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    Small circuit design

    An advantage of using LM317 is of course it has thermal and short circuit protection. Tradeoffs, always tradeoffs.
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    Small circuit design

    Rough sim since I did not have correct LED model.
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    Small circuit design

    Error post. Deleted.
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    home built cd ign for a V8

    Electronics World and radio Electronics had multiple designs over their publication period. Might be difficult to find specific magazine issue but here is where the issues are. 1960's late and 1970's period of time. I think you can search for phrase inside of pdf's...
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    Electronics seems like magic!

    Bardeen, Brattain, Shockley first transistor :
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    Replacement transistor help needed

    *.jpg files usually work with all sites.
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    Ho Train controller 6 channels Motor control feed back affects all circuits

    Sure sounds like each controller trying to control same motor. Do controllers have remote sense, eg. when you used diodes were you sensing motor side of diode ? On topic discussions - https://www.modelrailwayforum.com/viewtopic.php?t=3686
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    Replacement transistor help needed

    Take a well focused picture of part and any logo it may have and post.
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    Question regarding creating a boost circuit, 24 to 200V for a solenoid

    What is the current requirements of the solenoid ? 200V is needed for solenoid ? Given the actuation is effectively a very low frequency event you may be able to get away with no gate driver. There are several considerations that must be dealt with, the high C and Miller effects of the MOSFET...
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    Question regarding creating a boost circuit, 24 to 200V for a solenoid

    1) How are you going to turn off the SCR ...
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    Which MCU do you prefer — ESP32 / STM32 / RP2040 / Arduino?

    PSOC ARM SOC, all the mixed signal + ARM + on and off chip routability + fabric to create your own specialized HW + wizards, state machine, DMA, Ohmmeter to manage high precision analog paths +.... Whats on chip, multiple copies in most cases : IDE and Compiler (PSOC Creator) free. Users...
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    Richi's lab

    Google Translate takes care of German to English or other......
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    Is there any introduction to the wireless communication solution that ESP32-C5 brings to the Internet of Things industry?

    I use Tuniot to code as its fast and simple, dont have to get into the weeds. Can have a network up and running in a couple of minutes. There is a series by Tuniot Prof on youtube covering ESP32. Following one of their templates - https://www.youtube.com/@ADELKASSAH Tuniot is block language...
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    LCD with through hole pins

    Some pins soldering looks marginal, like Solder not wicked / flowed well on pin. Use liberal flux to get it to "take" to pin. I see several in the joints between boards. https://www.finepowertools.com/diy/soldering-defects/
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    Power ground, control ground routing

    https://www.ti.com/lit/an/slyt499/slyt499.pdf https://www.ti.com/lit/an/slyt512/slyt512.pdf The above might help. A series (6 parts) of short videos on grounding : Regards, Dana. --- Updated Yesterday at 9:28 AM --- One other good reference, attached. Even though switcher centric some...
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    I need some help in making Good power stability circuit

    If you are not totally focused on power savings just use two 3 terminal regulators for the correct voltages needed. If power conscious use dual switching regulator where 5V comes from switcher and its internal LDO used to gen the 3.3V...
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    Superposition circuits principal?

    Boost the LV supply, boost switching regulator. Then implement current sharing on outputs ? Or implement outputs as current sources, scaling each source for its appropriate current manageable load ? When you say 9V battery what is its current rating ? Same for D cell pack ? How long you want...
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    I need some help in making Good power stability circuit

    That module only needs 100 mA, why do you say 95 W ?
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    Is your pc or laptop not capable of using win 11?

    Hard to say. For example one can install without licenses now, and you get warnings (this is 2+ years running now) but everything works. The one area where this is a significant problem is drivers vendors no longer keep up with. So question is, is MS going the apple route where they want to...
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    Is your pc or laptop not capable of using win 11?

    Overcoming the Win 11 HW requirements to install Win 11 on a win 10 PC : https://geekflare.com/consumer-tech/install-windows-11-on-unsupported-pcs/
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