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7. Principle of operation
7.1 Power electronics
The XANTO RT series essentially comprises the modules
depicted in the following block diagram:
Figure 8: Block diagram
A DSP (Digital Signal Processor) processes the current quality
information in the signal path and converts it in the power cir-
cuit using IGBT (Insulated Gate Bipolar Transistor) modules.
This ensures the XANTO RT series’ superior quality.
Below is a brief explanation of the modules and what they do:
•
Power input with input filter (EMI and Class D SPD):
Filters the input voltage so that any downstream sensitive
electronics are protected against faults such as overloads.
•
Rectifier with PFC (Power Factor Correction):
Transforms the input voltage into DC voltage for supplying
the battery and inverter.
•
DC/DC
converter:
Increases the battery voltage of 12V DC in order to supply
the ideal inverter operating voltage.
•
Inverter:
During normal operation: converts the rectifier’s DC voltage
into a precise AC voltage so that the load receives a con-
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