TurboChef NGC (Tornado) User Manual

+
(B)
-
(C)
(A)
-
4800 V
MAGNETRON VOLTAGE
0
-+-
+
2400
240
0
VDC
4800
VDC
Curr
ent
Flow
TRANSFORMER OUTPUT VOLTAGE
+
(B)
0
-
(C)
(A)
-2400 V
+
2400 V
-
-
++
240
0
VDC
2400
Curr
ent
Flow
CAPACITOR CHARGES
ON POSITIVE VOLTAGE SWING
CHARGED CAPACITOR PLUS TRANSFORMER
ON NEGATIVE VOLATAGE SWING
22
 : Microwave Circuit Theory of Operation
MICROWAVE CIRCUIT THEORY OF OPERATION
Figure 14
1. The High Voltage Transformer steps up the
input voltage to approximately 2400 volts peak
(4800 volts peak to peak).
2. The High Voltage Capacitor charges to 2400
volts on the positive going voltage via the High
V
oltage D
iode
’
s conduction.
3.
The High Voltage Transformer plus the charged
High Voltage Capacitor supply down to -4800
volts to the Magnetron when the voltage goes
negative. (High Voltage Diode is back biased.)
4. The Magnetr
on conv
er
ts negativ
e input voltage
(and current) to RF energy at 2450 MHz.
: D
o not attempt to measur
e
these voltages.
MICROWAVE SYSTEM PARTS
Figure 15
11. 102101 High Voltage Transformer 2
12. 102101 High Voltage Transformer 1
13. 100201 High Voltage Capacitor 2
14. 100201 High Voltage Capacitor 1
15. 100481 High Voltage Diode 2
16. 100481 High Voltage Diode 1
17.
102102
F
ilament
Transformer 2
18. 100083 Mag Cooling Fan
19.
101271 K3 Monitor Relay
20. 101271 K2 High Voltage Relay
21. 101271 K1 Filament Relay
22. 102102 Filament Transformer
23. 100599 F3 Fuse - 20 Amp
24.
102070
M
ag 2
Thermostat
25. 100861 Magnetron 2
26.
NGC-1106
W
ave Guide #2
27.
102070
Mag 1 Thermostat
28. 100861 Magnetron 1
29. NGC-1044 Wave Guide #1
THE MICROWAVE SYSTEM

TurboChef NGC (Tornado) Specifications

General

Brand	TurboChef
Model	NGC (Tornado)
Category	Oven
Language	English