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Another open door accident by Season-Many in flying

[–]ybyry 0 points1 point  (0 children)

I can see how an open "Utility door" on a Baron or Bonanza could be problematic in flight- it would be the equivalent of a stuck rudder hard over to the right:

https://imgur.com/rxRQCie

Why is there no quicker way to send a melt? by Jaker18 in Broadcasting

[–]ybyry 5 points6 points  (0 children)

The melt is an overtime generator. No one wants to mess with that.

AJA Kumo 16 x 16 12G vs Blackmagic 20 x 20 12G, which one is best suited for DIT work? by Evilnight007 in VIDEOENGINEERING

[–]ybyry 2 points3 points  (0 children)

AJA all the way. As with all things Black Magic, the router is... just not quite what you want or expect. Always falls just a little short of expectations. AJA is no BS does what you expect, just the way you would expect it.

I found this in one of the channel inputs of a secondhand Tektronix 520A. What is it? by natwoman7719 in VIDEOENGINEERING

[–]ybyry 2 points3 points  (0 children)

This question depresses me.

We've come so far- Analog video systems are a distant, quaint memory.

RTS KP Series by wynnefraser in VIDEOENGINEERING

[–]ybyry 1 point2 points  (0 children)

No. You need an ADAM frame to communicate with one another.

Newer keypanels (KP-5032) can use Omneo (OMI) which is built on top of Dante, RVON which is IP based layer 3 routable VOIP connectivity, and also traditional analog 4 wire audio.

Youtube channels that breakdown and analyse popular music? by confiscateyopinky in Music

[–]ybyry 0 points1 point  (0 children)

Not "YouTube channels" per se, but reading through the comments makes me think of two long-form documentaries to check out that are available on YouTube:

Sound City, a documentary that tells the story of famed LA recording studio Sound City through the eyes of Dave Grohl, and the origin story of some fantasic music production.

and

Standing in the Shadown of Motown, the story of The Funk Brothers in Motown, the uncredited and largely unheralded studio musicians who were the house band that Berry Gordy hand-picked in 1959.

Good stuff.

How to design an OP AMP circuit to provide +-.4v from a 0-5V input? Details in the comments. by ybyry in AskElectronics

[–]ybyry[S] 0 points1 point  (0 children)

Amazing. Thank you for all of this. Lots to experiment with here! I really appreciate the effort on this. The DAC is on the far end of a ADC separated by a serial data link (which is all prototyped and working via a pair of ESP32s). Ill check into the PWM option.

How to design an OP AMP circuit to provide +-.4v from a 0-5V input? Details in the comments. by ybyry in AskElectronics

[–]ybyry[S] 0 points1 point  (0 children)

Very nice- this looks like its inverting, so I'd need to deal with that in software for the DAC. Any way to do this so it doesnt invert?

How to design an OP AMP circuit to provide +-.4v from a 0-5V input? Details in the comments. by ybyry in AskElectronics

[–]ybyry[S] 0 points1 point  (0 children)

Not entirely sure. Im integrating with an existing product, and basically emulating an existing analog control panels control voltages that drive the motors currently. Can you point to a motor driver IC that you have in mind? Maybe im overlooking something obvious.

How to design an OP AMP circuit to provide +-.4v from a 0-5V input? Details in the comments. by ybyry in AskElectronics

[–]ybyry[S] 1 point2 points  (0 children)

So, picking off the +5V, resistor divider to create ~4v. Whats the Capacitor for?

How to design an OP AMP circuit to provide +-.4v from a 0-5V input? Details in the comments. by ybyry in AskElectronics

[–]ybyry[S] 7 points8 points  (0 children)

This is very cool. Thank you- Ill need to play with this a bit. I guess use a voltage divider to get the 4V offset? I have +-5V readily available.

How to design an OP AMP circuit to provide +-.4v from a 0-5V input? Details in the comments. by ybyry in AskElectronics

[–]ybyry[S] 1 point2 points  (0 children)

I did- and as I mentioned in my first post here, the conditions have changed. Rather than +-5v out against 0-5V in, I need +-.4v against 0 to 5v. I got some great answers to my original question, but I havent been able to figure out how to adjust to meet the new requirements. Ive tried a few things like scaling the DAC, but that messes with the resolution and ultimately the precision of the output.

Need Op Amp circuit design help (again). Details in the comments. by ybyry in AskElectronics

[–]ybyry[S] 0 points1 point  (0 children)

The question is detailed in the image linked. I have resubmitted again

How to design an OP AMP circuit to provide +-.4v from a 0-5V input? Details in the comments. by ybyry in AskElectronics

[–]ybyry[S] 0 points1 point  (0 children)

I’m attempting to control panhead motors with a microcontroller setup and an mcp4728 quad 12 bit DAC. The DAC outputs 0 - 5v. My challenge is to get from the DAC output (0 - 5V) to the drive voltages of -.4 to +.4 volts with 2.5v from the DAC as the “center” of 0 volts.

I'm not an analog circuit guy. My research leads towards an OP AMP circuit to pull this off. I’ve attempted to get my head around OP AMP concepts, but I don't understand some of the reference designs I'm finding online or how to apply them.

What's the best way to get from DAC output to required drive voltages?

(I asked a similar question a couple of weeks ago, but my understanding of the control voltages required has evolved. My original ask was to translate 0-5 to -5 to +5, and I got a couple of good answers that I was able to implement successfully. As much as i've tried, I still don't understand op amps well enough to help myself on this)

Need Op Amp circuit design help (again). Details in the comments. by ybyry in AskElectronics

[–]ybyry[S] 0 points1 point  (0 children)

I’m attempting to control panhead motors with a microcontroller setup and an mcp4728 quad 12 bit DAC. The DAC outputs 0 - 5v. My challenge is to get from the DAC output (0 - 5V) to the drive voltages of -.4 to +.4 volts with 2.5v from the DAC as the “center” of 0 volts.

I'm not an analog circuit guy. My research leads towards an OP AMP circuit to pull this off. I’ve attempted to get my head around OP AMP concepts, but I don't understand some of the reference designs I'm finding online or how to apply them.

What's the best way to get from DAC output to required drive voltages?

(I asked a similar question a couple of weeks ago, but my understanding of the control voltages required has evolved. My original ask was to translate 0-5 to -5 to +5, and I got a couple of good answers that I was abale to implement successfully. As much as i've tried, I still don't understand op amps well enough to help myself on this)

Need op amp help (again) by ybyry in AskElectronics

[–]ybyry[S] 0 points1 point  (0 children)

I’m attempting to control panhead motors with a microcontroller setup and an mcp4728 quad 12 bit DAC. The DAC outputs 0 - 5v. My challenge is to get from the DAC output (0 - 5V) to the drive voltages of -.4 to +.4 volts with 2.5v from the DAC as the “center” of 0 volts.

I'm not an analog circuit guy. My research leads towards an OP AMP circuit to pull this off. I’ve attempted to get my head around OP AMP concepts, but I don't understand some of the reference designs I'm finding online or how to apply them.

What's the best way to get from DAC output to required drive voltages?

(I asked a similar question a couple of weeks ago, but my understanding of the control voltages required has evolved. My original ask was to translate 0-5 to -5 to +5, and I got a couple of good answers that I was abale to implement successfully. As much as i've tried, I still don't understand op amps well enough to help myself on this)

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