Questions tagged [driver]

A chip or a circuit that sends a signal with more current or voltage, or over longer distances.

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33883 H-Bridge Driver IC Intermittent Switching

I am using a NXP (freescale) 33883 H-Bridge gate driver IC to drive a simple H4 bridge circuit which is connected identically to that in the application schematic in the datasheet: I am switching at ...
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1answer
50 views

What is this UP 4B2 smd chip in dfn8 case?

Acts probably as a driver to power the motor. There a two of this kind on the board. One burned, the train drives only in one direction.
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H bridge for peltier heating and cooling

I am testing DRV8840 circuit in my setup as a 12V, 3amp peltier controller. And there are 3 temperature set points : 25, 30, 37 celcius. Hardware configuration done so far as follows: Trial 1 : ...
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108 views

How do I drive this display?

I would like to know how to drive this little e-Ink display. The company supplies a demo kit and a sort of "adaptor circuit" (basically a breakout board with a few capacitors, which allows one to use ...
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1answer
94 views

BTS7710G driver voltage drop

I'm trying to use a BTS7710G as a h-bridge to swap voltage on load. this is from datasheet: what i'm doing is turning on IH2 and IL1 pins at once . and another time turning on IH1 and IL2 to swap ...
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75 views

Finding a suitable ADC driver (SE to DIFF VCM+-0.5V)

ADC:ADC3424 The input is specified to be differential with each input swinging symmetrically around +-0.5V (i.e. 2Vpp with 1V input and G=1). I can't seem to find a suitable ADC driver for this. TI ...
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2answers
101 views

Is it safe to limit current and increase voltage above VF for LED

I am designing high power LED Driver. I want to know that if I limit output current as required by a specific LED and my voltage is significantly greater than VF will it be safe for the LED extended ...
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306 views

High speed, TTL compatible, high-side switch IC

I like full integrated automotive high-side switches, such as the ISP452. I like them because of their simplicity, making extremely easy driving grounded loads at standard voltages (12V or 24V) with ...
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1answer
353 views

peltier driver using AMP OP and MOSFET

i'm in trouble trying to figure it out how to properly control a peltier cell using current control principle . I'm using a sine wave to figure circuit behavior through 0 to 6V and 0.5HZ . Take a ...
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1answer
146 views

Question on Mosfet Driver

I have got a PWM board from china that outputs at 5V but at 100 kHz, the voltage drops to about 2.82V. Hence I have implemented a mosfet driver to pull the amplitude ideally to be 10V to drive a ...
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2answers
6k views

Arduino and motor driver l298n separate power supply circuit [closed]

I have an inquiry regarding the l298n motor driver. I encountered a problem while using it. It's like this: every time i attach the wires of my dc motors into the board's "motor A" and "motor B" ...
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1answer
2k views

How to allow a motor to free spin?

In my circuit my motor terminals are connected to the output of a VNH5019A motor driver https://www.pololu.com/product/1451. When the circuit is no longer powered I want to allow the user to freely ...
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1answer
72 views

Quadrature signal with L297

I'm trying to generate a quadrature signal with a L297 http://www.st.com/content/ccc/resource/technical/document/datasheet/f9/35/6e/3f/48/18/48/51/CD00000063.pdf/files/CD00000063.pdf/jcr:content/...
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3answers
893 views

Clamping Constant Current LED Driver Output Voltage

I want to test a Constant Current LED Driver across its voltage range without using a LED for test purpose. How can I clamp the output voltage of this driver to required voltage levels? For Example -...
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1answer
2k views

ADC driver design for oversampling

I'm interested to sample an AC signal in the range of 5kHz - 20KHz with the STM32L432KC microcontroller. This microcontroller has a hardware oversampling feature, i.e it can take the average of ...
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267 views

Stepper driver reverse polarity

I would like to use a MKS TB6600 4.5A drivers together with an E-cut break out board to drive Nema 23 stepper motors (3A). My problem is that I cannot figure out how to connect the drivers to the ...
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5answers
919 views

MOSFET driver or something with similar function for highside back-to-back MOSFET switch

