Power management

I would like to couple the STEVAL-ISC004V1 (USB PD source) with the STEVAL-ISC005V1 (USB PD sink) like in this demonstration video https://youtu.be/Sld2pj-_ho0?t=100 My question is how you can choose which Vbus voltage level will be negotiated.

In the video, it appears that the boards cycle automatically through the different PDO's (first the LED at the 9V PDO lights up, then the LED at the 15V PDO and so on. Is this default?Let's say that I connect an electric razor to the 15V PDO at the s...

How to switch form stop1 mode to shutdown mode of stm32l4

Hello,We are using low power modes of the stm32l4,i.e. sleep1, stop1 and shutdown modes.Requesting you to resolve the below queries,Before entering into each mode, which pre-configuration required?How to switch from sleep1 to stop1 and stop1 to shutd...

Need alternative package for STLED524 part

I want to know is there any alternative package for STLED524 part which is LED drive it is 0.4mm pitch BGA using this the design may go in to HDI, hence to avoid this can you suggest/have similar functionality any other package IC

The embedded opamp in stm32 foc application working principal

To all expert, I have some confusion about the working mechanism about the current sensing mechanism of the embedded pga. In my sense, foc required at least two sampling of three phase to reconstruct the Idq diagram. With two opamp, I guess it inter...

STPM line and neutral connection

I have used STPM34 In my design. I am measuring voltage and current of single phase supply. Line is connected Pin number 9 of STPM34 and neutral is connected with circuit ground via ferrite bead. check R23 in schematic. I have attached schematicMy...

Hello. I want to use thyristors in electrical Drives (rectifier part). Will there be a problem, if thyristors have been triggered by DC voltage ( that's means : gate's thyristor is always on-state with dc voltage(at reverse bias and forward bias)).

I created the circuit as per simulation in eDesignSuite but unable to get the desired result as its described in the circuit that Iout will be 3A but i am unable to withdraw even 200mA. kinldy help?

BTA16 and ACST10 which is better AC switch for AC Phase cut application?

Hello,We want to design best AC Phase-cut circuit. we have design BTA16 based AC Phase-cut but flickering issue occurred often and also design new AC Phase-Cut circuit with ACST10 which work fine.My query is that which is best AC switch BTA16 or ACST...

¿How to identify authentic TRIAC (BTA41)?

Found a seller whom offers BTA41-600B power TRIAC at lower price than expected, altho they asure those are authentic ​ST semiconductors, i can't permit unexpected behivor from this component for my application. ¿How could I ensure it comes indeed fro...

PM8804 Design Help

I'm looking to use a PM8804 along with PM8805 to produce a 24V, 2.5A POE PD. Are there any application notes available on how to design and calculate components for a forward active clamp converter similar to the schematic in the datasheet. I've look...