Power management

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

cancel
Showing results for 
Search instead for 
Did you mean: 

Forum Posts

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    

willzhou_0-1717985741931.png
willzhou by ST Employee
  • 13459 Views
  • 23 replies
  • 31 kudos

L4946A gives good PFC in discontinuous mode?

Hi,We wish to do a Boost PFC with L4986A and a  30uH inductor.Power is 2200W and Mains is 85-265VAC.When the mains is at 240VAC,  the inductor current would be discontinuous for some 80% of the mains half cycle.Is this OK?Will the L4986A be able to c...

amass.9 by Associate II
  • 26 Views
  • 0 replies
  • 0 kudos

VNF1048F & VNF1248F SPI Communication without VS

Hello, We are developing a design around VNF1048F & VNF1248F products.  We are considering a multichannel design with different output settings. In a multichannel design, naturally we are expecting to have control and monitoring capability of individ...

zekasi by Visitor
  • 27 Views
  • 0 replies
  • 0 kudos

VNF1248F & VNF1048F Functional Safety

Hello,We are developing a design around VNF1048F & VNF1248F products. From the other community posts, we learned that VNF1048F has ASIL - B for functional safety rating.We would like to confirm this information, and we also would like to know if VNF1...

zekasi by Visitor
  • 31 Views
  • 0 replies
  • 0 kudos

LD1117 Input & Output Capacitor requirements

I am currently designing a circuit using the LD1117S50CTR.In the recommended circuit in the datasheet, Cin = 100 nF and Cout = 10 µF are specified.For an LDO, I believe Cout is critical, while Cin is not as important.Therefore, I am considering using...

Matsuura by Associate II
  • 82 Views
  • 6 replies
  • 1 kudos

powerSTEP01 advanced current control parameters

Hello,are there any example parameters available to drive a stepper motor fast in current mode? I am using the EVLPOWERSTEP01 evaluation board with different stepper motors, e.g. Oriental PK267JDA (3.4V, 2.8A, 1.2Ohm) and Nanotec ST6018K2008 (4.8V, 2...

STWBC2-HP and STWLC99 with STSC protocol

I am developing a solution using a STWBC2-HP tx running from a 24VDC supply to drive a STWLC99 rx and need to use the STSC protocol to achieve 50~100W. This is for bespoke power transfer rather than a conventional charger. I am basing the design on t...

NickA by Associate II
  • 94 Views
  • 4 replies
  • 0 kudos

L6494LDTR

Hello I am using the L6494(14PIN) as a driver for a high and low side FET in a half bridge arrangement. My DC volts can be anything from 120Vdc to 220Vdc. and current up to 17AIs there anyway to determine the breakdown mechanism if I do not momentari...

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

EVLVIPGAN65DF radiated EMI

EVLVIPGAN65DF application note states that the provided reference design is compliant with IEC55022 Class B conducted EMI. How about radiated EMI? Is there any measurement in this regard? 

Gaston by Senior
  • 190 Views
  • 4 replies
  • 0 kudos

Resolved! L6982CDR application problem.

Hi,We're encountering an issue with the L6982CDR buck converter in our application. Here's the detailed scenario: Configuation: We're using it to convert a 24V input to a 5V output to power the board. Load: The 5V output supplies a load current of ap...

PL3_1-1760668895581.png PL3_0-1760668869816.png
PL3 by Associate II
  • 602 Views
  • 12 replies
  • 1 kudos