Sign Up

Sign Up to our social questions and Answers Engine to ask questions, answer people's questions, and connect with other people.

Have an account? Sign In
Continue with Facebook
Continue with Google
or use

What is the capital of Egypt? ( Cairo )

Have an account? Sign In Now

Sign In

Login to our social questions & Answers Engine to ask questions answer people's questions & connect with other people.

Sign Up Here
Continue with Facebook
Continue with Google
or use

What is the capital of Egypt? ( Cairo )

Forgot Password?

Don't have account, Sign Up Here

Forgot Password

Volt.Tech

Lost your password? Please enter your email address. You will receive a link and will create a new password via email.

Have an account? Sign In Now

You must login to ask question.

Continue with Facebook
Continue with Google
or use

What is the capital of Egypt? ( Cairo )

Forgot Password?

Need An Account, Sign Up Here

Please briefly explain why you feel this question should be reported.

Please briefly explain why you feel this answer should be reported.

Please briefly explain why you feel this user should be reported.

volt.tech Logo volt.tech Logo
Sign InSign Up

volt.tech

volt.tech Navigation

  • Home
  • About Us
  • Contact Us
Search
Ask A Question

Mobile menu

Close
Ask a Question
  • Tags
  • Category
    • Amplifiers
    • Passives & Protection
    • Clocks & Timing
    • Diodes & Rectifiers
    • FPGAs & PLDs
    • Interface ICs & Transceivers
    • LEDs & Optoelectronics
    • Memories
    • MEMS & Sensors
    • Microcontroller
    • Power Management
    • RF & Microwave
    • Security & Smart Card
    • Motor Drivers
    • Wireless Connectivity
  • Groups
  • Add group
  • Badges
  • Help
  • Home
  • About Us
  • Contact Us
What's your question?
  • Recent Questions
  • Questions For You
  • Most Answered
  • Answers
  • No Answers
  • Most Visited
  • Most Voted
  • Random
  1. Asked: March 23, 2023In: Power Management

    Can POL devices work without a bleeder resistor on the output?

    ashishgawade
    Added an answer on March 24, 2023 at 9:55 am

    Hello@vikas, It's always recommended to use a bleeder of 100 ohms. Vout of the part has an offset of around 250mV due to a leakage in no-load condition. The 100-ohm bleeder will pull it down. If there's no issue with 250mV offset the part can be used without bleeder also. If there's a concern with eRead more

    Hellovikas Nagpal,

    It’s always recommended to use a bleeder of 100 ohms.

    Vout of the part has an offset of around 250mV due to a leakage in no-load condition.

    The 100-ohm bleeder will pull it down.

    If there’s no issue with 250mV offset the part can be used without bleeder also.

    If there’s a concern with effectiveness while using a 100-ohm bleeder also a 500-ohm bleeder can be used. 500-ohm bleeder will have an offset of 65mV.

    Regards,

    Ashish Gawade

    See less
    • 0
    • Share
      Share
      • Share on Facebook
      • Share on Twitter
      • Share on LinkedIn
      • Share on WhatsApp
  2. Asked: March 21, 2023In: Power Management

    SMPS Necessary or Not?

    vikas Nagpal
    Added an answer on March 22, 2023 at 10:30 am

    Hello, The SMPS reduces the power loss when VDD is regulated down to the core voltage with an internal LDO. The SMPS, thus, increases energy effectiveness. However, you're better off with the LDO version because you have further GPIOs and one lower coil and capacitor on the BOM, If you do not need tRead more

    Hello,

    The SMPS reduces the power loss when VDD is regulated down to the core voltage with an internal LDO. The SMPS, thus, increases energy effectiveness.

    However, you’re better off with the LDO version because you have further GPIOs and one lower coil and capacitor on the BOM, If you do not need to save every milliwatt.

    Does it answer your question?

    Regards

    See less
    • 0
    • Share
      Share
      • Share on Facebook
      • Share on Twitter
      • Share on LinkedIn
      • Share on WhatsApp
  3. Asked: March 18, 2023In: Wireless Connectivity

    How to do Binary Core Programming?

    nidhi singh
    Added an answer on March 20, 2023 at 10:45 am

    Hello Ashish, No, sorry, that kind of setup is physically impossible on current ESP chips as the two cores( and the main memory, for that matter) are in the same timer domain. Thank you  

    Hello Ashish,

    No, sorry, that kind of setup is physically impossible on current ESP chips as the two cores( and the main memory, for that matter) are in the same timer domain.

