Single-phase Phase-Locked Loop
Three Phase Phase-Locked Loop
ac nominal phase-phase potential transformer
all digital phase locked loop
all digital phase-locked loop
all digital phase-locked loop (all DPLL)
all digital phase-locked loop all DPLL
All digital phase-locked loop(ADPLL)
all digital software phase-locked loop
All-Digital Phase-Locked Loop
Analog phase locked loop APLL
analogue phase detection
automatic phase-locked loop
carrier phase locked loop
Charge pump phase locked loop
Charge Pump Phase-Locked Loop