GW Instek APS-1102 User Manual - Manual (Page 114)

4.7 Synchronization of Output to External Signal
APS-1102 Programmable AC/DC Power Source 4-50
4.7 Synchronization of Output to External Signal
The APS-1102 is equipped with an externally synchronized oscillation function. The software PLL
function synchronizes the output frequency to the frequency of the external synchronization TTL signal.
The output frequency can be synchronized to any frequency from 40 to 500 Hz. The synchronization
phase difference cannot be set.
Select either external signal synchronous (EXT) or line synchronous (LINE) as the external sync signal
source.
When line synchronous is selected, synchronization is with the power source frequency.
Figure 4-15. Synchronized TTL Signal
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Output waveform example
External sync signal (TTL)