基于LV8907无传感器三相无刷直流马达控制方案
on semi公司的lv8907是高性能aec-q100许可的无传感器三相无刷直流（bldc）马达控制器，集成了用来驱动外接n-mosfet的栅极驱动器，两级电荷泵提供各种低rds（on）外接n-mosfet所需的栅极电压，工作结温高达175ºc，工作电压5.5v 到 20v，主要用在汽车泵（燃料泵，油泵和水泵），风扇（hvac，散热器，电池冷却，led头灯冷却）以及白色家电和工业bldc马达控制。本文介绍了lv8907主要特性，框图，典型应用电路以及评估板lv8907uwgevk主要特性，电路图和材料清单。
the lv8907 is a high performance， aec-q100 qualified， sensor-less three-phase bldc motor controller with integrated gate drivers for driving external n-mosfets. an on-chip two-stage charge pump provides required gate voltage for a wide range of low rds（on） type external n-mosfets. the device offers a rich set of system protection and diagnostic functions such as over-current， over-voltage， short-circuit， under-voltage， over-temperature and many more. it supports open-loop as well as closed-loop speed control with user configurable startup， speed setting and proportional/integral （pi） control coefficients， making it suitable for a wide range of motor and load combinations. with a built-in linear regulator for powering external circuits， a watchdog timer， and a lin （local interconnect network） transceiver， the lv8907 offers a very small system solution. the lv8907 stores system parameters in embedded one-time programmable （otp） non-volatile memory in addition to ram system memory. an spi interface is provided for parameter setting and monitoring the system status. with the operating junction temperature tolerance up to 175ºc and electrically lin compatible control signals （pwm and enable）， the lv8907 is an ideal solution for stand-alone bldc motor control systems.
lv8907主要特性：
aec-q100 qualified and ppap capable.
operating junction temperature up to 175ºc
operating voltage range from 5.5v to 20v with tolerance from 4.5v to 40v
embedded proprietary sensor-less trapezoidal and pseudo-sinusoidal commutation
supports open-loop as well as closed-loop speed control
integrated gate drivers for driving six n-mosfets
two-stage charge pump for continuous 100% duty cycle operation
5v/3.3v regulator， lin transceiver and watchdog timer applications using an external microcontroller.
configurable speed settings and pi control coefficients
various system protection features including：
shoot through protection using configurable dead-time
drain-source short detection
cycle-by-cycle current limit and over-current shutdown
over-voltage and under-voltage shutdown
over-temperature warning and shutdown
input pwm fault detection
lv8907典型应用：
automotive pumps （fuel， oil， and hydraulic）
fans （hvac， radiator， battery cooling， led headlight cooling）
white goods and industrial bldc motor control
图1.lv8907框图
图2.lv8907单独使用配置图
图3.lv8907基于lin的控制配置图
lv8907uw评估板lv8907uwgevk
the lv8907uwgevk evaluation kit v1.0 is designed to provide an easy and quick development platform for three phase sensor-less bldc motor control applications using the lv8907uw. the lv8907uw is a stand-alone solution that does not need a microcontroller for operation. an atmel microcontroller is included in the kit to communicate via usb with the pc based graphical user interface （gui） and support some peripheral functions such as current and voltage measurement， and external temperature monitoring for easier system development. for quick-start and basic the kit consists of：
1. lv8907uw evaluation board （evb）
2. usb cable type a to mini b.
3. graphical user interface.
评估板lv8907uwgevk主要特性：
• motor operation： 7v to 20v （40v transient）。
• max current： 30a.
• maximum continuous power： 400w.
