Recent content by MHassaan

Please try to ANSWER my original question. And by answer I mean in a comprehensive way so that I can understand. If you need clarification in the question, ask, instead of making useless assumptions about it. My question was simple enough: "What is now preventing us from suddenly changing...

Then what is?

How is that possible? An instantaneous step input change in voltage CANNOT produce 'reasonable levels of load current'. According to i=C*(dv/dt), it will produce infinite current! So since you said 'We can set the voltage source to give a step change in its output' what will happen to the...

I am not posting more questions. I am asking for clarifications in the answers. What's wrong with that? I did not ask about stepping up the capacitor voltage. I was clearly referring to changing the input voltage instantaneously. Again, I was referring to the input voltage ONLY. What's...

Then if we can still change the output voltage abruptly, what will happen to the current? Won't it try to go to infinity? But what's stopping us from just inputting a step change to the power supply voltage? Whatever happens to the current and the capacitor voltage is just an outcome, right...

I had already read that whole thread before posting here. It doesn't answer my question.

Let's say we have a simple circuit consisting of a power supply and a resistor, and currently the input voltage is 0V. We now apply a voltage of 5V to the circuit (like a step increase - instantaneously). The voltage across the resistor changes instantaneously to 5V. If a capacitor is...

Hi everyone. I need to create a mechanism involving a 12" diameter horizontal tire, spinning at 3000RPM, with 2kg mass. The wheel will be attached to a spinning shaft. The only thing, I need to support the wheel from the bottom using flat bearings of some sort, so it can spin freely...

I need the ball to have a maximum speed of 160kph. To achieve that I need a minimum of 3000RPM.

Hi everyone, I am making a project involving shooting a tennis-sized ball by means of an automated mechanism. I have two horizontal wheels which are at the same height from the ground, and are spinning in opposite directions via motors. There is a space between them, a bit smaller than the...

Judging from all your answers, it is clearly not a good idea to attach the two motors at once to this power supply. Does anyone know of a power supply with a greater amp rating but the same voltage?

Hi everyone, I am in a situation where I need to run two 3000RPM, 24V, 15A DC motors from one 24V, 23A switching DC power supply, rated at 600W. Firstly, the power supply has three sets of DC outputs and one set of AC inputs. By sets I mean one positive and one negative. This means I can...

Hi everyone, I need a suitable power supply that runs off 240VAC (a regular mains socket found at home) to power two DC motors in parallel. The motors are each rated at 24V, and have a full load current rating of 15A. I've performed a search, but the power supplies I've found are either...

I suggest you use a geared motor with high torque.

Hi everyone, I have a 24V, 15A D.C motor, and need to control its RPM. I know RPM is directly proportional to voltage, and so the answer lies in a technique to vary the voltage across the motor. I have looked into potentiometers, variable resistors, and pulse-width-modulation, but since I...