26 THE MICROWAVE SYSTEM

TRANSFORMER OUTPUT VOLTAGE

+(B)

+2400 V

0

(A)

-2400 V

-(C)

2400

VDC

+ + -

2400 Current

Flow

-

CAPACITOR CHARGES

ON POSITIVE VOLTAGE SWING

F I G U R E 19: Voltage Doubler Circuit Theory of Operation

MAGNETRON VOLTAGE

+(B)

0

(A)

 

-(C)

-4800 V

 

 

 

2400

 

 

VDC

 

-

+ -

 

2400

Current

4800

VDC

 

Flow

 

 

+

 

 

CHARGED CAPACITOR PLUS TRANSFORMER

ON NEGATIVE VOLTAGE SWING

VOLTAGE DOUBLER THEORY OF OPERATION

Figure 19

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 volt- age diode’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 magnetron converts negative input voltage (and current) to RF energy at 2450 MHz.

W A R N I N G : Do not attempt to measure these voltages.

MICROWAVE SYSTEM PARTS

Figures 20 and 21

11.NGC-3062-1 HV Transformer (2 per oven, 1 per kit) - USA, Mexico, Brazil, S. Korea

NGC-3062-2 HV Transformer (2 per oven, 1 per kit) - Europe, Asia, Pacific, Australia, UK, Ireland

NGC-3062-3 HV Transformer (2 per oven, 1 per kit) - Japan

12.NGC-3020 High Voltage Capacitor (2 per oven, 1 per kit) - USA, Mexico, Brazil, S. Korea

NGC-3020-2 High Voltage Capacitor (2 per oven, 1 per kit) - Europe, Asia, Pacific, Australia, UK, Ireland, Japan 50 Hz

100207 High Voltage Capacitor (2 per oven, 1 per kit) - Japan 60 Hz

Page 36
Image 36
Turbo Chef Technologies NGC-1007 service manual Microwave System

NGC-1007 specifications

TurboChef Technologies has made a substantial impact in the commercial cooking industry with its advanced cooking equipment, and one of their standout products is the NGC-1007. The NGC-1007 is a revolutionary cooking oven designed to meet the demands of high-paced kitchens while ensuring superior cooking quality and efficiency.

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In summary, the TurboChef NGC-1007 is a game-changer for commercial kitchens looking to optimize their cooking processes. With its high-speed cooking capabilities, intuitive controls, durable construction, energy efficiency, and ease of maintenance, it stands out as a reliable option for chefs aiming to elevate their culinary output while managing time and resources effectively.