A chip that sends a signal with more current or voltage, or over longer distances.
0
votes
2answers
65 views
How to drive 32-by-32 (or more) LED matrix?
I have a matrix of 32-by-32 LEDs that I need to control using a driver. The largest driver that I found was a 16-by-16 driver by Linear Technology, and there is no driver that goes higher than ...
3
votes
1answer
76 views
DC Motor driver interfacing problem Atmega32 Board
simulate this circuit – Schematic created using CircuitLab
I want to drive 24V/5A DC motor with Atmega32. So bought motor driver having 24V/20A rating. But i am facing some issues :
...
2
votes
1answer
367 views
Is it possible to run a stepper motor only with a L293D at reduced current?
I would like to drive my stepper motor (1.4A rated current, 3.5V, 2,5 Ohm coil resistance). I only own some L293D drivers but I think I will burn it if I just wire the motor to the driver without some ...
1
vote
1answer
117 views
Efficiently driving 8 low-current Optocouplers
I'm looking to drive a bank of eight FOD4216 random phase triac drivers. I'm looking specifically at the (insanely expensive, $3!) Fairchild FOD4218, which needs 1.3mA to switch. 8 * 1.3 = 10.4 mA ...
0
votes
1answer
481 views
How to use a SN75441 h-bridge in conjunction with an arduino
I am trying to use a SN75441 h-bridge in conjunction with an arduino in order to drive a DC motor forward and backward. Let me describe the setup and then the problem I am encountering.
I have an ...
0
votes
1answer
224 views
Most efficient h bridge to run two DC motors in robotics application
EDIT: I was mistaken about the motors, I actually have a pair of DC motors
I want to construct an h bridge that would allow me to control the servos in a boebot. However, I want to maximize the speed ...
3
votes
0answers
52 views
SPI transaction timeout linux device driver
I am stucked for last 3 days at a point if anyone have any info regarding it then please do share...
I am working on eink device driver with msm8960 qualcomm chipset.
...
2
votes
0answers
124 views
How to make your own EL Wire (electroluminescent wire) inverter
I would like to make an EL wire (electroluminescent wire) inverter because I can't seem to find a commercial inverter that can drive the right length of wire from the batteries I would like to use: ...
1
vote
0answers
89 views
Can I add dimming to a high voltage LED driver
I have an LED panel with 288 LEDs. Two banks of 144 in series. The voltage at the input of each string is 450v and the rated output of the panel is 36W. Currently, there is no dimming capability and I ...
1
vote
0answers
120 views
Undervoltage lockout for small-power MOSFET gate driver
I am developing a battery switch-over circuit which is made of two lanes of the depicted circuit. Operation voltage range is from 3V...12V. Only one lane should be enabled at a time which is governed ...
1
vote
0answers
202 views
Using a diode or resistor, to supply minimal voltage to LED Driver (Help!)
I'm using a dual 60W LED multi-chip pendant lighting (a.k.a. "high bay" pendant light with two 60W LED chips). This light is using an RGB driver (one per multi-chip) that has a remote control to ...
