Spectrum analyzer Part IX High Voltage Supply

The workhorses of the spectrum analyzer the phase locked oscillators (PLO) need a control voltage greater than 20V. Scotty's controller pcb already has a switching converter section, but there were some problems  reported on the newsgroup. So Sam Wetterlin designed a new stand alone module for this purpose. It is a switching style design, but creates very little oscillator ripple at its input and output, and little radiation, though it still should be encased with a fence. 

Since I was lucky and got my hand on a pcb set which included also some Wetterlin pcbs I decided to use his design on my analyzer build.#

Soldering the module was pretty much easy and the module worked immeadetly.

#s

Sam Wetterlin's HV module

Links
HV Module Schema File
Pcb files
Sam Wetterlin Webpage


Spectrum analyzer Part I Controller board
Spectrum analyzer Part II Phase Detector
Spectrum analyzer Part III ADC 16
Spectrum analyzer Part IV Logarithmic Detector
Spectrum analyzer Part V Master Oscillator
Spectrum analyzer Part VI DDS 
Spectrum analyzer Part VII The Frame
Spectrum analyzer Part VIII The Mixer Modules