    Thank you

     

    See less
    • 0
    • Share
      Share
      • Share on Facebook
      • Share on Twitter
      • Share on LinkedIn
      • Share on WhatsApp
  4. Asked: March 16, 2023In: Microcontroller

    How to use RA2A1 MCU at 5V Power Supply?

    vikas Nagpal
    Added an answer on March 17, 2023 at 10:28 am

    Hello, None RA2 family can run from 1.6 V to 5V. The data sheet & hardware user manual that can be found on the Renesas web give further detail. Thank You

    Hello, None RA2 family can run from 1.6 V to 5V.

    The data sheet & hardware user manual that can be found on the Renesas web give further detail.

    Thank You

    See less
    • 0
    • Share
      Share
      • Share on Facebook
      • Share on Twitter
      • Share on LinkedIn
      • Share on WhatsApp
  5. Asked: March 9, 2023In: Microcontroller

    TLE987X Emulated EEPROM?

    Alex thomas
    Added an answer on March 15, 2023 at 9:55 am

    Hi @nidhi, As the sample code is for TLE9879QXA40 and you're applying TLE9872QTW40 so please make the following changes- Please go to Options for Target in Keil also- 1) Go to the Device menu and add your device TLE9872QTW40 also uncheck the BF stepping to make the code compatible with your device.Read more

    Hi nidhi singh,

    As the sample code is for TLE9879QXA40 and you’re applying TLE9872QTW40 so please make the following changes-

    Please go to Options for Target in Keil also-

    1) Go to the Device menu and add your device TLE9872QTW40 also uncheck the BF stepping to make the code compatible with your device.

    Go to Debug menu-> Settings-> Flash Download and confirm if TLE9872QTW40 with 252k size is selected.

    2) Now open the config wizard, go to PMU-> Power Saving Modes, select Sleep mode, and save it.

    3) Rebuild your project and check page 0 with address 0x1103F000.

    Best Regards
    Alex Thomas

    See less
    • 0
    • Share
      Share
      • Share on Facebook
      • Share on Twitter
      • Share on LinkedIn
      • Share on WhatsApp
  6. Asked: March 6, 2023In: LEDs & Optoelectronics

    STM32WB55 IR DA Hardware Setup?

    Julian White
    Added an answer on March 7, 2023 at 10:27 am

    Hello, IrDA has hardly been used for a long time, which is also marked in discontinued IrDA transceivers. However, since basically everything except the TIA and visual factors is included in the STM32 IrDA SIR ENDEC, it's possible to recreate IrDA with an IR LED plus driver transistor and an IR photRead more

    Hello,

    IrDA has hardly been used for a long time, which is also marked in discontinued IrDA transceivers. However, since basically everything except the TIA and visual factors is included in the STM32 IrDA SIR ENDEC, it’s possible to recreate IrDA with

    • an IR LED plus driver transistor and
    • an IR photodiode plus TIA.

    RX and TX are switched to the IrDA function so that the LED driver and TIA can be connected directly.

    Regards

    Julian White

    See less
    • 0
    • Share
      Share
      • Share on Facebook
      • Share on Twitter
      • Share on LinkedIn
      • Share on WhatsApp
  7. Asked: March 3, 2023In: Wireless Connectivity

    ESP32-C3 first programming via USB?

    Julian White
    Added an answer on March 4, 2023 at 10:04 am

    It's not required per se, but it's helpful. The issue is that an empty ESP32-C3 usually will try to boot from flash and fail. After some attempts, the RTC watchdog will protest in to reset the entire chip. This is useful as it may clear any transient error that would stop a properly flashed chip froRead more

    It’s not required per se, but it’s helpful. The issue is that an empty ESP32-C3 usually will try to boot from flash and fail. After some attempts, the RTC watchdog will protest in to reset the entire chip. This is useful as it may clear any transient error that would stop a properly flashed chip from booting. However, it also resets the USB-serial- JTAG device, causing the OS tore-enumerate it. Going into download mode (either by pulling low GPIO9 or by successfully connecting using the flashing app) stops that from passing, allowing the chip to be flashed as normal.

    Not having GPIO9 accessible will generally work (depending on how fast your OS is in detecting USB devices) but may need several tries in flashing for the timing to be right.

    Another thing is that without forcing the chip into download mode, for old performances of the esp tool, a watchdog will keep running during the flashing process, which may interrupt flashing if the firmware is fairly large. Using a newer version of the esp tool should fix that, however.)

    See less
    • 0
    • Share
      Share
      • Share on Facebook
      • Share on Twitter
      • Share on LinkedIn
      • Share on WhatsApp
  8. Asked: March 1, 2023In: Microcontroller

    Is switching in MCUBoot is Atomic?

    nidhi singh
    Added an answer on March 2, 2023 at 10:37 am

    Hi Alex, The exchange mode for MCU boot uses the scratch area as an intermediate area in order to complete the exchange of the 2 images. The process of switching is done like below. However, then no information is lost, If a power failure occurs. The scratch area must be large enough to store the laRead more

    Hi Alex,

    The exchange mode for MCU boot uses the scratch area as an intermediate area in order to complete the exchange of the 2 images. The process of switching is done like below. However, then no information is lost, If a power failure occurs.

