dc circuit

Hi, I need some help for rescaling 0-10VDC to 10-0VDC modulating signal. for example: input 0VDC =Output 10VDC, 1VDC=9 VDC, 2VDC=8VDC...... 9VDC=1 VDC, 10VDC=0 VDC. Could anyone help me to build a circuit for this? I can provide 24VAC or DC from external source.

Tricky simple circuits in DC to help understand Power meaning

Hello! So the other night me and my wife had gotten a tread mill (Nordic trac elite 3700) off of Facebook marketplace for $50 and I tilted the walking track upwards last night and for some reason the incline motor decided to continuously lower itself. It appears it Endlessly increased its draw...

Hello, I need some help connecting an 8 pin current mode PWM controller to my boost converter circuit. Specifically this one. I have used controller IC's with integrated switches to make boost converters before, however, the amount of power I need to run through the circuit requires an external...

I wanna study about calculating the capacitance value using the graph Where can I study about it and here is the example graph for this

I have solved my question like that successfully with mesh analysis which the question wanted from me. But I am just curious that how can I calculate this circuit using nodal analysis? Here is my calculation: and here is the question of the circuit: I don't want the whole solution. I...

My mesh current equations: - 300*i1 + 500(i1 - i2) + 600*i1 = 0 - 200*i2 -25 + 13 + 500(i2 - i1) = 0 Since i1 is 25mA i2 can be found easily. However, equation 1 will yield 70mA while equation 2 will give 35mA for i2. What am I missing here? I would be very grateful if someone can point out...

I have a device that runs on -5v DC but I only have 120V AC. I need to build a power supply that can convert 120v AC to -5v DC. I need to draw the best power supple and indicate the wave form at each stage.