# Tagged Questions

481 views

### Extracting the Square Root of a Voltage

I'm trying to discover a circuit that will produce a voltage which is some factor of the square root of the input voltage. I.e. $V_{out}(t) = K\sqrt{V_{in}(t)}$. The factor K is irrelevant. I ...
344 views

### Why is voltage gradually increasing from the source of a power MOSFET?

I have the following set-up: also note that: when the motor is running, the voltage on the motor (between source of transistor and gnd) is at around 6V, but it gradually increases. my worry is ...
132 views

### Electronics Books [duplicate]

I am earching for a good book for electronic devices and circuits. Details about 'dc' as well as 'ac' biasing are what I am interested in. If you could guide me to a good book, it would be wonderful. ...
451 views

### Op amp voltage regulator using N-Mosfet

I am trying to make a voltage regulator using an op-amp and a MOSFET: I'm really new to electronics. Why is $V_{DS}$ always so low ?
466 views

### Detect “real” overcurrent/short-circuits vs. current peaks

We have a MOSFET that drives a load. The load has a sense resistor in its current path and its voltage is used to trigger a circuit that can disconnect the load if we detect an over current ...
641 views

### Voltage regulator with op amp(negative feedback) and MOSFET

The schematic above is a very good voltage regulator, excepting the high power dissipation for Q1 (also I'd use an NPN instead of a PNP). Can I replace Q1 and Q2 with a high current n-mosfet and ...
968 views

### OP amps with output on N-channel MOSFET

I need to analyze a schematic and I am having trouble with this part: The thing is I don't get at all the utility of the N-channel MOSFET at the output of the op-amp. Could anyone explain the ...