Experiments, inventions, patents, …
IMPORTANT NOTICE: This video fixes a problem with the Scope Probe in the last mosfet video that caused an inaccurate display of the Drain Trace waveform. The previous video concerning the effect of Offset…
Here I continue to demonstrate the versatility of the simple Arduino pot-voltmeter system. NOTE: I get scrambled when I describe the mosfet pin hookup. The Load has no connection to the mosfet gate, it…
Here I show the simple DC Gate Threshold Voltage test for the IRFPG50 n-channel MOSFET. It is pretty easy to see that a voltage fluctuating around 4 volts on the gate is sufficient to…
The IRFPG50 is one tough transistor. Erratum: The duty cycle changed when I changed the range setting on the FG, and did not preserve the approx. 20 percent I had dialed in. Instead the…
ERRATUM: A couple of times I say “Drain” when I should have said “Source”. The actual intent is clear, I hope, since the wires are color coded. This video refutes the assertion by Rosemary…
I finally got my Slayer Exciter to run on a Mosfet transistor. The Mosfet is a Radio Shack IRF510 which isn’t supposed to work, but I got things just right and the magic light…
Usually we think of turning on a MOSFET by raising its Gate voltage to 10 or 12 volts above the negative rail/source voltage. But what if the Gate is pinned to circuit ground or…
Or: Why a simple 555 timer cannot produce all the effects of the Ainslie circuit. The complete circuit schematic is available for download here: www.mediafire.com For the negative gate drive, low heat mode which…
Please be sure to watch Parts 1, 2, and 3 first. Here I’ve taken out the light bulb (a low resistance non-linear load) and put 10 ohms of wirewound power resistors in its place….
A simple circuit describing high-side switching using a random N-channel mosfet. Also showing that the gate needs only Charge to switch and if the Charge stays on the gate it keeps the mosfet ON….