Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Hello There,
Thank you for the info, I had to study up how a MOSFET works again, but I understand now what you meant, thank you for guiding me in the right direction too. I will need to spend some more time on this than what I figured. Thanks again.
Hey there,
Thanks for the feedback, the flywheel arrangement is something that I haven't seen before, thanks for clarifying that (Keep in mind that I'm a newbie when it comes to these things).
I'm not looking at changing the design and building a new PWM ESC at this point in time. I fried the...
Hello People,
I'm working on a project and blew some components on the a PWM ESC board. These boards can be found on AliExpress etc.:
https://www.aliexpress.com/wholesale?catId=0&initiative_id=SB_20210911132935&origin=y&SearchText=DC+10V-50V+12/24/36/48V+60A+Motor+Speed+Controller
I created...
Hello Everyone
I'm trying to understand the automatic power source selector of the Arduino boards but can't get my head wrapped around it. I've rearranged the circuit and have come up with the schematic below. I understand that IC7B is a opamp used as a comparator to switch the FET (T1) either...
Thanks for the feedback guys.
I understood that the resistance value needed to be changed to change the current limit value. Thanks for clearing that up for me Crutschow. I was planning on optically isolating the micro controller from the rest of the circuit for protection anyways. I want to be...
Hello Crutschow
Yes, I understand that the circuit will have to be calibrated should I drive the mosfet directly from a micro controller. I want to be able to change the limited current value to what I require automaticly. I was thinking of using Sparkfun's current sensing module to do the...
Hello everyone
I'm trying to figure out how to implement a current limiter that will be able to limit current up to 5A. I was browsing through the web today to try and find a suitable design but I'm not too sure as to which one to use. One of the promising ones were one found on wikipedia...
Hello Everyone
Thank you for all the input so far, I really appreciate it. I think that I'm going to stick to the last revision of the circuit that I've done and play around from there.
Found one that will be able to handle it.
I'm sorry it's been a while since I've worked at component level...
Hello Gentlemen
Thank you for the response and the feedback. I've went ahead and revised the circuit as suggested by Crutschow. Now I've done the calculations as suggested and found that if I have a resistance of 12 Ohms then I will have the current limited at around 100mA. Alternatively if I...
Hello there
Thanks for the info. I've got small 12V batteries that I've salvaged out of a UPS:
**broken link removed**
So I'll be charging at around 500mA I think.
So that means that I can remove the FETs with the diodes since I won't be dropping the voltage below 12 V. In the current...
Hello Everyone
I hope that you all are doing really well. The project that I'm busy with is a little battery charger that will disengage when a set voltage is reached and engage again when the battery is drained to a certain point. I'm basing my design on the circuit I've gotten from the...
Hello everyone
Thank you all for your responses, obviously I'm doing something wrong, I'm going to struggle to find out where I'm going wrong with my calculations, will adhere to the rules for design when running the converter in continuous mode.
I've just registered to be able to utilize...
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