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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
  • 10679 Views
  • 22 replies
  • 23 kudos

STC3115 Vcc Pin Getting ~0.7V In Power OFF

Hi Team,I'm using STC3115AIQT on one of my projects for a 3.7V Li-Ion battery monitoring. I'm powering the IC by supplying an external 3.3V on the VCC pin (From an LDO) of the IC and giving my battery voltage input on the VIN pin.During the normal op...

Resolved! Backup power

Hello, my device will work in a car and I need to arrange power for the RTC. Is the H750 processor used, is the diagram in the screenshot suitable or are there better technological solutions?

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Denys_T by • Associate III
  • 1141 Views
  • 5 replies
  • 1 kudos

Isolation between NC pin and Cathode on STPSC20H12-Y

We have an application using an STPSC20H12-Y silicon carbide power Schottky diode in the D²PAK HV package (full MPN STPSC20H12G2Y-TR).  This diode has a No Connect pin that we would like to tie to the Anode pin to simplify board layout and improve th...

Pete_ by • Associate
  • 471 Views
  • 0 replies
  • 0 kudos

Bias voltage on ST1L08PUR

Little confused by the spec of a max 90mV dropout while the Bias voltage needs to be >=1.5V higher than the regulated voltage.So this regulator is only good in the case where that higher voltage is already present in the system?https://www.st.com/con...

markn by • Associate
  • 514 Views
  • 1 replies
  • 0 kudos

How to tune FOD parameters on the STWBC IC.

I'm using the STWBC as the IC to control the transmitter of a wireless battery charger. So far the battery is charging fine but I am unable to get foreign object detection working. I am adjusting the FOD parameters using the STWBC GUI application. Is...

JReid.1 by • Associate
  • 1699 Views
  • 3 replies
  • 2 kudos

STM32F103RCT6TR

Hi, I need a inform for given part number "STM32F103RCT6TR". Kindly tell me. which is the interrupt pin for given part number.

murali by • Associate III
  • 508 Views
  • 1 replies
  • 0 kudos

Harmonic Distortion measurement

Hello,We are using STPM33 IC in our design. I want to measure Harmonic Distortion. Can any one suggest me how to measure Harmonic Distortion?Regards,Kadam

kadam by • Associate II
  • 704 Views
  • 1 replies
  • 0 kudos

Design of ZCD TRIAC circuit

I'm not sure if I've designed the circuit for PWM power control of the hot plate correctly. The PWM output is a 3.3V MCU. I assume the PWM period 200 ms. The hot plate is 1000W, 220V, 50Hz.

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DRich.4 by • Associate II
  • 590 Views
  • 0 replies
  • 0 kudos

VND9012AJTR/VND9016AJTR switch issue

Hi all, I would like to ask you about VND9012AJTR/VND9016AJTR.1) When INPUT1 goes high (+5V) through 1k resistor, OUTPUT1 goes to +12V, OUTPUT0 goes to +2V. The same situation is with INPUT0 (=>OUTPUT0 goes to +12V, OUTPUT1 goes to +2V)Why? I want to...

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