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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
  • 9192 Views
  • 19 replies
  • 18 kudos

Resolved! Viper319 Not performing for load more than 4W

I have attached the Actual Circuit as image. We have gone for flybuck topoogy.Input VBus = 335VDC. We require 15VDC, 600mA for Load Requirements. (9W Least Requirement)As per datasheet VIPER319HDTR is capable of delivering 19W. We designed the PCB Bo...

Rajesh_J by • Associate
  • 975 Views
  • 1 replies
  • 0 kudos

Issue with STC3117 Fuel Gauge Resetting Repeatedly

 Hi,I am using the STC3117 fuel gauge, but my IC keeps resetting repeatedly, so I am not getting any voltage or current readings. However, I am getting the correct values for other registers, such as the device ID and temperature.I tried to debug thi...

tarang by • Associate
  • 313 Views
  • 0 replies
  • 0 kudos

L4986A

I am using Simlis to carry out a simulation of AN5797 1KW bridgeless CCM-PFC pre-regulator based on the L4986A IC, I have built up the circuit, but it does not simulate and produces an error The voltage and currents of this circuit cannot be uniquely...

L6599AD latched shutdown

Hi.I am using the L6599AD without PFC.When a latched shutdown occurs, the reset condition requires VCC power to fall below UVLO.I'm using an offline high voltage buck ic to make 15V for the VCC power.The problem here is that the L6599AD has a small c...

JK5 by • Associate II
  • 373 Views
  • 1 replies
  • 0 kudos

STC3100, can't write register (no last ACK)

Hi,I'm facing some really weird problem with STC3100. After powerup I try to enable operating mode by writing 0x10 value (GG_RUN bit) to register REG_MODE at address 0x00. I2C address is 0x70 as default. STC3100 sends ACK for I2C address, also for re...

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EDust by • Associate
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  • 5 replies
  • 0 kudos

PSI5

Hi everyone, I am trying to establish communication between the L9663 and an airbag sensor using PSI5. However, the behavior I observe on the oscilloscope is shown in the picture, with ramps instead of clear pulses. Since PSI5 uses the same wire to s...

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