Power management

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HI folks!,I'm here because of I am a little bit confused about the behaviour of MOVEcommands sent to a pair of L6470 devices connected in daisy chain.The problem that I'm facing happens also if I sent the commands only toone motor.In our project both the stepper motor spin a valve and in this project'sphase we can see the valve mounted on the motor's rotor.The motor step angle is 1.8 degrees (200 full steps per revolution) andwe set the STEP_SEL field of the STEP_MODE register to the value of 7 so that the step mode selected is 1/128 microstep.The Homing procedure goes fine, the homing switch is correctly engagedand after that event if I sent a GETPAR(ABSPOS) I get the zero value forthe ABSPOS register.With a motor with 200 full steps per revolution and a step mode of 128microsteps, to make the rotor perform a full revolution of 360 degreeswe send to the stepper a MOVE(DIR, 25600): we effectively see the rotorrotating for 360 degrees.Then the PROBLEM:After the Homing procedure, we want

Dear Sirs,I don´t know how to calculate RCS or RCL. For example, IOUT is 2.9A and ILIM is 3A, but what are the values for RCL and RCS?Very thanksfull for help.Regards,Jean-Paul

I've tried 3 circuits for testing, with various 1 cell LiPo batteries(300mA~ 500mA)STNS01 CHR pin keep toggling 1Hz when VBUS connected in.(with or without battery)And it is not charging batt. at all.VBUS 4.92V, Batt 3.8V

Hii am using stspin240 have following doubts,1). How to enable the current limiting feature,2). What is the voltage have to apply on REF pin (pin-11),3). What is criteria / must taken care conditions to measure voltage on SENSEA , SENSEB pins,4).Also what is the reason SENSEA,SENSEB pin values are always 0.

The following two designs were generated by EDS: Could someone please advise which one is more recommended for powering a LED strip? And can you suggest any off-the-shelf transformer PN that can go with any of these designs?

VDD�?��?�電�?�?�ノイズ�?��?�り�?�??れを使用�?��?�ADC�?�VDDA�?�ノイズを供給�?�る�?��?変�?��?�れ�?�データ�?�ノイズ�?�混入�?��?��?�。VDDA�?�ノイズフリー電�?を供給�?��?��?�。VDDA�?�VDD�?��?��?�電�?を使用�?�る必�?�?��?�る�?��?��?��?�を教�?��?��??�?��?��?�。Eng: If there is noise in the power supply to VDD and it is used to provide noise to the VDDA of the ADC, the converted data will be noisy. I want to supply noise-free power to VDDA. Do I need the VDDA to use the same power supply as the VDD?

Why is the input voltage of the X-NUCLEO-IHM03A1 dev board limited to 50V? Looking at the schematic and BOM I don't see any reason why it shouldn't be 85V. This question has been asked before but didn't receive a clear answer.

Dear team, can you check whehter TSCA and CP65 certificate available for MPN STMPS2161STR AND TL084IDT? thank youTSCA:Toxic Substances Control ActCP65： California Proposition 65

I am using EVAL-9963EFrom datasheet, when SPIEN pin of L9963E is connected to VCOM and R43, R46, R57, R138, R139, R140, R141, R143 are assembled, L9963E is now ready to use direct SPI (normal SPI without isolation). 1 MCU communicates with 1 L9963E on same board.As I send Configure IDs command from GUI, I did not receive any ACK (ISO mode works properly)When I tried to send a single read at address 0x1 from GUI, I received  0xC1FCFFFD08 which is CRC error frameCould you guide me how to use SPI mode to read from and write to register data of L9963 (which is now on the same board with MCU)? It seems that there is no user guide on that.And it is said in datasheet that "In case Master Unit has port H disabled (isotx_en_h = 0), trying to communicate with a Slave unit will return the corresponding Master’s register content; " and"It forwards commands only if they are addressing Slave units. Any command addressed to the Master unit is not propagated on the ISOH port; "--> th

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Dear Support,Good day,Kindly help to check and advise if the topside marking is valid and just normal.Please refer to attached photo, the two devices marking is faded.

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I need to make a Resonant Inverter, with AC output.Application is an AC power supplyTopology: LLC or otherInput: 12V to 24V DCNo DC output100 kHz100W0 to 20A continuousconstant voltage0 to 5VInductive load for galvanic isolationpure sinesoft-switched1/2 bridge or 1/4 bridgeOur load uses AC directly from the secondary of the load-trafo. We will not rectify or filter the secondary of the load-trafo. What ST parts are recommended? Seeking FET's, gate driver, controller, etcL6565 ?

I have been using the PWD13F60 dual H Bridge IC which is a great device but the EVALPWD13F60 Eval board is limited to 2A_rms even though the IC is good for 8A DC due to thermal limitations of the eval board which is a shame as I really need to get about 4A. So i was hoping to jump on to an STEVAL-IHM023V3 using just two channels but I see it wants a minium 125V DC power line. My current power supply is limited to 120V DC which matches other requirements of my project. I was wondering where the 125VDC minimum requirment comes from on the EVALPWD13F60. I scanned the documentation and nothing obvious jumped out at me. Could I run oin 120V DC ?

From documentation I can not figure if it is possible. Do you have any configuration of resistors(R4,R5,R6) in order to modify Vuvp and Veoc?

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