Power management

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

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SPV1040 IC Burns

@TDK , @Peter BENSCH  we are facing SPV1040 IC failure (burns) in the field, after around 3 months of installation, attached schematic and our solar Panel speciation Voc:4.55V, Vm:3.85V, ISC:1026mA, Im:950mA.Battery spec - 9000mAh, 4.2V Lithium ion.

Resolved! STWBC86 use for bi-directional communication

STWBC86 TX can be use for bi-directional communication, when rx send PP-packet as QI defined, STWBC86 update to 1251 version and use GUI to read i2c reg address 0x0100, and it can read RX PP-packet. https://github.com/STwirelesscharger/STSW-WPSTUDIO/...

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willzhou by ST Employee
  • 6905 Views
  • 8 replies
  • 7 kudos

MASTERGAN1TR failing and smoking at 100VDC

We are using 2 MASTERGAN1TR to drive current across an inductor.We are seeing damage on the body of the chip nearest the low side ground connection with a PWM Frequency of 250KHz and a 12% duty cycle.Before the chip fully fails the current decreases ...

bwefers by Associate II
  • 251 Views
  • 0 replies
  • 0 kudos

VNQ9080 to controll auxiliary lights of my motorcycle

Hi all. I've made a dedicated PCB that should control auxiliary lights of my motorcycle. I use CANBUS information by MCP2515 module and using Arduino Nano digital output pins to directly control input pins of VNQ9080. I assembled all elements on the ...

stojank by Associate
  • 492 Views
  • 1 replies
  • 0 kudos

powerStep01 Active Position Tracking

Is there a way to read the motor position while it's moving, such as with a command like "run," "goto," "move," or any other command from the Powerstep01? Does the motor need to be stopped for the motor position to be read correctly? Currently, when ...

Resolved! Mystery IC number ?

Hello allI don't know if this is the right sub-forum, I chose the one that seemed the closest.I've been spending a bunch of time trying to find the part number of a seemingly simple IC, but just hitting walls. I've Googled using the manufacturers nam...

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PLew by Associate II
  • 885 Views
  • 6 replies
  • 2 kudos

Precision voltage reference with low 1/f noise

Hi all, I am looking for two voltage references to produce two rails ( positive and negative) with low frequency noise.The voltage reference does not need to have a tight output voltage accuracy and long term precision. It needs to be stable over a 1...

Immagine 2025-02-05 123152.jpg
Tommino by Senior
  • 5334 Views
  • 7 replies
  • 0 kudos