图4.评估板lv8907uwgevk外形图
图5.评估板lv8907uwgevk电路图(1)
图6.评估板lv8907uwgevk电路图(2)
评估板lv8907uwgevk材料清单:
电路设计的思路和原则
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技术干货 全面对11种AGV导航方式进行一次性阐述
基于LV8907无传感器三相无刷直流马达控制方案
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关于单反相机，它的传感器尺寸都有哪些
the lv8907 is a high performance， aec-q100 qualified， sensor-less three-phase bldc motor controller with integrated gate drivers for driving external n-mosfets. an on-chip two-stage charge pump provides required gate voltage for a wide range of low rds（on） type external n-mosfets. the device offers a rich set of system protection and diagnostic functions such as over-current， over-voltage， short-circuit， under-voltage， over-temperature and many more. it supports open-loop as well as closed-loop speed control with user configurable startup， speed setting and proportional/integral （pi） control coefficients， making it suitable for a wide range of motor and load combinations. with a built-in linear regulator for powering external circuits， a watchdog timer， and a lin （local interconnect network） transceiver， the lv8907 offers a very small system solution. the lv8907 stores system parameters in embedded one-time programmable （otp） non-volatile memory in addition to ram system memory. an spi interface is provided for parameter setting and monitoring the system status. with the operating junction temperature tolerance up to 175ºc and electrically lin compatible control signals （pwm and enable）， the lv8907 is an ideal solution for stand-alone bldc motor control systems.
lv8907主要特性：
aec-q100 qualified and ppap capable.
operating junction temperature up to 175ºc
operating voltage range from 5.5v to 20v with tolerance from 4.5v to 40v
embedded proprietary sensor-less trapezoidal and pseudo-sinusoidal commutation
supports open-loop as well as closed-loop speed control
integrated gate drivers for driving six n-mosfets
two-stage charge pump for continuous 100% duty cycle operation
5v/3.3v regulator， lin transceiver and watchdog timer applications using an external microcontroller.
configurable speed settings and pi control coefficients
various system protection features including：
shoot through protection using configurable dead-time
drain-source short detection
cycle-by-cycle current limit and over-current shutdown
over-voltage and under-voltage shutdown
over-temperature warning and shutdown
input pwm fault detection
lv8907典型应用：
automotive pumps （fuel， oil， and hydraulic）
fans （hvac， radiator， battery cooling， led headlight cooling）
white goods and industrial bldc motor control
图1.lv8907框图
图2.lv8907单独使用配置图
图3.lv8907基于lin的控制配置图
lv8907uw评估板lv8907uwgevk
the lv8907uwgevk evaluation kit v1.0 is designed to provide an easy and quick development platform for three phase sensor-less bldc motor control applications using the lv8907uw. the lv8907uw is a stand-alone solution that does not need a microcontroller for operation. an atmel microcontroller is included in the kit to communicate via usb with the pc based graphical user interface （gui） and support some peripheral functions such as current and voltage measurement， and external temperature monitoring for easier system development. for quick-start and basic the kit consists of：
1. lv8907uw evaluation board （evb）
2. usb cable type a to mini b.
3. graphical user interface.
评估板lv8907uwgevk主要特性：
• motor operation： 7v to 20v （40v transient）。
• max current： 30a.
• maximum continuous power： 400w.
图4.评估板lv8907uwgevk外形图
图5.评估板lv8907uwgevk电路图(1)
图6.评估板lv8907uwgevk电路图(2)
评估板lv8907uwgevk材料清单:
电路设计的思路和原则
松下在CES 2017中展出仅0.45mm可弯曲的锂电池
人工智能到底对传统制造业能影响到哪个程度？
一文看懂低压互感器型号及作用
技术干货 全面对11种AGV导航方式进行一次性阐述
基于LV8907无传感器三相无刷直流马达控制方案
如何实现更高分辨率，更少的位三元DAC
功率表测量用互感器接线有什么注意事项
ZigBee全面对比6LoWPAN_物联网最佳拍档花落谁家？
这张能运行Linux系统的PCB名片，肯定能让你眼前一亮
物联网通信系统中都包含着哪些通信技术
NFC传感器应答器可使用国产FRAM PB85RS2MC(MB85RS2MT)
互感型电表搭配电流互感器使用怎么读电表数
ARM汇编分支结构的小技巧
新品推荐 | 千视 NDI 多通道同步录制系统震撼上市！
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TGY2222ME贴片Y电容规格参数、规格书
开关电源中的噪声抑制：可听噪声消除技术
关于单反相机，它的传感器尺寸都有哪些