Search This Blog

LDMOS Amplifier for 630 meters

Fault protection code

Get link
Facebook
Twitter
Pinterest
Email
Other Apps

July 18, 2019

Today I wrote the fault protection code for the LDMOS amplifier. So it goes into fault mode if the temperature, current, or voltage goes too high.

Get link
Facebook
Twitter
Pinterest
Email
Other Apps

Comments

Schematic

September 10, 2019

Here's the schematic. It took 10 revisions to get everything working to my satisfaction.

Made a little more progress on the LDMOS amplifier. I added 4200pf of capacitance to one part of the output circuit and picked up some output power. Now I'm getting 150 watts out at max power. Half way there

Negative feedback installed

July 16, 2019

Getting closer to putting RF to the beast... I have the negative feedback circuit installed. A few more connections, then test it with a 48 volt power supply, then do some voltage and bias measurements.

Search This Blog

LDMOS Amplifier for 630 meters

Fault protection code

Comments

Post a Comment

Popular posts from this blog

Schematic

A few changes

Negative feedback installed