Selco GENESIS 145, Руководство по ремонту

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6.2) RECTIFIER BRIDGE AND DC LINK
The rectifier bridge has the job of making the first power conversion
and in particular of making an AC/DC conversion.
The sinusoidal input voltage is rectified by a Graetz bridge rectifier
which feeds a bank of smoothing capacitors.
Thus, the capacitor bank forms a DC LINK or a connection between
the rectifier stage and the inverter stage on which a constant voltage
difference is present.
The value of the DC LINK voltage can be easily calculated by the
following equation:
VBUS = x Vac = 1.41x30=+35Vdc
Therefore, a continuous voltage of +35V is present on the bus.
The DC voltage thus obtained will be the input voltage for the fol-
lowing inverter stage