General-Purpose Inverter
详情介绍
Overview
A general-purpose inverter is a device that provides highly accurate, variable control of the speed of a motor. Inverters are widely used in industrial equipment such as construction machinery, food processing equipment, conveyors, printing presses, fans, and pumps. The trend in recent years has been toward more diversity in inverter designs, with added features like Ethernet or USB interfaces to enable remote control. General-purpose inverters have achieved greater levels of performance and become smaller as their usage has become more widespread.
Renesas Electronics is facilitating this trend by offering the RZ/T1 Group, RX71M Group, RX64M Group, and more MCUs and MPUs. These 32-bit RISC devices are ideal for converter control applications because they incorporate various peripheral functions such as timers and interrupt controllers, as well as Ethernet, USB, and serial interfaces. Renesas also supplies other semiconductor components for inverter applications: control TRIACs, IGBTs, etc. Advanced functionality, high performance, reduced power consumption, and lower cost characterize the products offered.
System Block Diagram
Recommended Products
| Block | Semiconductor device | Recommended products | Features, etc. | |
|---|---|---|---|---|
| Control MCU & MPU | MCU & MPU | RZ/T1 Group |
Higher performance real-time control of AC servos, etc. Multiple industrial Ethernet protocols are supported (R-IN engine built-in version only) |
|
| RX71M Group | Built-in FPU, fast Flash access, multi-function timer, High speed 12bitA/D, on-chip S＆H circuit x 3ch, 240MHz operation (RX71M), 120MHz operation(RX64M) |
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| RX64M Group | ||||
| RX63T Group | Built-in FPU, fast Flash access, 5V operation, multi-function timer, High speed 12bitA/D, on-chip S＆H circuit, Built-in PGA *1, 100MHz operation |
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| RX24T Group | Built-in FPU, 5V operation, multi-function timer, High speed 12bitA/D, on-chip S＆H circuit, Built-in PGA *1, 80MHz operation |
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| RX23T Group | Built-in FPU, 5V operation, multi-function timer, High speed 12bitA/D, on-chip S＆H circuit, 40MHz operation |
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| MCU peripheral | SRAM | R1LVxxxxx Series | Low power consumption, guaranteed over wide operating termperature range | |
| Reset IC | RNA5195x | Variable detection voltage | ||
| Sensor output | Op-amp Comparator |
READ2302GSP | General-purpose CMOS op-amp, comparator Low power consumption |
|
| μPC358 μPC324 |
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| μPC393 | ||||
| Isolation-amp delta-sigma generator |
PS8352A | analog out put, accuracy ±1% | ||
| PS9352A | digital out put, accuracy ±1% | |||
| Main motor | EEPROM | R1EX24xxx Series | I 2 C bus interface *2 | |
| R1EX25xxx Series | SPI bus interface *3 | |||
| Inverter | IGBT | RJH60Dx Series | Short circuit time required | |
| IGBT gate driver | Photocoupler (IGBT drive) | PS93xx Series (6/8p-SDIP) PS94xx Series (16p-SOP) PS95xx Series (8p-DIP) PS99xx Series (8p-LSDIP) |
High isolation voltage (5kV～7.5kVr.m.s.) 0.6～2.5A output High CMR (CMR≧50kV/μs) |
|
| TRIAC control | Photocoupler (Standard) | PS23xx Series PS27xx Series PS28xx Series |
High isolation voltage (5kVr.m.s.), 4p-LSOP, Ta=115°C High isolation voltage (3.75kVr.m.s.), 4p-SOP, Ta=110°C High isolation voltage (2.5kVr.m.s.), 4p-SSOP, Ta=110°C |
|
| For signal transmission | Photocoupler (high-speed) |
PS91xx Series (SOP) PS93xx Series (SDIP) PS98xx Series (Small SOP) PS99xx Series (LSDIP) |
Digital output ～15Mbps Low supply current |
|
| Power supply/ PFC |
PFC IC | R2A20112A , R2A20132 | Critical conduction mode interleaving | |
| R2A20114B | Continuous conduction mode interleaving | |||
| IGBT | RJP/RJH65Txx Series | Fast switching, reduced conduction loss | ||
| Power supply/ Inrush current prevention ciruit |
TRIAC | BCR Series | Surface-mount package (LDPAK(S)-(1)) Non-isolated package (TO-220) Isolated package (TO-220F, TO-220FL) |
|
*1 PGA : Programmable Gain Amplifier
*2 I 2 C : Inter-Integrated Circuit
*3 SPI : Serial Peripheral Interface
Related Application Notes/Sample Code
*: Please contact your sales representative or contact us directly.
Related Boards
| Name | Part No. |
|---|---|
| R2A20114B evaluation board * | - |
| RZ/T1 MOTION CONTROL SOLUTION KIT * | - |
| 24V Motor Control Evaluation System for RX23T | RTK0EM0006S01212BJ |
| RX24T CPU Card | RTK0EM0009C03402BJ |
| For reference boards about motor control, please see the Motor Control page. | - |
*: Please contact your sales representative or contact us directly.