中国电子技术网

设为首页 网站地图 加入收藏

 

[原创] PowerInt BridgeSwitchBRD1165C300 W三相逆变器参考设计DER-653

关键词:电源管理 三相逆变器 家用电器

时间:2018-12-14 11:33:56       作者:PowerInt       来源:中电网

powerint公司的BridgeSwitch™系列是集成了设备保护和系统监测的高压自供电的半桥马达驱动器,大大地简化高压逆变器2/3相PM或BLDC马达驱动的开发和生产.全集成半桥级的效率高达98%,额定连续编RMS电流时不需要外接散热器.器件集成了600V N沟功率FREDFET和超软快恢复二极管,提供内部故障保护功能和外部系统级监测,主要用在2相或三相高压PM和BLDC马达驱动,高达300W逆变器输出功率,包括洗碗机和冰箱在内的家用电器,高效空调中的冷凝器风扇.本文介绍了本文介绍了BridgeSwitch™系列产品亮点,功能框图,应用电路以及采用BridgeSwitchBRD1165C的300 W三相逆变器参考设计DER-653主要特性,电路图,材料清单和PCB布局图.

The BridgeSwitch™ family of integrated half-bridges dramaticallysimplifies the development and production of high-voltage inverterdriven 2- or 3-phase PM or BLDC motor drives. It incorporates twohigh-voltage N-channel power FREDFETs with low and high-side driversin a single small-outline package. The internal power FREDFETs offer ultra-soft and ultrafast diodes ideally suited for hard switched inverterdrives. Both drivers are self-supplied eliminating the need for anexternal auxiliary power supply. BridgeSwitch provides a uniqueinstantaneous phase current output signal simplifying implementation ofsensor-less control schemes. The low-profile, compact footprint surfacemount package offers extended creepage distances and allows heatsinking of both power FREDFETs through the printed circuit board.

BridgeSwitch offers internal fault protection functions and externalsystem level monitoring. Internal fault protection includes cycle-by-cycle current limit for both FREDFETs and two level thermal overloadprotection. External system level monitoring includes DC bus sensingwith four undervoltage levels and one overvoltage level as well asdriving external sensors such as an NTC. The bi-directional bussedsingle wire status interface reports observed status changes.

BridgeSwitch™系列产品亮点:

Highest Performance and Design Flexibility
• Fully integrated half-bridge stage with up to 98% efficiency
• Eliminates external heat sink at rated continuous RMS current
• 600 V N-channel power FREDFETs
• Ultra-soft, fast recovery diode
• Accurate instantaneous phase current information output (BRD126X)
• Eliminates external sensing and amplification circuitry
• Self-biased low-side and high-side drivers
• Eliminates need for auxiliary power supply
• Small footprint surface mount inSOP-24C package
• Exposed pads enable heat sinking through PCB
• Controlled FREDFET switching speed reduces EMI
Enhanced Safety and Reliability Features
• Adustable cycle-by-cycle current limit for both FREDFETs
• Fail-safe operation
• Internal dual level thermal overload protection
• Self-configuring system level monitoring input
• Four level DC bus undervoltage
• DC bus overvoltage
• System temperature
• Adaptive dead time
• Simultaneous conduction lockout protection
Status Interface
• Bi-directional bussed open Drain single wire interface
• Reports status updates to system MCU
• Successful power-up
• Internal over-current or temperature faults
• System level faults
• Includes device identification
• Status query through system MCU
• Device fault reset through system MCU

BridgeSwitch™系列产品应用:

• 2- or 3-phase high-voltage PM and BLDC motor drives
• Up to 300 W typical inverter output power
• Appliances including dish washers and refrigerators
• Condenser fans in high efficiency air conditioners

图1.BridgeSwitch™系列BRD116x功能框图

图2.BridgeSwitch™系列BRD126x功能框图

图3.典型的三相逆变器电路图(BRD126X)

图4.采用BRD1265C三相逆变器的DER-654电路图

采用BridgeSwitch系列BRD1165C的300 W三相逆变器参考设计DER-653

This document describes a 300 W, 97% efficient, 3-phase inverter for high-voltage brushless DC (BLDC) motor application using BridgeSwitchTM BRD1165C device. The design shows the device performance, internal level monitoring, system level monitoring, and fault protection facilitated by the high level of integration of the BridgeSwitchTM half-bridge motor driver IC. A high voltage, low component count buck converter employing a LinkSwitch-TN2 LNK3204D device supplies the motor control microcontroller, current sense amplifier, ground sense comparator, UART (Universal Asynchronous Receiver- Transmitter), as well as all logic and interface circuitry.

The Toshiba TMP375FSDMG microcontroller (MCU) is used in this demonstration board design. It is a high-performance microcontroller and incorporates routine processing hardware called “Vector Engine" for motor vector control.

In addition, this document also contains the inverter specification, schematic, bill of materials, printed circuit board (PCB) layout, performance data, and test setup. The provided waveforms along with the design performance are based on a sensorless field oriented control (FOC) motor control method using Toshiba’s 32-bit RISC microcontroller TMPM375FSDMG.

三相逆变器参考设计DER-653主要特性:

 BridgeSwitch – high-voltage half-bridge motor driver
 Integrated 600 V FREDFETs with ultra-soft, fast recovery diodes
 No heat sink
 Fully self-biased operation – simplifies auxiliary power supply
 High-side and low-side cycle-by-cycle current limit
 Two level device over-temperature protection
 High-voltage bus monitor with four undervoltage thresholds and one overvoltage threshold
 System level temperature monitor
 Single wire status update communication bus
 Sensorless field oriented control (FOC)

图5.三相逆变器参考设计DER-653外形图

图6.三相逆变器参考设计DER-653外形图(底视)

图7.三相逆变器参考设计DER-653元件分布图
三相逆变器参考设计DER-653主要指标:


图8.三相逆变器参考设计DER-653电路图

图9.Toshiba微控制器电路图

图10.JTAG/SWD连接器电路

图11.大容量输入电路

图12.辅助电路

图12.电流检测放大器电路

图13.地检测比较器电路

图14.UART电路
三相逆变器参考设计DER-653材料清单:





图15.三相逆变器参考设计DER-653 PCB顶层布局图

图16.三相逆变器参考设计DER-653 PCB底层布局图
详情请见:
https://motor-driver.powerint.cn/sites/default/files/product-docs/bridgeswitch_family_datasheet.pdf
https://motor-driver.powerint.cn/sites/default/files/PDFFiles/der-653_300watt_3-phase_inverter_using_bridgeswitch_and_linkswitch-tn2.pdf
bridgeswitch_family_datasheet.pdf
der-653_300watt_3-phase_inverter_using_bridgeswitch_and_linkswitch-tn2.pdf

  • 分享到:

 

猜你喜欢