A circuit which allows power to be applied to a load in either direction. Often used for reversible motor control.
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Can L293D be replaced with SN754410NE?
I have a circuit that is set up to run motors using an Arduino and an H-Bridge chip. It works fine with the L293D chip but when I replace it with the SN754110NE chip it stops working.
As far as I ...
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3answers
1k views
Can I wire the two sides of a L293D Dual H-Bridge together if I only need one H-Bridge?
Background: I'm using an L293D dual H-Bridge to drive a DC motor, but only one motor, and the package contains two complete H-Bridges. This is all being soldered onto Veroboard (stripboard).
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1answer
311 views
Is this a reasonable circuit for locked antiphase PWM?
I'm building a motor controller for a robot that will have a very limited number of IO pins available. I need to drive two motors from only 3 pins, and Locked Antiphase PWM, where the motor is ...
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2answers
1k views
Driving H-Bridge Inverter via AVR (trilevel or bilevel PWM)
I'm attempting to design an inverter that will be driven mainly by an AVR uC. The H-Bridge will consist of 4 IR840 N-Channel MOSFETs. The left and right hand side of the H-bridge will be driven by two ...
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2answers
309 views
Galvanic separation between a microcontroller and a motor driver
Is it possible to achieve galvanic separation between a microcontroller and this driver . It's a dual full bridge driver and I'm going to parallel it's outputs (consequently the inputs and the sense ...
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2answers
122 views
Circuit design for controlling 6 individually selectable motors
I need to control 6 of these DC motors from an Arduino. If I needed to control them entirely independently, the obvious choice would be 6 H-Bridges, but I have somewhat relaxed constraints, so I'm ...
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4answers
332 views
Ground as Heat Sink
First of all, this might be a newbie question, but I'm just getting into hobby electronics and robotics, so this is all very new to me. Anyways, I'm looking at the data-sheet for an L293 IC, which ...
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366 views
Which pin is the one for power going to the motor in a L293D?
I have a L293D and I am unsure on how to connect both the power supplies for the motor and the logic of the device. I am aware that the grounds of both supplies must be connected together. But unsure ...
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2answers
939 views
Where to place decoupling capacitor
I am using this(also below in question) circuit to drive a motor, and I heard I should put a decoupling cap in there to smooth out voltage spikes. I have been told to put it close to the ic, and I ...
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1answer
647 views
Power input on l293d motor driver
Two of the pins on the l293d are labeled VS and VSS. Apparently they are both power. Here it shows VS being supplied with 12V, while vss is receiving 5V. Here, it shows both receiving 6V from the same ...
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2answers
555 views
What components do I need to build a motor controller from the L298?
I'm thinking of buying a pair of L298Ns, to control a pair of 1.6A motors. I'd like to control each motor with a signal PWM wire and a direction wire. However, I've hit a couple of problems.
It is ...
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174 views
Seeking replacement for TA7279AP dual full H-bridge
I am searching for a dual full H-bridge chip with separate load voltage inputs for each bridge and high impedance state for outputs when idle. The TA7279AP is perfect but is being phased out.
The ...
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2answers
869 views
Cap's on H-Bridge… Seem a bit redundant?
The Below is a H-Bridge Schematic from this site: http://www.societyofrobots.com/schematics_h-bridgedes.shtml. Wouldn't the 10-100nF cap be rendered useless by the 10000 uf cap? Wouldn't the caps just ...
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1answer
508 views
Please convert Eagle Library
I've scoured the internet for an EAGLE library with the SN754410NE part. I found one, but it's for a version previous to 4.11 and I'm on a Mac and have no way to convert it 55.10. The original file is ...
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1answer
2k views
1N4007 comparable with 1N4001 diode?
I'm trying to make a bipolar H-Bridge motor driver. But instead of the mentioned diode(1N4001), I've got a 1N4007 diode. Can I use that instead?
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2answers
742 views
How many control pins needed for L298N H-Bridge?
I have a simple robot with two DC motors. Using the L298N Dual H-Bridge, what's the minimum number of control pins I can use to give me forward, back and turn?
Here's a typical setup for the chip. It ...
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3answers
1k views
Stepper Motors (on mbed, not arduino)
There is some information on chiphacker about using an arduino to control stepper motors (I'm driving Bipolar, 4 wire, motors), however I'm finding it hard to know how to control a stepper motor using ...
