Power management

Discuss power management solutions. Ask questions and find answers on voltage configurations, short circuit protection, and programming.

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Wireless Charging solution Wiki

This Topic is used for Wireless Charging solution 1.Mcu C drive code: GitHub - STMicroelectronics/STWirelessCharging-C-Drivers: Standard C platform-independent drivers for wireless charging ICs    

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willzhou by ST Employee
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speed feedback fault

Posted on January 15, 2014 at 11:41Hello.I've set up the a project with the MC lib from ST, but I run into issues with the hall sensors (I suspect). When I try to start the motor via the MC workbench, the motor makes a small hitch and then stops. Th...

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Which Motor Driver IC to select for driving a 12V 2.5A Solenoid

Posted on December 15, 2013 at 19:47Hello,I wanted to operate a solenoid of 12V 2.5A rating. I would like to know what kind of Motor Driver IC would be suitable for it (controlling through pwm). I am confused about RMS Current and Peak Current ratin...

gada by Associate III
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blank display on steval-ihm022v1

Posted on January 08, 2014 at 09:55Hi.I ordered the steval-ihm022v1 board. As I was familiarizing myself with the board I flashed the provided fw project (with small adaptions) and the lcd project onto the uC and it worked quite fine. But after abou...

Shunt current filter calculation (AN4076)

Posted on December 06, 2013 at 08:40Hello, Maybe someone could share 'Current sensing amplification stage design tool.xlsx' mentioned in AN4076 guide or explain how to calculate initial values of current sensing amplification filter? Or maybe there ...

lauris by Associate III
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L6480 sine wave step noise

Posted on December 17, 2013 at 18:01Hi, using the L6480 motor driver, having a problem with noise, probably due to the starting pulses of the sine wave. Its at 1/128step mode. Attached is a picture of the problem. Anyone know what settings need to ...

robert2 by Associate II
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VIPower HSD switches - PWM operation

Posted on December 20, 2013 at 11:39Hi,Are the M05 to M07 series of VIPower IC suitable for PWM control of resistive and inductive loads? The app note from M03 (AN1596) specified, ''In fact a standard number of cycles of a HSD is over 500,000 and th...

johnw by Associate
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L6470 WITH UNIPOLAR MOTOR

Posted on December 16, 2013 at 09:50I use ST L6470 with unipolar motor. L6470 is biplar type dirver, so I unconnected com line of unipolar motor. motor spec is below:  MAKER: sanyo denki  type : 103H5210-0480  1.2A/1.8DEGREE/3.3OHM. because unconnec...

sojaewoo by Associate II
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L6470 reversing problem

Posted on August 28, 2013 at 20:21We are using the L6470 in a new design. We have found that when we move to a position then reverse direction we find that the new position comes up short by 2 or 3 steps. After this initail error all future moves in...

fbasso by Associate
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L6470H :What concessions motor run better? Vibration noise

Posted on November 02, 2013 at 09:31hi,guys, how to calc ''Running target current''?? stepper motor parameter:1.5A current?nameplate?this is RMS current??????? min speed:50 steps/s,max speed 2000 steps/s, ACC 1000 steps/s2, test board:EVAL6470H &&...

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xiaohu by Associate
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3 watt LED driver using viper22AE

Posted on December 03, 2013 at 13:32Hi please help me to design 3 watt LED driver using viper22AE. The information given in datasheet is not getting me.

h7techs by Associate
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