engineerj
@engineerj
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Joined: 2023-06-23 3:07 pm
Last seen: 2023-06-30 4:10 am
Topics: 2 / Replies: 10
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RE: Buck-Boost Converter Inductor Current High

@davee Thanks so much for the info. This is exactly what I need. I have no problem doing research before I start; I just don't always know what ques...

11 months ago
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RE: Buck-Boost Converter Inductor Current High

@davee Thanks for the input. I took your advice and bought this on Amazon. I will run some tests on it so I can learn how it works. It is design...

11 months ago
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RE: Buck-Boost Converter Inductor Current High

Update: I reran the model but put more inductors in parallel, and it significantly dropped the current across each inductor. Then I decided to check ...

11 months ago
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RE: Best way to control current amplitude, pulse width, and pulse frequency?

@inq Thanks for the input. As a software guru, do you know what the address is for on the circuit diagram? On each of the AVR32 chips it says Addres...

11 months ago
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RE: Best way to control current amplitude, pulse width, and pulse frequency?

@inq I will try to answer your questions here. And to everyone on this thread, anything you post is just a suggestion. It is my responsibility to ver...

11 months ago
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RE: Best way to control current amplitude, pulse width, and pulse frequency?

@davee Hi Guys, Sorry about the acronyms. FES is Functional Electrical Stimulation. It is basically the same as TENS, or NMES devices that are commo...

11 months ago
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RE: Best way to control current amplitude, pulse width, and pulse frequency?

@davee Hi Guys, Sorry about the acronyms. FES is Functional Electrical Stimulation. It is basically the same as TENS, or NMES devices that are commo...

11 months ago
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RE: Best way to control current amplitude, pulse width, and pulse frequency?

@davee I really appreciate your feedback, and I think it is healthy to be skeptical on the internet so I wrote a crash course in how this works and th...

11 months ago
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RE: Best way to control current amplitude, pulse width, and pulse frequency?

@hzulu The hydrogel used on the electrodes lowers the skin resistance down to about 1 kΩ. This makes the voltage around 143 V which is about 20 W of...

11 months ago
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RE: Best way to control current amplitude, pulse width, and pulse frequency?

@inq. I appreciate the support. We usually model the skin with around 10 kΩ of resistance. I attached a figure showing the biphasic waveform for an ...

11 months ago
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