1. Younes Thabet

    Does anyone come across this semiconductor manufacturer?

    Hello, I am trying to identify this IC (see attached image), the part number is clear enough to know the chip but I couldn't figure out which chip manufacturer from the logo on the IC! The PN is AHCT244 which is an octal buffer/driver. One more question, why there are some parts that are...
  2. flash23131

    DIY BLDC controller circuit

    Hello! I want to make an electronic circuit to control a 36V BLDC motor (three phases, hall sensored). I made three half-bridges (like the ones in the picture) for the three connection wires from the motor. I control the bridge with the help of an arduino through the IN_LO and IN_HO pins. At the...
  3. Ashkandodol

    Led panel lvds cable

    Hi i want to reuse a led screen panle I have a lvds cable but the cable is not designed for this panel. And i have a lvds driver for this screen panel Pls some one tell me which one cable need to be connect Panel is lvds 1ch 6 bit 30 pin And the driver is supporting 1ch This is driver pins This...
  4. G

    Graphics Processing Units and their communication with operating program

    Hello, I want to understand something. I want to run a ".efi" program on a personal computer with full support of GPU that has openGL support. GPUs need driver to work but their drivers are not open source(so not compilable) driver so you can benefit from them only on Linux, Mac or Windows. If...
  5. xThornx

    Stepper Motor Design Parameters

    Hello, I'm trying to redesign the electronics for a camera's stepper motor controlled pan/tilt/zoom/focus features. The product is from China and there is no documentation available. I've managed to determine what parts were originally used to control the motors but there are no datasheets...
  6. MrsssSu

    PNP and NPN recommendation for mosfet driver

    Dear readers, Above is taken from here . Can anyone recommend transistor Q1 (npn) and Q2 (pnp) to me for driving a mosfet at a 100kHz or higher. What are some of the common best fast switching Q1 and Q2 that can handle high current and high frequency PWM at its base ? Thank you :)
  7. Adamelli

    Do internal-FET stepper motor drivers similar to DVR8825 with higher current exist?

    The DVR8825 has 1.5 A/phase. The form factor is small (0.6" x 0.8"). However, for the required current, the chip overheats at 24 V. (I am told I need to design for 24 V supply.) It seems anything around 4 A has a large form factor (e.g., DVR6575 is about 2" x 4"). They also cost significantly...
  8. Luiz Fernando Vieira

    LED Driver - Luminaire still lights up

    Guys I'm having difficulties regarding a light drive, I'll report the problem and what I did to try to solve this situation. The light driver is being placed in an LED fixture, when you clear a phase (using interrupted or forcing a phase out), the LED is lit, it stays lit very dimly. And when...
  9. U

    Help with circuit of laser diode driver

    Hello. I restored a driver circuit for the laser diode using driver's PCB and Diptrace. Laser is Thorlabs S1FC635. I have some questions about circuit. I attached some pictures of this circuit. 1)I would like to understand role of the U2.3. "U2.3In-" is signal from drain of Q2.2. When I press...
  10. W

    Microdevt - Interrupt-based Drivers

    Hi there! Does anybody known how to code an interrupt driven driver using Microdevt toolkit (www.kw-net.com) ? I am trying to develop a simple driver on my atmega328 that enqueues a bitstream from an other uC. The bitstream is read on an input pin and then processed if a certain amount of data...
  11. ashokraj

    Driver vs HAL in NRF52

    I am budding Embedded Engineer, currently, I would like to learn how to program nrf52dk. While I am exploring info center, Peripheral examples I have noticed that most of the peripherals has two section: 1. Driver. 2. HAL. My questions are the following: 1. What is the difference between...
  12. T

    DC motor current limiter

    Background: I'm working with an existing motor+driver board with Vin being supplied by a 4.2V LiPo -> TP4056 Charger Protection Board -> Boost Voltage Regulator. I've also got another subcircuit attached to the end of the TP4056 module through another voltage regulator and diode that powers a...
  13. G

    Increasing Mosfet Driver Output current

    Hello everyone, So I'll get to the point, I have parallel IGBTs(G60N100BNTD) and running them in a Half bridge setup, with an isolation transformer. The problem is My Driver (UCC27425) ìs overheating, when I take a look at the wave forms the Igbt's Capacitive gate is around 6nf each, which...
  14. __Pai__

    What is the need for buffer or amplifier for ADC?

    This may be novice question. I am understanding SAR ADC specification for modeling perspective. In the mean time I was following analog devices Driving SAR ADC. In general what the necessity for a driver when it matches T acq and T cov of the selected ADC datasheet? What else test situation or...
  15. eliasklk_04

    XML T6 LED DRIVER MODIFICATION

    Good night. I bought this flashlight for my bike: https://www.ebay.es/itm/Luces-Bicicleta-Luz-10000LM-Impermeable-3XT6-LED/292872854958?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649 But the light that comes out seems very little to me. I think it has more potential. Could I modify...
  16. P

    Looking for Suggestions on Driving 600+ LEDs in Asymmetric Matrix

    I'm in the process of designing an mono-color LED matrix that is basically in the shape of a horseshoe/rainbow, with the ability to control individual LEDs, preferably with an Arduino, as I'm familiar with them. As of now, due to space constraints, I'm using 0603 LEDs, but that eliminates the...
Top