65N, RX651
  • Operating frequency (MHz): 120
  • Operating voltage (V): 3.3
  • On-chip memory (Max.): 1MB Flash, 256KB RAM
  • High performance and low power consumption
  • Enhanced connectivity and encryption feature to meet various needs
RX113
  • Operating frequency (MHz): 32
  • Operating voltage (V): 3.3
  • On-chip memory (Max.): 512KB Flash, 64KB RAM, 8KB Data Flash
  • Suitable for various user interfaces such as LCD, touch sensor, USB etc.

Industrial Communication Chip

Semiconductor Device Recommended Products Features, etc.
Industrial Communication Controller
Multi-protocol
R-IN32M3-CL/EC
  • Support CC-Link IE, EtherCAT, EtherNet/IP etc. with one chip
R-IN32M4-CL2
  • Support CC-Link IE field (intelligent device)
  • Two Gigabit ports with built-in PHY
RZ/N1L
  • Easy slave implementation with R-IN Engine and specific hardware
Industrial Communication Controller
Dedicated Protocol
TPS-1
  • Best real-time performance, fully meets PROFINET IRT standards
EC-1
  • Optimized for EtherCAT applications
  • Provide solutions with high reliability

Memory

Semiconductor Device Recommended Products Features, etc.
SRAM RMLV0408E Series
RMLV0416E Series
  • Memory size: 4Mb
  • Access time (Max.): 45ns
  • Standby current (Typ.): 0.4μA
  • Renesas’ original memory cell technology is more than 500 times as resistant to software errors as full CMOS memory cells, providing the high reliability for the industrial market
RMLV0808B Series
RMLV0816B Series
  • Memory size: 8Mb
  • Access time (Max.): 45ns
  • Standby current (Typ.): 0.4μA
  • Renesas’ original memory cell technology is more than 500 times as resistant to software errors as full CMOS memory cells, providing the high reliability for the industrial market
RMLV1616A Series
  • Memory Size: 16Mb
  • Access Time (Max.): 55ns
  • Standby Current (Typ.): 0.5μA
  • Renesas’ original memory cell technology is more than 500 times as resistant to software errors as full CMOS memory cells, providing the high reliability for the industrial market
RMWV3216A Series
  • Memory size: 32Mb
  • Access time (Max.): 55ns
  • Standby current (Typ.): 1.0μA
  • Renesas’ original memory cell technology is more than 500 times as resistant to software errors as full CMOS memory cells, providing the high reliability for the industrial market

Analog and Power Devices

Semiconductor Device Recommended Products Features, etc.
DC/DC RAA23015x
  • Main specifications: Input voltage range: 7V to 28V, output voltage: 0.8V to 6V Max. output current: 3A Auto PFM (light load, high efficiency) mode
  • Simplify power supply design and shortening TAT in kits with Renesas microcontrollers
RAA23023x
  • Main specifications: Input voltage range: 4.5V to 16V, output voltage: 0.8V to 6V Max. output current: 3A Auto PFM (light load, high efficiency) mode Dual ch DC/DC
  • Simplify power supply design and shortening TAT in kits with Renesas microcontrollers
Isolation Amplifier PS8352A
PS9352A
  • Main Specifications: 1% precision, analog output, SDIP package 1% precision, digital output, SDIP package
  • Support for high temperature operation up to 110 °C
IGBT/IPM Drive Photocoupler PS9402/PS9031 PS9009/PS9905
  • Main specifications: IGBT protection circuit/2.5A output small package IPM drive/690V insolation
  • Ability to select from wide range of functions to match IGBTs used
High-speed Communication Photocoupler

Tr-output Photocoupler
PS9001
  • Main specifications: 10Mbps, compact, high voltage tolerance 690V insolation compact, high temperature tolerance
  • Compact and high voltage tolerance
PS8902/PS9924
PS2381