I want to supply a microcontroller with 4x AA alkaline batteries or via USB, with the USB source being dominant. Meaning when USB is on, the batteries should be disconnected. For the USB path, I ...
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1answer
955 views

Voltage for motor driver

I am using a Pololu DRV8355 dual motor driver. According to the specs, it requires voltage between 1.5V and 11V to operate. I'd like to use two 3V motors with it, and also power an Arduino (Mega 2560) ...
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1answer
656 views

Isolated Gate Driver Consistent Failure

I have a Tesla coil driver, designed around a UCC21520 isolated gate driver. It is operating as a fixed 50% duty cycle half bridge switcher. The frequency is varied from 150kHz to 250kHz. It is ...
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2answers
547 views

LED Driver Components [closed]

What electronic components is a constant current LED driver made of? And what are the different components in constant voltage LED driver.
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3answers
332 views

Can I drive a BLDC driver with this diagram?

I'm a programmer and I've only started messing with hardware half a year ago, mainly with the Raspberry Pi. I now want to drive a brushless DC motor using my Raspberry pi. To do this, I've bought this ...
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1answer
41 views

Voltage Converter Circuit

I am using SN75188 for converting 5V,0V 16 kHz square wave to -7V,7V 16 kHz square wave and using SN75189 to process opposite convertion. I have shown the dataheet information of them. I considered ...
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0answers
194 views

High side driver schematic

I'm working on an android controlled input/output/gauges manager for cars based on a pic24 micro controller. I'm really not an electronics expert so I had someone working on the schematics but he has ...
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1answer
125 views

Would a stepper motor driver chop a high current to its max allowable limit efficiently everytime?

We are using this stepper motor driver A3967(https://www.sparkfun.com/products/12779). If we increase the input current to the driver to 2Amp, will it cutoff the current to the motor at 750mA ...
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3answers
2k views

What is the efficiency of a stepper motor driver?

We are using this stepper motor driver (https://www.sparkfun.com/products/12779). In its datasheet, there is no mention of efficiency? How much is the efficiency in motor drivers like these?
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2answers
549 views

Is it possible to driver two parallel MOSFET by using single optocupler (TLP250)?

I am Using TLP250 to drive IRFP260N MOSFET . If i use separate driver to drive MOSFET i need two power supply . so i am looking for single drive solution for multiple mosfet .
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1answer
1k views

DC motor humming troubleshoot

We are working on a robotics project employing a differential drive.We are facing problems with one of the motors .While one of the motor runs fine, the other motor humms and sometimes doesn't run ...
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1answer
113 views

Designing an LED Driver

I'm a beginner in electronics, and started the 2nd chapter of AoE, regarding transistors. I've decided to design my own LED driver, as mentioned on page 76 (3rd ed.) simulate this circuit – ...
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2answers
89 views

What's a single-ended single duplex buffer with 5V drive strength?

I'm interfacing to the "Dynamixel TTL" bus, which is a simple TTL serial bus with multiple talkers. Thus, while I'm not talking, I need to tri-state the output, and be prepared to read input. There is ...
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2answers
2k views

Driving a laser diode with an LM317

I want to make a a line of sight sensor. I want to drive a laser diode with constant current and aim it at a photodiode, then using a transimpedence amplifier I will monitor any changes in light ...
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3answers
561 views

How to use 350mA constant current driver with a 180mA LED

As part of a domestic down-lighting system I've got a 350mA Constant Current driver, but i'm advised the LEDs I want to use should be driven with a 180mA CC driver. Changing the driver or LED's is ...
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1answer
415 views

LED Driver with Overcurrent Protection

I designed a small circuit to drive LEDs with a classical constant current source (transistor and opamp). Then I realized, that a colleague using this circuit might do something wrong and tries to ...
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1answer
45 views

Max supply current

I am using a driver Si830 to drive a half Mosfet bridge, and for the voltage 12VP I am using a flyback (LT8047) I want to know how much current is drown from this sure to be source the flyback can ...
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1answer
222 views

Stepper Motor over heating and optimal decay settings [closed]

