Power Forum Discussions

 

Hi,

I have a scope picture regarding the catch-spin function. The yellow channel represents the Vbus voltage, while the pink channel represents the motor current of one phase. When I start the motor at low speed, the catch-spin function works correctly. The motor current is nearly zero, and the bus voltage remains normal.

However, when I start the motor at high speed, the motor current does not quickly reach zero, causing the bus voltage to rise and eventually reach the over-voltage level. If the bus voltage reaches a critical over-voltage level, the motor phase becomes shorted, and the current becomes uncontrolled, as depicted in the following scope picture.

I want to know if there is any way to better utilize the catch-spin function to avoid high-speed overvoltage faults. All of this relates to the "Forward catch-spin" function. My application involves an industrial fan.

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Hello, 

Please tell me how to use EVAL-1ED38x0DCT.
Even if you connect it to a PC via USB, the click start button will not appear and you will not be able to use it, as shown below.
Is there any solution?

best regards,

 

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There is said that this bright feet + logo a bit unlike is IR Mexico factory production, I can not judge, please gods look at, this is not authentic, thank you!

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I want to use the BTS5012 model. I want to control the on and off of different LED lamps and know if this model can be applied a 50% duty cycle on the IN pin through a microcontroller to dim the LED lighting. Is this application safe for the proper functioning of the component? Show Less

hi

工程师

U2 D 和S直接之间的线宽我用的120mil, 四个S我也是用120mil 连接的， 这样对吗？

另外， C11是25V, 连接到D4，我用的20mil, 是对的吗？

期待你的回复

谢谢

 

 

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Hi support,

I would like to set-up a UART connection on my NAC1080 using the GPIO0 and GPIO2 in order to communicate with my PC the messages that the NAC1080 will be sending.

 

I've been reviewing the uart_drv.h library you have available and what I can't see is how the data transmission works.

There's a function called "transmit_bytes()" that send the Tx buffer data, but where's the Tx buffer? 

How could I edit the data on that buffer to be able to send the desired message?

 

Regards,

-K

 

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Dear Sir，

BTS71220-4ESA的规格书中对过流保护点数值有进行定义，但未给出过流保护的延迟时间，参考其它型号的高边开关都是有给出这个延迟时间的，还请帮忙确认下

 

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