Відео

I watched the other video that is associated with this, in which you have an LM317 for current limiting on a separate PCB. Any chance you've looked to convert the pair of circuits to limit current via feedback to the switcher, rather than limiting in a linear fashion?

little correction: 24Vin - 5Vout = 19Vdrop * 0.5A = 9.5W wasted in the 7805, not 10.5W

Lewis, it's always a pleasure for me to see you have posted a new vidéo. I think i found a mistake on the "H" bridge schematic. SW1 is HB1 and SW2 is HB2. Is that right??

where in this video is show how motor spin ????? and chose directions also change rpm for motor ????

Hope all is well with you !

Thanks for this episode. This is saved with the previous report.

very cool explanation

Thank you for this report. I will definitely keep this. There is a good chance that I will use it. Thank you and see you next time.

Thanks for sharing Keep up the good work

Nice.

Thanks a lot

At 8:58, the 12V NEG and Arduino GND are connected together, will it hurt the Arduino device, because there's 12 volts potential in the battery versus 5 vots potental in the Arduino device? Will the greater potential (12 volts) will cause a current to flow from 12 v battery to the 5 v Arduino? Or is this a case where ground are cosidered zero votage therefore no current will flow from the greater potential to the lower potential??

In the 24 vdc lamp, and 24 vdc relay with 120 vac lamp examples, is pin 8 ground connected to the 5 vdc ground for the microcontroller inputs, or is it connected to 24 vdc ground?

Hi, I doubt it when You say, "you can omit connecting the suppressor diodes common pin when not using indictve loads". I have done exactly that just because of couriosity on my latest clock build. It was on a high side driver. Anyway. IF the diodes could be pulled out of the circuit that would work. By not connecting the common pin to Vcc it makes an OR-gate out ouf the INTERNAL diodes. Watch the multiplexed outputs simultaniously altering when done on a clock. The number digits start blinking at the frequency of the seconds LED, fed through the same chip.

BURNED, you put 40V for Gate Mosfet plus 50~95V and 40K resistor and 10~19V gate mosfer >, and 10K resistor to emitter via colector GRAND

BURNED, 40K resistor plus 50V voltage and 10V emitter, and 10K divider resistor to the battery

Great video. In regards to the PNP power transistor used, if I require a higher input voltage of say 200VDC and output current of 8 - 10 amps, could I swap out the single PNP power transistor for a Darlington Transistor? Also the LM317 would be changed to LR8NS

You should be talking about the input levels of the mosfet driver, not the mosfets themselves

Can't thank you enough

can i use mechanical switch instead of optocoupler?

Hi, man i want to make an h-bridge for arduino but aldo want to control the speed of the motor. There are more questions that i would like to ask about this.

hi lewis ,,, good video ,, please how can some one get in touch with you

I'm curious what are you powering with this circuit? Are you actually using this circuit for something or this just an academic exercise?

Newbie here. How can this be adjusted to be current limiting device. I want to test broken motherboards with voltage injection (usually 1 up to 5 volts) but need to protect the motherboard from too much current (100ma to 1000ma range). How would this be achieved ? Can you make video about this?

I like conventional flow!!

The 100 of 100 teaching and clear , good

Thank you @Lewis!

Thank you so much for sharing🎉🎉🎉

I really dislike schematic representation where input is on the right and the circuit on the left, with no clear separation between input hot/live and the output live wire. Makes schematics hard to read and it is even worse for understanding what the hell it does.

Thanks ad 😍, i learned so much from you.

Sir could you please explain how to count value of resistor between Vcc and the cathode of the TL431 (in your case 4.7K) for constant current sink circuit? In TL431 data sheet I found formula for this resistor in constant current source circuit but there is no similar for constant current sink. Second question is how can I to count Ika?

Thanks for sharing your knowledge. I hope you can explain BAV99 🙏🏽 Thanks you in advance!!

I'm wanting to drive a mosfet with a TC1411N driver chip. because its a fast chip and i really need quick on and off times. was thinking of using a hall sensor to trigger a digital signal into the driver. what are the connections form the driver to the mosfet ? would it be exactly the same as your circuit shown in this video @6:55 ?

Is the motor braking?

Nicely done ! Will be using this for a multi cell heater control thanks.

Very nice sir thanks 👌👍

Good

Hello Lewis, i just found your channel "again" while looking at circuit schematics online and brought me to your channel. I just subscribed and am happy to see your channel again as i learnt a load of stuff from you when i began learning electronics a few years back.. THANK YOU FOR SHARING 👍😊🇮🇪

Haven't seen this channel in a long time. Excellent channel too, I learnt a lot from here👍😊🇮🇪

what are the part numbers of Mosfet?

You're only monitoring your clock pulse with one leg of your encoder. These are quadrature encoders which four steps per cycle not two.

check my spec sheets?! you can't make me, you're not my dad! :-D it's hard to quiet my head down. thinking of how to use the 3.3v GPIO on my ESP3622 on a PNP transistor to source from 24v through a motor has been making my head go quiet. i've been googling and reading for a week, and your diagram at 8:44 finally makes sense to me. now my brain is alive with such high quality thoughts as, "mustachioed yachtsman" and "balloon laundry" ah, that's way more clear. back to normal! :-P thank you so much!

If the input voltage to control the motor is 220VDC, 1000W, which mosfet should I use?

Do you know if I can use this device to copy and program an HT48R32-B-0 microcontroller? Thanks

Thanks mate, very helpful video

Your video is 9 years old but still a gold (other than the cough, ha ah )

how much Power(Watts) from the 24v and the 15v and thx

fffffffffffffThank you so much for the details. As a beginner on Ardunio, this video will help me greatly to create a half bridge circuit.

Does this work on windows 10 or 11?

The formula shown on the circuit diagram is "It = Ik =Ice + IL". But I think it "It - Ik = Ice + IL ". Is my understanding correct?