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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  • 19 replies
  • 18 kudos

Output current limit for RHFL6000A

Hi All, In this LDO the output current limit can be set by a Rshort resistor from pin 8 to V_in.Is there any formula for the calculation of such a resistor? On the Figure 19 in the datasheet there is a plot showing Short-circuit current vs RSHORT for...

ozf by Associate
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  • 1 replies
  • 0 kudos

power output is like AC in stpm34

I use stpm34. stpm34 reads voltage and current as rms. but stpm34 read active/reactive power like ac.I think stpm34 should read them like dc. is it right? I wanna dc value of active/reactive power.Could you help me? 

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Resolved! STBC15 wiring of open drain output pins

Hello, I see there are two open drain output pins on the STBC15: CHGINOK and PG. If I don’t need to read the CHGINOK and PG status, can they either be left floating or connected to ground, without needing to add an external pullup? Please confirm if ...

EC.3 by Associate III
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  • 1 replies
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What is the difference between the LM211 and LM311

The datasheet says that LM211D/DT has a temperature of -40 °C, +105 °C and output to negative supply voltage 50VLM311D/DT has a temperature of -0 °C, +70 °C and output to negative supply voltage 40VIs there any differences in performance or electrica...

jgananam by Associate
  • 523 Views
  • 1 replies
  • 0 kudos

Resolved! TCPP03-M20 using Mosfet driver outputs for logic control

Hello,I'm using TCPP03 for a DRP solution. For my design it would be good to use the Mosfet drivers for controlling a logic input for further power control instead of using Mosfets. Is it possible to use the gatedrivers with the SRC-pins connected to...

mikeho by Associate
  • 795 Views
  • 1 replies
  • 1 kudos

steval-L99615C GUI not working

Connected discovery board to COM port. Using Demo bin file, have been able to view data with serial monitor. When I connect using Unicleo GUI 1.25.1.11665, COM port message states successfully opened. Unable to view any other data. Firmware: Expansio...

KWarr.1 by Associate II
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  • 2 replies
  • 0 kudos

Resolved! L6924D Battery charger NTC selection

I require assistance with the design of the battery charger schematics involving the L6924D. Referring to the documentation (https://www.st.com/resource/en/datasheet/l6924d.pdf), the pull-up resistor R3 is 1K, and the NTC tuning resistor R9 is 470 oh...

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Levan by Associate III
  • 1279 Views
  • 2 replies
  • 1 kudos

STSPIN840 OUTX1 and OUTX2 signals

Hi,We have PCB where STSPIN840 is connected to PIC32MK1024MCF100 and DC motors connected to respective OUTX pins. Getting PWM,PH(high),EN(high) when we are checking signals in CRO but OUTX1,OUTX2 both as 3.3v or one 3.3v another 12v sometimes. Accord...

KTH by Associate
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  • 0 kudos