Motor is overheating at 50% decay settings (Driver : TB6560HQ), so what is optimum decay settings , need to increase or decrease? I have basic understanding that if 100% decay, possibility is high ...
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2answers
286 views

Waterproof Fan Failing In A Chamber With 100% Relative Humidity

So I've built a aeroponic tower that uses an ultrasonic atomizer instead of spray nozzles. This approach is called "fogponics" across the hydroponic community. My Problem is that I have to run a fan ...
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1answer
437 views

Requirements for dimmable LED driver

I bought a new LED aquarium light and the driver that came with it is not working. I want to buy a replacement driver but I need a better understanding of the driver requirements before I can make an ...
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3answers
13k views

How to use N-channel MOSFET as high side switch (non-buck switching)

I have an application with some constraints for which it feels difficult to find a solution. load current more than 10A, so N channel MOSFET is preferred; working voltage is a bit high, between 50-...
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2answers
1k views

Problems driving pulse transformer with low-side MOSFET switch

I'm trying to produce a DC isolated output voltage of approximately 2.5V at 100mA from a ~55V DC supply. The purpose is to charge individual cells in a lead-acid battery from the power of the battery ...
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2answers
6k views

Running COB LED without driver (undervolted)

!Hobby project! I have a power supply form a printer (actually I have 3 :) ). The PSU is 24V, 1.25A. I want to connect some COB LEDs to this PSU without additional electronics. The idea is that the ...
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3answers
184 views

BJT driver, high peaks in power

Inspired by this post Designing a *linear* MOSFET driver stage I used this kind of driver for my controlled current source. I use LTSpice for simulating and everything works fine until today :) ...
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3answers
4k views

LED driver PT4115: how to avoid arc around IC pins?

I built a LED driver with PT4115 IC. The board lighted LEDs up but sparks appeared around SW, VIN & GND pins after 10 seconds and the phenomenon didn't damage the IC. I recorded it by my mobile ...
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4answers
914 views

TC426 Mosfet drivers keeps blowing out

i made this BLDC motor controller, here is schematic But TC426 Mosfet drivers keeps blowing out when i connect a load, after drivers fail, mosfets are still working, only drivers blows out, I checked ...
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1answer
619 views

Mosfet driver confusion

I'm using an Arduino MEGA 2560 to control some mini dc vibration motors that work with around 3V and I'm using 16 digital outputs (I'm creating the PWM wave myself). The Arduino Mega provides 5V and ...
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0answers
4k views

run bldc motor with arduino and l298 driver

I am trying to learn controlling BLDC motors without using an ESC, but using Arduino and a driver, instead. At home I found an old DVD driver and took out the motor, which was Nidec Slim 24C, http://...
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1answer
171 views

Power supply and motor drivers problem.

I have a 24 volt 6.5 amp power supply which I am using to power a stepper motor driver which is rated to 3.5 amps max. Will directly connecting the two cause a problem or will the motor driver only ...
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1answer
2k views

STMicroelectronics ST-LINK/V2-1 USB driver for macos?

I am trying to connect to my MacBook Pro the eval board: STEVAL STLCX01V1 from STMicroelectronics so I can try programming the SensorTile. I am using OpenSTM (System Workbench).
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1answer
64 views

LED Power Box Design

I am designing an LED power supply unit, using off-the-shelf constant current drivers (Phillips Xitanium). The system will include a 0-10v dimmer, and I need to connect the Xitanium to both 120v for ...
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844 views

Problems driving a universal motor with triac

I have a router, Dewalt DWP611. The controller unit burnt out, so I wanted to make something simple to control it. I made this circuit: My motor is 110V version and I am using 200k potentiometer ...
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3answers
5k views

Driver failure when driving IRF3710 mosfet using IR2101 driver

I've made a driver circuit using IR2101 driver and a fairly large IRF3710 mosfet. The circuit works up to a certain current through the mosfet but then the driver mysteriously fails and pulls both ...
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2answers
171 views

Do hardware designer consider software(Firmware or drivers) while designing hardware? [closed]

I like to know what's the procedure of building a new device? Foe example a hardware designer decides to make a new laptop that can run Windows or Linux, or someone wants to build a new Android device,...

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