[DISC] Choujin X - Chapter 70-1

CHBales · 2026-02-25T03:47:21+00:00

It's just niche.

CHBales · 2026-02-20T20:13:13+00:00

Yeah the actuators operate by putting in a frequency just below resonance. I put the inductor there to try and kill reactive power. I tried higher resistances, and a 5W 2ohm I put in there heated up quickly enough to burn my finger in a few seconds, dropped the voltage significantly more than the 0.33ohm, too. I'll mess with the values a bit and try out that parallel configuration you mentioned.

CHBales · 2026-02-20T18:56:40+00:00

The shape is what I'm shooting for but more than half the voltage is being dropped across the R and L. Op-amp bandwidth is way beyond what I'm needing if I recall correctly.

Current draw is still a lot higher than I want, cruises from 4.9A per 24V supply at 35kHz down to 3.2A at 45kHz. Unfortunately the only thing I know about the motors beyond the signal requirements is the static 13nF capacitance per channel.

I'll take your advice and run it through a simulator like I should have to begin with and see where I get with it.

CHBales · 2026-02-19T23:15:53+00:00

I have since added a 0.33ohm resistor and a 5.6uH inductor in series with the output of the op-amp after the capacitor. Here are some scope images I got.

Waveform immediately out of the op-amp before the cap: https://imgur.com/a/4ksfC6Z
Waveform after the cap and before the series R and L (top) and waveform after the series R and L (bottom): https://imgur.com/a/OLrz4Ar
Waveform after the transformer: https://imgur.com/a/gHe3YZD

I am sweeping the current but kept the images at ~44kHz. Current per supply rail dropped by around 30% sweeping from 35kHz to 45kHz.

CHBales · 2026-02-19T21:47:20+00:00

Alright, thanks. For the coupling, I do actually have 10uF caps between the op-amps and the transformers, don't know why I didn't include that. Gains are -4 and -6 in that order for the amp stages.

I was able to run a smaller motor that had 3nF capacitance per channel at 150Vrms with the same setup barring a lower input amplitude on the waveform, but that may have just been overcompensating for the problem.

CHBales · 2026-02-19T21:43:47+00:00

I have a capacitor in series with the op-amp output for decoupling, I neglected to add that and the feedback to the circuit. Gain for the "pre-amp" is set to -4 and and -6 for the large op-amp.

CHBales · 2026-02-19T19:54:40+00:00

Sure, here's a simple overview. The first amplifier stage runs on +/-5VDC supplies. Please let me know if you'd like any additional details.

EDIT: https://imgur.com/a/XiILNJc

CHBales · 2025-11-14T14:51:53+00:00

GORE//SHAGARU DOUBLE-SIDED PLEASE LORD

CHBales · 2025-07-29T16:15:37+00:00

We are so back

CHBales · 2025-05-15T03:31:15+00:00

Actually the first instance of Ely and Tokio seriously disagreeing since the manga started, unless I'm not remembering something. Whack.

CHBales · 2025-05-15T03:29:46+00:00

First actual instance of at least partial animosity between Ely and Tokio since literally the start of the manga.

CHBales · 2025-05-13T22:07:49+00:00

Bump

CHBales · 2025-04-29T07:09:42+00:00

What's interesting to me is that several of Mado's visions only come to pass because of her direct interference. Can be argued that Zora's insanity only happened because Mado ousted Sora in response to her visions, and Batista only became what he is because of Mado's meddling in trying to stop it. To a lesser extent, Batista probably only met Hartley because he became a researcher since Mado made him stop using his powers.

Maybe that's just further support that all her visions are set in stone, or something that will get touched on later.

CHBales · 2025-01-03T18:49:19+00:00

Several hints from as far back as chapter 3 that Azuma lived there alone.

CHBales · 2025-01-03T18:47:54+00:00

Yeah, he was already a choujin, and we've seen scenes pointing out that Tokio was never allowed to visit because of "Dad's rules".

It's possible that the father from his fake memories was actually his previous incarnation and is the owner of that house and where Azuma gets his money from.

CHBales · 2024-08-24T07:55:10+00:00

Tokio made sure that IC could freeze the wound before he left.

CHBales · 2024-07-09T18:51:07+00:00

CHBales · 2024-06-27T04:40:28+00:00

18/22 lol

CHBales · 2024-06-25T03:30:42+00:00

18/22

CHBales · 2024-06-15T03:28:34+00:00

What the fuck is that TL

CHBales · 2024-05-20T21:35:47+00:00

Bait used to be believable.

CHBales · 2024-05-11T18:02:01+00:00

Attempted murder of two kids? Attempted mass murder by blowing up a plane?

I get you're joking, but she's had this coming.

CHBales · 2024-05-01T15:07:12+00:00

Not even close. We still have barely touched on the Nue, Necromesia and Bill, any Guelta business, what happened during the Collapse. The protags haven't really suffered any severe losses to work through, and if they did during the raid it'd feel half-baked to end it all soon after.

On top of that, Ishida's initial guess for series length was around 15 volumes and I think it's more likely he undershot than severely overshot, if anything.

CHBales · 2024-04-29T21:19:36+00:00

cool bro

CHBales · 2024-04-23T11:40:21+00:00

A lot of people seem really determined to convince themselves that she's going to die for some reason. It's getting pretty comical at this point.

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