直流无刷电机驱动方案介绍 朱益杉 2018年5月24日 Power density: TECRT.

Presentation on theme: "直流无刷电机驱动方案介绍 朱益杉 2018年5月24日 Power density: TECRT."— Presentation transcript:

1 直流无刷电机驱动方案介绍 朱益杉 2018年5月24日 Power density: TECRT

2 内容 专注领域 产品组合及介绍 开发及生产工具支持 Q&A

3 专注领域 风机应用 水泵应用 … … 空气净化器 空调室内机风扇 空调室外机风扇 吊扇 除湿机 燃气热水气强排扇 落地扇 油烟机
洗碗机洗涤泵 一般水泵 智能马桶 逆渗透纯水 1

4 三相直流无刷电机驱动系统 RM02N60 RM05N60 Power Converter RT7300A (for<200W)
RT705x All-in-one RM02N60 RM05N60 Power Converter RT7300A (for<200W) Power Device BCM PFC RT707x Two-in-one RT8409 Sensorless or Hall-sensor Standby Power 3-PhaseGate Driver RT7100 Motor Controller

5 三相电机控制器—RT7100 ARM Cortex M0 (60MHz) + Control Blocks
Control algorithm: Sensorless (or 1 Hall element) Sine-wave FOC　　 Embedded motor control library UL-IEC60730 certificated (No. E478780) (60MHz) RT7100 TSSOP-28

6 Sensor (Hall elements) Production yield concern
无感测的主要优点 Sensorless Sensor (Hall elements) Reliability issue Highly reliable Hall-element dependent Production yield concern Easy to control Critical to binning (need high accuracy for alignment ) Efficiency concern Stable Variant (efficiency affected by hall-element alignment) Cost -- Extra cost of Hall Sensor (Hall element) Hall element or Hall sensor

7 System safety check (OC, OT)
UL IEC-60730安规认证 IEC Library Risk of fire Micro-electronics check (PC, ADC, registers…etc.) System safety check (OC, OT) System FMEA Benefits: Assure operation safety under firmware fault conditions. Shorten certificate application process. Cost saving in certificate application. A guarantee of quality and safety to user and customer.

8 低转速时的相电流波形 High performance sine-wave FOC still sine-wave
RT7100 still sine-wave High performance sine-wave FOC Solution A waveform distortion Solution B waveform distortion Sine-wave at low speed operation Lower noise & vibration 8 * These waveforms are measured at low speed (150RPM) with the same pedestal fan.

9 600V“二合一”方案—RT7075 Integrate MCM Motor controller & Gate driver
Motor Control LIB Sensor-less FOC Startup Strategy Current Control Speed Control IEC LIB Micro Electronic Check Over Current Check Lock Rotor Check Integrate MCM Motor controller & Gate driver LQFP 7x7-48 Motor controller 1 Gate driver RM02N60 RT7075 UL IEC certificated (No. E478780)

10 三相直流无刷电机驱动产品 Solution Product no. Max Rating 5V LDO Bootstrap diodes
Package Status* 3 phase motor controller RT7100-G2YYY RT7100-U2YYY -- External TSSOP-28 MP motor controller + gate driver (two-in-one) RT7075-G2YYY RT7075-U2YYY 600V LQFP7x7-48 RT7076-G2YYY RT7076-U2YYY 250V Built in RT7079-G2YYY RT7079-U2YYY 60V DVP * MP: Mass production ; DVP: Developing

11 600V“三合一”方案—RT7053 Motor controller Gate driver Bootstrap diodes
600V/2A IGBT WQFN 13x13-38 RT7053

12 + 三合一产品的效益 Reduce device count
Integrate AC/DC & motor driver units to a signal PCB Easy design & cost effective Motor Driver IPM RT7053 L71 x W71 (mm) L71 x W71 (mm) + AC/DC L50 x W43 (mm) 1

13 600V单相门驱动产品 Product no. Max Rating Input Logic Package Status RT7027
HIN, LIN SOP-8 MP RT7028A RT7028B

14 开发工具—电机调适板支持 AC/DC Board Motor tuning EVB Programming Kit Ke Board
Communication Kit 14

15 开发工具—软件支持 Adaptive Motor Control Development System
Complete motor control library Startup strategy Debug support Firmware example Lower design complexity Shorten motor tuning process Reduce development cycle 1

16 Off-line programming kit
生产工具支持 IC Firmware (F/W) Programming Support & Service On-line Isolated programming kit Off- line programming kit IC F/W re-programmable for assembled motors IC F/W programmable for mass production F/W re-programming by FG & VSP pins On-line Isolated programming kit Off-line programming kit

17 感谢聆听

18 Do not duplicate and distribute
Richtek Confidential Reference Only Do not duplicate and distribute 2