T1 c1 – Alpha Technologies APX Series User Manual

Page 9

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016-030-B0-005, Rev. C

AC power enters the module where it is converted to a “quasi” square wave and regulated (at
the required output voltage). It is then passed on to the load via the VSF fi tting located on the
baseplate assembly.

1.0 Introduction,

continued

1.1

Operating Principle, continued

Fig. 1-1, Ferroresonant ‘Tank’ circuit and resulting output waveform

A true RMS voltmeter must be used to correctly measure the output voltages.

NOTE:

Clean Output Waveform

Noisy Input Waveform

Ferroresonant Transformer and AC Capacitor