all digital DC speed regulation system
all digital DC transmission system
All-digital DC speed-regulating system
full digital DC drive system
full digital DC-drive controller
the Full Digital DC Drive
ABB all-digital speed regulating control systems
All digital architecture
all digital discriminating frequency
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 Photogrammetry