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  1. B

    Logic Timer Switch

    Delay off timer module. Ebay, Aliexpress, Amazon.
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    current surge stalling engine

    As I said previously, send a circuit diagram of what you have there. Looks to me like you have nothing connected to the alternator output studs. Also as asked for previously, a link to the alternator specs. Lack of info will result in round and round going nowhere results.
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    How to achieve maximum power output from a center tapped transformer.

    No, one may be able to get a higher voltage due to less losses by using a schottky, but the available power output of the transformer remains the same.
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    How to achieve maximum power output from a center tapped transformer.

    power out is equal to power in less any losses no matter how you connect it using all outputs. Also note transformers output ac not dc.
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    current surge stalling engine

    What is the heatsinked device on the lower right connected directly across the battery.....? Seems to be heavy leads connected to some kind of isolator but nothing on the alternator output pins.?? How about a sketch of the wiring you have done..?? Half of the info will get only half an answer...
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    Induced current in a coil

    As already pointed out, it depends on the strength of the magnetic field.
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    Power Adapter Variance

    Why not simply purchase the correct power supply? Especially as you have no idea how to test any variable replacement. Not as though they are expensive. $15.00 I saw one quoted at.
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    current surge stalling engine

    Why won't you just give everyone a break and show what you have there and a diagram of what is connected where. While you are at it a link to the specs of the alternator. Thanks.
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    current surge stalling engine

    This should get you started.
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    current surge stalling engine

    Can be done but to start with it would be much easier with and external regulator. You would need an understanding of the operation of the alternator and be able to sort out the regulator wiring. Then make up a controller to manually control the rotor input.
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    Variable power to immersion heater by HF PWM the mains

    At around 20A on 220v, this would create surges in the mains that the installation may not be able to cope with. Let alone the supply authority complaints from neighbours etc.
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    replacing 24v motor with 48v motor in existing system

    Pulleys and vee belts on the output. Or another gearset. As you say, this is not a mechanical forum. Look at what existing pool cover motors might use.
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    current surge stalling engine

    Output would be limited by whatever load you have connected. I'd say you have something connected up a-about or the alternator is cactus.
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    Audio files on a chip

    SD card easy but you will need some kind of microcontroller, unavoidable for most applications. Arduino probably the most covered by internet examples so next to nothing to work out, just wire up and load a working and proven program. Easier than falling off a log.
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    Variable power to immersion heater by HF PWM the mains

    Yes, but if using AC, then you need phase or thermostatic control, not pwm. If on DC, then again, thermostat control would be much simpler and argueably, cheaper as well.
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    A car air conditioning based on STONE TFT LCD

    Yes, well, what I meant was, post your block diagram etc. here and we'll go from there. All well designed projects start this way.
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    Variable power to immersion heater by HF PWM the mains

    Is this heater DC..?
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    replacing 24v motor with 48v motor in existing system

    The ratio reduction I referred to wasn't necessarily "gears" as such. It is basically a term for ratio reduction. i.e. gear-up, gear-down, in top gear etc.
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    Negative dry film problem in removing second protective film

    Think you will find those all have a limited shelf life, at least that was my experience so 20 years ago. These days one can get 5 boards made (under a certain size) for $2.00. Postage racks that up quite a bit but still, professional quality stuff, short turn around, free design software with...
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    replacing 24v motor with 48v motor in existing system

    Yes. Leave all existing gear in place and gear down the drive mechanism by 50%. Much like starting a car in first gear instead of top gear. I wouldn't imagine high speed would be a factor in covering or uncovering a pool.
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