Motor drive circuit with reverse-battery protection

Multi-level power converter

Multiphase blocking circuitry for electrical power supply networ

Multiphase fault protection circuitry with variable functional l

Multiphase frequency selective phase locked loop with multiphase

Multiphase undervoltage tripping circuitry for electrical power

Multiple circuit overload protection device

Negative and zero sequence directional overcurrent unit for AC p

Negative sequence differential element

Negative sequence directional element for a relay useful in prot

Negative sequence directional element for a relay useful in prot

No-brake power transfer phase balance sychronization sense circu

Opposite phase detecting device for alternating current electric

OR-diode inductive load spike suppressor

Out-of-step relay

Output protection for arc discharge lamp ballast

Output stage for an ac voltage switch

Over-current protection device for a switched-mode power supply

Over-voltage protected semiconductor device

Overcurrent detecting device