Recent content by marino

According to you this theorem is correct? Exercise 1.2 * Proof that ##\sqrt{x}## isn't a rational number if ##x## isn't a perfect square (i.e. if ##x=n^2## for some ##n∈ℕ##). In effect, if ##x=\frac{25}{9}##, so ##x## isn't a perfect square, then ##\sqrt{x}=\sqrt{\frac{25}{9}}=\frac{5}{3}##...

Intresting. Photovoltaic MOSFET drivers: TLP3905 Power MOSFET Photovoltaic Relay: PVG612PbF

How thinked by Windadct the source is ISOLATED, sorry for my misandestend! My question is: how to get a source voltage for net logic from Vs? The simplest way!

The control logic is simply an astable with an asymmetric retard for every state. This net give a signal of 0V or 5V to mosfet's. The mosfets are a pair of IRF740 used as an inexpensive SSR. The circuit works correctly, it works the same if I disconnect the connection from the logic net to the...

... getting the voltage from VS!

Sorry, here the circuit: The question: the simple method to eliminate VL?

Suppose the generator on the right that produce IAC is 30V (ac or dc). I want a voltage of 5V dc to alimentate the logic gates and then supply the correct voltage between the drain and gates of the mosfet. I cannot use simply a voltage regulator because then the drain of the transistors are...

In this circuit i want generate the floatin voltage from the external supply connected by a load to drain of transistors (suppose this is constant). So for me is possible to command the gates without an auxiliary low voltage battery. Taking advantage of the high sensitivity of the mosfet I...

The problem: a coil of radius r, length l and N turns, rotating with constant angular velocity ω around an axis perpendicular to its simmetric axis and passing for the center of the coil. The coils is submersed in a static magnetic field, intensity B0, perpendicular to the axis of rotation of...