This paper describes a new control algorithm which can enhance the dynamics of a sensorless control system and gives a precise sensorless control performance. Instead of the conventional sinusoidal-type voltage injection, a square-wave-type voltage injection incorporated with the associated signal processing method is proposed in this paper. As a result, the error signal can be calculated without low-pass filters and time delays, and the position estimation performance can be enhanced. Using the proposed method, the performance of the sensorless control can be enhanced; the bandwidth of the current controller was enhanced up to 250 Hz, and that of the speed controller was up to 50 Hz.
2021-06-03 20:24:33
1.83MB
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MINI MICRO A型B型D型USB封装库USB type-c母座 AD元件库PCB封装库USB封装大全，PcbLib后缀文件，共计 45个封装文件，可以直接应用到你的项目设计中。
封装型号列表如下：
TE_TYPE-C
_CUI_UJ31-CH-G2-SMT-TR_UJ31-CH-G2-SMT-TR(Primary)
_TE_1-2295018-2_1-2295018-2(Primary)
CONN24_USB229501 - duplicate
USB
USB_A
USB_A/P_A
USB_A/P_B
USB_B_180
USB_ITF_C
USB_MICRO_AB
USB A/2-14
USB A/2-17
USB 母 双层 90°
USB-2A
USB-A
USB-A STAND
USB-A-180
USB-A/S_A
USB-A/S_B
USB-A/S_C
USB-A/S_D
USB-A/S_E
USB-A/S_F
USB-A1
USB-B
USB-B-F-AX
USB-B/S_A
USB-C/S_A
USB-C/S_B
USB-DSIP4
USB-MICRO
USB-micro_A
USB-MICRO_B
USB-micro_C
USB-MICRO_D
USB-MICRO_E
USB-MICRO-AB
USB-MINI
USB-MINI-A
USB-MINIA
USB-plug1
USB-PORTA
USB/SM0.8-6H5
USBHEADER
2021-05-28 11:02:37
24.58MB
一般平板电视或视频设备，都提供了这种尺寸的接口，Type A有19针，宽度为13.9毫米、厚度为4.45毫米，现在能看到的设备99%都是这样尺寸的HDMI接口。
主要包括贴片/插件 公HDMI封装库、夹板型母头HDMI封装库。
2021-05-26 11:24:22
127KB
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整合了网上的资源，整理出了常用通信接口一（串口、RS232、RS485、USB、TYPE-C原理与区别），含概念，原理，原理图，基本上有这一份就够了
2021-05-22 21:41:42
1.28MB
1
这是可用的版本,转自VBGood
上次那个是从PowerVB网站上下的,是试用版,无法保存.
2021-05-20 13:13:37
299KB
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