what about connect them in parallel and charge them at 13-14 volt with a simple power supply. until they are charged to 12.5 volt. simple. does it kill them or reduce their life?
@thorenscientificАй бұрын
@glenbrisebois8239 I'm working my way through the old LT videos - this was outstanding!
@Cynthia_CantrellАй бұрын
I recommend getting rid of the ripple right at the switcher's output, which means a ferrite bead and / or inductor (depending on frequencies) BEFORE the switcher's output cap. This can be tricky as it can introduce another pole in the feedback loop and turn your power supply into a big oscillator. However, in places where you have a clock somewhere on your board multiplied up into the GHz range, this is necessary. As is filtering that supply with the FB / inductor, large cap as close as possible with the shortest traces possible, and DON'T drop vias to your power plane and ground planes until AFTER this filter. If that diode ringing from the switcher makes it on to the power and ground plane, it will bounce those entire planes, and adding ferrite beads around the linear regulator won't help you. The power/ground plane makes a far better transmission line than it does a capacitor, and there is no way to stop the entire ground plane from bouncing around once that noise gets on it. So stop that ringing right at the switcher!
@jukkaheikkinen16762 ай бұрын
Are you planning to update this video series?
@OldCanadianguy9533 ай бұрын
The man radiates intellectual honesty. RIP.
@matthiasyee14313 ай бұрын
thank you vm!!
@MrCarlsonsLab4 ай бұрын
I know this is old, but great job Bob, you explained this well!
@phillipneal81945 ай бұрын
Gee. 30 Mhz is way above normal HF limits
@udohuhn-rohrbacher14065 ай бұрын
I tried your method and compared the result with the datasheet of a LT1001. Unfortunately the max. Gain between my LTspice simulation and the datasheet differs by about 10dB roughly. Can you verify your method by applying the LT1001 in your circuit arrangement. Thank you for your response.
@physicsbymajdoubi69606 ай бұрын
Thank you so much for this very good LTspice, just I have question concerning the appearence of the LTspice downloaded from your site is not the same as the one existing in tutorial, Please how could I fix the problem. thanks
@errantwashere6 ай бұрын
Errant was here
@hijazecell54717 ай бұрын
God heal you fro desease thank you
@cyrus-music8 ай бұрын
The goat...rip
@CN38919 ай бұрын
The tutorial is great but I’m gonna Shazam that intro music
@josefbdwiyono512810 ай бұрын
Thank you SIr
@keunkookim10 ай бұрын
안녕하세요? 여기는 한국입니다. 질문이 있습니다. LT4356 셧다운 현상. 2024년에도 답을 줄 수 있습니까?
@jameelsameer700010 ай бұрын
can we test your devices by usin arduino uno/mega/nano by using same code or with modications in reference code
@jasperkatzban160510 ай бұрын
Anybody else here for the intro and outro music?
@jpdesroc11 ай бұрын
Hi, I Need working LTSPICE libraries for 74HC and 74HCT families including their associated .asy files. I found many places on the web for 74HC.lib and 74HCT.lib files downloading, But for the .asy files associated with these .lib files there are no 74HC or 74HCT subdirectories in .zip files that would work with these .lib files. I spent all my last afternoon trying to find such working files with no success so I surrendered. So.. I’m asking if you have 74HC.lib and 74HCT.lib files with their associated .asy files (directories) That you tried and work ? Reliable ? BTW I’m not a beginner with LTSPICE. The library files are placed in the good sub-directories for them to work.. I already have many projects with the CD4000 family (with good .asy files) that work like a charm.. Thanks for your help !
@pcb7377 Жыл бұрын
I want to get 50A load through this chip! what do you advise? can I find inductance and transistors for this?
@pcb7377 Жыл бұрын
Thank you for the video! Need advice! I need a 4-Switch Buck Boost Controller. Load 12V - 50A. input 10V-16V
@peguy2975 Жыл бұрын
Can anyone help me find SPICE model for MAX13256.
@wardomatch5975 Жыл бұрын
I was wondering what is the music called that is used in the into to this video?
@lohikarhu734 Жыл бұрын
that's one of the true "gurus" of early analog IC and circuit design...and my bench looks like his bench...if only there was a correlation with "guruness"! (although, it is true that creativity is not most often seen coming from a 'sterile' lab bench...)
@leejohnson197733 Жыл бұрын
i really need help with this program, i am trying to create a RLC circuit in parallel and create a resonance curve, i have no idea how to do this, any help would be fantastic
@ald3588 Жыл бұрын
RIP Jim Williams, We miss you and your amazing designs.
@lohikarhu734 Жыл бұрын
So few, who taught so much, to so many! And I think that Jim was one of the nicest of the very small group...
@eoinbeevers2597 Жыл бұрын
What are typical noise values for the input to headphones in V/Hz^(1/2). I got a value of 40 microV/Hz(^1/2), and am not sure if this value is too large to be practical.
@phillipneal8194 Жыл бұрын
Can it be used for HAM (HF) Frequencies ?
@IoannisDoukakis Жыл бұрын
I used this regulator to power a couple of RF circuits and its performance is amazing. There are some details in the PCB layout (see the datasheet) but nothing very complex. I used only MLCC capacitors, even with the 4.7uF no issues with stability. A tricky part is that the divider is just for the power good input, it is NOT controlling the voltage of the regulator. The accuracy and stability of the output improved by moving the OUTS (sense) input closer to the load, in contrary to the datasheet proposal. Finally, one nice feature that it has, is that you can sample with an ADC the ILIM pin and get the power consumption of your circuit without using extra resistors and high-sense amplifiers. The ILIM pin goes to 0.3V, ground referenced, something trivial to connect to an ADC on a microcontroller.
@domdecosa Жыл бұрын
"WAV" is pronounced "wave".
@harithabinu7572 Жыл бұрын
How it is connected to arduino
@jugnu361 Жыл бұрын
Make its SOIC or TSOP package
@lohikarhu734 Жыл бұрын
Missing Jim ... a real electronics guy's electronics guy !
@Liam-j6y Жыл бұрын
thanks :)
@kavyahegde8636 Жыл бұрын
Sir, How to give impulse response in ltspice?
@tonyfremont Жыл бұрын
Is this the Jim Williams from Usenet sci.electronics?
@epleace Жыл бұрын
Clear, uncluttered, direct from a master.
@Zp5Entertainment Жыл бұрын
Zp5 saya fikir saya membutuhkan video lanjutan beserta contih pengaplikasiannya (pada motherboard) atau apakah sudah ada motherboard yang menggunakan ini ?
@jocosson8892 Жыл бұрын
I would love this for a 60v 5s solution with 2 parallel banks; should I split if 3 - 5 or 4 - 1 and aux? do you have a product for this you can link?
@pravinsengottaiyan9244 Жыл бұрын
Please share relevant user document
@lcl7wrkr Жыл бұрын
Hey, let's NOT include a command specifically to jump a wire. That'll make simulating fun.
@douglundy5755 Жыл бұрын
just searching for a balancer for two six volts in series, one gets more charge and overcharging them doesnt fix that. They need a balancer circuit
@zingraffdocta3776 Жыл бұрын
a stupid question: i'm using lt8302 for a dc-dc converter. i've set up everything but when i start it up, the lt8302 doesn't switch. there is permanently di input voltage at the switch. how can i make it switch on and off ? that was the case in the simulation but i used the command .tran startup and it worked. what should i do now in reality?
@OctavMandru Жыл бұрын
I learned something new. There are only few who can be concise, accurate like that. Thanks to YT we have at least some memories preserved of these great teachers You are missed, Jim. Rest in peace...