Good job and novel approach. Ive done this before, very similar, but trying to go from from pwm back to analog can be difficult. What I did was same front end: dc:dc , pic, but I just sent the adc value via serial over optocoupler. i used 12 bit adc, and the way I sent it was 3 bytes: upper 4bits held a code: 0010 - lower 4 bits hold nibble 0 0011 - lower 4 bits hold nibble 1 0100 - lower 4 bits hold nibble 2 On the receiver side when I got nibble 2, then I knew I had a complete 12 bits. to go back to analog, you can use a dac, or just use the digital to create a dispay.

I am a retired electronics and software engineer, and I watch your channel because I love to see a young mind going through the steps of gaining experience. I hope many other students and hobbyists for that matter watch you channel. Keep up the GREAT work man! :)

This video was excellent and solved my immediate problem. I am using an arduino to control an aquaponics panel. The system uses a mix of voltages, 5vdc and 12vdc. The 12v side is for the pump and the solenoid valves. This is easy to isolate from the 5v's. The issue is with the coil activation. The coil module needs an isolated 5vdc to power the control side of the module + the 5v pwm signal from the arduino. The pwm is isolated via optocouples, but I didn't want to include a second 5v power supply for the trigger side. The 5v-5v isolated converter was just the ticket I needed.

Analog Devices has one that is totally optical isolated. I've seen some that use a piezo transducer to send ultrasonic s down a glass rod. A PWM output on locally floating sense feeds optical back. Good for surgical patient contact isolated system.

Thank you m8 for the video and your time.

Such a good video! Also custom FS Inverter 👀😁

I love this chanal, its the best one on the internet

This an was excellent very informative video, thank you for taking the time!

Nice bench.

Try with IL300 or VOA300 analog isolated devices of Vishay. Nice work.

Any chance you can include a schematic of the circuit used for each series of the test, beyond just telling us what or how each element is connected?

I am trying the same thing using a DC to DC converter to power a ADS1115 that has a opto isolated i2c to connect to the micro controller. Also, a very simple PWM circuit can be made using an opamp wired as a comparator, where one input is a triangle wave and the other input is analog

I have two questions. 1. In the isolated circuit, where do you source vref from? 2. Is it the optocouple that inverts the signal, and what would you do to flip it back?

ABOUT IMPEDANCE MISSMATCH, THAT MEANS THAT A WAVE WILL BE BOUNCED BACK IN THE MISSMATCH POINT. A PART OF THE ENERGY WILL PASS THROUGH THE MISSMATCH AND THE REST OF THE ENERGY WILL GO BACK. like a partially clouded mirror, some light go through some reflects back. Impedance is a function of frequency. So you can only match Z to a specific frequency, unless you are using resistance.

Just found your Chanel where have you been 😂 very informative content loved it 👍 can i ask you to do some videos about inverters so called (Grid tied invertes) how do they sync with the grid frequency....ty

👍👍

What model Tabor function generator do you have? I am a huge fan of your equipment and want to pick up some myself. I have an old 1971 oscilloscope that was from a local university, as well as a modern one I picked up from my workplace. I study Mechatronics at university but I have been enjoying myself learning power systems from your channel. I am currently building a CRT driver from scratch, its to power and control a 8LO6I scope tube, and hopefully use it as a vector scope and a normal PAL TV, I am out of my element with it but I am learning, and your videos have been a great help.

I thought HV battery in EVs was on same ground as the low voltage. They do have leakage from HV to chassis detection and safety interlock that cuts the battery off when any connections are exposed.

Can pls mention the name of ic used for pwm generation?

Could you give some details on the pic12 model and programming ? I am trying to replicate the circuit.