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Certainly true but I really doubt it will matter much in this application. Especially with relatively high RDSon transistors.
But I like the flyback diode solution proposed by Tony
The output of the 55 timer is a totem-pole. There is a transistor that pulls the output up to Vcc and another one that pulls it down to ground (by which I mean battery negative). The amplifier stage you added only switches to ground and so there is not really a path to +12V when the 555 output...
I've never seen one. Possibly because UL limits wall warts and dekstop power supplies to 660 watts and you can achieve that without a fan.
Isolation voltage and creepage and clearance distances can be all over the place depending on the safety requirements they are designed to meet. You'd...
I am surprised the LED lit at all with the base open. There is some current getting into the base somehow. It doesn't take much and there could be surface leakage through contamination from you handling it.
>When I hooked up the base to the positive side, I could see amperage increase on the...
If your CT is too small, the core may be going in and out of saturation as the 100 Hz current changes. Can you replace it with a resistor and isolate your scope?
Honestly, if you're mucking about with SMPS, you probably should invest in a current probe. They are pricey but invaluable for such...
Note that the LM311 can easily drive an LED so you wouldn't need anything else, like an Arduino. Or, you can buy USB cables that have current/power indication built-in. Search Amazon for "usb c cable with display"
You need to monitor the current, not a voltage. Put a small-value resistor, like 0.1 ohms, in series with the power. Measure the voltage across the resistor. Since you don't actually need to measure the current, just detect a threshold, you can use a comparator such as LM311. If you did want...
True. If it gets hot, at least it is running. Then you can measure the frequency and figure out what inductance is needed. Of course, you'll need the voltages too but if it's a USB POL regulator, then you already know that.
Yes, it's an inductor. No, you can't just bridge it. You would definitely have to replace it with an inductor. You might try the largest inductance you can find in that package. If it's a buck converter, a larger inductor will work. If it's a boost converter, maybe not. Inductors like that...
I'm not questioning whether it is any good and I'll take your word for it. But how much community support is there for it? It can't compare to C. Same for jobs. Now, he may not care. I have a good friend who refuses to learn C because (he thinks) FlowCode is all he needs. I've written...
I get multiple emails per day and at least one call (two so far today) trying to hire an embedded C/C++ programmer. Nobody ever asks for a basic programmer. In fact, I've been doing this since before K&R came out and have never encountered swordfish basic until today.
But, you're right, Mike...
Since you have a delay function provided by swordfish, just do 240 delay(1000) in a loop.
I have no idea how interrupts work in Swordfish and I don't want to know. Danadak is right about the volatile storage class in C. I'm embarrassed to have omitted that tip.
If you have any plans of doing...
You can start a bar fight with this question. Without identifying the microcontroller, my answer is "C"
and knowledge of C will serve you well even if you eventually do all of your development in Python.
Certainly it is possible to create a stable 1.6 volt reference. Or any other voltage for that matter.
Check "The Art of Electonics" In the third edition, they're in chapter 9, section 10.
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