What is an H-Bridge?

0:00 Introduction
0:17 How DC motors spin
0:41 Basic H-Bridge topology
1:22 Different H-Bridge states
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[CircuitBread]

Hi everyone! Someone found an error in the original video so we took it down and are now republishing it with that error corrected. Sorry for the confusion!

[francescocanigiula]

You're a true master and I really love your way of speaking and even your voice: I could listen to you for hours! 😁

[Mtal]

This is incredibly informative and helpful!

[tedbastwock]

This was a very nice and clear explanation, thank you. I see the pwm only needs to be on one side, does it matter if it is the high or low side?

[synth]

It would be nice if you make data logger tutorial somewhere in the future. There is practicly not a sningle useful tutorial about that on YT. It would be nice to measure temperature for example and transfer data to PC to make some graphs, temp vs. time etc..

[LeoAlexanderJayAlexanderJay]

Hey I love the series so much that I subscribed.(I love your Vids) But I have a question. Can the PIC10F200 be programmed in the same language as in the arduino IDE? (Please respond)

[urnoob]

i mean, using 4 nmos isnt an error, it requires more external circuitry to drive it in most cases and is probably just less common (it exists)
all that and it is still less efficient
it s not like pmos is rare or something, dunno why anyone would ever use 4 nmos

[FlyiDCG]

Hey I think this may answer a question Im trying to figure out. What is the main difference between a hobby grade ESC & the motor controller/receiver board of a toy grade RC car. It seems the toy grade board has no PWM & the hobby ESC does. Both of the have H Bridge is this a correct guess? Since speed isnt controlled by the TX this means the toy RC has no PWM?

[VitB]

Few queries about H-Bridge:
1. Can it vary duty cycle and frequency?
2. If an H-Bridge is connected to a copper wire of length 15 metres, will the wire see a voltage drop due to impedance? If yes, how to overcome that impedance ? Thanks!

[JonDeth]

I actually invented an ultra efficient motor with a multitude of operating modes. AC, pulsating DC and various combinations of the two. An H-Bridge and algorithm run microcontroller would certainly expand upon it's functions.