iseg SHQ 122 - Page 17

Spezialelektronik GmbH
iseg Spezialelektronik GmbH Email: sales@iseg-hv.de Phone ++ 49 (0)351 / 26 996 – 0
Bautzner Landstr 23 http://www.iseg-hv.com Fax ++ 49 (0)351 / 26 996 – 21
D - 01454 Radeberg / Rossendorf Germany 17
Appendix A:
Block diagram SHQ
LCD display / driver
Microcontroller
Reference
voltage
ADC
MUX
DAC 1
DAC 2
Front panel
operating elements
Resonance Converter
HV-Transformer
Rectifier
Polarity
switch
HV-Filter
HV-
OUTPUT
Ch1
Channel 1
rectifier
AGC amplifier
Precision-
V monitoring
max
I monitoring
max
Error logic
Inhibit
Supply voltage
monitoring
Hardware
voltage ramp
Filter
HV-
OUTPUT
Ch2
Channel 2
+/- 6V
+/-24V
Line voltage AC
R
S
2
3
2
-
I
n
t
e
r
f
a
c
e
DC supply /
Filter
RS 232 driver /
Opto coupler