High Voltage IGBT H-Bridge Circuit Using Photovoltaic Optocouplers
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- Опубликовано: 21 авг 2021
- Use for controlling 120-volt 20 amp DC motor. This is a demo.
www.bristolwatch.com/ele4/inde...
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Hi, Mr Loflin. It's a pleasure to hear from you, because I hadn't received your Internet posts for a long...
Thanks for the content you produce. Clear, concise, and to the point. I’ve learned so much from your videos that I’ve been able to apply to my own circuits. Keep it up!
Your videos are extremely helpful references, thank you so much for posting!
VOM1271 very cool part. Glad you introduced them. Never knew they existed.
yes you are right i just learned abot these hi v optocouplers in this video
Thank you for posting this tutorial it hae been very instructive
Related:
Exploring Photovoltaic Optocouplers as MOSFET Drivers
ruclips.net/video/hkSW8WQ4CcY/видео.html
Thanks for sharing your knowledge
Other H-bridge videos:
Arduino Controlled IR2110 Based H-Bridge HV Motor Control
ruclips.net/video/d0r-Yx9R3Zs/видео.html
Pt. 1 Interfacing Microcontrollers to CMOS and MOSFET Circuits
ruclips.net/video/XzetdwzcOrY/видео.html
Pt. 2 Simplified CMOS-MOSFET H-Bridge Circuit
ruclips.net/video/rExHPqTUBuA/видео.html
Pt. 3 Tri-State H-Bridge using CD4093B CMOS Circuit
ruclips.net/video/b8O4ihdHx8U/видео.html
Pt. 1 TB6600 Stepper Motor Driver with Arduino
ruclips.net/video/PHe2MK9CvQM/видео.html
Pt. 2 Program TB6600 Stepper Motor Driver with Arduino
ruclips.net/video/jtX0t7-m69M/видео.html
Arduino Unipolar Stepper Motor Driver Board with Arduino Code
ruclips.net/video/HTVYiLOY8SQ/видео.html
Pt. 1 TB6600 Stepper Motor Driver with Arduino
ruclips.net/video/PHe2MK9CvQM/видео.html
Pt. 2 Program TB6600 Stepper Motor Driver with Arduino
ruclips.net/video/jtX0t7-m69M/видео.html
I've got blinking my own flash lamp on my own, thanks to You!!!!
Do You want Us to be dead?
finger down, You're All dead!!! He knows, what he is talking about! Some good Girlfriennd he needs, anyways
!! RESPECT
NO ARDUINO- he is crazy
this was awesome!!!
Wonder what these are used for? To quote, " IGBT controls electrical energy via switching amplifiers in several modern appliances, such as cookers, microwaves, electric cars, trains, variable-frequency drives (VFDs), refrigerators, air conditioners, lamps ballasts, municipal power transmission systems."
Google igbts used in electric cars.
the AC-inverter-motor drives, large forklift truck battery chargers, solar and wind inverters are producing harmonics that can burn out electronic devices. in our plant we have to use line filters to reduce the 5&7th harmonics. the power grid is making new regulations. just wanted to add this BS in...:/ great video and a wonderful bench project...thanks...:-) fun
I have an H-bridge FET circuit that I intend to use to energize a coil in one direction or the other for pulse times of around 20-30 us with 32 A @ 6-8v. The duty cycle will be no more than 10%. Is the amperage rating mainly a result of heat buildup across either a FET (or IGBT) such that a 7.5A part would be safe - or is this more a function of physical bulk to avoid internal breakdown and I need to use full (or higher) rated current parts?
In my view it is partly mass and partly resistance. An IGBT has lower resistance but at this voltage there are some very low resistance MOSFETs.
Thank you for the detailed video. I was wondering what kind of transistor to use for 350V operation on a capacitive load?
Any help is appreciated.
There are plenty out there. The ONSEMI FCH041N60E is rated 600V at 75 amps.
@@LewisLoflinThanks for the reply. I wanted to ask, if this circuit can be used to drive a capacitive load at 350V, by just replacing the IGBT with ONSEMI FCH041N60E? I do not want PWM control, the load needs to be switched on and off at a very low frequency(< 0.5 Hz) with ground isolation. If the circuit needs additional work, please help me with that. Thanks in advance.
and the max current is 7A
Hate to keep bothering you again. Been on your website quite a few times. Love all the information you provide. Where did you happen to get your VOM1271s? Digikey has 0, Mouser won't have them till the end of December, Amazon but that's a few weeks.
Apologize, I found them at NAC distribution. Did you use a SOP8 breakout board for those?
I used the SOP8 which means I had to buy carrier boards. I got all of this on Ebay. Let me check.
OK they are on Ebay 5 for $6 and the carrier boards are also there search "so8 to dip". I got mine from Ebay.
yay
Thanks for the video. Why it is forbidden to connect Arduino ground to motor supply ground? I just need that common ground right?
The motor ground can stand alone, that is what the optoisolators are for. That is 120V, do you really want to connect that to a 5V Arduino? In theory, you can until power line spikes destroy the Arduino. Or you get shocked.
i don't get it. you connect the gate to source and the igbt turns on? where does this vom1271 gets its power from? at 3:26 you show a page where it is says vge on is 7-8 volts, so where is it on the actual circuit?
It is a voltage DIFFERENCE between gate-emitter is what turns on the IGBT.
I'm kinda new to IGBT's so one thing that I can't understand.... for me a FET can deliver higher amps due to the lower RDSon than a BJT, so why use a BJT at the output in these IGBT's?
Wouldn't a FET be better for power? I mean a FET can have like 1mOhms and a BJT.... not so low....
Is it something I'm not getting here?
Not according to industry. They handle higher voltages and current. They are used for example in electric cars. See the following:
www.rohm.com/solution/industry/motor/motor-non-iso-240v
so for IGBT you need 8-12v between Gate and Emitter for it to saturate?
7-8 is plenty.
@@LewisLoflin thanks
schematic ? found it :)
If one wonders what these are used for try electric cars. You should get to know them. See example:
www.rohm.com/solution/industry/motor/motor-non-iso-240v