Apparatus for providing holdover power

Details Apparatus for providing holdover power Apparatus for providing holdover power

2008-09-09

2008-09-09

Sherry, Michael (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

Voltage regulator protective circuits

C361S111000

Reexamination Certificate

active

11137524

ABSTRACT:
Apparatus defining a circuit module for receiving an operating voltage on an input and for generating a voltage of a lower magnitude that is applied to an intermediate bus. A holdover energy source, such as an ultra capacitor or the like, of the circuit module has a voltage lower than said input voltage and the voltage of said intermediate bus. The holdover energy source is connected under control of a voltage supervisor to a boost converter in response to the receipt of a transient on the input. The boost converter is responsive to the connection to generate a boost voltage that maintains a constant voltage on the intermediate bus.

REFERENCES:
patent: 5734259 (1998-03-01), Sisson et al.
patent: 5903449 (1999-05-01), Garrigan et al.

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