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It's like the weakest point in the system. For example on a car the tires may only be good up to 130 mph but the engine can go up to 140 mph. Or something like that, I'm not a car person. Really it' …

First question. No. It is not a good idea to exceed the rating of the converter's output switch, because it may break down. The switch is like a diode, it can only handle so many volts across it in th …

It is a switching power supply. The transistor (probably in the control IC) turns on, pulling current through the primary. As I understand it, this stores energy in the transformer (don't ask me how!) …

I'm looking for a device which monitors a 3.3V line. When the line drops below, say, 2.7V, I would like it to switch power over to a battery backup (3V lithium coin cell.) It would also be good if it …

If you do this with a single battery, you will probably be fine. But if you decide to move it to a car, you must be very careful of load dumps. If you are using your synth in your car and you turn the …

Take into account that the output of the PSU under load never changes instantly, due to the inductance of the transformer, the output inductors and the caps. The MOSFET should go pop before anything b …

I think that just putting a 2.2mF capacitor across the battery terminals will work well enough to smooth voltage. I presume the voltage dips when the ESC draws large current pulses for the motor.

I have a 200V DC power input and I need to, with no external voltages, generate a 12V-24V voltage to run the control electronics off, at about 50mA. I've considered zener diodes and potential divide …

This is in danger of becoming a computer question, but I've always wondered why do computer power supplies have so many 12V "rails". I have a 800W dead supply with four 12V 16A "rails", but internally …

I have a 6V to 20V input I want to convert to 12V at 1 amp maximum continuous current. The output must be the same polarity as the input, so that pretty much means a SEPIC is the only way to go... How …

The current will be the same for all parts of the circuit, and in this case be about 90A as the diode can be considered to be a low resistance 10V drop.

Something like this Falstad sim version of it (I'm tired, I keep making mistakes, so please excuse me for the second time.) Now these are not very safe PSU's, due to the lack of isolation. But in …

I am designing a circuit which may fail to start up. It has a power good output which is high when the supply is working. When the power good output goes low, the circuit has failed to start oscillati …

Pin 3 is a ground. Use this to your advantage; the outputs on a microcontroller can be set to either tristate or ground. Then, using an array of resistors, you can program the voltage by pulling down …

I have an 800W ATX power supply given to me by a friend because it doesn't work any more. It's quite a beast and would set me back a considerable amount new, so I'd like to see if I can fix it. Well, …