Circuit for generating first and second in-phase alternating sig

Details Circuit for generating first and second in-phase alternating sig Circuit for generating first and second in-phase alternating sig

1992-01-30

1993-11-09

Ng, Jin F.

328155, H03K 906, H03K 513

Patent

active

052606694

ABSTRACT:
A device for providing an orderly shut-down of a system of interconnected traffic lights upon loss of its primary electrical power is disclosed. A device for permitting consistent reapplication of power to a line conditioner having a ferroresonant transformer is also disclosed. Further, a battery charger for charging a battery system including a plurality of battery cells coupled in series is disclosed. Additionally, a device for determining proper operation of a power transistor by monitoring its saturation voltage and emitter current is also disclosed. Finally, a device for generating a first alternating signal in-phase with a separately generated second alternating signal is disclosed.

REFERENCES:
patent: 4215280 (1980-07-01), Mahig

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