An transconductance (using voltage to control current) electronic component used for switching and amplification. Acronym for Metal-Oxide-Semiconductor Field-Effect Transistor. (from http://en.wikipedia.org/wiki/Transistor)
1
vote
2answers
442 views
Designing a simple automatic USB switch
I'm trying to come up with a simple way of sharing a USB peripheral between two USB hosts (computers) so that the host that is currently turned on controls the peripheral. I'm targeting low-speed ...
1
vote
1answer
248 views
Using BSS84 P-channel MOSFET
I am using a P-channel MOSFET as a switch in my design & I have connected the drain to the load. The load needs 0.8mA of current. How can I decide whether the MOSFET is conducting that much ...
1
vote
1answer
435 views
MOSFET Turns on without voltage on the gate?
I am using the following transistor to turn a motor on and off:
http://pdf1.alldatasheet.com/datasheet-pdf/view/418991/INFINEON/IPP096N03LG.html
I am applying 12V to the drain and 0V to the gate... ...
1
vote
1answer
574 views
Safe to use PWM source to control lights via MOSFET?
I'm a bit of a noob when it comes to electronics so looking for some advice on this project I have in mind.
Introduction
The goal is to have my garage door opener (GDO) switch a secondary set of 12v ...
1
vote
3answers
2k views
Voltage controlled current source
Here is a circuit that seems to work pretty well for allowing a voltage to control a current of up to maybe two amps.
It works on the falstad simulator (the triangle wave voltage input produces an ...
0
votes
1answer
410 views
Square Wave Voltage Level Shifting (Take 2)
After my question before, I tried to design a circuit with zener diodes and transistors for this issue.
It seems to work in simulation. Am I overdoing it? Are there any other simpler ways to do this, ...