    The scratch area must be large enough to store the largest sector that’s going to be shifted. For RA2 MCUs, the scratch area should be set up to 0x800 when exchange mode is used.

    Regards

    Nidhi Singh

    See less
    • 0
    • Share
      Share
      • Share on Facebook
      • Share on Twitter
      • Share on LinkedIn
      • Share on WhatsApp
  9. Asked: February 24, 2023In: Power Management

    Low Frequency DC to AC Transformer Design?

    Julian White
    Added an answer on February 28, 2023 at 10:04 am

    Hi, Thank you for posting on the Volt.Tech community. Can you please share a detailed block diagram of the Inverter system? Is it the same as the below-attached block? This operation note from Infineon depicts a sample figure for a low-frequency converter. Regards, Julian  

    Hi,

    Thank you for posting on the Volt.Tech community.

    Can you please share a detailed block diagram of the Inverter system?

    Is it the same as the below-attached block?


    This operation note from Infineon depicts a sample figure for a low-frequency converter.

    Regards,

    Julian

     

    See less
    • 0
    • Share
      Share
      • Share on Facebook
      • Share on Twitter
      • Share on LinkedIn
      • Share on WhatsApp
  10. Asked: February 22, 2023In: Power Management

    What’s the SKU for LD2981ABM50TR?

    Best Answer
    nidhi singh
    Added an answer on February 23, 2023 at 10:27 am

    Hello, The labeling looks ok F130 = LD2981ABM30TR F133 = LD2981ABM33TR F150 = LD2981ABM50TR So there's a good chance that the LD2981ABM50TR is similar to these devices in SOT23- 5L package. However, please label this thread as answered by selecting Select as best, as also explained here, If the probRead more

    Hello,

    The labeling looks ok

    F130 = LD2981ABM30TR
    F133 = LD2981ABM33TR
    F150 = LD2981ABM50TR
    So there’s a good chance that the LD2981ABM50TR is similar to these devices in SOT23- 5L package.

    However, please label this thread as answered by selecting Select as best, as also explained here, If the problem is answered. This will help other users find that answer faster.

    Regards

    See less
    • 1
    • Share
      Share
      • Share on Facebook
      • Share on Twitter
      • Share on LinkedIn
      • Share on WhatsApp
1 2 3 … 34

Sidebar

Ask A Question

Stats

  • Questions 393
  • Answers 379
  • Comments 0
  • Best Answers 9
  • Popular
  • Answers
  • Manoj

    Configuration using .dp vision in Infineon XDPL series IC .

    • 5 Answers
  • Linto

    Renesas RL78/G14 ADC interface code

    • 4 Answers
  • ashishgawade
    ashishgawade added an answer Hello@vikas, It's always recommended to use a bleeder of 100 ohms. Vout of the part has an offset… March 24, 2023 at 9:55 am
  • vikas Nagpal
    vikas Nagpal added an answer Hello, The SMPS reduces the power loss when VDD is… March 22, 2023 at 10:30 am
  • nidhi singh
    nidhi singh added an answer Hello Ashish, No, sorry, that kind of setup is physically… March 20, 2023 at 10:45 am
  • vikas Nagpal
    vikas Nagpal added an answer Hello, None RA2 family can run from 1.6 V to… March 17, 2023 at 10:28 am
  • Alex thomas
    Alex thomas added an answer Hi @nidhi, As the sample code is for TLE9879QXA40 and… March 15, 2023 at 9:55 am

Users

test29858861

test29858861

  • 0 Questions
  • 0 Answers
test7508779

test7508779

  • 0 Questions
  • 0 Answers
test18048799

test18048799

  • 0 Questions
  • 0 Answers

Explore

  • Tags
  • Category
    • Amplifiers
    • Passives & Protection
    • Clocks & Timing
    • Diodes & Rectifiers
    • FPGAs & PLDs
    • Interface ICs & Transceivers
    • LEDs & Optoelectronics
    • Memories
    • MEMS & Sensors
    • Microcontroller
    • Power Management
    • RF & Microwave
    • Security & Smart Card
    • Motor Drivers
    • Wireless Connectivity
  • Groups
  • Add group
  • Badges
  • Help

Footer

volt.tech

Volt.Tech

Find your spark

About Us

  • About Us
  • Contact Us
  • Groups

Legal Stuff

  • Privacy Policy
  • Faqs

Follow

© 2022 volt.tech. All Rights Reserved
With Love by volt.tech.